江西省土壤侵蚀评估系统的设计与实现

Design and Achievement of Soil Erosion Assessment System of Jiangxi Province

在土壤侵蚀研究方面,以往对侵蚀模型及模型中各因子及其相应算法的研究较多,但对基于过程的物理模型系统研究较少。江西省是我国水土流失较严重的省份,目前还没有专门针对江西省进行土壤侵蚀模数计算的可用性强的土壤侵蚀评估系统。在USLE模型的指导下,采用ArcGIS Engine二次开发包,通过C++和IDL混合编程,编写土壤侵蚀模型算法和程序代码,建立了江西省土壤侵蚀评估系统,实现了对江西省土壤侵蚀模数的定量计算,其成果可应用于江西省及鄱阳湖流域水土保持生态建设。

On the aspect of soil erosion study,there used to be more studies on soil erosion model,each factor of models and its corresponding algorithm but less study on the process-based system of physical model. Jiangxi is a more severe soil and water loss province in China. At present,there is no soil erosion assessment system with high usability which aims at the calculation of soil erosion modulus in the province. The paper established soil erosion assessment system of Jiangxi Province,achieved quantitative calculation of soil erosion modulus of the province and the results could be used to the soil and water conservation ecological building of the province and Poyang Lake basin under the guidance of USLE model,by using ArcGIS Engine re-development kit and programming code and algorithm of soil erosion model through C + + and IDL hybrid programming.