[期刊论文]


Distribution and population structure of Pterocarpus santalinus (Red sanders) in hill ranges of Kadapa region, Southern Eastern Ghats, India

作   者:
C. Ankalaiah, M. Sridhar Reddy;

出版年:2022

页     码:44 - 53
出版社:International Academy of Ecology and Environmental Sciences


摘   要:

The present study involves the inventory of the four growth stages, seedling, sapling, juvenile trees and trees of Red sanders in tropical dry deciduous forests in hill ranges of Kadapa region. A total of 20 (1 ha) study sites were laid and in each of the study site, a total of ten (10 by 100 m) belt transacts were randomly laid to enumerate the growth stages. The objective is to derive quantitative information about the population of Red sanders in its natural occurrence area. Results indicated that seedlings are the dominant growth-form across the hill ranges and juvenile trees showed high variation in their distribution. The suffrutex stage, justified by the presence of multiple stems; among seedlings and saplings seems to play a major role in Red sanders regeneration success to overcome the prevailing drought, hot weather conditions and fire. The general population structure in reference to four growth stages of Red sanders was: seedlings GT saplings GT juvenile trees LT Adult trees. Although inverse J shape population structure was recorded for the whole study area, variations in population structure profiles were noticed at one ha level. The occurrence of Red sanders abundance along the elevation revealed that lower elevation sites featured lower tree density and it reached maximum at 400-600 m and decreased later till 600-900 m. Overall Red sanders can be ranked as the dominant trees in these forests, but the progression of sapling stage to established stage like juvenile tree and trees is the bottleneck in the progression of population of Red sanders rather than the seedling germination and survival rates.



关键字:

dry deciduous forests ; population structure ; red sanders ; regeneration


全文
所属期刊
Proceedings of the International Academy of Ecology and Environmental Sciences
ISSN:
来自:International Academy of Ecology and Environmental Sciences