长江科学院院报 ›› 2024, Vol. 41 ›› Issue (8): 55-62.DOI: 10.11988/ckyyb.20231059

• 水土保持与生态修复 • 上一篇    下一篇

北方土石山区薄土坡耕地石坎反坡阶措施减流减沙效益分析

姜宇(), 程宏远()   

  1. 中水珠江规划勘测设计有限公司 浙江分公司,杭州 310000
  • 收稿日期:2023-09-30 修回日期:2024-02-04 出版日期:2024-08-01 发布日期:2024-08-13
  • 通讯作者: 程宏远(1992-),男,安徽歙县人,工程师,硕士,主要从事水工结构设计工作。E-mail:
  • 作者简介:

    姜 宇(1990-),女,浙江安吉人,工程师,主要从事水利工程设计工作。E-mail:

Benefits of Stone-sill Reverse-slope Terraces to Soil and Water Conservation on Thin-soiled Sloping Farmland in Earthy-Rocky Mountainous Area of North China

JIANG Yu(), CHENG Hong-yuan()   

  1. Zhejiang Branch of China Water Resources Pearl River Planning Surveying & Designing Co., Ltd., Hangzhou 310000, China
  • Received:2023-09-30 Revised:2024-02-04 Published:2024-08-01 Online:2024-08-13

摘要:

为解决我国北方土石山区薄土坡耕地水土流失问题,通过布设标准径流小区来研究石坎反坡阶措施的水土保持综合效果。结果表明:石坎反坡阶措施对于坡耕地水土流失调控效果显著,该措施相较于等高耕作措施,坡面径流削减率和泥沙削减率分别达到68.57%和94.29%;石坎反坡阶措施在提高坡面土壤水分含量、提高坡面水分分布均匀度方面能够发挥出良好的作用,该措施相较于等高耕作措施,坡面总体土壤水分含量提高了7.78%;石坎反坡阶措施能够显著提高坡耕地的农作物产量,相较于常规等高耕作措施,玉米产量提高了12.69%。石坎反坡阶的设计及作用效果研究,丰富了我国北方土石山区薄土坡耕地的水土流失治理途径。

关键词: 石坎反坡阶, 薄土坡耕地, 水土流失, 北方土石山区, 径流, 土壤水分

Abstract:

To address the issue of soil erosion on sloping farmland with thin soils in the earth-rocky mountainous area of north China, we established standard runoff plots to investigate the comprehensive soil and water conservation effectiveness of stone-sill reverse-slope terraces. Our findings revealed a significant control effect on water and soil loss: runoff and sediment were reduced by 68.57% and 94.29%, respectively, compared to contour farming. Stone-sill reverse-slope terraces effectively increased soil moisture content and ensured a more uniform distribution of water across the slopes. The total soil moisture content increased by 7.78% compared to contour farming plots. Additionally, the stone-sill reverse-slope terraces markedly enhanced crop yields on sloping farmland; corn yields increased by 12.69% compared to contour farming. Our design and study of the stone-sill reverse-slope terrace contribute to the soil and water conservation methods for thin-soiled sloping farmland in north China’s earth-rocky mountainous areas.

Key words: stone-sill reverse-slope terrace, sloping farmland with thin soil layer, soil and water loss, earthy-rocky mountainous areas of north China, runoff, soil moisture

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