ZHANG Meng, GUAN Hongjie, WANG Ruoshui, et al. Effects of Soil and Water Conservation Measures on Runoff and Sediment Yield on Slopes of Miyun Chestnut Forest[J]. 2023, 37(5): 130-136.
DOI:
ZHANG Meng, GUAN Hongjie, WANG Ruoshui, et al. Effects of Soil and Water Conservation Measures on Runoff and Sediment Yield on Slopes of Miyun Chestnut Forest[J]. 2023, 37(5): 130-136. DOI: 10.13870/j.cnki.stbcxb.2023.05.016.
Effects of Soil and Water Conservation Measures on Runoff and Sediment Yield on Slopes of Miyun Chestnut Forest
Taking the chestnut forest in Miyun District of Beijing as the research object
plant measures
engineering measures
and plant + engineering measures were set up to analyze the impact of different single and combined soil and water conservation measures on the runoff and sediment yield and the relationship between runoff and sediment on the slope
with the aim of providing scientific basis for the formulation of soil and water conservation measures in chestnut forests in Miyun District. The results showed that in terms of plant measures
the runoff and sediment reduction rate of Selaginella tamariscina treatment was 62.8% and 88.3%
respectively. The reduction effect of runoff and sediment of S. tamariscina treatment was better than that of coconut silk blanket
Cynodon dactylon and Zoysia japonica treatment. In terms of engineering measures
the runoff and sediment reduction rate of level terrace treatment was 83.2% and 92.9%
respectively
which was higher than that of fish-scale pits treatment. In terms of the combined measures
the runoff and sediment reduction rate of level terrace + S. tamariscina treatment was 86.7% and 96.1%
respectively
indicating the best effect of soil erosion prevention and control. The impact of different measures on runoff and sediment also depended on rainfall amount and intensity. In summary
the combined measures plant + engineering measures had slightly stronger control effects of runoff and sediment than engineering measures
but the difference was not significant. Therefore
on the basis of comprehensive consideration of economic and ecological benefits
it was recommended that engineering measures should be adopted to prevent and control soil and water loss in chestnut forests in this study area. Specifically
level terrace should be taken as the main soil and water conservation measures in the study area.
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