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- Faiz Mohsin
- K. Singh
- P. S. Rawat
- H. S. Ginwal
- R. C. Dubey
- D. K. Rajput
- K. G. Sood
- G. S. Rawat
- Deepak Kumar
- Falz Mohsin
- S. S. Jattan
- S. K. Lavania
- Virendra Singh
- Kiran Bargali
- S. P. Singh
- D. Rawat
- Vaneet Jishtu
- Faiz Morsin
- V. P. Upadhyaya
- B. S. Rana
- D. V. Negi
- Prakash Chand
- L. S. Lodhiyal
- N. Bahar
- R. C. S. Negi
- Y. S. Rawat
- S. C. Garkoti
- M. K. Gupta
- Bhagwati Prasad
- Nawa Bahar
- M. N. Jha
- P. C. Pathak
- H. N. Mathur
- K. M. Tiwari
- O. P. Chaturvedi
- K. C. Sharma
- A. K. Gupta
- O. N. Kaul
- V. K. Srivastava
- K. Gurumurti
- R. K. Pandey
- T. R. Dutta
- S. D. Gupta
- R. N. Mathur
- V. K. Sharma
- R. C. Ghosh
- N. K. Mathur
- K. K. Sharma
Journals
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Singh, R. P.
- Nutrient Uptake of Poplar Plantation at Various Ages of Growth in Isolated and Intercropped Stands under Agro-forestry System
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Indian Forester, Vol 131, No 5 (2005), Pagination: 681-693Abstract
Net primary productivity, concentration of N, P, K(% dry weight) standing state of N, P, K (kg ha-1), uptake of N, P, K (kg ha-1 y-1) in different components of Populus deltoides at different ages as affected by different treatments were studied under agro-forestry systems involving P. deltoides with intercrop of aromatic crops at Central Institute of Medicinal and Aromatic Plants, Regional Centre, Pantnagar, Uttaranchal. NPP was found lowest in pure stands of P. deltoides than the intercropped stands. Among the intercropped stands it is found highest in M. arvensis and lowest in Cymbopogon winterianus. The concentration of N, P, K in different tree parts decreased with the increase in age of plantations. It remained at a lower level in pure stands in comparison to intercropped stands. Standing state of N, P, K (kg ha-1) in different components of P. deltoides, increased with the increase in age of plantations. But, in uptake of N, P, K (kg ha-1 yr-1) in different components of P. deltoides, decreased as the tree goes towards maturity, but in foliage it is just reverse to the above fact.- Vertical Distribution of Ectomycorridzae in Deodar and Chir Pine Forests in Relation to their Soil Characteristics
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Indian Forester, Vol 129, No 5 (2003), Pagination: 624-630Abstract
Vertical distribution of ectomycorrhizae in natural forests of Deodar (Cedrus deodara) and Chir pine (Pinus roxburghii) of Central Himalayas has been studied in relation to soil properties at various soil depths (0-30 cm). Soil moisture, pH, organic C. organic matter, total N and available P decreased along the soil depths in both of forest. Live, dead and total mycorrhizal counts were more in C. deodara and P. roxburghii. Highest numbers ofmycorrhizae were recorded between 6-10 cm depth. Apparently, a drastic change in mycorrhizae counts were recorded at soil depth below 15 cm significantly, (P- Biomass of Eucalyptus Hybrid Plantations under Agroforestrysystem
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Indian Forester, Vol 129, No 8 (2003), Pagination: 1037-1040Abstract
Eucalyptus hybrid trees grown in stands intercropped with various Mentha and Cymbopogon spp. attained better growth than pure stands at juvenile (2 and 3 yrs.) and advanced (6 and 7 yrs.) ages. Bolewood provided maximum contribution among all the components in pure as well as intercropped stands at all the age group of trees. It was further revealed that the total biomass was highest in the plantation of Eucalyptus hybrid of all the ages intercropped with Mentha spp. It decreased in Cymbopogon spp. but still reained higher than that of pure stands which showed lowest biomass production.- Upischolar_maining of Lantana - a Comparative Study
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Indian Forester, Vol 127, No 5 (2001), Pagination: 512-518Abstract
Lantana, the North American weed which migrated to India via Sri Lanka, has spreading rapidly covering vast area of forest, agriculture and wasteland etc affecting the growth of main vegetation. It can not be eradicated completely, till it is upischolar_mained. Presently the plants are either cut or dug out by traditional method. In this process, after some time the ischolar_mains of Lantana sprout again and the plants spread more densely covering still larger area. In this paper we present results of extensive field trials with a Stalk Puller developed by FRI to determine in getting rid of the menace its suitability, efficiency and economics as compared to conventional method. Detailed time and cost study was also conducted. The Stalk puller developed was found more advantageous and efficient.- Root Studies in a Eucalyptus Hybrid Plantation at Various Ages
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Indian Forester, Vol 126, No 11 (2000), Pagination: 1165-1174Abstract
Radial and vertical distribution of ischolar_main biomass (gm) of Eucalyptus hybrid trees at early (2 and 3 yrs) and advanced age (6 and 7 yrs) were studied. The total ischolar_main biomass decreased continuously with increasing radial distances from the tree base of all the soil depths. At early ages, the ischolar_mains of the trees were mostly concentrated near the base of the trees but in later ages the ischolar_main system tended to proliferate uniformly around the trees, The total ischolar_main biomass decreased continuously with increasing soil depth at all the radial distances and under all the age groups. At the age of 2 and 3 years the total biomass of medium (0.5 - 1.5 cm dia.) ischolar_mains was higher than other ischolar_main grades. But at the age of 6 and 7 years the total biomass of thick ischolar_mains was much higher than other ischolar_main grades.- Effect of Gibberellic Acid and pH on Seed Germination in Blue Pine (pinus wallichiana, A.B. Jacks)
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Indian Forester, Vol 132, No 8 (2006), Pagination: 1024-1028Abstract
