Refine your search
Collections
Co-Authors
- Sanjay Naithani
- R. S. Katiyar
- Balak Ram
- B. C. Pant
- Sachin Gupta
- S. P. Badoni
- C. M. Sharma
- Anil Negi
- Sushma Mahajan
- S. V. Singh
- R. V. Rao
- Pallavi Gupta
- V. K. Jain
- Kiran Bargali
- R. P. Singh
- N. L. Patel
- A. K. Rai
- R. C. Jain
- Krishan Lal
- S. S. Bhandari
- K. R. Khanna
- C. H. Misra
- A. K. Raj
- S. N. Dhoundiyal
- Y. K. Sharma
- Purushottam Lal
- C. Muralidhar Rao
- R. S. Sharma
- Jai Singh
- M. E. Mittal
- M. C. Mittal
- K. S. Bhandari
- Anita Srivastava
- D. D. S. Negi
- R. C. Ghosh
- S. R. D. Guha
- Man Mohan Singh
- C. M. Mathur
- P. C. Pant
- G. M. Mathur
- Sarnam Singh Suresh Kumar
- Yousif A. Hussin
Journals
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Singh, S. P.
- Bamboo as a Raw Material for Pulp and Paper
Abstract Views :438 |
PDF Views:1
Authors
Source
Indian Forester, Vol 134, No 9 (2008), Pagination: 1157-1164Abstract
Bamboo contributes as a source of long fiber in the pulp and paper furnish. The physical and chemical characteristic of bamboo as a raw material varied form species to species. The raw material having low lignin content reduces chemical consumption and pollution load during pulping and bleaching whereas high holocellulose content results in more productivity. Anatomical characters like fibre morphology is one of the important character which plays very important role on the structure and properties of the end products like paper and textile. The ratio of length and wall thickness affect the flexibility and collapsibility of fiber, which inturn reduces the energy requirement during beating. There is need to fill up the gap between demand and supply by raising quality bamboo.Keywords
Bamboo, Raw Material, Paper & Pulp Industry
- Selection Parameters in Relation to Plant Types in Rosa damascena (Mill)
Abstract Views :265 |
PDF Views:1
Authors
Source
Indian Forester, Vol 133, No 5 (2007), Pagination: 713-717Abstract
No abstract- Working and Finishing Qualities of some Andaman Timbers
Abstract Views :301 |
PDF Views:0
Authors
Source
Indian Forester, Vol 129, No 4 (2003), Pagination: 479-488Abstract
Briefly mentioning the work done for evaluating the working and polishing qualities of Andaman timbers, the results obtained on eight Andaman timbers namely Dipterocarpus alatus, Lagerstroemia hypoleuca, Myristica prainii, Pterocarpus dalbergiodes, Terminalia bialata, Terminalia manii, Terminalia procera and Terminalia nudiflora are presented in this paper along with their other available properties and uses. The results of this study indicate that most of the species can be worked to fine, to very fine surface and high gloss can also be obtained after application of artificial films of polish.- WORKING QUALITIES OF SOME INDIAN TIMBERS - PART - X
Abstract Views :301 |
PDF Views:0
Authors
Source
Indian Forester, Vol 128, No 9 (2002), Pagination: 1021-1032Abstract
This paper is in continuation of earlier papers on systematic evaluation on working qualities of Indian timbers in which results of working qualities of seven more species namely Abies pindrow, Acacia tortilis, Leucaena leucocephala, Piciea smithiana, Paulownia species, Salix alba and Ulmus wallichiana have been reported after testing them under six major wood working operations - Planing, Sanding, Turning, Shaping, Boring and Mortizing. The working quality index based on quality of worked surface and ease of working for each species are reported along with the results of Tectona grandis for comparison. These results indicate that overall performance of Paulownia species and Ulmus wallichiana is better than Teak where as Acacia tortilis, Leucaena leucocephala and Piciea smithiana are comparable to Teak. These are easy to very easy to work with hand and machine tools.- Utilisation of Poplar for Wood Composites
Abstract Views :241 |
PDF Views:0
Authors
Source
Indian Forester, Vol 127, No 2 (2001), Pagination: 154-159Abstract
To meet the growing shortages of industrial wood, large scale plantations of poplars have been raised in the country. Poplar wood possesses high timber and fibre value for industrial applications. Several studies on different utilization aspects of Poplar, including its physical and mechanical properties, wood working and carving quality, and its suitability for plywood, hardboard, particle board and laminated wood etc., have been undertaken. The wood is now extensively used in the manufacture of plywood, match boxes and packing cases etc. With increasing availability of Poplar wood in coming years, it is necessary to study in detail clone-wise properties and utilization of Poplar species for diversifying the use of Poplar wood. This paper describes the recent research and development work carried out on Poplar wood utilization for reconstituted wood products at this Institute.- Evaluation of Eucalyptus Hybrid Clones with Respect to Pulping and Paper Making Properties
