The research is funded by the national natural science fund project titled integration and systematization of mathematic models for soil and water resources study in a basin and its application ( sanction number : 40071043 ) . supported by gis ( geographical information system ) and remote sensing technology , it has carried on computer simulation of chemical runoff in the study area of lianshui basin , xingguo county , jiangxi province , using swat ( soil and water assessment tool ) model developed by ars ( agricultural research service ) of usda ( united states department of agriculture ) 本文在国家自然科学基金项目“流域土壤和水资源模拟模型的集成和系统化及其应用” (批准号： 40071043 )的资助下，选择了美国农业部农业研究所开发的swat ( soilandwaterassessmenttool )模型，在gis和遥感技术的辅助下，在江西潋水河流域进行了化学径流的计算机模拟研究。
2.
The simulated values by year and moon of many nutrients such as n and p are obtained in lianshui watershed and its 62 sub - basins . besides , the simulation of chemical runoff of lianshui basin is carried on based on the land use in 1993 and in 2000 . also the results are analyzed from time ( annual and moon ) and space respectively 获得了潋水河流域及其62个子流域的按年和月输出的多种养分的模拟值；并利用1993年和2000年两期的土地利用分别对江西潋水河流域的化学径流进行了计算机模拟，从时间(年和月)和空间上分别对模拟的结果进行了分析研究。
3.
Distributed simulation study of multi - geographical process was carried out in the study area of lianshui basin , xingguo county , jiangxi province supported by rs and gis , using the simulation models system developed by usda . this project is funded by the national natural science fund titled " integration and systematization of mathematic models for soil and water resources study in a basin and its application " 本文以国家自然科学基金项目“流域土壤和水资源模拟模型的集成和系统化及其应用”为依托，选择美国农业部开发的流域尺度的地理过程模拟模型，在遥感和gis技术的支持下，在江西兴国县的潋水河流域进行了多种地理过程的分布式模拟研究。
