[1]YANG Runze,XIAO Huijie,FENG Tianjiao,et al.Evaluation on Benefits of Different Soil and Water Conservation Measures Under Castanea mollissima Bl. Forest Around Miyun Reservoir[J].Research of Soil and Water Conservation,2022,29(06):28-35.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
29
Number of periods:
2022 06
Page number:
28-35
Column:
Public date:
2022-10-20
- Title:
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Evaluation on Benefits of Different Soil and Water Conservation Measures Under Castanea mollissima Bl. Forest Around Miyun Reservoir
- Author(s):
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YANG Runze1, XIAO Huijie1, FENG Tianjiao1, WANG Fenzhong2, ZHAO Zekun1,
GUO Zixuan1, WANG Shilei2, ZHU Junying1, LI Shifeng1
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(1.Key Laboratory of Soil And Water Conservation and Desertification Control of Ministry of Education, College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China; 2.Soil and Water Conservation Workstation, Miyun District, Beijing 101500, China)
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- Keywords:
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Castanea mollissima Bl.; soil erosion; soil and water conservation measures; configuration mode
- CLC:
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S157
- DOI:
-
-
- Abstract:
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In order to explore the soil erosion law of Castanea mollissima Bl. forest around Miyun Reservoir and the soil and water conservation measures suitable for local Castanea mollissima Bl. forest, the runoff plot method was used in this study. A total of 10 rainfall events occurred in August 2021 were selected as research samples. By comparing the response of sediment yield to rainfall factors under different water and soil conservation measures configuration, the benefits of soil and water conservation under different water and soil conservation measures configuration modes were evaluated, and the better soil and water conservation measures were selected. The results showed that:(1)Under the condition of vegetation arrangement only, the vegetation type of Selaginella tamariscina (P. Beauv.)Spring was the most important to reduce surface runoff and sediment transport, followed by the natural vegetation.(2)Under the condition of vegetation measures and engineering measures at the same time, the effect of sediment reduction on natural slope is the best when the engineering measures are the same and the vegetation measures are different. With different engineering measures and the same vegetation measures, the fish scale pit has the best effect on reducing flow.(3)Portulaca oleracea Linn. + fish scale pit and natural vegetation + fish scale pit had the best soil and water conservation benefits.(4)The most influential factor on sediment yield was rainfall, and the correlation coefficients with runoff and sediment yield were 0.533 and 0.557(p<0.01), respectively. In conclusion, the soil and water conservation measures such as planting Selaginella tamariscina (P. Beauv.)Spring and laying Portulaca oleracea Linn. + fish scale pit and natural vegetation + fish scale pit can be preferred in the soil and water conservation work of Castanea mollissima Bl. forest in Miyun Reservoir.