Abstract Views :187 |
PDF Views:0
Authors
Source
Indian Forester, Vol 126, No 3 (2000), Pagination: 274-278Abstract
Three clones of Eucalyptus hybrid were subjected to kraft pulping experiments at 16% total active alkali charge. Four trees of each clone were studied. Pulp yield, screened rejects, kappa number and physical strength properties in terms of tensile index, burst index and tear index were determined after beating the unbleached pulps in PFI mill at constant revolution of 8000. All the trees from these clones possessed adequate pulp yield and strength properties in the following order: Clone B(48.00%) > Clone C(43.71%) > Clone A(42.92%).- Studies on Carving Quality of some Indian Timbers
Abstract Views :291 |
PDF Views:0
Authors
Source
Indian Forester, Vol 132, No 8 (2006), Pagination: 1019-1023Abstract
Keeping in view the need for substitutes of conventional timbers like sissoo, teak, rosewood, sandalwood and walnut, the carving behaviour of eleven Indian timbers were studied systematically under four main carving operations, viz., chiseling, scooping, punching and fret sawing. On the basis of ease of working, occurrence of defects, cleanness of cutting edges, quality of carved surface etc., a quantitative method for comparing the overall carving behaviour with teak is developed and suggested. The results presented indicate that Acer oblongum (Maple), Michelia champaca (Champ), Himalayan species, Cupressus torulosa (Cypress) behave better than teak while Terminalia procera (Badam), Adina cardifolia (Haldu) and Olea glandulifera (Indian olive) behave comparable to teak.- Seed Characteristics and Germination Behaviour of some Early and Late Successional Tree Species on a Nutrient Gradient
Abstract Views :186 |
PDF Views:0
Authors
Source
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.- Dynamics of Growth in Some Agroforestry Tree Species Under South Saurashtra Region of Gujarat
Abstract Views :218 |
PDF Views:0
Authors
Source
Indian Forester, Vol 122, No 7 (1996), Pagination: 570-576Abstract
Among the ten tree species tried in field conditions of South Saurashtra region of Gujarat at College of Agriculture, Gujarat Agricultural University, Junagadh, the survival percentage was higher in all the tree species except Eucalyptus. Siris and Persian lilac had higher plant height while the stem girth was higher in Cordia and Persian lilac. The number of leaves retained per plant was highest in Manila tamarind followed by Persian lilac. The total leaf area per plant was highest in Persian lilac followed by Siris and Neem.- Aspects of Pulping and Papermaking from Bamboos
Abstract Views :197 |
PDF Views:0
Authors
Source
Indian Forester, Vol 114, No 10 (1988), Pagination: 701-710Abstract
This paper gives briefy an account of the chemical and morphological characteristics of major species of bamboo used for papermaking The researches carried out on (i) pulping and bleaching (II) effect of morphological characteristics on sheet properties (iii) beating properties, and (iv) decay on storage and its effect on pulp properties have been reviewed and discussed. A brief description about industrial pulping and papermaking is given.- Yield of Heartwood in Acacia catechu (Khair) for Use in Katha Manufacture
Abstract Views :294 |
PDF Views:0
Authors
Source
Indian Forester, Vol 113, No 6 (1987), Pagination: 404-408Abstract
Tbe heartwood of Acacia catechu (khair) tree is used in manufacture of katha. The period of harvest to meet the needs of industry will thus depend upon the time of maximum heartwood production. Tree model to simulate growth and yield of khair has been developed to predict yields obtainable under different site conditions. It also provides information to initial spacing for planting to obtain the most from the site.- Effect of Locality of Growth and Fibre Characteristics of Leucaena leucocephala on Kraft Pulp
Abstract Views :210 |
PDF Views:149
Authors
Source
Indian Forester, Vol 112, No 12 (1986), Pagination: 1104-1112Abstract
