WATER BALANCE AND WATER LEVEL CHANGE IN QINGHAI LAKE

摘要

The Qinghai Lake, the largest closed interior saline lake in China with the area of296611 km^2 and the altitude of 3000m, is located in the northeast of Tibet Plateau. It is sofar from industrial area that it is in the natural to semi-naturnal state. This means it isweakly influenced by human activities. So, the lake is a good place to investigateenvironmental and climatic changes. In fact, during last hundreds of years the water