The present study was undertaken to assess the effect of different concentrations of gibberellic acid treatment and pH solution on germination and germination value in Pinus wallichiana. The results of the study clearly indicated that the seed germination was hastend to maximum by the application of 300 ppm GA3 for 24 hours or 200 ppm GA3 or 36 hours indicating thereby that as the soaking period increased, GA3 concentration decreased. Germination value also followed the same trend. The maximum germination and germination value was obtained at pH 6.0.- Seed Characteristics and Germination Behaviour of some Early and Late Successional Tree Species on a Nutrient Gradient
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Indian Forester, Vol 124, No 3 (1998), Pagination: 247-251Abstract
Seed characterlstics and germination behaviour on nutrient gradient was studied in three early and three late successional tree species. It was found that early successional species have lower seed dry weight (835 to 110 mg seed-1) in comparison to late successional species (1,250 to 7,250 mg seed-1). Seed moisture content was also greater for late successional species (52.58%) than for early successional species (19.97%). However, per cent germination was lower for late successionaispecies (65%) in comparison to early successional species (78%). All species showed broad germination responses on the nutrient gradient.- Agroforestry in Cold Desert Areas of Himachal Pradesh, India
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Indian Forester, Vol 124, No 5 (1998), Pagination: 321-330Abstract
Agroforestry plays an important role in the development and improvement of an area. The existing agroforestry practices in different parts of India and their potential contribution to sustainable development in cold desert region of Himachal Pradesh, India, as well as the potential for developing and improving agroforestry with rural people participation has been recommended. Different agroforestry systems have been suggested for improving tbe productivity of land in cold desert region.- Biomass Distribution in Populus deltoides Under Agroforestry System
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Indian Forester, Vol 125, No 8 (1999), Pagination: 794-798Abstract
Populus deltoides trees grown in stands treated with various Mentha and Cymbopogon'spp. attained better growth than their pure stands at juvenile (2 and 3 years) and advanced (6 and 7 years) ages. Bolewood provided maximum contributed among all the components in pure as well as intercropped stands at all the age group of trees. It was further revealed that the total biomass was highest in the plantation of P. deltoides of all the ages intercropped with Mentha spp. It decreased in Cymbopogon spp. but still remained higher than that of pure stands which showed lowest biomass production.- Magnitude of Retranslocation of N, P, K in Eucalyptus Hybrid Intercropped with Aromatic Crop
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Indian Forester, Vol 125, No 11 (1999), Pagination: 1117-1124Abstract
The annual litter production increased with increasing age of the Eucalyptus plantations both in the pure and intercropped stands with Mentha and Cymbopogon spp. An increase in litter production was recorded in all the intercropped in comparison to pure stands at all the ages. Higher concentration ofN, P and K was observed in the litter of the intercropped stands which decreased with increasing ages of the stands. Nutrient concentration in green foliage, decreased with increasing ages of the stands. It was higher in the stands intercropped with Mentha and Cymbopogon spp. Than the pure stands. Magnitude of retranslocation (%) in pure as well as intercropped plantation, increased with increasing ages of the stands.- Soil Respiration in Disturbed forest Ecosystems of Central Himalaya
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Indian Forester, Vol 123, No 1 (1997), Pagination: 77-82Abstract
An in-situ soil respiration study was conducted in landslide damaged and undamaged pine and oak forests of Central Himalaya to evaluate the seasonal differences in CO2 evolution in different components of the soil system. Higher respiration rates were observed in rainy season (September) across all sites followed by summer and low in winter season. Soil respiration on 8 and 30 year old damaged sites was 86 and 20% less than the undamaged site, respectively. Across all sites increase in soil respiration was positively related to age of site. Litter removal reduced total respiration by 18%. Bulk density, soil N concentration and air temperature explained 90, 78 and 80% variability in total respiration. The respiration rates of Central Himalayan forests roughly equal the respiration rates of tropical rain forests.- Colutea nepalensis Sims. - an Important Shrub of Cold Desert Region of India
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Indian Forester, Vol 123, No 7 (1997), Pagination: 637-642Abstract
The study was conducted in the cold desert region of India in the State of Himachal Pradesh and Jammu & Kashmir. Colutea nepale1UJis Sims attains an average height of 1.20 m with 2.50 m2 average crown area. The shrub provides effective soil cover and binds soil over an area of 3.25 m2. The contribution of aboveground biomass was maximum (57.61%) to the total biomass followed by ischolar_main biomass (42.39%). The taper rate varies from 0.21 to 0.42 in tap-ischolar_main and 6.17 to O.30inlateral ischolar_main, which itself is an indication of the strong ischolar_main system of the species. Stem contributes maximum energy content (4400.0 cal/g dry weight) followed by ischolar_main (4000.0 cal/g dry weight) and leaves (3270.0 cal/g dry weight) in descending order.- Ecological Studies on Rosa webbiana Wall. Ex Royle in Cold Desert Areas of Spiti Valley in Himachal Pradesh
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Indian Forester, Vol 123, No 9 (1997), Pagination: 827-830Abstract
The present study was conducted in the cold desert areas ofSpiti Valley in the State of Himachal Pradesh. Rosa webbiana, seeds should be treated with concentrated sulphuric acid for 20 minutes duration to enhance its germination. It can be propagated by stem cutting and ischolar_main suckers. Stem and branches contribute maximum to the total biomass followed by ischolar_main and leaves in that order. Approximately twenty shoots sprout from single ischolar_main stock and form a colony over barren slopes which checks the erosion. Total biomass on dry weight basis was 5.42 kg/plant and energy ranged from 3.1 to 4.2 K.cal/g dry weight. An average bush accumulates 20615 K.cal of energy per plant.- Nutrient Cycling of Eucalyptus Plantation in Relation to Stand Age in Agroforestry System
