青海湖长105公里青海湖是淡水湖么还是咸水，宽63公里青海湖是淡水湖么还是咸水，湖面海拔3196米湖青海湖是淡水湖么还是咸水的四周被四座巍巍高山所环抱北面是大通山青海湖是淡水湖么还是咸水，东面是日月山，南面是青海南山...