东北黑土漫岗区长坡面坡耕地侵蚀产沙沿程变化(英文)

被引：19

作者：

崔明 ^{[1
]}

蔡强国 ^{[1
]}

朱阿兴 ^{[1
]}

范昊明 ^{[2
]}

机构：

[1] Key Laboratory of Water Cycle and Related Land Surface Processes,Institute of Geographic Sciences and Natural Resources Research,CAS

[2] College of Water Resources,Shenyang Agricultural University

来源：

Journal of Geographical Sciences | 2007年 / 03期

关键词：

D O I：

暂无

中图分类号：

P942 [中国自然地理]; P512.2 [剥蚀作用、搬运作用、沉积作用];

学科分类号：

0705 ; 070501 ; 0709 ; 081803 ;

摘要：

Characteristics of soil erosion change along a long slope in the gentle hilly areas in black soil region in Northeast China are discussed. A simplified slope model based on seg-ments was used to analyze the runoff data and soil erosion data observed between 2003 and 2004 over 10 field plots with different slope length in Heshan Farm,Heilongjiang Province. We found that soil erosion rate over long slopes in the black soil region changed alternatively along the slope and creates alternative zones of intensive erosion and week erosion.The exact place of each zone is different for different rainfall conditions. In a year with less and mild precipitation,rill cannot happen within the top 50 m,while in a year with large and inten-sive precipitation,rill can be formed starting even at 15 m from the top of the slope.

引用

页码：375 / 383

页数：9