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Indian Forester, Vol 122, No 1 (1996), Pagination: 69-76Abstract
The annual litter production increased with increasing age of the Eucalyptus plantations both in the pure and intercropped stands with Mentha and Cymbopogon spp. An increase in litter production was recorded in all the intercropped in comparison to pure stands at all the ages. Higher concentration of N, P and K was observed in the litter of the intercropped stands which decreased with increasing ages of the stands. The total addition of nutrients through litterfall to the soil was higher in the intercropped than the pure stands. The N, P and K contents of the soil under the pure stands was higher than those of inter cropped stands. Maximum amount of N and K was found in the superficial layer of the soil which decreased with increasing depth. Most of the Phosphorus was accumulated in the soil at the depth of 15-30 cm in all the stands. The available N, P and K in the soil increased with increasing age of the stands.- Performance of Exotic Poplars under Nursery Conditions in Himachal Pradesh
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Indian Forester, Vol 122, No 2 (1996), Pagination: 122-127Abstract
In search of promising clones suited to lower areas of Himachal Pradesh, a nursery trial of twenty nine exotic clones received from Forest Research Centre, Lal Kuan (Uttar Pradesh Forest Department) was conducted. Populus deltoides clones 247/84,75/84,29/82,200/84 and 51/84 and American clones 110702, S7Cl, ST-72 and 64-243-1 were proved to be the best suited for this tract. These clones are being further tested in different nurseries, situated in different agro-climatic conditions, of Conifers Research Centre, Shimla for Large scale plantation programme.- Growth and Biomass Production by Populus deltoides Under Agroforestry in Tarai of Kumaun Region, U.P.
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Indian Forester, Vol 122, No 7 (1996), Pagination: 631-636Abstract
Populus deltoides trees grown in stands treated with various Mint and Cymbopogon spp. attained better height and dbh than their sole stands at their early (2 and 3 years) and advanced (6 and 7 years) ages. The contribution of various components viz., bole branches, foliage and bark to the above ground biomass varied in the sole and treated stands. At all the ages the contribution of bolewood remained highest followed by branches, foliage and bark both in the sole and treated stands. Bolewood contribution was maximum in the sole in comparison to treated stands, whereas contribution of branches, foliage and bark remained highest in the stands treated with M. arvensis and lowest in sole stands. The respective values for other treated stands remained in between the sole and M. arvensis treated stands at all the ages.- Dry Matter Production in a Poplar (Populus deltoides Marsh) Plantation of Central Idmalayan Tarai
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Indian Forester, Vol 121, No 5 (1995), Pagination: 383-389Abstract
Biomass and net primary productivity estimates of eight year poplar (Populus deltoides D-121 clone) plantation are described. Of the total biomass (176.4 t ha-1) and net primary productivity (24.5 t ha-1yr-l) trees accounted for 96.4% and 89% respectively. Present estimates of biomass and NPP are higher than other fast growing poplar and Eucalyptus species of the region. Therefore, it is suggested in the favourable conditions of the Central Himalayan Tarai the trees of P. deltoides D-121 clone should be harvested in eight year short rotation period.- Impact of Grazing on Soil Erosion in Forest Ecosystems
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Indian Forester, Vol 121, No 8 (1995), Pagination: 717-720Abstract
The effect of grazing on soil erosion in forest ecosystem was observed. It was seen that the grazed plot had approximately seven time more than soil loss per annum compared to ungrazed (control) plot under Cedrus deodara forest. The amounts of all the nutrients loss was recorded several times more in grazed plot than that of control. The amount of litterfall was recorded 3.3 times more annually in control stand corresponding to grazed stand.- Influence of Sowing Methods and Media Used on Germination and Growth of Some Exotic Pines
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Indian Forester, Vol 121, No 8 (1995), Pagination: 721-727Abstract
The study was conducted to determine suitable method and covering medium for the germination of seeds of exotic pines. The results showed that covering medium sand and line sowing method gave higher germination percentage and better growth of seedling as compared to other method and medium.- Certain Experiments on Nursery Techniques for Propagation of Poplar Plants from Shoot Cuttings
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Indian Forester, Vol 121, No 7 (1995), Pagination: 634-642Abstract
Cuttings obtained from one year old poplar plants or stool shoots gave better nursery stock than the cuttings obtained from older trees. Longer cuttings (35 cm length) gave better growth as well as survival of plants than smaller cuttings. Thicker cuttings (2.5 cm diameter) proved better than thinner cuttings (1-2 cm diameter). Best time of planting was January and in no case planting of cuttings beyond February is advisable. Of the various a pre-treatments, the soaking of cuttings in water for 12 hours before planting gave better results. Different spacings tried had no significant effect on survival of plants in nursery. The 40 × 60 cm spacing is recommended for best height and diameter growth.- Effect of Temperature and Dessication on Seed Germination and Shade and Moisture Levels on Seedlings Growth of Pinus patula
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Indian Forester, Vol 120, No 3 (1994), Pagination: 220-224Abstract
