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Population Structure and Protective Value of Temperate Forests in a Part of Central Himalaya

 

作者: HemC. Rikhari,   BhupendraS. Adhikari,  

 

期刊: Journal of Sustainable Forestry  (Taylor Available online 1998)
卷期: Volume 7, issue 3-4  

页码: 5-21

 

ISSN:1054-9811

 

年代: 1998

 

DOI:10.1300/J091v07n03_02

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

This study pertains to the density-diameter (d-d) curves, diameter class distribution of dominant species and protective value of temperate forests between 2000 and 3300 m amsl in Pinder catchment of the Central Himalaya. The identified forests were mixed deciduous-evergreen, alder(Alnus nepalensis), mixed evergreen-deciduous, maple(Acer cappadocium), burans(Rhododendron arboreum), silver-fir(Abies pindrow), kharsu oak(Quercussemecarpifolia)and birch(Betula utilis).The d-d curve was inverse curvilinear for all species in the entire study area. The curve assumed an inverse curvilinear slope for the stands of smaller mean diameter, linear for the stands of intermediate mean diameter and bell shaped for the stands of larger mean diameter. The curves for burans, kharsu oak and alder, mixed and silver-fir, and birch forests were slightly convex, bell shaped, curvilinear, straight line and linear, respectively. Two light demanding species,Q. semecarpifoliaandAesculus indicahave been experiencing regeneration problem, whereas the other two light demanding species,A. nepaiensisandB. utilisexhibited moderate regeneration. Shade tolerantA. pindrow, A. cappado-ciumandR. arboreumexhibited satisfactory regeneration, but conversion of seedlings into trees was not satisfactory forA. pindrow.The relative protective value of 5 different forests was in the order: silver fir > kharsu oak > mixed deciduous-evergreen > mixed evergreen-deciduous > birch.

 

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