Study on Preventing Effect of three Farmland Shelter-Forest Network on Soil Wind Erosion

BAO Yu-hai; HE Xiu-bin; YANG Ji-hua; SUN Cheng-nan; LI Hong-yun; ZONG Ping-ping

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Study on Preventing Effect of three Farmland Shelter-Forest Network on Soil Wind Erosion

更新时间：2024-11-07

- Study on Preventing Effect of three Farmland Shelter-Forest Network on Soil Wind Erosion
- Vol. 21, Issue 2, Pages: 5-8(2007)
- 作者机构：
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- DOI：
  CLC： S727.24S157
- Published：2007
- 稿件说明：
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BAO Yu-hai, HE Xiu-bin, YANG Ji-hua, et al. Study on Preventing Effect of three Farmland Shelter-Forest Network on Soil Wind Erosion[J]. 2007, 21(2): 5-8.
DOI：

BAO Yu-hai, HE Xiu-bin, YANG Ji-hua, et al. Study on Preventing Effect of three Farmland Shelter-Forest Network on Soil Wind Erosion[J]. 2007, 21(2): 5-8. DOI：

摘要

在山东省夏津县黄河故道冲积沙地建立土壤风蚀试验区

采用标尺法对3种网格的农田防护林和对照地的土壤风蚀量进行观测

测定结果表明:农田防护林网可明显减少风蚀损失

其中

130m×300m林网相对于对照减少土壤风蚀量81%

260m×300m林网相对于对照减少78%

300m×400m林网相对于对照减少75%

即随着网格面积的增加对风蚀量的影响越来越小。同时

土壤风蚀程度与测定期间日平均风速>4 m/s的出现频率有密切关系

土壤风蚀量与风速之间的最佳拟合关系为幂函数关系

二者之间呈正相关关系

相关系数在0.95以上。黄河故道冲积沙地农田防护林网对5.0~5.9 m/s范围内的风速引起的土壤风蚀防治效果最好。

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