土壤侵蚀强度分级标准适用性初探 - 水土保持通报.PDF

19 6 Vol.19 No.6 1999 12 Bulletin of Soil and Water Conservation Dec., 1999 　 袁　建　平 (, 100875) 　:, , 　　　 。, , 。 :　　　 :A　　:1000-288X(1999)06-005 -0 　　:S157.1 Preliminary Study on Grade Scale of Soil Erosion Intensity YUAN Jian-ping (Dep artment of Resources and Environment, B eij ing Normal University , Beijing 100875, PR C) Abstract:Based on the grade scale of soil erosion intensity issued by the Ministry of Water Resources, relying on the research results of former scholars, soil erosive modulus under different coverage of plants are compared.The results showed that the grade scale of soil erosion intensity was different from the re- search results of former scholars, and the applicable of the grade scale need be studied further. Keywords:soil erosion intensity;coverage of plant;grade scale;soil erosive modulus 1　　 , 1　 , / / 　　 -2 -1 -1 (t·km ·a ) (mm ·a ) , 1. 200, 500, 1000 0.15,0.37,0.7 2. 200, 500,0.15,0.37,0.7 1.9 3. 1.93.7 . 3.75.9 [1] 5. 800015000 5.911.1 ( 1, 6. 15000 11.1 2), , 1, 2 , (3—5), , 。 ,、, 、。1988, 1997 2 , , ,,。 :1999-09-03 :“”(9725103)。 :, , 28 , 。。 6