提孜那甫河流域冰-草生态交错带MODZS动态特征

发布时间：2018-03-30 13:26

  本文选题：提孜那甫河流域　切入点：冰-草生态交错带　出处：《山地学报》2016年06期

【摘要】：冰-草生态交错带是陆地生态交错带的重要组成部分,在全球气候变暖背景下,研究其环境特征对于保护该带脆弱的生态环境具有重要意义。以提孜那甫河流域山区特有的冰-草生态交错带为研究对象,利用MODIS产品,基于遥感技术对其环境特征进行定性、定量分析。结果表明:交错带常年低温,年平均温度为-4.79℃,5—9月气温0℃,是主要的融雪期,融雪水量为5.4×108m~3,占提孜那甫河总径流量的70.03%,是叶尔羌绿洲重要的水源补给来源,当年9月到次年5月气温均在0℃以下为主要的积雪期;处在发育初级阶段的寒冻土和寒漠土广泛分布于交错带内,冻融荒漠化普遍且严重,植被分布极为稀疏;交错带主要包含高山流石坡、高山倒石堆、高山稀疏垫状植被等三种极干旱的内陆高原荒漠景观类型。
[Abstract]:Ice grass ecotone is an important part of terrestrial ecological ecotone. It is of great significance to study its environmental characteristics for the protection of its fragile ecological environment. Taking the ice-grass ecological ecotone in the mountainous area of Tizinafu River basin as the research object, the environmental characteristics of the zone are qualitatively characterized by using MODIS products based on remote sensing technology. The results show that the annual mean temperature is -4.79 鈩，

本文编号：1686112