[Enrichment of organic matter and nitrogen in eroded bedloads].

作者：XC Zhang, Minghao Shao · 发表于：PubMed · 年份：2001 · 被引用次数：8 · 研究领域：Environmental and Agricultural Sciences、Plant Ecology and Soil Science、Rangeland Management and Livestock Ecology

Under natural rainfall, the influences of rainfall, slope gradient, tillage and fertilization on the enrichment ratio(ER) of organic matter(OM) and total nitrogen(TN) in eroded bedloads and the relationship between the ER and the composition of eroded bedloads was analyzed. The results showed that the enrichment of clay(ERclay) resulted in the enrichment of OM and TN, and the average value of ERclay, EROM and ERTN under different slope gradients was 1.77, 2.09 and 1.61, respectively. The soil erosion module was negatively correlated with EROM and ERTN. The measures for soil erosion may increase the EROM and ERTN affected by rainfall, slope gradient, tillage and fertilization.