土壤水蚀预报模型研究进展

对土壤侵蚀进行准确预报,是指导水土保持措施优化配置、水土资源保护与持续利用的有效工具,对于退化生态系统的重建具有重要的意义。在对国外土壤侵蚀模型发展过程进行简单回顾的基础上,重点对我国土壤水蚀预报模型的研究进展做了详尽的分析,并从研究方法和研究内容两个方面,论述了今后我国土壤侵蚀模型研究中亟待解决问题

Development of soil erosion models in China

Soil erosion is one of the most serious environmental issues in China It is very important to investigate the mechanism of soil erosion and to develop soil erosion model, which is the useful tool to design the measures of soil and water conservation and sustainable use of soil and water resources, and is also closely related with the rehabilitating of the degenerated environment The development of soil erosion models in U S A, Europe, and Australia was reviewed briefly and then the development of soil erosion model in China was analyzed in detail Both empitical models, process based models,and the utilization condition of new techniques such as GIS, RS, REE in soil erosion were evaluated in this paper On the basis of the above evaluations, the issues existing at present research , which need to be enhanced in the future research, were identified The purpose of this paper was to learn the overseas experience and promote future soil erosion model development in China