The effects of disturbance on forest structure and diversity at different altitudes in Garhwal Himalaya

生态学杂志

The effects of disturbance on forest structure and diversity at different altitudes in Garhwal Himalaya

Munesh KUMAR¹; Chandra Mohan SHARMA²; Govind Singh RAJWAR³

收稿日期:2008-04-26 修回日期:1900-01-01 出版日期:2009-03-10 发布日期:2009-03-10

The effects of disturbance on forest structure and diversity at different altitudes in Garhwal Himalaya

Munesh KUMAR¹; Chandra Mohan SHARMA²; Govind Singh RAJWAR³

¹Department of Forestry, Henwati Nandan Bahuguna, Garhwal University, Srinagar Garhwal, Uttarakhand India;²Department of Botany, Henwati Nandan Bahuguna, Garhwal University, Srinagar Garhwal, Uttarakhand, India;³Department of Botany, Government Post Graduate College, Rishikesh, Uttarakhand, India

Received:2008-04-26 Revised:1900-01-01 Online:2009-03-10 Published:2009-03-10

摘要/Abstract

关键词: 寡营养细菌, 生态特征, 环境科学

Abstract: The effects of disturbance on forest structure and diversity along an altitudinal gradient in the temperate, sub-tropical, and tropical regions of Garhwal Himalaya were assessed. Each region was further categorized into undisturbed (UD), mildly disturbed (MD), and highly disturbed (HD) sites on the basis of magnitude of disturbance in these forests. On UD sites of temperate, sub-tropical and tropical regions, Quercus leucotrichophora, Anogeissus latifolia and Holoptelea integrifolia were the dominant tree species respectively. The highest values of tree density (1028 ind·hm^-2) and total basal cover at breast height (31.70 m² ·hm^-2) were recorded for UD site of temperate region, whereas maximum species diversity (3.128) and equitability (14.09) values were observed for HD site of tropical region. The structure and composition of the forests were greatly affected by the degree of disturbance.

Key words: Oligotrophic bacteria, Ecological characteristics, Environmental science

Munesh KUMAR; Chandra Mohan SHARMA; Govind Singh RAJWAR . The effects of disturbance on forest structure and diversity at different altitudes in Garhwal Himalaya[J]. 生态学杂志.

Munesh KUMAR¹; Chandra Mohan SHARMA²; Govind Singh RAJWAR³. The effects of disturbance on forest structure and diversity at different altitudes in Garhwal Himalaya[J]. cje.

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The effects of disturbance on forest structure and diversity at different altitudes in Garhwal Himalaya

The effects of disturbance on forest structure and diversity at different altitudes in Garhwal Himalaya

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