Qinghai Lake is located in the northeastern part of the Tibetan Plateau, Lake 3196 meters above sea level, the average depth of 18.6 meters, the32.8 meters deep lake,360 km long coastline. The thing grows 106 kilometers,63 kilometers wide north-south, covering an area of 4583 square kilometers, lake water capacity is 85.4cubic kilometers. Buha River, Gan River for more than 40of them into the river. Qinghai Lake no outflow, so to become China's largest inland salt lake. Qinghai Lake approximately about 200to 200000years ago as a result of crustal movement and the formation of a faulted basin, basin water began flowing into the Yellow River, due to the surrounding mountains rise, clogged up water outflow, forming today's inland lakes. Qinghai Lake many birds, the main varieties of bar-headed goose, herring gulls, brown-headed gull, cormorant, ruddy Shelduck and more than 10 kinds of, to the island each spring aggregation. Lake Harbor hill, west hill, three stones and other islands. These islands are a paradise for birds, thickly dotted around the nest on the cliffs cliff, the eggs are can be found everywhere. The lake also live in a naked carp, also known as non-huang fish scales, the locals call the king of the lake, is a famous aquatic products. In recent years, due to the destruction of human activities, either birds or fish are caught in the extinction of the situation, the people have some understanding, are protected. Qinghai Lake is located in the northwest region, cold and dry lake, a large change in temperature, precipitation, annual rainfall of about 380 mm in. The river flows into the Qinghai Lake is a seasonal river, the lake water level drops, the lake narrows, increased salinity water.