This paper presents the results of an investigation carried out for the effect of temperature and seed dessication on seed germination and seedling growth of Pinus patula. The result revealed that the maximum seed germination occurred under 3O°C. The low shade level and high moisture levels provided best growth to Pinus patula seedlings. The ischolar_main:shoot ratio was high at intermediate shade level.- Occurrence of Loranthus Spp. On Oak in Kumaun Himalaya
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Indian Forester, Vol 120, No 3 (1994), Pagination: 248-253Abstract
Occurrence and infection intensity of Loranthus spp. On four species of Quercus viz. Q. floribunda,Q. lanuginose, Q. leucotrichophora and Q. semecarpifolia were studied in Naintal of Kumaun Himalaya. Occurrence of the parasite was maximum in Q. floribunda and minimum in Q. lanuginosa. In no case Q. semecarpifolia was found infected. Infected was absent in seedling and saplings but manifested with increasing severity with tree age.- Biomass and Production Patterns of Three Dominant Tree Species along a Girth Series in a Natural Tropical Forest at Chakia, Varanasi (India)
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Indian Forester, Vol 119, No 6 (1993), Pagination: 472-480Abstract
This paper deals with pattern of biomass, net primary production and relative growth rate of three dominant species (Shorea robusta, Madhuca indica and Buchanania lanzan) along a tree girth or age series within tropical dry deciduous forest. Total tree biomass for the species ranged between 651475.0 kg per tree for a corresponding range of 15-95 cm gbh (girth at breast height). Bole and branches accounted for 90.95% of total above-ground biomass. Roots showed 13.37% of the total tree biomass. Logarithmic regression equations relating tree components and total tree biomass to gbh were quite satisfactory. Mean annual production and current annual production increased with age for all three species. In each species leaves accounted for the largest proportion of the cumulative production during the life time of the tree. The largest proportion of biomass resided in the hole. Relative growth rate showed a decreasing trend with increase in age or gbh of a tree.- Vegetation Survey and Ecological Studies under Silver Fir and Spruce Forests of Himachal Pradesh
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Indian Forester, Vol 118, No 7 (1992), Pagination: 460-465Abstract
This paper describes the phytosociological studies under spruce-fir (Picea smithiana and Ahies pindrow) forests at Narkanda, Himachal Pradesh. Abundance, frequency, density, Importance Value Index (I.V.I.) and morphological characters such as diameter, height and basal area have been worked out for individual ground vegetation species. The community is dominated by Fragaria indica and the contribution of Swertia chirata is recorded least in community development.- Cotoneaster microphylla Wall. - a Suitable Species for Soil Conservation in Temperate Regions of Himalayas
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Indian Forester, Vol 118, No 9 (1992), Pagination: 672-675Abstract
Cotoneaster microphylla Wall, seed has seed coat dormancy and concentrated sulphuric acid treatments proved effective in hastening germination. Roots of a single plant can bind soil upto 1.88 m2 with the strong lateral and fibrous ischolar_mains The taper rate of lateral ischolar_mains varies from 0.10 to 0.16 which itself is an indication of strong ischolar_mains. Intricately branched aerial portion of this species spreads on an average over 2.26 m2 land surface and helps in checking splash erosion.- Autecology of Ailanthus glandulosa Desf. in Western Himalayas
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Indian Forester, Vol 118, No 12 (1992), Pagination: 917-921Abstract
The autecology or Ailanthus glandulosa Desf. in Western Himalayas was studied. Its biflmass and ischolar_main development was analysed. It is a good soil binding tree species and reproduces through seed and ischolar_main suckers. Seed remains viable for over one year.- Erodibility Status of Different Forest Soils in Himachal Pradesh
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Indian Forester, Vol 117, No 6 (1991), Pagination: 476-484Abstract
The Present Investigation Deals with Tbe Erosional Behaviour of Soils under Different Types of Land Use and forest Cover in Shimla, Bilaspur, Dharamsala and Nurpur forest Divisions of Himachal Pradesh. Suspension Percentage, Clay-moisture Equivalent Ratio, Dispersion and Erosion Ratio and Erosion Index have been Worked Out. Dispersion and Erosion Ratio and Suspension Percentage are Considered the most Elfective Indices of Soil Erodibility in the Present Study. On the Basis of Soil Studies, the Surface Soil of all the Areas is Affected by Sheet Erosion. The Erodibility Status of the Soils under Different Types of Land Uses have been Worked out in the Order: Scrub forest Soil > Orchard Soil > Burned forest Soli > forest Soil.- Plant Biomass and Productivity Estimates for Central Himalayan Mixed Banj Oak (quercus leucotrichophora A.Camus)-chir Pine (Pinus roxburghii Sarg.) Forest
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Indian Forester, Vol 116, No 3 (1990), Pagination: 220-226Abstract
Plant biomass and net primary production of a mixed banj oak (Quercus leucotrichophora A.Camus)-chir pine (Pinus roxburghii Sarg) forest are described. Of the total forest biomass (4328 t ha-1) and net primary production (18.9 t ha-1 yr-l) trees accounted for 98.5% and 84.1% respectively. Present estimates are comparable with the forest communities of highly favourable environment.- Studies on Root Behaviour, Biomass and Morphological Characters of Indigofera gerardiana Wall. In Western Himalayas
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Indian Forester, Vol 116, No 7 (1990), Pagination: 584-588Abstract
Indigofera gerardiana Wall, attains an average height of 1.37 m with 3.66 m2 average crown area. This shrub provides effective soil cover. Stem contributes maximum (53.8%) to the total biomass followed by ischolar_main (35.6%) and leaves (10.4%). Roots of a single plant can bind soil upto 1.34 m2 with the strong tap and lateral ischolar_mains. The taper rate varies from 0.19 to 0.25 in tap ischolar_main and 0.08 to 0.15 in lateral ischolar_mains which itself is an indication of strong ischolar_main system.- A Note, on Biomass and Root Characteristics of Artemisia maritima Linn.