The paper gives a comparative account of the evaluatinn of Su-babul (L leucocpphala) ,grown in Pune. At Siliguri and Rajabhatkhawa, for bleached grade kraft pulp. The data on pulping and bleaching properties indicate that the wood from all the three sources can be pulped to obtain bleachable grade pulp (Kappa No 26 ± t) using 17% active alkali as Na2O. The bleached pilip yield was about 45% in an the three cases. To achieve a pulp of 7% brightness CEH sequence with total chlorine application of 9.7% was adequate for samples for Pune and Rajabhatkhawa; whereas in case of Siliguri sample another stage of hypochlorite (2% av. Chlorine) was needed. The strength properties data indicate that wood of all the three localities is suitable for producing bleached kraft pulps for writing and printing papers. It was found that fibre characteristics (The Runkel ratio and shape factor) had marked influence on strenglh properties. The tensile index, tear index and burst index decreased with increase in the hunkel ratio and shape factor.- Studies on Genetic Variability for some Economic Traits in Solanum viarum Dunal
Abstract Views :210 |
PDF Views:0
Authors
Source
Indian Forester, Vol 111, No 6 (1985), Pagination: 432-440Abstract
A study of base population of Solanum viarum Dunal and fifteen selections made from it has been undertaken. A wide range of variability was observed for days to flower, number of berries and yield/plant in the base population. Selections were made for earliness and yield and coefficient of variability, heritablity and genetic advance has been studied in them. The highest genotypic variance was observed for yield/plant and lowest for solasodine content. Heritability was high for all the characters except for solasodine content. Genetic advance was high for yield/plant followed by number of berries/plant and moderate for plant spread, solasodine content and plant height. High heritability coupled with moderate to high genetic advance and genotype coefficient of variability was observed for yield/plant, number of berries/plant, plant spread and plant height.- Evaluation of Hardwoods of Andaman and Nicobar Islands for Kraft Pulps for Wrapping, Writing and Printing Papers
Abstract Views :178 |
PDF Views:0
Authors
Source
Indian Forester, Vol 111, No 6 (1985), Pagination: 453-466Abstract
The present paper gives a comparative account of basic density and kraft pulping characteristics of fourteen species of Barataung area and eighteen species of Middle Andman area of Andaman&Nicobar Islands. The properties of kraft pulps of individual species have also been evaluated. It has been found that the basic density varied widely with species in both areas. In Barstaung area the variation was from 0.302 to 0.847 g/cm2, whereas for Middle Andaman gives area it was in between 0.261 to 0.728 g/cm2. Laboratory experiments on kraft pulping of individual species have shown that most of them gave screened pulp in the range of 40-45% yield, the only exception being Mitraeyna retundifolia of Barataung area and Knema sp of Middle Andaman area which gave pulp yield below 40%. The physical strength properties of unbleached kraft pulps of all the species were found to be adequate for wrapping grade paper. Pilot plant trials have shown that the mixed species of both areas could be pulped wlth 18% active alkali (as Na2O) to produce unbleached kraft pulps of about 45% of yield. The paper made from these unbleached kraft pulps on pilot paper machine was of satisfactory strength for use as wrapping paper. It was further established that these pulps could be bleached to 75 brightness by conventional C/E/H/H/ sequence to produce writing and printing paper.- A Study on the Effect of Different Spacing Treatments on Yield from Eucalyptus tereticornis Plantations
Abstract Views :227 |
PDF Views:0
Authors
Source
Indian Forester, Vol 111, No 9 (1985), Pagination: 667-677Abstract
The effect of different spacing treatments on yield from Eucalyptus plantations has been studied. It is observed that the spacing 1.0 m × 1.0 m gives highest yield whereas spacing 2.5 m × 2.5 m gives the lowest. The Spacing treatments do not seem to have any effect on survival of plants.- Total Tree Volume Table for Pterocarpus dalbergioides (Andaman Padauk)
Abstract Views :224 |
PDF Views:0
Authors
Source
Indian Forester, Vol 111, No 10 (1985), Pagination: 784-786Abstract
