土壤-植被-大气传输模型的组成及其耦合方法研究

摘要

Based on the physical and bio-physical processes of water and energy exchange for soil-vegetation-atmosphere system,the canopy radiative transfer,runoff exchange and water and energy migration process in soil vertical direction were descripted by the soil-vegetation-atmosphere transfer model（SVAT）,and land surface and atmosphere exchange of matter and energy,as well as the mechanisms of the system interaction between elements were revealed.The composition,parameterization schemes for main water and heat process,those coupled model,improvement and application of SVAT models were summarized,some problems to improve and perfect existing SVAT models were put forward.%基于土壤-植被-大气系统水分和能量交换物理过程和生物物理过程的土壤-植被-大气传输模型（SVAT）,描述了冠层辐射传输、径流交换和土壤垂直方向的水分和能量迁移过程,揭示陆面/大气物质和能量交换、土壤水热迁移的动态特征,以及该系统各组成要素间的相互作用机制。简述了SVAT模型的主要组成部分、水热过程参数化方案及其耦合模式,总结了SVAT模型的研究进展及应用,并提出了亟待进一步改进和完善的问题。