青藏高原拥有地球上海拔最高、数量最多、面积最大的高原湖泊群。据全国第一次湖泊调查的成果，青海省1.0平方公里以上的湖泊有260多个，面积约1.29万平方公里，占全国湖泊总面积的七分之一。目前国内许多学者对青藏高原的湖泊研究多集中于局部地区、短时间过程的研究，难以反映青海省三十年来湖泊动态变化的全貌，尤其是对近期湖泊显著扩张的研究不多，对人类活动影响剧烈的柴达木盆地研究更少，对湖泊变化的成因研究不够深入。本项目将在我们对青海省三十年来1平方公里以上湖泊水面形态全新解译的基础上，深入研究湖泊三十年来的演化特征及面积的时空分异规律，从流域视角，研究湖泊对气候水文变化与人类活动的响应，揭示湖泊演化的主要原因。项目的开展不仅对研究青藏高原区域气候、环境变化有重要的意义，而且能为合理利用、保护湖泊资源提供依据。

The Qinghai_Tibetan Plateau owns the lakes with the highest altitude, the most number and the biggest area. According to the first national survey about lakes, there are more than 260 lakes with over 1.0 square kilometers in Qinghai province. The area is about 12.9 thousands square kilometers, which is one seventh of the total lake area of the whole nation. Currently most studies on lakes in Qinghai_Tibetan Plateau carried out by many researchers in China are focused on the local region and short period. The results can not reflect the overall dynamic change of the lakes over the past thirty years in Qinghai province, especially lacking of deep investigations for the reason of change. In this project, based on our novel interpretation on the state of the lakes and the water surface area over 1.0 square kilometers in Qinghai province in the past thirty years, the evolution and the temporal-spatial distribution of the lakes will be deeply investigated. From the perspective of drainage area, the response of lakes to the climate change and human activities will be studied. The reasons for the lake evolution will be revealed. The investigations in this project not only play important roles on the study of the regional climate and environmental change in Qinghai_Tibetan Plateau, but also can provide guidance for the lake resource utilization and protection.