Simulation Study of Soil Water Dynamics in Overlying Soil with Filling Layers

GUAN Tian-yu; ZHU Zhen; SHANG Tao; GUO Wei; WANG Hui

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Simulation Study of Soil Water Dynamics in Overlying Soil with Filling Layers

- Simulation Study of Soil Water Dynamics in Overlying Soil with Filling Layers
- Bulletin of Soiland Water Conservation Vol. 27, Issue 3, Pages: 97-100(2008)
- 作者机构：
  
  中国矿业大学环境与测绘学院,江苏,徐州,221116
- 作者简介：
- 基金信息：
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- Published：2008
- 稿件说明：
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GUAN Tian-yu, ZHU Zhen, SHANG Tao, et al. Simulation Study of Soil Water Dynamics in Overlying Soil with Filling Layers[J]. Bulletin of Soiland Water Conservation, 2008, 27(3): 97-100.
DOI：

GUAN Tian-yu, ZHU Zhen, SHANG Tao, et al. Simulation Study of Soil Water Dynamics in Overlying Soil with Filling Layers[J]. Bulletin of Soiland Water Conservation, 2008, 27(3): 97-100. DOI：

摘要

水分变动状况是充填复垦土壤质量的重要指标。通过充填柱模拟实验研究了充填复垦中充填层物料孔隙度大小对覆土层含水量变化的影响。结果表明

充填层孔隙度略小于覆土层时

覆土层含水量减少最快

而充填层孔隙度大于覆土层时

覆土层含水量减少速度与充填层孔隙度成正相关。因此

在充填复垦实践时

应根据覆土层孔隙度情况设计充填层的孔隙以保证充填复垦土壤有较强的保水性能。

Abstract

Soil water dynamics is one of the important indicators of reclaimed land quality.This paper is concerned about water dynamics in overlying soil with filling layers of different porosities by simulation experiment.Results indicate that water loss is faster when the filling layer porosity is slightly less than that of overlying soil.On the contrary

water loss is positively related to porosity when the filling layer porosity is greater than that of overlying soil.So

in order to keep more water in overlying soil in filling reclamation

filling layer porosity should be designed according to the porosity of overlying soil.

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