Advances in Earth Science ›› 2019, Vol. 34 ›› Issue (10): 1038-1049.

### Progress in the Research on the Impact of Wind Farms on Climate and Environment

Junxia Jiang 1, 2( ),Liwei Yang 1,Zhenchao Li 1,Xiaoqing Gao 1( )

1. 1. Northwest Institute of Eco-Environment and Resources/Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, Chinese Academy of Sciences，Lanzhou 730000, China
2. University of Chinese Academy of Sciences，Beijing 100049, China
• Received:2019-07-01 Revised:2019-09-15 Online:2019-10-10 Published:2019-12-05
• Contact: Xiaoqing Gao E-mail:jiangjx@lab.ac.cn;jiangjx@lzb.ac.cn;xqgao@lzb.ac.cn
• About author:Jiang Junxia (1985-), female, Lanzhou City, Gansu Province, Ph.D student. Research areas include land surface processes and climate resources research. E-mail: jiangjx@lab.ac.cn
• Supported by:
the National Key Research and Development Plan "Study on eco-climate effects and environmental impact assessment of wind and solar farms"(2018YFB1502800);The National Natural Science Foundation of China "Study on local climate effects caused by large wind farms"(41575112)

Junxia Jiang,Liwei Yang,Zhenchao Li,Xiaoqing Gao. Progress in the Research on the Impact of Wind Farms on Climate and Environment[J]. Advances in Earth Science, 2019, 34(10): 1038-1049.

Wind power has become one of the fastest growing renewable energy. With the large-scale deployment of wind farms in the world, people have started to pay attention to the impact of wind farms on the ecological environment and climate. This paper summarized the impact of wind farms on climate and ecological environment by investigating relevant literature: In the areas of wind farms, on the one hand, the set-up of wind turbines changes original aerodynamic roughness height and strengthens the dragging of the land surface against turbulence, directly affecting the turbulent motion of the boundary layer, resulting in the changes of intensity and pattern of material energy and water vapor exchange between land surface and near-surface atmosphere, further affecting the atmospheric circulation and climate. On the other hand, wind turbines convert the majority of the wind kinetic energy into electric energy, which produces the wake effect of the wind turbine. The budget patterns and spatial and temporal distribution of large-scale kinetic energy in the boundary layer are changed correspondingly, generating changes in various fluxes (heat flux, water vapor flux, etc.) in the atmosphere, which affect temperature, precipitation, and wind speed. Generally, the warming or cooling effect of wind farms on the near-surface is related to the stability of atmosphere. However, simulations in the global climate model showed that the average impact of wind farms on global climate is small, much smaller than the expected changes in greenhouse gas emissions and the interannual changes in natural climate.Wind power emits almost no carbon dioxide and pollutants. Compared with other traditional energy sources, it reduces water consumption but may generate some negative ecological impacts such as animal habitats, bird collisions, and noise, vision impact. However, some measures can be taken to mitigate these adverse effects.

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