水土保持通报2025，Vol.45Issue(2)：211-222,294,13.DOI:10.13961/j.cnki.stbctb.2025.02.022
毛乌素沙地大型光伏电站对近地表微气象的影响
Effects of large-scale photovoltaic power stations on near-surface microclimate in Mu Us sandy land
摘要
Abstract
[Objective]The differences in near-surface micrometeorological characteristics inside and outside photovoltaic(PV)power plants were revealed,and the impact of large-scale PV power plant deployment on near-surface microclimate in Mu Us sandy land was evaluated,in order to provide a scientific basis for wind-sand control and ecological restoration in PV power plants.[Methods]Observational data were gathered from automatic weather stations to assess how the layout of photovoltaic power stations in the Mu Us sand land affects the near-surface microclimate.Microclimate elements(wind speed,wind direction,air temperature,relative humidity,and radiation)were compared between control points and various observation points within the station.[Results]① Compared to the control area,both types of photovoltaic arrays exhibited significant changes in wind direction at a height of 2 m,presenting a more monotonous pattern.②)The temperature within the photovoltaic array areas was reduced.The maximum temperature decreases recorded between and beneath the fixed adjustable photovoltaic panels were 0.92 ℃ and 0.97 ℃,respectively.In comparison,the horizontal,single-axis photovoltaic panels showed maximum temperature reductions of 2.24 ℃ and 2.46 ℃ between and beneath the panels,respectively.③ The relative humidity of the air in the photovoltaic array area increased,with the greatest increments occurring in the fixed adjustable photovoltaic area in December,where the inter-panel and under-panel areas increased by 3.77％and 2.31％,respectively.The horizontal,single-axis photovoltaic area experienced the largest increase in March,with inter-and under-panel areas rising by 15.86％and 15.44％,respectively.④ The impact of the photovoltaic arrays on radiation was predominantly observed beneath the panels,with maximum reductions in solar radiation beneath the fixed adjustable and horizontal,single-axis photovoltaic panels of 91.30％and 88.27％,respectively,and maximum reductions in photosynthetically active radiation of 91.06％and 82.29％,respectively.[Conclusion]The deployment of large-scale photovoltaic power stations can alter wind direction,reduce air temperature,increase relative humidity,and decrease surface solar radiation and photosynthetically active radiation.Notably,the horizontal,single-axis photovoltaic array outperformed the fixed adjustable photovoltaic array in terms of its capacity to lower temperature and increase humidity.关键词
光伏电站/空气温度/太阳辐射/光合有效辐射/毛乌素沙地Key words
photovoltaic(PV)power station/air temperature/solar radiation/photosynthetically active radiation/Mu Us sandy land分类
大气科学引用本文复制引用
李梦超,屈建军,谭立海,王靖淇,王彦希..毛乌素沙地大型光伏电站对近地表微气象的影响[J].水土保持通报,2025,45(2):211-222,294,13.基金项目
华能集团总部科技项目"干旱半干旱地区光伏电站对生态环境的影响机制及生态恢复技术研究及应用"(HNKJ21-H76) （HNKJ21-H76）
