Distribution Characteristics of Soil Water Stable Aggregates in a Small Typical Watershed of Xinjiang Wei Autonomous Region

CHAI Zhong-ping; WANG Xue-mei; CHEN Bo-lang; SUN Xia; JIA Hong-tao

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Distribution Characteristics of Soil Water Stable Aggregates in a Small Typical Watershed of Xinjiang Wei Autonomous Region

- Distribution Characteristics of Soil Water Stable Aggregates in a Small Typical Watershed of Xinjiang Wei Autonomous Region
- Bulletin of Soiland Water Conservation Vol. 28, Issue 3, Pages: 94-96(2009)
- 作者机构：
  
  1. 新疆农业大学草业与环境科学学院,新疆,乌鲁木齐,830052
  3. 新疆师范大学地理科学与旅游学院新疆,乌鲁木齐,830054
- 作者简介：
- 基金信息：
- DOI：
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- Published：2009
- 稿件说明：
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CHAI Zhong-ping, WANG Xue-mei, CHEN Bo-lang, et al. Distribution Characteristics of Soil Water Stable Aggregates in a Small Typical Watershed of Xinjiang Wei Autonomous Region[J]. Bulletin of Soiland Water Conservation, 2009, 28(3): 94-96.
DOI：

CHAI Zhong-ping, WANG Xue-mei, CHEN Bo-lang, et al. Distribution Characteristics of Soil Water Stable Aggregates in a Small Typical Watershed of Xinjiang Wei Autonomous Region[J]. Bulletin of Soiland Water Conservation, 2009, 28(3): 94-96. DOI：

摘要

新疆是全国水土流失面积大区。以新疆典型小流域——阜康市三工河流域为例，对区域土壤水稳性团聚体分布特征及其影响因素做了初步研究，旨在为小流域土壤侵蚀治理提供重要参考依据。通过对流域内典型梁峁坡地、不同坡度坡地及不同植被覆盖地0—20 cm和20—50 cm剖面层土壤进行采样分析。结果表明，该流域土壤水稳性团聚体含量分布存在以下特征：土壤同一剖面自上而下呈递减趋势；同一坡面随坡位自上而下呈增加趋势；不同坡度则随坡度的增加而减少；不同植被覆盖度土壤水稳性团聚体含量呈现：农用坡耕地&lt；林地&lt；草地&lt；草灌地。

Abstract

Xinjiang is a large district suffering from soil and water loss in China

but soil erosion processes in the region have not yet been under stood deeply.Taking San'gong River water shed in Fukang City

Xinjiang Wei Autonomous Region

as an example

a preliminary study for the distribution characteristics of waterstable aggregate content and its influence factors was performed to provide an important basis for soil erosion control.Soils of 0-20 cm and 20-50 cm on a typical hilly slope

slopes of different gradients

and vegetation converage of different degrees were analyzed.Results showed that the dist ribution of soil water stable aggregates in the small watershed had the following characteristics:it had a decreasing tendency from surface down to bottom in the same soil profile;on the same slope

it had a increasing tendency from top to bottom;and on slopes of different gradients

it had a decreasing tendency with slope increasing.In terms of the water stable aggregate content under vegetation coverage of different degrees

landuse was in the descendant order of sloping cropland

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