[1]NIE Huiying,FENG Hua,WANG Wenlong,et al.Characteristics of Erosion Environment and Soil and Water Losses Induced by Power Transmission and Transformation Project in Hilly Area[J].Research of Soil and Water Conservation,2022,29(02):50-56.
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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:
50-56
Column:
Public date:
2022-03-20
- Title:
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Characteristics of Erosion Environment and Soil and Water Losses Induced by Power Transmission and Transformation Project in Hilly Area
- Author(s):
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NIE Huiying1, FENG Hua2, WANG Wenlong1, FENG Jia2, PAN Mingjiu3, WU Huan4
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(1.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences, Ministry of Water Resources, Yangling, Shaanxi712100,China; 2.State Grid Zhejiang Power Co., Ltd., Hangzhou310007,China; 3.Economic Research Institute, State Grid Zhejiang Electric Power Co., Ltd., Hangzhou310020,China; 4.Northwest Electric Power Design Institute Co., Ltd., of China Power Engineering Consulting Group, Xi'an,710075,China)
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- Keywords:
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transmission and transformation line project; erosion unit; erosion environment; soil and water loss; soil and water conservation
- CLC:
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S157.1
- DOI:
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- Abstract:
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The power transmission and transformation project disturbs the ground and causes soil erosion during the construction process, and the soil and water losses under the complex natural conditions in the hilly area are particularly serious. In order to clarify the characteristics of soil and water loss in hilly areas, we took the power transmission and transformation project in hilly areas as the research object, and discussed soil and water loss characteristics and influencing factors in its erosion environment, different construction stages and different erosion units through data collection and field survey. The results show that: in the erosion dynamic system, the power transmission and transformation projects are mainly man-made disturbances; the tower base area and the station area, construction roads and spoil(slag)yards are the main erosion units of the power transmission and transformation projects; the amount of soil and water loss during the construction period can reach 1.3~16.1 times of that in the natural recovery period, the erosion modulus during the construction period is 1.5~25.3 times of that in the natural recovery period; the proportion of soil and water loss during the construction period of the station area and tower base area is higher than that of other erosion units, and the soil erosion modulus in the hilly area is greater than the plain area, and is 1.2~1.9 times of that in the plain area. In many construction areas, the focus is on substation construction, tower foundation excavation, and temporary roads for line construction. The emphasis is on the prevention and control of soil and water loss in power transmission and transformation projects in hilly areas, and soil and water conservation projects. The characteristics of soil and water loss in different construction periods and different erosion units of power transmission and transformation projects in hilly areas are obviously different. The allocation of soil and water conservation measures should be organically combined with engineering measures, plant measures and temporary measures.