晋江西溪流域绿水蓝水资源量估算及分析

运用SWAT模型计算了东南沿海晋江西溪流域的绿水蓝水资源量。对西溪流域绿水蓝水的组成和时间分布规律进行了研究,并分析了西溪流域与中国北方两流域在绿水占水资源比例上的差异。研究结果表明:(1)西溪流域1973—1979年绿水蓝水资源总量是传统水资源量的1.6倍;(2)绿水蓝水的年内分布特点为汛期最高,冬季最低,且绿水流是绿水的主要组成部分;(3)由于气候湿润、干燥度指数较小等原因,晋江西溪流域水资源以蓝水为主,约为绿水资源量的1.8倍;但也表明即使在南方地区,绿水资源仍是水资源的重要组成部分,应予以重视。

Estimating Green and Blue Water Resources in Xixi Watershed of Jinjiang Basin

Presently blue water is the main issue in the field of water resources,research,whereas less attention has been paid to green water which is important to ecological systems and rainfell agriculture as a part of water resources.Hence,green and blue water during the period of 1973 1979 in Xixi Watershed of the Jinjiang Basin was calculated using the SWAT model,and their composition feature and temporal distribution were analyzed accordingly.The result was also compared with that of two watersheds in Northern China.(1)The total amount of green and blue water resources was 1.6 times of the amount of conventional water resources in Xixi Watershed;(2)The annual green and blue water in Xixi Watershed reached peak in flood season,and was the lowest in winter,and the green water flow was a major part of green water resources;(3)Because the climate is wet and the aridity index is small in the studied area,the blue water,which was 1.8 times of green water,was the major part of the water resources in Xixi Watershed,but the green water was still an important part even in Southern China.