So called free economic region is a special region without jurisdiction of customs, delimited by one country. There are mainly four types of free economic region, that is, commercial type of free eco
This paper firstly analyses the hydrologic characteristics of the major rivers around the Taklimakan Desert with the method of mathematical statistics. Secondly, structure features of annual runoff se
Flash floods are the important events of the hydrological regime of rivers in arid areas. In the Tarim River, northwestern china, flash flood are being monitored. The observed data and investigation d