沙坡头人工植被区陆气耦合模式及生物结皮与植被演变的机理研究

论述了研究陆气相互作用的意义和现状。在以前工作基础上，针对腾格里沙漠人工植被区陆气水热传输过程，提出了一个多层陆气耦 .人出了导水率的计算模型和修正后的根系吸水,考虑了结皮层对于土壤水分入渗的影响以及植被演变的过程。陆气耦 地大气，植被，土壤作多层划分，以助于细致了解沿高度分布的各物理量。同时，介绍了当地气候概况和野外观测情况。利用本模式对中国科学院沙坡头沙漠站人工植被区陆气水热交换过程进行了数值模拟，模拟结果与实测值吻合较好，可为当地合理利用水热资源和治理沙漠提供科学依据。

A Land-Atmosphere Coupling Model and Mechanism of the Crust Layer and the Evolution of Canopy in Artificial Vegetation Area of Shapotou

It is well-known that land-atmosphere interaction exerts great influences on global and regional environment.In order to determine the fluxes and parameterization scheme at the land-atmosphere interface,it is necessary to investigate terrestrial processes on typical underlying surface.In recent years,people have come to recognize the close relationship between the water-heat exchange process in the land-atmosphere interface and the canopy,more and more attention has been paid to the influence on the climate...