西藏昂拉仁错湖泊演化的遥感分析

本文应用陆地卫星图像，分析了西藏昂达仁错湖泊萎缩的现状，建立了湖泊萎缩的影像解译标志，并根据其在演化过程中所留下的萎缩痕迹，反演出昂拉仁错湖泊在6个不同时期的萎缩状况。认为气候干旱是导致湖泊萎缩的主要因素。

Remote sensing interpretation of the evolution of the Ngangla Ringco Lake in northern Xizang

The collapse features of the Ngangla Ringco Lake in northern Xizang are interpreted with the aid of the Landsat images, thus resulting in the determination of the indicators for the image interpretation. Six stages of the lake collapse are traced out in the light of the collapse traces in the lake. It can be seen that the gradual collapse of the lake should be attributed to the dry climates, alluvial fillings and ruoff loss caused by the large- scale uplifting of the Qinghai-Xizang Plateau. This study is significant to the understanding of not only the cause, velocity and degree of the lake collapse but also the dynamic regimes and regional changes of water resources and environments.