黄土高原水土保持与雨水资源化

在分析黄土高原水土保持工作难度的基础上，进一步研究区域水土保持的科学内涵，以及水土保持与雨水资源化的关系。认为：黄土高原水土保持的关键与核心在于如何实现雨水资源化；降雨径流调控与利用不仅可实现雨水资源化，而且可以同步解决制约该区发展的干旱缺水与水土流失并存2大难题。在此基础上，提出了黄土高原水土保持亟待研究的科学问题与技术问题，并初步构建了黄土高原水土保持与雨水资源化的技术体系框架。

Soil and water conservation and rainwater resource utilization in the Loess Plateau

To solve the problems of drought and soil erosion and water loss and increase benefit of soil and water conservation in the Loess Plateau in China, some basic questions of soil and water conservation were discussed and the meaning and relationships between rainwater resource utilization and soil and water conservation were analyzed. The results showed that controlling rainfall runoff, efficient use and conservation of water and soil resources are not only the strategic foundation but also the important tasks for soil and water conservation in the Loess Plateau. The theory of rainwater resource utilization are the theoretical principle of technology realization of the effective transformation of rainwater resources. The rainwater might be used fully and the soil erosion and water loss could reduced in a large scale and the use efficiency of the precipitation resources at different level could be enhanced by uitilizing the rainfall power interception technology, the rainfall infiltration technology on the spot, the rainfall runoff collection technology, the rainfall runoff storage technology, and rainfall runoff use technology and so on. The converting of rainwater into resources and reducing the soil erosion and water lossby controlling rainfall runoff were a highly effective utilization technology. Not only was it an extremely practical effective convenient operable environmental protection technology, but also a systems engineering with the obvious long-term character and public interest characteristic. The future development of the rain water converting into resources technology would rely on the supporting and application of the high new technology.