Provisional volume tables for Pterocarpus dalbergioides (Andaman padauk) have been prepared. Use has been made of 'Cosh function' as independent variable to improve volume (V) Prediction by V =a+b D2H regression over entire data range, where D is diameter at breast height and H is height of a tree.- Provisional Growth Estimate of Pterocarpus dalbergioides (Andaman Padauk)
Abstract Views :189 |
PDF Views:0
Authors
Source
Indian Forester, Vol 110, No 4 (1984), Pagination: 396-400Abstract
Information on growth of Pterocarpus dalbergioldes (Andaman padauk) is scanty and no attempt was to estimate period of harvest for this species. Though the growth data is limited, yet attempt is made to study its growth pattern and project the same in the form of yield table.- Effects of Spacing and Thinnings in Casuarina Stands
Abstract Views :234 |
PDF Views:0
Authors
Source
Indian Forester, Vol 109, No 1 (1983), Pagination: 12-16Abstract
no abstract- Growth of Poplar Plantations in Tarai Region of Uttar Pradesh
Abstract Views :209 |
PDF Views:0
Authors
Source
Indian Forester, Vol 109, No 10 (1983), Pagination: 755-761Abstract
no abstract- Provisional Growth Estimate of Lagerstroemia hypoleuca (Pyinma)
Abstract Views :185 |
PDF Views:0
Authors
Source
Indian Forester, Vol 109, No 3 (1983), Pagination: 137-139Abstract
Information on growth of Lagerstroemia hypoleuca (Pyinma) is scanty and no attempt was made to estimate period of harvest for this species. Though the growth data is limited, yet attempt is made to study its growth pattern and project the same in the form of yield table.- Permanent Sample Plots in Stands of Mixed Species
Abstract Views :172 |
PDF Views:0
Authors
Source
Indian Forester, Vol 109, No 7 (1983), Pagination: 449-457Abstract
The utility of permanent sample plots in assessment of stand growth highlighted. This method is also followed in stands of mixed species. Measurement of plots in mixed species and analysis of data collected present serious problems. Therefore, quite often indication of approximate growth is visualised from basic data. Basic sample plot data from forests of dry deciduous, semi-evergreen and Moist mixed deciduous forests are quoted. Further attempt has also been made to obtain an estimate of growth of mixed plantations by application of regressions.- Provisional Volume Tables for Two Exotic Pines (species Pinus caribaea and Pinus patula)
Abstract Views :264 |
PDF Views:0
Authors
Source
Indian Forester, Vol 108, No 1 (1982), Pagination: 75-85Abstract
Provisional volume tables for Pinus caribaea and Pinus patula have been prepared. Use has been made of 'Cosh function' as independent variable to improve volume (V) prediction by V=a+b D2H regression over entire data range, where D Is diameter at breast height and H Is height of a tree.- Growth Studies of Acacia NilOtica
Abstract Views :211 |
PDF Views:0
Authors
Source
Indian Forester, Vol 108, No 4 (1982), Pagination: 283-288Abstract
Tree model to simulate growth and yield of Bubul bas been developed. With its help, it is feasible to predict yields obtainable under different site conditions and different prediction intensify of low (ordinary) thinnings. It thus can provide information to decide initial spacing for planting so as to obtain maximum volume output from the site.- Growth Performance of Cryptomeria japonica in Hills of West Bengal
Abstract Views :198 |
PDF Views:1
Authors
Source
Indian Forester, Vol 108, No 5 (1982), Pagination: 336-341Abstract
The growth of Cryptomeria japonica has been quoted in the past with reference to specific localities but no attempt was made to estimate its Growth in different productive sites. The paper presents growth pattern of Cryptomeria under varying conditions.- Some Thoughts About Planning Coastal Shelterbelts
Abstract Views :219 |
PDF Views:0
Authors
Source
Indian Forester, Vol 108, No 6 (1982), Pagination: 402-407Abstract
India has a long history of cyclonic and flood damage. Occurrence of severe cyclones is be coming more frequent. It is known that these recurrent problems should be dealt at their ischolar_main and not by merely treating after-effects and consequences why then there is failure of Govt. In planning to meet periodically recurrent devastating cyclonic force. Tbe paper analyses this situation and brings out the need for giving due weightage to social environment in project formulation.- A Preliminary Note on Alkaline - Anthraquinone Pulping of Eucalyptus grandis
Abstract Views :241 |
PDF Views:0
Authors
Source
Indian Forester, Vol 108, No 6 (1982), Pagination: 455-459Abstract
