Effects of Distribution Patterns of Tree Bare Roots on Slope Soil Erosion Under Simulated Rainfall

YANG Xiuchao; FANG Qian; YING Xiaoai; FANG Fayong; ZHAO Longshan

doi:10.13870/j.cnki.stbcxb.2022.04.002

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Effects of Distribution Patterns of Tree Bare Roots on Slope Soil Erosion Under Simulated Rainfall

更新时间：2025-03-12

- Effects of Distribution Patterns of Tree Bare Roots on Slope Soil Erosion Under Simulated Rainfall
- Vol. 36, Issue 4, Pages: 7-12(2022)
- 作者机构：
  
  1. 贵州大学林学院,贵阳,550025
  2. 中国林业科学研究院林业研究所,北京,100091
  3. 贵州大学土壤侵蚀与生态修复研究中心,贵阳,550025
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2022.04.002
  CLC： S157.1
- Published：2022
- 稿件说明：
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YANG Xiuchao, FANG Qian, YING Xiaoai, et al. Effects of Distribution Patterns of Tree Bare Roots on Slope Soil Erosion Under Simulated Rainfall[J]. 2022, 36(4): 7-12.
DOI：

YANG Xiuchao, FANG Qian, YING Xiaoai, et al. Effects of Distribution Patterns of Tree Bare Roots on Slope Soil Erosion Under Simulated Rainfall[J]. 2022, 36(4): 7-12. DOI： 10.13870/j.cnki.stbcxb.2022.04.002.

摘要

为探究喀斯特地区林木根系分布方式对坡面土壤侵蚀的影响，采用人工模拟降雨方法，研究林木根系3类分布方式：根系横坡方向局部裸露（横向）、根系顺坡方向局部裸露（顺向）、根系垂直坡面（垂直）的土壤侵蚀特征。降雨强度为75 mm/h，降雨历时为90 min，坡度为25°。结果表明：（1）降雨过程中，横向和垂直生长根系影响土壤入渗，壤中流和地下径流产流时间表现为顺向>横向>垂直；顺向坡面地表径流初始产流时间比横向和垂直坡面略有提前，但差异不显著（p>0.05）；（2）横向、顺向及垂直坡面地表径流总量大小表现为顺向>垂直>横向，壤中流与地下径流产流速率在降雨过程中缓慢增加，降雨停止后急剧减小；（3）林木根系3类分布方式坡面间的地表减沙效益表现为横向>垂直>顺向。综上所述，顺向坡面的汇流作用促使地表产流产沙增加，垂直坡面增加土壤降雨入渗并减少侵蚀，横向坡面对坡面径流泥沙的拦蓄作用最为明显。研究结果对认识喀斯特石漠化坡地土壤侵蚀机理和水土流失防治措施提供了参考。

Abstract

In order to explore the effects of tree root distribution pattern on slope soil erosion in karst area under rainfall conditions

using artificial rainfall simulation methods

soil erosion characteristics of three types of tree root distribution were studied. And the three tree root distribution patterns were partial bare surface in the direction of root transverse slope (Horizontal)

partial bare surface of root along slope (Oblique) and unexposed surface of root vertical slope (Vertical). The rainfall intensity was 75 mm/h

the rainfall duration was 90 min

and the slope was 25°. The results showed that:(1) During rainfall

roots of trees growing horizontally and vertically both affected soil infiltration. The generation time of mid-soil flow and underground runoff followed the order of Oblique>Horizontal>Vertica. The initial runoff generation time of surface runoff on Oblique slope was slightly earlier than that on Horizontal and Vertical slope

but the difference was not significant (p>0.05). (2) The total amount of surface runoff on Horizontal

Oblique and Vertical slopes followed the order of Oblique>Vertical>Horizontal. The flow velocity rate of the mid-soil flow and underground runoff increased slowly in the process of rainfall and decreased sharply after rainfall stopped. (3) The surface sediment reduction benefits of three types of forest root distribution patterns followed the order of Horizontal>Vertical>Oblique. In conclusion

the confluence effect of Oblique slope promoted the increasing of surface runoff and sediment yield

while the Vertical slope increased soil rainfall infiltration and reduced erosion

and the Horizontal slope had the most obvious effect on the retention of runoff and sediment on the slope. The results could provide a reference for understanding soil erosion mechanism and soil erosion control measures of karst rocky desertification slope land.

