Soil Loss of Different Typical Soils in South China Under Different Rainfall Types

ZHANG Li-ming; YU Dong-sheng; SHI Xue-zheng; LIN Jin-shi

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Soil Loss of Different Typical Soils in South China Under Different Rainfall Types

- Soil Loss of Different Typical Soils in South China Under Different Rainfall Types
- Bulletin of Soiland Water Conservation Vol. 30, Issue 4, Pages: 1-6(2011)
- 作者机构：
  
  1. 福建农林大学资源与环境学院,福建,福州,350002
  2. 中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室,江苏,南京,210008
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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ZHANG Li-ming, YU Dong-sheng, SHI Xue-zheng, et al. Soil Loss of Different Typical Soils in South China Under Different Rainfall Types[J]. Bulletin of Soiland Water Conservation, 2011, 30(4): 1-6.
DOI：

ZHANG Li-ming, YU Dong-sheng, SHI Xue-zheng, et al. Soil Loss of Different Typical Soils in South China Under Different Rainfall Types[J]. Bulletin of Soiland Water Conservation, 2011, 30(4): 1-6. DOI：

摘要

利用江西省鹰潭市红壤国家生态实验站1997—2003年度自然降雨观测资料和该站我国南方主要类型土壤径流小区的流失量实测数据，研究了5组降雨类型(I：12.7 mm<次降雨量<20 mm；Ⅱ：20 mm≤次降雨量<30 mm；Ⅲ：30 mm≤次降雨量<40 mm；Ⅳ：40 mm≤次降雨量<50 mm；Ⅴ：次降雨量>50 mm)在单位降雨(1 mm)和单位降雨侵蚀力(1个数值侵蚀力)条件下不同类型土壤的流失量差异。结果表明：(1)单位降雨产生侵蚀力的规律为：Ⅴ>Ⅲ>Ⅳ>Ⅱ>Ⅰ类降雨。(2)不同土壤在单位降雨下的产沙量趋势呈：Ⅰ>Ⅳ>Ⅲ>Ⅴ>Ⅱ类降雨。(3)在单位降雨侵蚀力下，除Ⅱ类降雨的产沙量相对比Ⅴ类降雨的产沙量大以外，其它各类降雨的产沙量规律与单位降雨的产沙规律相一致，均呈现：Ⅰ>Ⅳ>Ⅲ类降雨。

Abstract

According to the observation data of rainfalls and soil loss in the ecological experiment station of red soil(EESRS)in Ying tan City of Jiang xi Province from 1997 to 2003

the amounts of soil erosion of single precipitation and single rainfall erosivity in different soils of south China were analyzed.The results were as following:(1)The tendency of rainfall erosivity in single precipitation was:Ⅴ>Ⅲ>Ⅳ>Ⅱ>Ⅰ(I:12.7mm50mm).(2)The tendency of unit precipitation on soil loss in different soil types was:Ⅰ>Ⅳ>Ⅲ>Ⅴ>Ⅱ.(3)The tendency of soil loss in single rainfall erosivity was the same as that of unit precipitation

except grade rainfall.

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