發(fā)布時間：2018-03-30 13:26

  本文選題：提孜那甫河流域　切入點：冰-草生態(tài)交錯帶　出處：《山地學(xué)報》2016年06期

【摘要】：冰-草生態(tài)交錯帶是陸地生態(tài)交錯帶的重要組成部分,在全球氣候變暖背景下,研究其環(huán)境特征對于保護該帶脆弱的生態(tài)環(huán)境具有重要意義。以提孜那甫河流域山區(qū)特有的冰-草生態(tài)交錯帶為研究對象,利用MODIS產(chǎn)品,基于遙感技術(shù)對其環(huán)境特征進行定性、定量分析。結(jié)果表明:交錯帶常年低溫,年平均溫度為-4.79℃,5—9月氣溫0℃,是主要的融雪期,融雪水量為5.4×108m~3,占提孜那甫河總徑流量的70.03%,是葉爾羌綠洲重要的水源補給來源,當(dāng)年9月到次年5月氣溫均在0℃以下為主要的積雪期;處在發(fā)育初級階段的寒凍土和寒漠土廣泛分布于交錯帶內(nèi),凍融荒漠化普遍且嚴(yán)重,植被分布極為稀疏;交錯帶主要包含高山流石坡、高山倒石堆、高山稀疏墊狀植被等三種極干旱的內(nèi)陸高原荒漠景觀類型。
[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，

本文編號：1686112