Soda, Soda-anthraquinone (AQ) (both at 16% active alkali, approx. 1115, H factor) and Kraft (l4% active alkali, approx. 810, H factor, 25% sulphidity) pulpings were carried out to compare the yield, degree of delignification and physical strength properties of unbleached pulps, It was observed that soda. AQ pulp was slightly better than the controlled soda pulp but was inferior to the kraft pulp in respect to its quality and yield.- Crown Development of Cedrus deodara
Abstract Views :243 |
PDF Views:0
Authors
Source
Indian Forester, Vol 108, No 7 (1982), Pagination: 490-494Abstract
Crown development of trees in stands is a facinating study. Though its application in growth and yield estimation may not be simple but it may serve useful purpose in some specific management objectives like establishment of seed production areas and management of seed orchards, guide for thinnings etc. With the help regression developed for Cedrus deodara (deodar) tabular statements have been generated to predict crown width, number of trees/ha for normal density stands and minimum number of trees/ha for full canopy coverage.- Errors resulting from class grouping of Diameters
Abstract Views :186 |
PDF Views:0
Authors
Source
Indian Forester, Vol 108, No 8 (1982), Pagination: 567-571Abstract
no abstract- Effect of Different Spacing Treatments on Yield from Anthocephalus chinensis Plantations
Abstract Views :223 |
PDF Views:0
Authors
Source
Indian Forester, Vol 108, No 12 (1982), Pagination: 734-740Abstract
The effect of different spacing treatments ou yield from Kadam plantations has been studied. Though the yield obtained from application of different spacings is not significantly different, it is observed that c1osest spacing of 1.83 m × 1.83 m gives highest yield and the widest spacing of 3.66 m × 3.66 m the lowest. The spacings appear to have direct effect on survival of plants. The survival percentage is maximum for widest spacing and minimum for closest spacings.- Provisional, Growth Estimates of some Species of Mixed Tropical Forests
Abstract Views :180 |
PDF Views:0
Authors
Source
Indian Forester, Vol 108, No 3 (1982), Pagination: 230-236Abstract
no abstract- Growth Performance of Syzygium cumini
Abstract Views :172 |
PDF Views:0
Authors
Source
Indian Forester, Vol 108, No 11 (1982), Pagination: 703-707Abstract
No attempt was made in the past to estimate growth of Syzygium cumini (jamun) In different probuctive sites. The paper presents growth pattern of jamun under varying conditions.- Standing Crop Volume Computation in Permanent Sample Plots
Abstract Views :192 |
PDF Views:0
Authors
Source
Indian Forester, Vol 107, No 2 (1981), Pagination: 104-106Abstract
Estimation of permanent sample plot volume with accuracy depends upon correct selection of sample trees. Unbiased selection of sample trees by point sample and systematic sample method have been discussed and it is found systematic sample method in case of Pinus patula plantation 11 year old yields estimate within an error of 2%.- Tree Model for Kadam (Anthocephalus chinensis) Plantations of West Bengal
Abstract Views :199 |
PDF Views:0
Authors
Source
Indian Forester, Vol 107, No 3 (1981), Pagination: 158-165Abstract
Tree model to stimulate growth and yield of Kadam has been developed. With its help, it is feasible to predict yields obtainable under different site conditions and different predefined intensity of low (ordinary) thinnings. It thus can provide information to decide initial spacing for planting so as to obtain maximum volume output from the site.- Trends in Rotation
Abstract Views :204 |
PDF Views:0
Authors
Source
Indian Forester, Vol 107, No 6 (1981), Pagination: 336-347Abstract
Unlike other resource management Sciences, the management of forests to yield maximum benefits is complicated. It is on account of heterogenity in size class distributions age structure, size of the population and linkage of meaning of maximum harvest with management objectives. With the harvesting policy the concept and types of rotation thus came into existance. During early years when scientific manament was evolved, the removal was cautious and restricted to trees of higher dimensions. Rotation was in consequential and so was fixed high. In due course of time uniform system based on natural regeneration was adopted to convert a forest into a series of age blocks. As technique of management became more and more refined the rotation fell in many areas thus allowing