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Indian Forester, Vol 116, No 8 (1990), Pagination: 674-675Abstract
No abstract- Studies on Biomass and Morphological Characters of Impatiens thomsoni Hook
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Indian Forester, Vol 116, No 9 (1990), Pagination: 757-758Abstract
No abstract- Soil and Vegetation Study of Lahaul and Spiti Cold Desert of Western Himalayas
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Indian Forester, Vol 116, No 10 (1990), Pagination: 785-790Abstract
Soil properties and vegetation studied in different localities of Labaul and Spiti valley of Western Himalayas are briefly described. The soil is silty clay loam, silty loam in texture having more alkalinity. Organic matter content varies from 0.08 to 2.98 per cent in the soil samples collected from different localities in the area under study. The nutrients e.g. Ca, K, Na and P were observed in decreasing order in all the sites. The growth of tree species, grasses and shrubs is poor because of the short growing period which is hardly five to six months or sometimes even less. Frequency, density, abundance, relative density and Importance Value Index (I.V.I.) bave been determined for each species. Hippophae rhamnoides is an important shrub used as fuelwood and as protective hedge. Important tree species of this valley bave also been described.- Soil Chemical Properties of Silver Fir and Spruce forests under Different Systems of Silviculture.
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Indian Forester, Vol 116, No 11 (1990), Pagination: 883-889Abstract
To study the effects of different management practices I e. selection, shelterwood and clearfelled on the status of soil potassium (total and available). An investigation has been carried out in silver fir (Abies pindrow) and spruce (Picea smithicna) forest of Narkada under Kumarsein Forest Range of H.P. Soils of this region were found sufficently rich in soil potassium contents with specific effects of management systems and site conditions clearly marked. Soil potassium decreased with increasing soil depth in all sites and management systems Intercorrelation between total and available potassium form was observed to be significantly positive. Soils of selection management system showed higher content of soil potassium followed by shelterwood and clearfelled systems, Same trend was observed in good, average and poor sites.- Studies on Biomass, Fodder Value, Coppicing Ability and Energy Contents of Debregeasia hypoleuca Wedd. in Western Himalayas
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Indian Forester, Vol 116, No 12 (1990), Pagination: 946-952Abstract
The present paper deals with the biomass of different plant parts, leaf fodder production. Coppicing effect and energy status of hypoleuca plants grown in nursery and under wild conditions. Emphasis has heen given on the need of fuelwood requirement of a family having five family members and its mitigation through the wood production of D hypoleuca. D hypoleu a coppiced well and the yield of branch wood, after coppicing, increased with increasing collar diameter. A farmer can grow D. hypoleuca easily on bis field boundaries or on terraces to fulfill his fodder, fuel and ropes requirements.- Soil Chemical Properties of Silver Fir and Spruce Forest Under Different Systems of Silviculture. I-Changes in Soil Nitrogen
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Fertility, Silver Fir, Spruce
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Indian Forester, Vol 115, No 4 (1989), Pagination: 235-242Abstract
Silvicultural management practices have differential impact on soil properties according to the system followed. An investigation was carried out in Picea smithiana and Abies pindrow forests managed under selection, shelterwood and clearfelled systems in Kotgarh Forest Division (H.P.) to quantify the differences in soil nitrogen status at different sites in the three management systems. Inter-correlation between total and available nitrogen, correlation of nitrogen status with soil depth in all the conditions have been reported Soils under selection system showed higher nitrogen accumulation followed by shelterwood and clearfelled systems. Soil nitrogen showed significant negative correlation with depth in all sites and management systems. A vailable and total nitrogen showed significant positive correlation in all sites and management systems.Keywords
Conifer Forests, Silvicultural Management, Soil Fertility, Soil Nitrogen, SiteFertility, Silver Fir, Spruce
- Hydrological Response of Coniferous Forest in Temperate Region of Himachal Pradesh
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Indian Forester, Vol 115, No 5 (1989), Pagination: 310-319Abstract
The role of forest in hydrological behaviour of a watershed is well recognised. The present paper deals with the different aspects of hydrological cycle in coniferous forests of Himachal Pradesh and some suggestions have been made to minimize the soil erosion and sedimentation.- Infiltration Studies Under Different Forestry Management Systems in Western Himalayas
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Indian Forester, Vol 115, No 10 (1989), Pagination: 706-713Abstract
The present study reveals that selection system soil has more infiltration capacity than that under clearfelling system. Selection system provides longer opportunities for infiltration in comparison to clearfelled system due to more organic matter (6.72%) which increased porosity (56.7%) and water holding capacity (71.3%) of the forest soil. Clearfelling system provides less organic matter (4.62%) to the soil hence porosity (41.2%) and water bolding capacity (46.4%) of tree-less soils are comparatively lower.- Soil Chemical Properties of Silver Fir and Spruce Forest Under Different Systems of Silviculture. II-Changes in Soil Phosphorus
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Indian Forester, Vol 115, No 11 (1989), Pagination: 802-810Abstract
