绿水评估方法研究进展

在回顾绿水量计算方法的基础上，阐述了水分平衡法、植物生理学法、微气象学法、模型法、遥感法及仪器法的适用条件和特点，认为遥感信息支持下的微气象学法和模型法实际可操作性更大；提出了绿水计算面临的两个关键问题是时间和空间尺度、生产性绿水与非生产性绿水的分离，分析了气候变化和下垫面景观变化对绿水评估的影响，同时展望了绿水评估对水资源一体化管理的应用前景。

Advances in methods for green water assessment

This paper describes the characteristics and applicable conditions of the water balance , plant physiology , micro-meteorology , vegetation dynamics or hydrologic models , remote sensing , and apparatus methods , based on an overview of the methods for green water flow calculation .The results show that the methods derived from micro-meteorology and vegetation dynamics or hydrologic models are more workable in the real world with the help of remotely sensed information .There are two key problems during the green water flow assessment .One is spatial and temporal scales , and the other is separation of productive and non-productive green water flows .The impacts of climatic change and human-induced landscape change on the green water assessment are also analyzed . Finally, the paper describes the future application of green water flow assessment to integrated water resources management .