暴雨径流资源的调控——以吉林省西部为例

ADJUSTMENT OF STORM RUNOFF RESOURCES ——TAKING JILIN PROVINCE AS AN EXAMPLE

在我国广大半干旱区，一方面降水量少，水资源短缺；另一方面，降水又集中在７、８月，且多以暴雨形式出现，给农业生产带来严重危害。探讨暴雨径流资源的合理调控，有助于变灾害性的暴雨径流为宝贵的水资源，对实现农业可持续发展有着十分重大的意义。本文以吉林省西部为例，在分析水资源概况及其在利用上存在的问题和暴雨的地域分异，及划分暴雨径流资源调控区的基础上，对如何实施吉林省西部暴雨径流资源的调控进行了探讨。文中的调控措施可为其它半干旱区暴雨径流资源的调控提供借鉴。

In the extensive semi arid regions of China,on the one hand,the precipitation is scarcy and water resources is deficiency whereas on the other hand,rainfall focuses on July and August and more often occurs in the form of storm,resulting in harmful effect on local agricultural production.Studies on rational adjustment of storm runoff resources can play the role of turning disastrous storm runoff into valuable water resources,which is of great significance to the sustainable development of local agricultural production.The paper,taking west Jilin province as an example and following the theories on regional sustainable development and landscape ecodesing,analyzes the general situation of water resources and existing problems in utilizing it,probes into the rules of regional differentialtion of storm frequency and multi year average maximum storm rainfall in 24 hours,and differentiates the adjustment zones from the angle of arid land agricultural development. It also studies the issue on how to adjust the stormrunoff resources.The adjustment measures in the closed basin are identified as 1)to utilize favorable terrain to successfully control storm runoff;and 2)to combine biological measures with engineering measures to conduct comprehensive control.The adjustment measures in the open basin include that in beaches of river valleys and low terraces,and low plains as well as combination of large projects with small works.the rational utilization of storm runoff resources in west Jilin province can be referred to in other semi arid regions of china.