A study was conducted in Picea smithiana (Spruce) and Abies pindrow (Silver fir) forests managed under selection, shelterwood and clearfelled management systems in Kotgarh Forest Division (H.P.) to study the phosphorus behaviour in soils with challge in these systems. Level of soil phosphorus in different sites within the management systems, specific effects of management systems and site conditions. correlation between phosphorus level and soil depth in all conditions of the study, intercorrdation between total and available phospborus were worked out. Soils under selection system were well supplied with phosphorus followed by shelrerwoott and clearfelled systms. In many cases phosphorus level was indfpendent of soil depths as well as total and available forms were also mutually indeptendent of each other. The immobility of the element, biologically mediated uptake, soil pH etc. seemed to have brought about the pattern observed in this study The selection management and good site conditions have maintained better pbosphorus supply. Overall observations clearly indicate low soil phospborus supply in these forests.- Rainfall Interception by Leaf Litter in Central Himalayan Forests
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Indian Forester, Vol 115, No 11 (1989), Pagination: 822-831Abstract
Litter biomass interception by different forest ecosystems in Central Himalaya was assessed during the 1982 monsoon season. Average litter biomass varied from 6.2 to 7.1 t ha-1 and the litter interception renged in between 7.9 to 11.8% of gross rainfall among the sites. The broadleaf species intercepted greater amount of rain water compared to the conifers.- Preliminary Studies on Methodology of Measuring the light Pattern Beneath the Canopy of Pinus roxburghii Plantation in Western Himalayas
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Indian Forester, Vol 114, No 8 (1988), Pagination: 462-469Abstract
The present investigation deals with the preliminary studies on methodology of measuring and quantification of light beneath the canopy of P. roxburghii plantation in Western Himalayas.- Rainfall Interception by Pinus wallichiana Plantation in Temperate Region of Himachal Pradesh, India
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Indian Forester, Vol 113, No 8 (1987), Pagination: 559-566Abstract
The present investigation deals with the rainfall interception by Pinus wallichiana plantation in temperate region of Himachal Pradesh. Of the total rainfall (1327.20 mm), 2.73% (36.27 mm) stemflow; 76.23% (1011.82 mm) throughfall and 21.02% (279.11 mm) interception loss were recorded respectively for the whole study period. The minimum interception loss (10.08%) was observed in the month of August, 1983 which had the maximum (198.00 mm) rainfall. The highest interception (75.00%) was recorded In the month of March, 1984, which had the lowest (4.00 mm) rainfall. Interception loss was decreased with tbe increasing amount of interception.- A Note on the Grass Production under Cedrus deodara Forest in Himachal Pradesh
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Indian Forester, Vol 113, No 9 (1987), Pagination: 648-649Abstract
No abstract- A Note on the Effect of Grazing on Regeneration of Cedrus deodara
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Indian Forester, Vol 111, No 9 (1985), Pagination: 767-768Abstract
no abstract- Effect of Pinus roxburghii Plantations on the Yield and Composition of Grasses in Temperate Region
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Indian Forester, Vol 111, No 10 (1985), Pagination: 787-793Abstract
Study on grass yield and composition under two age group plantations of Pinus roxburghii and open grassland was conducted at Kyarighat, 23 km from Shimla on Shimla-Kalka road during the year 1979, 1980 and 1981 respectively. Abundance, frequency, density and I.V.I. (Improtance Value Index) of each grass species under three sites have been recorded. Maximum yield (5094.36 kg/ha/yr) has been recorded in open grassland followed by Pinus roxburghii plantations of the year 1971 (4067.23 kg /ha/yr) and the year 1953 (3415.50 kg /ha/yr) respectively in decreasing order.- Nutrient Cycle in Eucalyptus tereticornis Smith Plantations
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Indian Forester, Vol 110, No 1 (1984), Pagination: 76-85Abstract
The present investigation deals with the nutrients cycle in five 10 nine years old Eucalyptus tereticornis Smith plantations. Different plants paris were analysed for nitrogen, phosphorus and calcium and results are given of the amount of these elements in the leaves, branches, boles and rools. Total amount of these elemenls on average tree basis is also determined. Amount of nutrient released through literfall is also eslimaled and comparalive account of annual uptake, retention and release of nutrients is prepared.- Afforestation for Avalanche Prevention and Control
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Indian Forester, Vol 110, No 4 (1984), Pagination: 329-336Abstract
Suddn downward movement of snow due to instability In the snow packs-generally known as avalanches, results in great catastrophies in the Himalayan region resulting in huge loss of life property and facilities. Afferestation is considered to be very important for any avalanche protectIon work where avalanches start within the tree zone; trees, anchor the snow and prevent the avalanche from ever happening. The present paper deals with various aspects of afforestation of avalanche prone sites to minimise avalanche occurrence on a short and long term basis. Both coniferous and Broad leaved species considered suitable for afforestation of avalanche prone sites have been listed. Guiding principles for choice of species, crop geometry, spacing required, crop height and density structures of the forest and other details have been discussed. Pre-requisities for improvement of avalanche prone areas have been given and suggestions future work made.- Forest Biomass-Renewable Source of Energy
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Indian Forester, Vol 110, No 9 (1984), Pagination: 958-966Abstract
The present paper deals with the forest biomass as a renewable source of energy. The coal, gas and oil reserves caonot continue indefinitely to meet the major part of the energy needs, therefore an emphasis bas been made on a renewable source of energy i.e. forest biomass which is one of the alternative sources of energy. Some suggestions have also been made to get maximum fuelwood to fulfill the requirement of energy for cooking and heating purposes.- Wastage of Stump Wood in Terms of Energy in Spruce (Picea smithiana) and Silver Fir (Abies pindrow) Forests
