[1]TIAN Xiumin,MA Chunxia,LU Xudong,et al.Impact of Microtopographic Reconstruction on Runoff and Sediment Yield and Vegetation of Large Waste Dump Platform[J].Research of Soil and Water Conservation,2021,28(03):74-82.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 03
Page number:
74-82
Column:
Public date:
2021-04-20
- Title:
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Impact of Microtopographic Reconstruction on Runoff and Sediment Yield and Vegetation of Large Waste Dump Platform
- Author(s):
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TIAN Xiumin1, MA Chunxia2, LU Xudong3, GUO Jianying1, ZHANG Tiegang1
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(1.Institute of Water Resources for Pastoral Area, Ministry of Water Resources, Hohhot 010020, China;2.Inner Mongolia Soil and Water Conservation Monitoring Station, Hohhot 010020, China;3.Baotou Water and Soil Conservation Workstation, Baotou, Inner Mongolia 014030, China)
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- Keywords:
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waste dump platform; microtopographic reconstruction; generation of runoff and sediment; species diversity
- CLC:
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S157.2
- DOI:
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- Abstract:
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The effective methods to control the water and soil erosion were explored to improve the surface microenvironment in terms of the weaknesses on governing the large waste dump platform. Different microtopographic reconstruction and plant measures for large waste dump platforms were studied by using the runoff plot observation facilities to conduct continuous observation during the generation process of runoff and sediment, and the phytoecological characteristics were also investigated. The results show that the flow reduction, erosion reduction and biodiversity in the large waste dump platform with microtopographic reconstruction and plant measures were more significant than that with single soil cover and planting measures; the annual runoff and sediment loads of communities with microtopographic reconstruction methods decreased year by year, and the flow reduction and erosion reduction rates of those combining the microtopographic reconstruction and plant measures were the highest, reaching up to 62.03% and 88.81%, respectively; the control effect of the generation of runoff and sediment was the best when the heavy rain occurred; compared with the single soil cover and planting measures, the runoff volume reduced by 72.6% and the sediment load by 90.4%; the protective effect of the combined microtopographic reconstruction measures and plant measures was the best, and the diversity, evenness and richness indexes were the highest, which were 2.35, 0.87 and 1.94, respectively. Reasonable combination of microtopography and plant measures can fully play the role in the restoration effect of the vegetation, effectively curbing water and soil erosion and creating a different microenvironment, and is one of the effective measures to deal with the ‘chronic disease' of the large waste dump platform.