土壤侵蚀对耕地土壤生产力的影响研究

Research on Effect of Soil Erosion on Cultivated Land Soil Productivity

土壤侵蚀影响土壤生产力的模拟试验广泛开展,但由于研究方法的差异和研究区气候、土类、作物的差异,导致所得结论差异明显。土壤侵蚀对生产力的影响研究,需要按分区布设实验,需要尽量排除景观位置、作物和耕种方式差异的影响,更需要长期的实验研究排除降水年际间波动的影响。

Soil erosion affects the popular development of simulation experiment of soil productivity, the difference of result in this study is very significant because there are some differences among research method, and climate, soil types and crops in research area. Research about effect of soil erosion on productivity needs experiment design according to division, and needs best approach to eliminate the differences of landscape position, crop and cultivation method. It more needs perennial experimental research to eliminate the precipitation fluctuation among years.