Influences of Grazing Disturbance on Soil Physical Properties in Planted Forest

YAN Ji-you; XU Kai-ran; SHEN Xin-shan

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Influences of Grazing Disturbance on Soil Physical Properties in Planted Forest

- Influences of Grazing Disturbance on Soil Physical Properties in Planted Forest
- Bulletin of Soiland Water Conservation Vol. 27, Issue 6, Pages: 138-141(2008)
- 作者机构：
  
  1. 青海省互助县松多林场, 青海互助,810500
  2. 水利部牧区水利科学研究所,内蒙古,呼和浩特市,010010
  3. 北京绿色奇点科技发展有限公司,北京,100081
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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YAN Ji-you, XU Kai-ran, SHEN Xin-shan. Influences of Grazing Disturbance on Soil Physical Properties in Planted Forest[J]. Bulletin of Soiland Water Conservation, 2008, 27(6): 138-141.
DOI：

YAN Ji-you, XU Kai-ran, SHEN Xin-shan. Influences of Grazing Disturbance on Soil Physical Properties in Planted Forest[J]. Bulletin of Soiland Water Conservation, 2008, 27(6): 138-141. DOI：

摘要

为揭示人工林群落在人为干扰下的退化状况

应用空间对比法研究了放牧干扰对黄土高原人工油松林下土壤物理性状的影响。结果表明

随放牧干扰强度的增加

土壤中砂粒含量增加

黏粒含量下降

土壤出现砂化趋势。放牧干扰下土壤容重增加了0.09~0.39 g/cm

。随放牧干扰强度的增加

土壤总孔隙、毛管孔隙和非毛管孔隙呈大幅下降的趋势

土壤持水量、含水量、入渗速率和导水率降低。重度干扰和中度干扰下土壤持水量、含水量与无放牧干扰时相比显著降低。随放牧干扰强度的增加

初渗率和稳渗速率下降

饱和导水率也随之下降。

Abstract

In order to reveal the degradation of planted forest communities under human-induced disturbance

the influences of grazing disturbance on soil physical properties under planted Pinus tabulaeformis forest on the Loess Plateau were analyzed by spatial contrast method.Results showed that compared with the soil in the undisturbed area

with the increase of grazing disturbance intensity

sand content increased

and clay content decreased.Consequently

soil texture became coarse.Soil bulk density increased 0.09~0.39 g/cm3.The total porosity

capillary space

and non-capillary space decreased greatly with the increase of grazing disturbance intensity.Soil water content

water-holding capacity

and infiltration rate decreased due to grazing disturbance.Compared with undisturbed soil

soil water content and water-holding capacity on heavily disturbed land and moderately disturbed land decreased significantly.Compared with the undisturbed soil

with the increase of grazing disturbance intensity

the initial infiltration rate and the stable infiltration rate decreased

and the saturated infiltration rate decreasedtoo.

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