Enrichment of organic matter and nitrogen in eroded bedloads

Abstract

Abstract: 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(ER_clay)resulted in the enrichment of OM and TN,and the average value of ER_clay,ER_OM and ER_TN under different slope gradients was 1.77,2.09 and 1.61,respectively.The soil erosion module was negatively correlated with ER_OM and ER_TN.The measures for soil erosion may increase the ER_OM and ER_TN affected by rainfall,slope gradient,tillage and fertilization.

Key words: Bedload, Organic matter, Nitrogen, Enichment

CLC Number:

S143.1
S157.1

ZHANG Xingchang, SHAO Mingan . Enrichment of organic matter and nitrogen in eroded bedloads[J]. Chinese Journal of Applied Ecology, 2001, (4): 541-544.

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Enrichment of organic matter and nitrogen in eroded bedloads

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