[1]ZHANG Yuyang,NIE Shihao,CAI Guoqiang,et al.Investigation and Simulation on the Effect of Vegetative Filter Strip on Surface Runoff[J].Research of Soil and Water Conservation,2022,29(02):36-42.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
29
Number of periods:
2022 02
Page number:
36-42
Column:
Public date:
2022-03-20
- Title:
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Investigation and Simulation on the Effect of Vegetative Filter Strip on Surface Runoff
- Author(s):
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ZHANG Yuyang, NIE Shihao, CAI Guoqiang, SUN Zheng, ZONG Quanli
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(College of Resources and Environment, Qingdao Agricultural University, Qingdao, Shandong 266109, China)
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- Keywords:
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vegetative filter strip; Daguhe River; VFSMOD model; surface runoff
- CLC:
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P333
- DOI:
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- Abstract:
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In order to analyze and evaluate the effect of vegetation buffer zone on surface runoff quantitatively, field investigation and sampling of typical vegetation on both banks of Daguhe River Basin were carried out, and the function of vegetation buffer zone was discussed by using VFSMOD model. Based on the field investigations, the strip parameters of 8 typical locations in the Daguhe River were obtained. The results show that the vegetative filter strip in Daguhe River Basin is mainly composed of tall trees such as Populus L. and Pinus shrub., plants such as Apocynum venetuml and Suaeda glauca Bunge, and herbaceous plants such as Zoysia japonica Steud and Artemisia argyi Levl. et Van; these plants have a high coverage on the surface of land, and can effectively intercept the sediment and increase the surface roughness, which has a good control effect on the surface runoff. The VFSMOD model is used to simulate the surface runoff control effect of four buffer zones which are located in Beichahe Village, Renzhao Town Barrage, Chengjiaxiaoli Village and Houlujia Village. The results show that the four vegetation buffer zones can intercept the surface runoff produced by rainfall intensities below 0.8, 0.7, 0.7 and 0.4 mm/min, respectively; when the width of the vegetation buffer zone and the width of the source area change at the same time, when the widths of the four vegetation buffer zones reach 8 m, 20 m, 1 m and 5 m respectively, the sediment interception rate reaches more than 0.95. Therefore, the existing vegetation buffer zones on both banks of Daguhe River can play the good role in retaining and controlling sediment.