harvest of larger quantity of material. This was followed by complete artificial planting in suitable area and led to simple system of forest management cutting down further life span 10 of a crop in which trees of merchantable dimension could be produced, Mean while production had to be stepped up not only to compensate for the land lost to competing Uses but also to satisfy the increasing demand of rising population, Side by side appropriate technologies developed for various use wood even of small sizes.So attention was paid to identify various uses and demands with the view to relate these to the capacity of forests to improve the present level of production. This led to the introduction of exotics and intensive management of indigenous species which furtber resulted in reduction in rotation. The paper also summarises the information about totation of some prominent species and ther present trends.- Second Tree Diameter and Tree Volume Estimation
Abstract Views :188 |
PDF Views:0
Authors
Source
Indian Forester, Vol 107, No 7 (1981), Pagination: 412-415Abstract
If precision in estimation total or partial stem volume is desired, measurement of second diameter at a certain fixed height, is necessary. Measurement of second diameter is not difficult, it can be easily done with the help of a horizontal scale mounted on a rod.- Total Tree Volume Table for Tectona grandis (Teak)
Abstract Views :223 |
PDF Views:0
Authors
Source
Indian Forester, Vol 107, No 10 (1981), Pagination: 621-623Abstract
no abstract- Fuelwood as Energy Source
Abstract Views :202 |
PDF Views:0
Authors
Source
Indian Forester, Vol 107, No 12 (1981), Pagination: 785-794Abstract
Fuelwood is most important energy source meeting about 60% of its requirement, but there is hardly any exclusive plantation programme to raise fuelwood output. Presently species for which no are has been developed, defective wood and branchwood volume contribute towards fuelwood yield from natural forests. To increase yield fast growing fuelwood species can play a vital role. The approach to combat energy crisis is described. The maximum yields obtainable from differeat species under varied condition of growth are given and also a rating index to choose suitable species has been developed.- Growth and Yield of (Shorea robusta) Sal in Taungya Plantations of Gorakhpur Forest Division
Abstract Views :192 |
PDF Views:0
Authors
Source
Indian Forester, Vol 106, No 7 (1980), Pagination: 474-481Abstract
An attempt is made to study growth and yield of Shorea robusta of taungys plantations in Gorkhpur Forest Division of Uttar Pradesh. Stocking influences crop diameter but total yield per unit areas does not vary substantially. The best level of stocking, for maximum stem volume down to 5cm diameter limit, appears to be about 1000 trees/ha at 40 years of age. However, where large sized timber is required forests can be worked at a suitable lower level of stocking without much sacrifice in total yield.- Tree Increment Plots (Species Ougeinia oojeinensis)
Abstract Views :277 |
PDF Views:0
Authors
Source
Indian Forester, Vol 106, No 8 (1980), Pagination: 555-557Abstract
Attempt is made to analyse tree increment plot data of Ougeinia Oojeinensis by Dwlight's Co-frequency Method. A regression is developed to simulate second inventory from first inventory data. The computer programme 'TIP' developed by the author was used in the analysis.- Site Index Curves (Species- Terminalia alata Sym. T. Tomentosa)
Abstract Views :213 |
PDF Views:0
Authors
Source
Indian Forester, Vol 106, No 9 (1980), Pagination: 609-613Abstract
Site index table for Terminalia alata has been formulated. To develope this table, a number of growth models were tested to choose the best out of them.- Volume Table for Trewia nudiflora (Gutel) -application of Cosh Function and Dummy Variable in Volume Estimation
Abstract Views :286 |
PDF Views:0
Authors
Source
Indian Forester, Vol 106, No 10 (1980), Pagination: 696-702Abstract
The paper high-light the use of "Cosh function" and "Dummy variables" in tree volume studies. The species selected to explain the use is Trewia nudiflora, which is nature tends to become branchy.- An Approach to the Preparation of Variable Density Yield Tables
Abstract Views :189 |
PDF Views:0
Authors
Source
Indian Forester, Vol 106, No 2 (1979), Pagination: 106-120Abstract
