干旱区陆面过程野外观测研究

Field Study on Terrestrial Processes in Arid Areas

主要论述了陆 -气相互作用研究在干旱区人类生存环境与发展区域经济中的重要意义。同时 ,介绍了观测场地以及野外观测情况。最后 ,对干旱区腾格里沙漠宁夏沙坡头无灌溉的植物固沙区、青海海北高寒草甸区和新疆塔里木盆地灌溉的绿洲农田的陆 -气水热交换过程观测结果进行了讨论。并且 ,研究了干旱区不同下垫面的陆 -气相互作用规律 ,可为研究局地生态环境。

The importance of the land-atmosphere interaction studies over the living environment in the arid areas is presented. Meanwhile the system of model parameterized and measuring index as well as the measuring field and results have also been introduced. The measuring results of the land-atmosphere water-heat exchange process in the non-watering plot in Shapotou desert area, Ning Xia Province, in high-cold meadow of Qing Hai Province, and in the irrigating agricultural fields in Tarim Basin, Xin Jiang pr ovince are discussed. Through the comparison with the actual measuring data, the model is proved to successfully simulate the land-atmosphere interaction processing. The land-atmosphere interaction rule in various land surfaces in the arid areas can provide scientific foundation for the optimizing use of local water-heat resources.