摘要
在人工降雨条件下，应用土壤改良剂和除草剂的不同组合处理，对美国中西部典型土壤类型——迈阿密土壤进行了室内模拟侵蚀试验，以研究土壤改良剂和除草剂的交互作用对土壤侵蚀的影响。结果表明：６种处理中，以土壤改良剂Ｇｙｐｓｕｍ和除草剂Ａｔｒａｚｉｎｅ和Ｍｅｔｏｌｅｃｈｌｏｒ混合液的组合对降低地表径流，减少土壤流失，增加土壤渗透性能效果最好，其次为土壤改良剂ＰＡＭ和除草剂混合液的组合，而土壤改良剂Ａｇｒｉ－ＳＣ和ＡＬＥＳ与除草剂混合液的组合处理则对减轻土壤侵蚀没有明显效果。
Applying different treatment of soil amendment and herbcide ,an indoor simulating erosion test in Miami soil which is typical in Midwest America is conducted to study the influence of soil amendment herbcide interaction on soil erosion by using rainfall simulation technique.Results show as follows:among six treatments,treatment with Gypsum(soil amendment )plus mixed solution of Atrazine and Metolachlor(herbcides )has the best effect in lowering surface runoff, reducing soil loss and increasing soil penetration. Treatment PAM(soil amendment )plus mixed solution of above herbcides achieves good results ,but treatments Agri SC and ALES(soil amendments )plus mixed solution of herbcides is not effective.
