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不同降雨条件对江苏高沙土地区水土流失的影响(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2012年03期
Page:
149-152
Column:
研究简报
publishdate:
2012-05-30

Article Info:/Info

Title:
Erosion rule of disturbed sandy soil by artificial simulated rainfall
Author(s):
HU Hui1 ZHANG Jinchi1 ZHU Lijun2* BI Feng1 YANG Cong1
1.College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China; 2.College of Science, Nanjing Forestry University, Nanjing 210037, China
Keywords:
simulated rainfall high sandy soil soil erosion
Classification number :
S157
DOI:
10.3969/j.jssn.1000-2006.2012.03.030
Document Code:
A
Abstract:
Simulated rainfall was used to study the water erosion rule of disturbed sandy soil under different slope, different rainfall intensity and different vegetation coverage conditions. The results showed:(1)The runoff increased along with the increasing slope gradient. There was a critical erosion slope between erosion amount of sandy soil and slope gradient. When rainfall intensity was lower than 80 mm/h, the critical erosion slope was between 20° and 26.5°.(2)When the rainfall amount was set, runoff amount increased as the rainfall intensity increased, while the precipitation infiltration amount decreased as the rainfall intensity increased.(3)Vegetation can greatly reduce runoff and soil erosion.

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Last Update: 2012-05-30