Study on Functions of Soil and Water Conservation by Mulberry Hedgerow Intercropping of Purple Soil Slopping Farmland in Three Gorges Reservoir Region

SHI Dong-mei~1

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Study on Functions of Soil and Water Conservation by Mulberry Hedgerow Intercropping of Purple Soil Slopping Farmland in Three Gorges Reservoir Region

更新时间：2024-11-07

- Study on Functions of Soil and Water Conservation by Mulberry Hedgerow Intercropping of Purple Soil Slopping Farmland in Three Gorges Reservoir Region
- Vol. 19, Issue 3, Pages: 75-79(2005)
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  CLC： S157.2
- Published：2005
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SHI Dong-mei~1. Study on Functions of Soil and Water Conservation by Mulberry Hedgerow Intercropping of Purple Soil Slopping Farmland in Three Gorges Reservoir Region[J]. 2005, 19(3): 75-79.
DOI：

SHI Dong-mei~1. Study on Functions of Soil and Water Conservation by Mulberry Hedgerow Intercropping of Purple Soil Slopping Farmland in Three Gorges Reservoir Region[J]. 2005, 19(3): 75-79. DOI：

摘要

以传统种植模式为对照

对桑基植物篱模式拦蓄径流、泥沙及改善土壤抗蚀性的效应进行了较为系统的研究。结果表明:桑基植物篱模式下土壤抗蚀性有较大程度的提高

表层土团聚度和团聚状况分别较传统种植模式提高25 2%和50 6%

而分散率则下降了3 7%

水稳性指数为传统顺坡种植的1 9倍

前10min水稳性团聚体破坏率仅为传统种植模式的57 2%。同时

桑基植物篱的应用能有效地减少紫色土坡地的水土流失

尤以侵蚀量和径流含沙量的减少和降低更为明显

与传统种植模式相比

径流量和径流系数减少或降低了10 34%～20 00%

侵蚀量减少了55 23%～67 84%

径流含沙量减小了48 60%～59 80%;在大雨强时桑基植物篱对减少养分的流失总量和富集比效果也相当显著。该技术的应用可有效地保证紫色土坡地土壤对降雨的充分入渗

减少面源污染

保持坡耕地的土地生产力。

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Study on Functions of Soil and Water Conservation by Mulberry Hedgerow Intercropping of Purple Soil Slopping Farmland in Three Gorges Reservoir Region

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