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Position: Home > Articles > STUDY ON RELATIONSHIPS BETWEEN SLOPE GRADIENT AND SOIL LOSS USING ~(137)Cs TRACER Journal of Nuclear Agricultural Sciences 2004,18 (5) 60-63

~(137)Cs示踪法研究坡度与土壤流失的关系

作  者:
王晓燕;田均良;刘普灵;杨明义
单  位:
长沙理工大学;黄土高原土壤侵蚀与旱地农业国家重点实验室
关键词:
坡度;侵蚀强度;幂函数;指数函数;偏相关;137Cs示踪法
摘  要:
应用13 7Cs示踪法对陕西延安燕沟流域自然坡面上坡度与侵蚀强度之间的关系进行了研究。结果表明 ,坡面各点的坡度与侵蚀强度之间呈幂或指数函数关系 ,且相关性极显著 ,即随着坡度的增加 ,侵蚀强度呈幂或指数函数增加 ;偏相关分析结果表明 ,侵蚀强度与坡面平均坡度之间呈正相关关系 ,其相关系数为 0 4447。
译  名:
STUDY ON RELATIONSHIPS BETWEEN SLOPE GRADIENT AND SOIL LOSS USING ~(137)Cs TRACER
作  者:
WANG Xiao yan 1,2 TIAN Jun liang 2 LIU Pu ling 2 YANG Ming yi 2 (1 Changsha University of Science and Technology, Changsha,Hunan, 410076; 2 State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau; Yangling,Shaanxi, 712100)
关键词:
gradient; erosion intensity; power function; exponent function; partial correlation;137 Cs tracer method
摘  要:
By using 137 Cs as tracer, the relationships between slope gradient and soil erosion intensity were studied on the natural slopes in Yangou gully,Yan′an,Shaanxi Province. The results shows that the power functions or exponential functions exist between the gradients and erosion intensities on the slope points, and this kind of relativity is very notable. Positive partial correlation exists between average gradients and soil erosion intensities, the coefficient is 0 4447

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