淮河中游北岸地区“四水”转化研究

针对近期强人类活动对区域水循环的影响,以淮河中游北岸典型区为研究对象,利用分布式水文模型研究该地区的"四水"(大气水、地表水、土壤水和地下水)转化定量关系。结果表明,研究区水循环受人类活动影响剧烈,产生了明显的自然-社会二元性特征,对"四水"间的相互转化产生重要影响;2003—2010年研究区地表水、土壤水和地下水存在正向补给趋势,增加了当地水资源可利用量;研究时段内研究区需要来自区域外的水汽补给来支持年均39.77×108m3的降水量。最后在定量分析的基础上给出了当地水资源管理与合理利用的若干建议。区域"四水"转化关系研究可为当地的水资源评价、规划和管理提供基础性的技术支持。

Study on the “Four-water” Transformation on North Shore of Middle Reaches of the Huaihe River

In view of the strong impact of human activities on the regional water cycle in recent years, the transformation among four types of water needs to be well studied. A typical area on the north shore of middle reaches of the Huaihe River was selected as the study region, and a distributed hydrological model was used to study the quantitative relationship of the four types of water in this region. Results show that the water cycle in the study area is influenced by human activities intensely and presents characteristics of duality of nature and society, which finally affect the transformation among the four types of water. In 2003-2010, the surface water, the soil water and the groundwater in the study area had net replenishments, which increased the available amount of local water resources. The study region needs water supplement from area outside to support the annual average rainfall of 3977 million m3 in the study period. Finally, on the basis of quantitative analysis, several suggestions about the management and utilization of the local water resources are given. The study on the relationship of the region “four-water” transformation can provide basic technical supports for the local water resources evaluation, planning and management.