[Enrichment of organic matter and nitrogen in eroded bedloads].
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.
Zhang
X
X
State Key Laboratory of Soil Erosion and Dryfarming on Loess Plateau, Yangling, Shaanxi 712100. zhangxc@ms.iswc.ac.cn
Shao
M
M
D005308:Fertilizers; D009584:Nitrogen / Q000378:metabolism*; D011891:Rain; D012987:Soil
D005308:Fertilizers; D012987:Soil; D009584:Nitrogen