Research on the Influence of No-till and Ploughing Measures on the Process of the Runoff and Sediment of Slope Farmland in Karst Region

FANG Rongjie1; 2; ZHU Xiaofeng1

doi:10.13870/j.cnki.stbcxb.2017.01.012

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Research on the Influence of No-till and Ploughing Measures on the Process of the Runoff and Sediment of Slope Farmland in Karst Region

更新时间：2025-03-12

- Research on the Influence of No-till and Ploughing Measures on the Process of the Runoff and Sediment of Slope Farmland in Karst Region
- Vol. 31, Issue 1, Pages: 68-73(2017)
- 作者机构：
  
  1. 桂林理工大学，广西环境污染控制理论与技术重点实验室,广西,桂林,541004
  2. 桂林理工大学，岩溶地区水污染控制与用水安全保障协同创新中心,广西,桂林,541004
  3. 华中农业大学资源与环境学院,武汉,430070
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2017.01.012
  CLC： S157.1
- Published：2017
- 稿件说明：
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FANG Rongjie1, 2, ZHU Xiaofeng1. Research on the Influence of No-till and Ploughing Measures on the Process of the Runoff and Sediment of Slope Farmland in Karst Region[J]. 2017, 31(1): 68-73.
DOI：

FANG Rongjie1, 2, ZHU Xiaofeng1. Research on the Influence of No-till and Ploughing Measures on the Process of the Runoff and Sediment of Slope Farmland in Karst Region[J]. 2017, 31(1): 68-73. DOI： 10.13870/j.cnki.stbcxb.2017.01.012.

摘要

为揭示不同耕作措施对喀斯特地区坡耕地产流产沙的影响，采用独立设计土仓、室内人工模拟降雨的方法，通过设定一定雨强下研究不同耕作措施对西南岩溶区裸坡耕地径流与土壤流失特征。结果表明：雨强为63 mm/h，坡度小于10°时，翻耕措施能够加快地下孔隙的产流时间，而免耕能够滞缓其产流，翻耕的产沙量为免耕的66%；当坡度大于10°时，翻耕措施能够延缓地下孔隙的产流时间，而免耕则加速其产流，翻耕的产沙量分别为免耕的16%和6%。雨强为100 mm/h，坡度小于10°时，随着坡度的增大，翻耕措施会加速地下孔隙流的汇流过程，免耕的产沙量是翻耕的41%；坡度大于10°时，翻耕措施能延缓地表径流的汇流过程，且翻耕的产沙量为免耕的68%和0.9%。同一坡度和雨强下，翻耕措施较免耕措施可减少土壤随径流流失。

Abstract

In order to reveal the influences on the runoff producing and sediment on the hillslope which were exerted by different tillage measures in Karst region

the researchers used independent designed soil storehouse and indoor simulated rainfall measures

set particular rainfall intensity to study the features of runoff and the soil loss of the naked slope farmland in Karst region. The results showed: When the rainfall intensity was 63 mm/h and the declivity was less than 10°

ploughing measures could decrease the time of runoff producing of underground pores

and no-till could slow down its runoff producing

and its sediment yield was 66% of no-till. Otherwise

it conversed when the declivity was greater than 10°

and the sediment yield of ploughing were 16% and 6% of no-till separately. When the rainfall intensity was 100 mm/h and the declivity was less than 10°

the ploughing measures could speed up the confluence process of surface runoff on slopes

and the sediment yield of no-till was 41% of ploughing. Otherwise

it conversed when the declivity was greater than 10°

and the sediment yield of ploughing were 68% and 0.9% of no-till separately. In the circumstance of the same declivity and rainfall intensity

ploughing measures could decrease the loss of soil with surface runoff.

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