Soil Anti2erodibility Under Different Landuse Types in the Loess Hill and Gully Area

ZENG Guang; Yang Qinke; YAO Zhihong

doi:11894/1005-829x.2008.28(1).6

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Soil Anti2erodibility Under Different Landuse Types in the Loess Hill and Gully Area

- Soil Anti2erodibility Under Different Landuse Types in the Loess Hill and Gully Area
- Bulletin of Soiland Water Conservation Vol. 27, Issue 1, Pages: 6-9(2008)
- 作者机构：
  
  1. 中国科学院水利部水土保持研究所, 陕西杨凌,712100
  2. 中国科学院研究生院,北京,100049
- 作者简介：
- 基金信息：
- DOI：11894/1005-829x.2008.28(1).6
  CLC： S152.72
- Published：2008
- 稿件说明：
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ZENG Guang, Yang Qinke, YAO Zhihong. Soil Anti2erodibility Under Different Landuse Types in the Loess Hill and Gully Area[J]. Bulletin of Soiland Water Conservation, 2008, 27(1): 6-9.
DOI：

ZENG Guang, Yang Qinke, YAO Zhihong. Soil Anti2erodibility Under Different Landuse Types in the Loess Hill and Gully Area[J]. Bulletin of Soiland Water Conservation, 2008, 27(1): 6-9. DOI： 11894/1005-829x.2008.28(1).6.

摘要

对黄土丘陵沟壑区安塞县不同土地利用类型的土壤抗冲性和崩解速率特征进行了测试。结果表明

抗冲性指标和崩解速率在数值上均随着土层深度的增加而增大

表明其抵抗侵蚀能力减弱。不同利用类型0-10cm表层土壤抗冲性和崩解速率强弱关系均为:灌木林>草地>乔木林>果园>农地

而在20-30cm土层及40-50cm土层有所变化。不同土地利用类型下

土壤崩解速率和土壤抗冲性之间存在着明显的直线递增关系

灌木林地土壤崩解性能随抗冲性变化速率较快

直线斜率达到0.352

而农地的崩解性能随抗冲性变化起伏最小

直线斜率为0.0145

草地、乔木林地和果园位于两者之间。其中

乔木林地与草地二者直线斜率差异不大

在相同取样深度上具有相同的变化特征。

Abstract

the characteristics of soil antisourability and disintegration rate under different landuse types were studied in Ansai County located in the loess hill and gully area. Results showed thatthe antisourability and disintegration rate increased with soil depth increasing

indicating a decrease in soil anti2erodibility. Landuse types

in terms of soil antisourability and disintegration rate within 10 cm of surface soils

ranked in the descendantorder of shrubbery

grassland

high-forest

orchard

and farmland

butthe order changed some-what in 20 -30 cm and 40 -50 cm soil layers. Under differentlanduses

the relationship between the antisourability and the disintegration rate was obviously a kind of progressively increased linearity. Soil disinte-gration rate for shrubbery changed fast as soil antisourability changed and slope of the linear equation was 0. 352 4. The linear equation slope for farmland was the smallest and is only 0. 014 5. The linear equation slopes for grassland

high-forest

and orchard were between 0. 352 4 and 0. 014 5. The difference of the line2 ar equation slopes for grassland and high-forest was little and their variation features in the same soil depth were almost identical.

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