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Indian Forester, Vol 110, No 11 (1984), Pagination: 1117-1123Abstract
The present study deals with the wastage of stump wood left over In forests at the time of tree felling for manufacture of wooden boxes for apple transportation, in the form of wood and energy in spruce (Picea smithiana) and silver fir (Abies pindrow) forests of Himachal Pradesh. Two forest divisions viz. Kotgarh and Shimla only were taken into coosideration and total wastage of wood in the form of high stumps was worked out 11910 tonnes during the year 1981 felling (after allowing 15 cm permissible stump height). In terms of energy, total calorific values of 4,94,47 × 105 K cal were recorded which is sufficient to fulfill the requirements of beating and cooking of 747 families having five members each for one year.- Litter Proouction and Release of Nutrients in Coniferous Forests of Himachal Pradesh
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Indian Forester, Vol 110, No 10 (1984), Pagination: 1014-1022Abstract
The present investigation deals with the litter production and nutrient tnrnover in four prominent coniferous species viz. Abies pindrow; Piceo smithiana; Cedrus deodara and Pinus wallichiano of Himachal Pradesh. Annual litter production and the amounts of nutrients released annually through litter fall bave been worked out in all the four species. A comparative account of nutrients released anually through litter fall lu different species is also prepared.- Primary Production of a Deciduous Forest at Varanasi
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Indian Forester, Vol 109, No 5 (1983), Pagination: 255-260Abstract
Primary productivity of six principal tree species constituting 65.1% of tree population and about 80% of the basal area of tree is examined for individual tree, species and density and area basis. The results are extrapolted to the remaining 20 species of the community. The method employed is based on harvesting of selected trees of differnt girth and measuring increment in girth of marked treeS for a period of one year. Mathematical models of increment in girth and corresponding biomass have been developed to estimate mean annual net productivity and the current annual net prductivity. Age of the trees in the natural stand was determined from regression analysis. It is shown that the method employed in forestry for determination of wood volume on the basis of mean aud current prodvctivities, grossly underestimates total productivity of the forest.- Interception Studies in Cedrus deodara Loudon Plantation in Himachal Pradesh
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Indian Forester, Vol 109, No 5 (1983), Pagination: 261-266Abstract
The present investigations deal with the throughfall, stemflow and intercreption loss in Cedius deodara Loudon plantation (94.5% crown density) or about 35 years age at Shillaroo, Kolgarh Forest Division, Distt. Simla (Himachal Pradesh). Of the total rainfall (1850.1 mm) 2.9% (55.3 mm) stemflow, 71.8% (1328.5 mm) throughfall and 25.2% (466.2 mm) interception loss were recorded respectively by for the whole study period. The minimum interception loss (18.7%) was observed in the month of July, 1980 which had the maximum (370.2 mm) rainfall. The highest interception (69.1%) was recorded in the month of February, 1980. which had the lowest (7.0 mm) rainfall. Interception loss was decreased with the increasing amount of precipitation.- Distribution of Organic Matter in Pinus elliottii Plantations
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Indian Forester, Vol 108, No 1 (1982), Pagination: 39-50Abstract
The distribution of organic matter in various tree components for 10, 20, 30 and 40 years old plantations of Pinus elliottii has been discussed. The total biomass ranges from about 169 tonnes (10 years) to 529 tonnes (40 years) per ha with 81 to 85 per cent being contributed by the above-ground parts and 19 to 15 per cent by the ischolar_mains.- Net Primary Productivity and Productive Structure of Eucalyptus tereticornis Smith Plantations Grown in Gangetic Plain
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Indian Forester, Vol 108, No 4 (1982), Pagination: 261-269Abstract
The present investigation deals with the net primary producitivity of the aboveground and underground parts and the productive structure of five different aged planations of Eucalyptus tereticornis grown in Gangetic plain of India under similar climatic and edaphic conditions. The current annual net production is more than the mean annual net production both aboveground and under ground parts. Aboveground cuarrent annual net production yields significant positive correction (r=0.96) with the photosynthetic biomass while the aboveground mean annual production shows high significant correcation (r=0.94) with biomass. underground and aboveground current annual net production are highly correlated having significant correlation (r=O.98) and have direct bearing with dbh (r=0.99). Productive structure shows the pyramidal shape of organic matter distribution in vertical stratification.- Assessment of Weedicides and Nitrogen on Range Grassland Productivity
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Indian Forester, Vol 108, No 5 (1982), Pagination: 329-335Abstract
Field experiments were conducted at Jhansi in 1970-71 for the control of bush and broadleaf weeds in natural grasslands dominated by spear grass (H. contortus) , Picloram (Tordon 10 K pellets), 2, 4-D amine and atrazine with nitrogen application were tried. Tordon 10 K pellets @ 15-30 kg/ha applied as broadcast killed Z. nummularia. M, himalayana, L. camara, C. spinarum. S virosa and Z. xylopyrus in monsson season. The older and semiabsorbent plants of Z. nummularia. C. spinarum. S. virosa, Z. xrlopyrus escaped kill showing Merely defoliation with greater degree at higher dose. B. monosperma, A. leucophloea and F. indica did not respond to Picloram pellets. This herbicide also caused excellent control of existing broadleaf weeds. On the basis of pooled data of two yeara Trial. Tordon 10K pellets at 30 kg/ha appeared slightly more efficient over 15 kg which promoted grass yield by 59%. Top dressing of 50 kg N/ha as calcium-ammonium-nitrate (pellets) significantly ecvalted grass production over no nitrogen and saved application cost of Tordon in combined application.- Populus ciliata-a Promising Tree Species for Soil Conservation in Hilly Areas