TradiTIonal yield tables which are prepared for fully stocked stands are not of much help in introducing manipulations precisely in management of forests to achive maximum yield of desired product in shortest period of harvest. In effect what we need is the variable density yield table. The present stuay is towards this end. It is completely a mathematical approach, in which various regressions have been developed to account for the maximum possible variation present in the crop The species selected for the study is Eucalyptus grandis (Hill) Maideen. In the analysis of data two separate growth functions(namely height growth aod basal area growth) are developed to explain their behaviour and with the assistance of third i.e. volume estimate) they are then linked together to formulate desired tables. The study has indicated following physical rotation (age of culmination of M.A.I.) for volume overbark for different productivity sites.- Locality and Growth of Mysore Gum
Abstract Views :171 |
PDF Views:0
Authors
Source
Indian Forester, Vol 105, No 3 (1979), Pagination: 223-229Abstract
Mysore gum plantations have wide range of distribution. But on account of change in soil and climate, their growth is not same all Over Use has been made of dummy variables in multiple regression to group entire distribution into few similar regions of growth and yield. Estimates based on regions so delineated would be more accurate and explain variation in population from which they are drawn better than any haphazard attempt.- Stand Volume Tables for Uttar Pradesh Chirpine (Pinus roxburghii)
Abstract Views :207 |
PDF Views:0
Authors
Source
Indian Forester, Vol 105, No 9 (1979), Pagination: 644-657Abstract
Point sampling technique has made easy, the assessment of crop parameters. Stand Volume Tables for Uttar Pradesh chirpine has been compiled. It gives estimates of (i)total stem volume and (ii)stand and stem timber for known crop diameter, crop basal area and top height.- Growth Potential and Thinning Yield Studies of Uttar Pradesh Chir Pine
Abstract Views :252 |
PDF Views:236
Authors
Source
Indian Forester, Vol 105, No 10 (1979), Pagination: 706-715Abstract
The paper presents a mathematical approach to the preparation of yield tables for different density stands which are subjected to thinnings at various stages of development. Chirpine data of Uttar Pradesh have been utilised to develop various relationships. It is felt that stocking of chirpine is low in natural forests and production per unit area could be much enhanced by judicious implementation of thinnings.Full Text
- High Brightness Pulps as Filter for the Production of Urea formaldehyde & Melamine formaldehyde Moulding Powder
Abstract Views :248 |
PDF Views:261
Authors
Source
Indian Forester, Vol 104, No 1 (1978), Pagination: 51-58Abstract
High brightness pulps suitable for use as Filler for Urea formaldehyde and Melamine formaldehyde moulding powder have been prepared from unbleached and bleacbed bamboo sulphates pulps of Central Pulp Mill, Fort Sondgarh by suitable bleaching process and from Eucalyptus hybrid wood by prehydrolysis sulphate process followed by multi stage bleaching process. These pulps were evaluated by Nuchem Plastics Ltd., Faridabad and fouod suitable.Full Text
- Rotation as Influenced by Stand Stocking a Study of Casuarina equisetifolia
Abstract Views :189 |
PDF Views:0
Authors
Source
Indian Forester, Vol 104, No 7 (1978), Pagination: 491-500Abstract
The key factors which govern rotation for maximum volume production are site productivity' specification of products desired and stand stocking. Forest productivity is a function of site' products desired to be produced or can be sold are determined by demand or markets and so it is stand stocking only which can be manipulated to obtain maximum growth of desired product in shortest time. If stocking is very low' despite full growth by trees' production will be low. With high stocking' there is a stage beyond which growth does not increase with stocking and with further increase of stocking growth may decline because of stagnation. Now the question arises as to what is the level of optimum stocking? In the present paper attempt is made to identify this level by use of regression technique.- Stem Volume Preodiction Models for Variable Diameter Limits
Abstract Views :214 |
PDF Views:0
Authors
Source
Indian Forester, Vol 103, No 1 (1977), Pagination: 23-28Abstract
