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Bargali, S. S.
- Analysis of Woody Vegetation in a High Elevation Oak Forest of Central Himalaya
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Indian Forester, Vol 119, No 9 (1993), Pagination: 722-731Abstract
A quantitative analysis of woody vegetation in 12 stands of four aspects within an elevational range of 2100-2700 m in Central Himalaya was made. Q. floribunda exhibited absolute dominance in all the aspects. R. arboreum; I. dipyrena and Q. semecarpifolia were major associates. The total tree basal area ranged from 3898 to 5733 cm2/100 m2 and diversity and concentration of dominance of total vegetation from 2.180 to 2.649 and 0.014 to 0.155, respectively.
- Effects of Homegarden Size on Floristic Composition and Diversity along an Altitudinal Gradient in Central Himalaya, India
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1 Department of Botany, Dev Singh Bisht Campus, Kumaun University, Nainital 263 001, IN
1 Department of Botany, Dev Singh Bisht Campus, Kumaun University, Nainital 263 001, IN
Source
Current Science, Vol 114, No 12 (2018), Pagination: 2494-2503Abstract
In the present study, data were collected from 36 homegardens at four altitudes, viz. very low (up to 350 m), low (350–700 m), mid (700–1500 m) and high (above 2000 m). Homegardens were categorized into three sizes: large (>0.007 ha), medium (0.004–0.006 ha) and small (<0.003 ha). A total of 111 plant species belonging to 55 families were recorded. Asteraceae, Fabaceae and Cucurbitaceae (seven species each) formed the most diverse family, and 34 families were mono-specific. Species richness was maximum (22) in medium homegarden at mid altitude and minimum (11) in small homegardens at high altitude. Herb density was maximum (84 individuals m2) at very low altitude and diversity was maximum (2.38) at mid altitude in large homegardens. Tree density was maximum (1200 individuals ha–1) at mid altitude and diversity was maximum (2.42) at very low altitude in large homegardens. Total tree basal area was maximum (66.61 m2 ha–1) in small homegardens at very low altitude. Principal component analysis showed that the first component accounted for 54.53% most reliable and high loadings of tree (0.959) and herb density (0.922) with positive effect. The second component (74.93%) showed high factor loading of concentration of dominance for herbs (0.729) with positive effect.Keywords
Altitudinal Gradient, Floristic Composition, Homegarden Size, Species Diversity.Full Text
References
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- Science and Technology Awareness Programme in Uttarakhand
Abstract Views :235 |
PDF Views:72
Authors
Affiliations
1 Department of Forestry, DSB Campus, Kumaun University, Nainital - 263 002, IN
2 Department of Botany, DSB Campus, Kumaun University, Nainital - 263 002, IN
3 Department of Geology, DSB Campus, Kumaun University, Nainital - 263 002, IN
1 Department of Forestry, DSB Campus, Kumaun University, Nainital - 263 002, IN
2 Department of Botany, DSB Campus, Kumaun University, Nainital - 263 002, IN
3 Department of Geology, DSB Campus, Kumaun University, Nainital - 263 002, IN
Source
Current Science, Vol 115, No 4 (2018), Pagination: 610-610Abstract
A three-day workshop on ‘Science and technology sensitization for Uttarakhand’ was held last year, in which 15 Fellows of National Academy of Sciences, India (NASI), 20 scientists and teachers and more than 200 students (M Sc, Ph D and Postdoctoral fellows) participated. A combination of presentations and interactions with participants was used to increase awareness in promoting science and technology. Deliberations were made by distinguished NASI scientists on two main themes, viz. sensitization for the technological empowerment of women and writing scientific papers. Some important topics covered were gender sensitization: changing the mindset; women reproductive health: issues, advances and challenges; technological empowerment of women for social development, scientific paper writing, etc.Full Text
- Microbial Biomass Carbon and Nitrogen in Relation to Cropping Systems in Central Himalaya, India
Abstract Views :176 |
PDF Views:77
Authors
Affiliations
1 Department of Botany, D.S.B. Campus, Kumaun University, Nainital 263 002, IN
1 Department of Botany, D.S.B. Campus, Kumaun University, Nainital 263 002, IN
Source
Current Science, Vol 115, No 9 (2018), Pagination: 1741-1750Abstract
In this study, the impact of cropping systems on physicochemical properties of soil and microbial biomass was evaluated. Soil was collected from four cultivated fields (cropland, crop + single tree species, crop + multiple tree species and homegardens) and one uncultivated (agriculturally discarded) field and analysed. The outcome of the present study indicated that cultivated land squandered about 14% C and 5% N in 8 years of cultivation to the nearby uncultivated land. Soil microbial biomass of cultivated land with multiple tree species (C + mT) was greater than other systems and showed an appreciable seasonal variation. The microbial biomass carbon (Cmic) assorted from 166 to 266 μg g–1 and microbial biomass nitrogen (Nmic) from 11 to 41 μg g–1. Cmic contributed 1.25–1.90% of soil C and Nmic 0.83– 3.77% of soil N. Among cultivated land, maximum Cmic and Nmic were reported in C + mT system which suggested that tree plantation in cultivated land has significant positive effects on microbial biomass and other soil properties by shifting natural soil properties under the similar environmental circumstances.Keywords
Cropping Systems, Microbial Biomass, Microbial Activity, Tree Plantation.Full Text
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