江河源区地域界定研究

Definition on the source regions of Yangtse River, Yellow River and Lantsang River

通过现有的各种文献资料、遥感资料,结合实地考察,确定江河源区主要包括江源地区和河源地区,江源地区主要指长江源区和澜沧江源区,其流域面积约为19.4578万km2;河源地区主要指黄河源区,其流域面积为12.3612万km2(不包括甘川大转弯);江河源区流域面积在青海省境内为31.8190万km2。

Based on the methods of synthesizing historical literature materials,RS materials and making an on-the-spot investigation,this research tries to define the sources of the Yangtze River,Yellow River and Lantsang River in Qinghai province,which principally includes the source of the Yangtze River and Lantsang River,and the region of Yellow River (not including the part area in Gansu province and Sichuan province),both areas are about 194 578 km^2 and 123 612 km^2 separately.The whole area of the three rivers in Qinghai province is about 318 190 km^2.