Effects of Hedgerows on Runoff and Sediment Yield and Microtopography on Purple Soil Sloping Farmland

MA Xing1; WANG Wenwu1; ZHENG Jiangkun1

doi:10.13870/j.cnki.stbcxb.2017.06.014

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Effects of Hedgerows on Runoff and Sediment Yield and Microtopography on Purple Soil Sloping Farmland

更新时间：2025-03-12

- Effects of Hedgerows on Runoff and Sediment Yield and Microtopography on Purple Soil Sloping Farmland
- Vol. 31, Issue 6, Pages: 85-89(2017)
- 作者机构：
  
  1. 四川农业大学水土保持与荒漠化防治，四川省高校重点实验室,成都,611130
  2. 中国水利水电科学研究院，流域水循环模拟与调控国家重点实验室,北京,100048
  3. 水利部水土保持生态工程技术研究中心,北京,100048
  4. 遂宁水土保持试验站,四川,遂宁,629006
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2017.06.014
  CLC： S157.1
- Published：2017
- 稿件说明：
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MA Xing1, WANG Wenwu1, ZHENG Jiangkun1. Effects of Hedgerows on Runoff and Sediment Yield and Microtopography on Purple Soil Sloping Farmland[J]. 2017, 31(6): 85-89.
DOI：

MA Xing1, WANG Wenwu1, ZHENG Jiangkun1. Effects of Hedgerows on Runoff and Sediment Yield and Microtopography on Purple Soil Sloping Farmland[J]. 2017, 31(6): 85-89. DOI： 10.13870/j.cnki.stbcxb.2017.06.014.

摘要

基于遂宁水土保持试验站坡耕地2012—2016年次降雨和径流输沙数据，定量分析了自然降雨下植物篱对坡耕地产流产沙及微地形的影响。结果表明：植物篱小区总径流深是对照小区的80%～84%，总冲刷量是对照小区的34%～44%，植物篱减沙作用优于减流。对照小区（Ⅱ小区和Ⅴ小区）径流深、冲刷量与平均雨强、降雨量均极显著相关（P＜0.01）；植物篱小区（Ⅰ小区、Ⅲ小区和Ⅳ小区）径流深、冲刷量与平均雨强、降雨量均呈正相关，其中径流深与降雨量极显著相关。各雨型间产流产沙差异不显著，其中植物篱对A型雨（大雨强、短历时）减流减沙效果优于B型雨（中雨强、中历时）和C型雨（小雨强、长历时）。定植植物篱后，篱带前出现泥沙淤积带，15°香根草（Ⅰ小区）、10°香根草（Ⅲ小区）和10°新银合欢（Ⅳ小区）平均坡度分别演变为11.97°，7.73°和7.89°，香根草植物篱的效果较明显，植物篱使得坡耕地梯田化发展。

Abstract

Based on the data of individual rainfall

runoff and sediment yield of hedgerows sloping farmland from 2012 to 2016 in Suining Soil and Water Conservation Experimental Station

the effect of hedgerows on runoff and sediment yield and microtopography of sloping farmland was analyzed. The results showed that the total runoff depths of the hedgerows were 80% to 84% of the control plots. Meanwhile

the total sediment yields of the hedgerows were 34% to 44% of the control plots. Hedgerow’s effects on sediment yield were better than that on runoff. The runoff depths and sediment yield of the control plots (plot Ⅱ and plot Ⅴ) were significantly correlated with the average rainfall intensity and rainfall (P <0.01). In the hedgerows plots (plot Ⅰ

plot Ⅲ and plot Ⅳ)

the runoff depths and sediment yield were positively correlated with the average rainfall intensity and rainfall. Especially

there were highly significant correlations between runoff depths and rainfall. For three rainfall patterns

there were no significant differences in the runoff depths and sediment yield among different plots. The hedgerows effect on runoff and sediment reduction of rainfall A (short duration

heavy rainfall) was better than that of rainfall B (moderate duration

moderate rainfall) and rainfall C (long duration

light rainfall). After planting the hedgerows

there was sediment accumulation zone near hedgerow lines. The average slope of plot Ⅰ

plot Ⅲ and plot Ⅳ turned to 11.97°

7.73°

and 7.89° from 15°

10°

and 10°

respectively. Finally

hedgerows made sloping farmland benching.

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