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Indian Forester, Vol 108, No 9 (1982), Pagination: 599-604Abstract
One of the reasons for the important place of Populus ciliata in erosion control is tHat P. ciliata is one of the few species which can be successfully established from branch and stem cuttings. P. ciliata ischolar_mains easily in shallow soils where other tree species can not be established. Poplars are being used extensively for erosion control and (or the re-vegetation of eroded hilly areas in China, Japan, U.S.A. and New Zealand. P. ciliata has reasonably fast growth rate and strong spreading ischolar_main system. Plants Grown from cuttings produce and abundance of strong, thick lateral ischolar_mains with little taper.- Comparative Study of Infiltration in Soils under Forest Cover and Agriculture in Temperate Climate
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Indian Forester, Vol 108, No 10 (1982), Pagination: 648-652Abstract
Under both the condition of this study, the forest land has higher initial infiltration rates of 46.8 cm/hr and 5 cm/hr and final infiltration rates of .1 cm/hr in 150 mts and .1 cm/hr in 120 mts from forest areas as compared to .1 cm/hr in 60 mts ond 0 cm/hr in 20 mts from agricultural land after snow removal and snow melt respectively, due to thick layer of humus(10 cm) beneath the forest cover; higher organic matter (7.27%), higher moisture equivalent (29.87%), higher pore space (61.60%) and hIgher water balding capacity (60.26%) forest soils hafe resulted in higher infiltration rates in comparison to the agritultural soils, with no humus, low organic matter content (2.68%), lower moistnre equivalent (29.8%), lesser pore space (56.6%) and lower water holding capacity (46.88%).- Energy Dynamics in Eucalyptus tereticornis Smith Plantations in Western Uttar Pradesh
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Indian Forester, Vol 106, No 9 (1980), Pagination: 649-658Abstract
The most energy rich component is the leaves in all the age groups. On per tree basis, energy storage increases with the increasing age of the plant and the maximum accumulation occurs in the individuals of nine year old stand of E.tereticornis. Total energy content, on per tree basis, of the hole, branches, leaves and ischolar_main also tend to increase with increasing age. In all the age groups, hole retains maximum energy followed by ischolar_main, branches and leaves. On area basis also standing crop of energy increases with advancing in age, being minimum in the year old individuals and maximum in nine year old stand. Leaf litter is more rich in energy content than non-leaf litter. Total amount of energy content in litter fall gradually increases in old stands. The amount of energy returned to to the soil through litter fall is 2.7; 6.2; 6.1; 3.4 and 2.7 per cent respectively, in corresponding age groups (5 to 9 years). Rate of energy fixation of E.tereticornis also increases with the age. E. tereticornis is more efficient than other tree species and its energy conserving efficiency ranges from 0.68 to 1.65 per cent.- Uptake of Phosphorus and its Retention in Different Plant Parts of Eucalyptus tereticornis Smith Seedlings
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Indian Forester, Vol 104, No 9 (1978), Pagination: 627-630Abstract
The present study deals with the dry matter production and phosphorus uptake and its retention in different plant parts of Eucalyptus tereticornis seedlings. From the results obtained it has been concluded that dry matter production as well as phosphorus uptake increases with the age and time. Leaves retained maximum phosphorus followed by stem and ischolar_main in descending series.- Diospyros melanoxylon - its Problems of Cultivation
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Indian Forester, Vol 102, No 6 (1976), Pagination: 326-336Abstract
Diospyros melanoxylon has attained great economic importance due to its leaves being used as wrappers; in the bidi industry. It is yielding large returns to the States like M.P., Maharashtra, Orissa and U.P. Inspite of this, adequate attention has not been paid to the artificial regeneration and its cultivation with the object of increasing the quality and quantity of leaf production. This article attempts to bring at one place the results of the experiments carried out on its various aspects in the country and indicates the fields in which further scope for research exists.- Standardisation of Nursery Technique of Tropical Pines I. Hastening Germination of Pinus caribaea (var. Hondurensis) and Pinus patula Seeds
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Indian Forester, Vol 100, No 7 (1974), Pagination: 407-421Abstract
As prolongation of the time of germination exposes the valuable seeds of Pinus caribaea & P. patula to several risks, trials were undertaken to use a number of cheap and easily available agents for hastening germination. HCI, HCIO4, cowdung, boiling water and combinations of different durations of soaking and concentrations of H2O2, thiourea sol., KNO3 sol. and water were tried. Lower strengths of H2O2 when used for shorter durations proved effective in both of the cases, albeit for P. patula soaking in water for 18 hrs at ambient temperature was best in increasing overall germination. Higher strengths of H2O2 and higher soaking periods proved inhibitive in case of P. patula; 0.25% to 0.5% thiourea sol. and 0.5% to 1% KNO3 sol. inhibited germination of P. caribaea seed whereas cowdung and boiling water brought down the germination % of the both. Hydrochloric acids proved ineffective except in case of P. caribaea, but there too, it was inferior to H2O2 (3 to 6%) when used for 6 to 18 hrs.- Standardisation of Nursery Technique of Tropical Pines II. Germination Medium for Pinus caribaea var. Hondurensis Barr. et. Golf. and P. Patula Schlede & Deppe
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Indian Forester, Vol 100, No 8 (1974), Pagination: 491-496Abstract
no abstract- Standardisation of Nursery Technique of Tropical Pines III. Root Pruning of Pinus patula, Schiede & Deppe Seedlings in Nursery - a Study
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