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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (17): 267-270.doi: 10.11924/j.issn.1000-6850.2011-3720

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

不同垦作方式水土流失研究

罗兴录 樊吴静 杨鑫   

  • 收稿日期:2011-12-09 修回日期:2012-03-05 出版日期:2012-06-15 发布日期:2012-06-15
  • 基金资助:

    国家自然科学基金重点项目

Studies on the Soil and Water Loss in Different Planting Manners

LUO Xing-LU   

  • Received:2011-12-09 Revised:2012-03-05 Online:2012-06-15 Published:2012-06-15

PDF (PC)

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摘要：

为了探明垦作方式与广西旱坡地水土流失的关系，为旱坡地水土流失治整理提供理论和技术依据，对等高垦作、非等高垦作2种不同垦作方式的土壤侵蚀和水土流失状况进行研究，探讨不同垦作方式对旱坡地水土流失的影响。结果表明：与非等高垦作相比，等高垦作具有明显减轻水土流失和土壤养分流失的作用。其中，水流失量减少了10.51%，土壤流失量减少了67.09%，土壤速效氮磷钾分别减少了67.34%、66.46%、66.73%，土壤有机质减少了68.13%。由此可见，等高垦作是旱坡地防止水土流失的有效方法。

关键词: 分子生物学, 分子生物学

Abstract:

In order to explore the relationship between the soil and water erosion and the farming ways in the dry slope field in Guangxi and provide a theoretical and technical basis for comprehensive control of soil and water erosion. The effects of different farming ways on the soil and water loss were studied in this experiment. The results showed that: compared with non-contour farming system, contour farming reduced water and soil losses and soil nutrient losses significantly. The water reduce by 10.51%, soil by 67.09%, available nitrogen, phosphorus and potassium in soil reduce by 67.34%, 66.46%, 66.73%, respectively, organic matter in soil reduced by 68.13%. It was an effective way to farm according contour lines for preventing soil and water erosion.

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