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古尔班通古特沙漠生物结皮的分布特征
Authors
张元明,陈晋,王雪芹,潘惠霞,辜智慧,潘伯荣
Publication date
1 January 2005
Publisher
Abstract
新疆古尔班通古特沙漠是我国最大的固定和半固定沙漠,其间广泛发育着以地衣植物为主的生物结皮,是除种子植物以外的固定沙面的重要生物因子。研究表明,选择适当的时段,应用遥感技术并结合地面调查来研究沙漠生物结皮的空间分布格局是可行的,遥感制图与地面调查的结果基本一致。该沙漠南部是生物结皮最为丰富的区域,各种类型的生物结皮均有充分发育,呈连续分布,但其分布模式向北、向西和向东变得破碎。通过统计生物结皮像元的面积,得到生物结皮覆盖率超过33%的像元面积占研究区总面积的28.7%。生物结皮的分布对地貌部位有较强的选择性,生物结皮的不同发育阶段种类组成亦有较大的差别
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Institutional Repository of Xinjiang Institute of Ecology and Geography, CAS
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Last time updated on 29/11/2016