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Vegetation Structure, Composition and Diversity in Relation to the Soil Characteristics of Temperate Mixed Broad-leaved forest along an Altitudinal Gradient in Garhwal Himalaya


Affiliations
1 Department of Botany, HNB Garhwal University, Post Box-51, Srinagar Garhwal-246 174, Uttarakhand, India
 

The focus of the study is to characterize the structure, composition and diversity of Banj Oak (Quercus leucotrichophora) forests at different altitudes and slopes in Mandal-Chopta area of Garhwal Himalaya. Competing co-dominant tree layers comprised of Persea duthiei and D. himalense at the higher altitude (2100m a.s.l.) and steeper slope (45°); D. himalense and Betula alnoides at the middle altitude (1700m a.s.l.) and moderate slope (38°); and Lyonia ovalifolia and Myrica esculenta at lower altitude (1550m a.s.l.) and gentles slope (30°) were observed in these forests. Community diversity was highest (3.140) at the higher altitude (site-1) whereas the concentration of dominance followed the opposite trend of the diversity. Physico-chemical properties of soils have revealed that availability of higher average total nitrogen and moisture contents might have given birth to higher total basal cover values at middle altitude. The tree density was positively correlated with the tree diversity and tree richness (P<0.001). The vegetational parameters A/F ratio, Shanon-wiener index, Species richness, Margalef index and soil parameters especially pH and available phosphate (kg/ha) were significant (P<0.05%) among the forest sites.

Keywords

Banj Oak Community, Himalaya, Species Evenness, Vegetation Analysis
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  • Vegetation Structure, Composition and Diversity in Relation to the Soil Characteristics of Temperate Mixed Broad-leaved forest along an Altitudinal Gradient in Garhwal Himalaya

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Authors

C. M. Sharma
Department of Botany, HNB Garhwal University, Post Box-51, Srinagar Garhwal-246 174, Uttarakhand, India
S. K. Ghildiyal
Department of Botany, HNB Garhwal University, Post Box-51, Srinagar Garhwal-246 174, Uttarakhand, India
Sumeet Gairola
Department of Botany, HNB Garhwal University, Post Box-51, Srinagar Garhwal-246 174, Uttarakhand, India
Sarvesh Suyal
Department of Botany, HNB Garhwal University, Post Box-51, Srinagar Garhwal-246 174, Uttarakhand, India

Abstract


The focus of the study is to characterize the structure, composition and diversity of Banj Oak (Quercus leucotrichophora) forests at different altitudes and slopes in Mandal-Chopta area of Garhwal Himalaya. Competing co-dominant tree layers comprised of Persea duthiei and D. himalense at the higher altitude (2100m a.s.l.) and steeper slope (45°); D. himalense and Betula alnoides at the middle altitude (1700m a.s.l.) and moderate slope (38°); and Lyonia ovalifolia and Myrica esculenta at lower altitude (1550m a.s.l.) and gentles slope (30°) were observed in these forests. Community diversity was highest (3.140) at the higher altitude (site-1) whereas the concentration of dominance followed the opposite trend of the diversity. Physico-chemical properties of soils have revealed that availability of higher average total nitrogen and moisture contents might have given birth to higher total basal cover values at middle altitude. The tree density was positively correlated with the tree diversity and tree richness (P<0.001). The vegetational parameters A/F ratio, Shanon-wiener index, Species richness, Margalef index and soil parameters especially pH and available phosphate (kg/ha) were significant (P<0.05%) among the forest sites.

Keywords


Banj Oak Community, Himalaya, Species Evenness, Vegetation Analysis

References





DOI: https://doi.org/10.17485/ijst%2F2009%2Fv2i7%2F29495