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references

李占斌, 朱冰冰, 李鹏.土壤侵蚀与水土保持研究进展[J].土壤学报, 2008, 45(5):802-809.

王世杰, 李阳兵, 李瑞玲.喀斯特石漠化的形成背景、演化与治理[J].第四纪研究, 2003, 23(6):657-666.

穆兴民.黄土高原土壤水分与水土保持措施相互作用[J].农业工程学报, 2000, 16(2):41-45.

Renard K G, Foster G R, Weesies G A, et al. Predicting soil erosion by water:A guide to conservation planning with the Revised Universal Soil Loss Equation (RUSLE)[M].United States:Agricultural Research Service, 1997.

杨青, 杨广斌, 赵青松, 等.喀斯特地区不同降雨和植被覆盖的坡面产流产沙特征[J].水土保持通报, 2020, 40(1):9-16.

Morgan R P C, Rickson R J. Slope stabilization and erosion control:A bioengineering approach[M].London:Taylor and Francis, 2003.

Weaver J E, Kramer J. Relative efficiency of roots and tops of plants in protecting the soil from erosion[J].Science, 1935, 82(2128):354-355.

张英虎, 牛健植, 朱蔚利, 等.森林生态系统林木根系对优先流的影响[J].生态学报, 2015, 35(6):1788-1797.

沙小燕, 李魁, 王文龙, 等.黄土高塬沟壑区草地沟头立壁土壤抗冲性特征[J].应用生态学报, 2022, 33(1):133-140.

刘定辉, 李勇.植物根系提高土壤抗侵蚀性机理研究[J].水土保持学报, 2003, 17(3):34-37, 117.

屈东旭, 吕刚, 翟景轩, 等.科尔沁沙地南缘不同林草措施根系对土壤抗冲性的影响[J].水土保持研究, 2020, 27(1):21-25.

孙丽萍, 王小丹.基于根系解剖结构的金沙江干热河谷土壤侵蚀速率估算[J].地理科学, 2012, 32(4):492-498.

Malik I, Matyja M. Bank erosion history of a mountain stream determined by means of anatomical changes in exposed tree roots over the last 100 years (BíláOpava River-Czech Republic)[J].Geomorphology, 2008, 98(1):126-142.

Mawodza T, Burca G, Casson S, et al. Wheat root system architecture and soil moisture distribution in an aggregated soil using neutron computed tomography[J].Geoderma, 2020, 359:113988-113998.

李焱秋, 戴全厚, 甘艺贤, 等.喀斯特裸坡地径流对降雨强度与坡度的响应[J].水土保持学报, 2019, 33(5):28-33.

张小全, 吴可红, Dieter M.树木细根生产与周转研究方法评述[J].生态学报, 2000, 20(5):875-883.

Rodrigo-Comino J, Seeger M, Iserloh T, et al. Rainfall-simulated quantification of initial soil erosion processes in sloping and poorly maintained terraced vineyards:Key issues for sustainable management systems[J].Science of the Total Environment, 2019, 660:1047-1057.

赵富王, 王宁, 苏雪萌, 等.黄土丘陵区主要植物根系对土壤有机质和团聚体的影响[J].水土保持学报, 2019, 33(5):105-113.

欧阳帅, 项文化, 陈亮, 等.南方山地丘陵区森林植被恢复对水土流失调控机制[J].水土保持学报, 2021, 35(5):1-9.

秦东远, 肖培青, 郝仕龙, 等.黄丘区野外坡面产流产沙过程对不同植被覆盖结构的响应[J].水土保持学报, 2019, 33(2):73-78.

李建兴, 何丙辉, 谌芸.不同护坡草本植物的根系特征及对土壤渗透性的影响[J].生态学报, 2013, 33(5):1535-1544.

Assouline S. Rainfall-Induced soil surface sealing[J].Vadose Zone Journal, 2004, 3(2):570-591.

邵一敏, 赵洋毅, 段旭, 等.金沙江干热河谷典型林草地植物根系对土壤优先流的影响[J].应用生态学报, 2020, 31(3):725-734.

Kajimoto J. Root system development of larch trees growing on Siberian Permafrost[M].Permafrost Ecosystems, 2010:303-330.

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