Effect of Altitude on Growth and Forest Structure of Phyllostachys edulis

doi:10.13466/j.cnki.lyzygl.2016.04.018

Abstract

Abstract: Altitude gradient has a great effect on plant growth.In order to understand effect of altitude on Phyllostachys edulis growth and its forest structure,growth situations,including diameter at breast height (DBH),bamboo height and stand density of P.edulis were surveyed and age structure,uniform degree and even degree were analyzed on the two altitude gradients.The results showed that altitude had a certain effect on bamboo growth,but only significantly on bamboo height.Average DBH at low altitude and high altitude was 10.84 and 10.99cm;bamboo average height was 13.53 and 12.35m;stand density was 2 525.00 and 2 829.27 tree/hm².Altitude changed age structure of bamboo forest,and also affected DBH and bamboo height of different ages.Meanwhile altitude had significant impact on uniform degree and even degree,with altitude increase the two degrees both increased.Based on the above,bamboo growth and forest structure were different along altitude gradient,mainly by affected climate,topography and human factors.

Key words: altitude, growth, age structure, uniform degree, even degree

CLC Number:

S718.5
TP795

SU Xiangling, WANG Zhenxi. Effect of Altitude on Growth and Forest Structure of Phyllostachys edulis[J]. FOREST RESOURCES WANAGEMENT, 2016, (4): 96-100.

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