Zan Yuting, Xi Tonghang, Wu Zhiling, et al. Effects of Different Plant Configuration Patterns on Flow and Sediment Reduction of Artificial Slope[J]. Bulletin of Soiland Water Conservation, 2022, 42(3): 1-7.
DOI:
Zan Yuting, Xi Tonghang, Wu Zhiling, et al. Effects of Different Plant Configuration Patterns on Flow and Sediment Reduction of Artificial Slope[J]. Bulletin of Soiland Water Conservation, 2022, 42(3): 1-7. DOI: 10.13961/j.cnki.stbctb.2022.03.001.
Effects of Different Plant Configuration Patterns on Flow and Sediment Reduction of Artificial Slope
[Objective] The impacts of different plant patterns and configuration proportions on soil and water loss of an artificial slope were analyzed in order to provide reference for artificial slope vegetation restoration.[Methods] Natural rainfall from January to December 2019 was measured and the runoff and sediment yield characteristics for runoff plots was simulated using four different vegetation patterns to determine the runoff and sediment reduction benefits of different vegetation patterns.[Results] ① Total rainfall during the observation period was 1 053 mm
and total rainfall duration was 845.1 hours. Rainfall in July was the largest
and rainfall in February had the longest duration. Rainfall was concentrated in January to July
and classified mainly as moderate rain
heavy rain
and rainstorm. ② The variation in runoff yield per rainfall was large
and the variation in monthly and seasonal runoff yield was also large
mainly occurring in February-April and July
in events classified as moderate
heavy rain
and rainstorm. ③ The sediment yield of field rainfall
monthly rainfall and seasonal rainfall was very different. Sediment yield in March was the highest
and the sediment yield was concentrated in February-April and July
with frequent occurrences of moderate rain
heavy rain
and rainstorm events. ④ Compared with the flower-grass pattern
the shrub-grass pattern had the largest runoff reduction and the tree-grass pattern had the largest sediment reduction rate under each rainfall type. The tree-grass pattern had the largest sediment reduction rate
and the herb pattern had the largest runoff reduction rate under the monthly rainfall accumulation. The tree-grass pattern had the largest runoff and sediment reduction rate under the condition of accumulation of different rainfall classes and annual accumulation.[Conclusion] In the early stage of vegetation restoration
affected by the difference in vegetation coverage
the tree-grass pattern and the herb pattern had a higher rate of flow reduction and sediment reduction
and had better soil conservation benefits.
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references
Zhang L T, Gao Z L, Li Z B, et al.Downslope runoff and erosion response of typical engineered landform to variable inflow rate patterns from upslope[J].Natural Hazards, 2016, 80(2):775-796.
General Administration of Quality Supervision, Inspection and Quarantine of China.GB15774-2008, Calculation method of benefit in soil and water conservation[S].Beijing:China Standards Press, 2008.
Experimental Study of Runoff Processes on Bare Loess Hillslope
Influence of Rainfall on Loess Slope Stability
Soil Erosion Processes on Sloping Grassland in Heaven Lake Nature Reserve of Xinjiang Wei Autonomous Region
Effects of Sediment Reduction by Vegetation Restoration on the Loess Plateau
Rainfall Condition and Meteorological Warning on Geological Hazards in Shimian County,Sichuan Province
Related Author
WANG Zhan-li
HUANG Xin-hui
ZHANG Zhen-guo
NIU Zhen-hua
TIAN Feng-xia
ZHANG Shao hong
KANG Shun xiang
LI Yong hong
Related Institution
State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling District
College of Water Resources and Architectural Engineering, Northwest University of Agriculture and Forestry, Yangling
Tianchi Management Committee, Fukang
Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences