Effect of Vegetation Carpet on Runoff and Sediment Yield of Loess Slope in Hilly-Gully Loess Region of Qingshuihe County, Inner Mongolia

GUO Yu; WANG Shusen; MA Yingmei; XU Jun; LI Guojing; LI Guang; WANG Shaohua; MENG Fanxu; ZHANG Ping; ZHANG Na

doi:10.13870/j.cnki.stbcxb.2019.06.009

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Effect of Vegetation Carpet on Runoff and Sediment Yield of Loess Slope in Hilly-Gully Loess Region of Qingshuihe County, Inner Mongolia

更新时间：2025-03-12

- Effect of Vegetation Carpet on Runoff and Sediment Yield of Loess Slope in Hilly-Gully Loess Region of Qingshuihe County, Inner Mongolia
- Vol. 33, Issue 6, Pages: 61-71(2019)
- 作者机构：
  
  1. 内蒙古农业大学沙漠治理学院, 荒漠生态系统保护与修复国家林业局重点实验室, 内蒙古自治区风沙物理与防沙治沙工程重点实验室,呼和浩特,010018
  2. 内蒙古农业大学草原与资源环境学院,呼和浩特,010018
  3. 内蒙古农业大学生命科学学院, 内蒙古自治区植物逆境生理与分子生物学重点实验室,呼和浩特,010018
  4. 内蒙古蒙树生态环境有限公司,呼和浩特,010018
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2019.06.009
  CLC：
- Published：2019
- 稿件说明：
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GUO Yu, WANG Shusen, MA Yingmei, et al. Effect of Vegetation Carpet on Runoff and Sediment Yield of Loess Slope in Hilly-Gully Loess Region of Qingshuihe County, Inner Mongolia[J]. 2019, 33(6): 61-71.
DOI：

GUO Yu, WANG Shusen, MA Yingmei, et al. Effect of Vegetation Carpet on Runoff and Sediment Yield of Loess Slope in Hilly-Gully Loess Region of Qingshuihe County, Inner Mongolia[J]. 2019, 33(6): 61-71. DOI： 10.13870/j.cnki.stbcxb.2019.06.009.

摘要

黄土丘陵沟壑区地形复杂，坡陡沟深，水土流失严重，为缓解黄土丘陵沟壑区边坡水土流失严重的问题，以内蒙古清水河县段兰窑流域黄土边坡为研究区，采用3种植被毯措施：豆科植物和禾本科植物混播（以下简称豆禾混播）比例为1：1+椰丝毯（L1G1）、豆禾混播比例为1：2+椰丝毯（L1G2）和豆禾混播比例为2：1+椰丝毯（L2G1）在30°，35°，40°和45°边坡设置径流小区，分析该区域不同自然降雨条件和坡度对边坡产流与产沙量的影响。结果表明：（1）铺设植被毯可以有效的减少黄土边坡产流产沙量。（2）当降雨强度为1~5 mm/h时，各植被毯措施的产流量和产沙量随着坡度的增加呈上升趋势；当降雨强度为30~50 mm/h时，各植被毯措施的产流量和产沙量随着坡度的增加呈先增加后减小的趋势，坡度为40°时出现峰值。（3）3种植被毯措施的减流效益大小依次为L1G1（75.11%） > L1G2（49.3%） > L2G1（48.11%）；3种植被毯措施减沙效益大小依次为L1G1（87.96%） > L1G2（60.96%） > L2G1（58.95%）。说明在黄土丘陵沟壑区L1G1是一种有效的边坡水土流失治理措施。

Abstract

In order to alleviate the serious soil and water loss of slope in Hilly-Gully Loess Region

this paper took DuanLanyao drainage loess slope in Qingshuihe County of Inner Mongolia as the research area

and adopted three vegetation carpet measures:the mixed planting of Legumes and Gramineae plants with a ratio of 1:1+coconut carpet (L1G1)

the mixed planting ratio of 1:2 + coconut carpet (L1G2)

and the ratio of 2:1 + coconut carpet (L2G1). Runoff plots were set up with slope gradients of 30°

35°

40° and 45°. The effects of different natural rainfall conditions and slopes on slope runoff and sediment yield were analyzed. The results showed that:(1) Vegetation carpet could effectively reduce the runoff and sediment yield of Loess slope. (2) When the rainfall intensity was 1~5 mm/h

the runoff and sediment yield of vegetation carpet measures increased with the increase of slope gradients; when the rainfall intensity was 30~50 mm/h

the runoff and sediment yield of vegetation carpet measures increased first and then decreased with the increase of slope gradients

and the peak value appeared when the slope was 40°. (3) The benefits of three vegetation carpet measures were L1G1 (75.11%) > L1G2 (49.3%) > L2G1 (48.11%) and L1G1 (87.96%) > L1G2 (60.96%) > L2G1 (58.95%)

respectively. It could be concluded that L1G1 was an effective measure to control soil and water loss of slope in the Hilly-Gully Loess Region.

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references

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