Attempt is 1Ilade to find out relationship between stem standard timber volume with total stem, merchantable and small wood volumes. Advantage ha. been taken of the correlation found between h/h1 and 1/d.fstf (where h1 is the standard timber bole length, fst the standard timber from factor, d the diameter at breast height and h the tree height) in finding out suitable prediction models. In the era of rapid industrialisation and changing technology wherein yard stick for specific type of raw material change day to day, it is felt that suggested prediction models will be of much use.- Stem Standard Timber form Factor of some Indian Conifers
Abstract Views :187 |
PDF Views:0
Authors
Source
Indian Forester, Vol 102, No 11 (1976), Pagination: 747-760Abstract
The definition of stem standard timber form factor fst is analysed. Presuming a tree to be conical, it is studied as to how much error in its estimation is introduced in calculating tree volume by Huber's formula and measarement by sections. fst diameter curves for chir, kail, deodar and fir are drawn and comparative study is made. It is found that within a narrow range of diameter at breast height fst height curve is linear. Taking advantage of this observation, the procedure of Hummel's "Volume-Basal Area Line" is applied in analysis of data for compiling fst table for deodar with the difference that in the Present case, it is "fst -Height Line" drawn for each diameter class. The values of fst for predominant trees are compared with that of co-dominant and other trees of under-storey. It is revealed that suppressed trees on the whole show better form.- Cultivation of Rauwolfia serpentina in Kota Forest Division (Rajasthan)
Abstract Views :230 |
PDF Views:0
Authors
Source
Indian Forester, Vol 91, No 4 (1965), Pagination: 239-242Abstract
Results of studies on ischolar_main and seed production and alkaloidal content of the ischolar_mains in the case of about 1,2 and 3 year old plants of Rauwolfia serpentina (Linn.) Benth. Ex Kurz being raispd under irrigated conditions at Kota are given. Average weight of air dried ischolar_mains per plant from 1, 2 and 3 year old plants is 22 g, 49 g and 162 g respectively. The total alkaloidal content of 1, 2 and 3 year old ischolar_mains was found to be 1.24, 1.31 and 1.50 per cent respectively and is well above the I.P. and B.P.C. standard (not less than 0.8 per cent). The seed production per plant comes to be 2.1, 3.6 and 8.0 g in case of 1, 2 and 3 year old plants respectively. The results of yield of ischolar_mains and their alkaloidal content from these plantations at Kota compare favourably with those obtained from plantations raised at Forest Research Institute, Dehra Dun. Possibility of extending the plantations of Rauwolfia serpentina in suitable localities in this state is indicated. Considering the increase in the yield of ischolar_mains with the age of plants, harvesting of ischolar_mains from 2 to 3 year old plants is suggested.- Chemical Pulps for Writing and Printing Papers from Guatemala grass (Tripsacum luxum Nash)
Abstract Views :301 |
PDF Views:0
Authors
Source
Indian Forester, Vol 92, No 11 (1966), Pagination: 684-686Abstract
Laboratory experiments on the production of chemical pulps for writing and printing. Papers by Soda process from Guatemala grass (Tripsacum luxum Nash) are described. The average fibre length was 1.16 mm and the average fibre diameter was 0.010 mm. Easy bleaching pulps with satisfactory strength properties for production of writing and printing papers could be prepared under suitable conditions from this grass.- Chemical Pulps Por Wrapping, and Writing Printing Papers and Semi-chemical Pulps for Strawboard Prom Stobilanthus Species
Abstract Views :218 |
PDF Views:0
Authors
Source
Indian Forester, Vol 95, No 6 (1969), Pagination: 407-412Abstract
no abstract- Utilisation of Cupressus cashmeriana for Production of Kraft Paper, Writing and Printing Paper and Newsprint
Abstract Views :197 |
PDF Views:0
Authors
Source
Indian Forester, Vol 95, No 9 (1969), Pagination: 640-649Abstract
Proximate chemical analysis and fibre dimension of Cupressus cashmeriana have been recorded. Sulphate pulps, suitable for kraft paper have been prepared on a laboratory scale. Laboratory as well as pilot plant experiments for the production of writing and printing paper as well as newsprint grade paper have shown that these grades of paper can also be manufactured from Cupressus cashmeriana.- Under-storey Vegetation Carbon Characterization of Shorea robusta (SAL) forests Using Ground Data and Geospatial Techniques
Abstract Views :272 |
PDF Views:18