| Estimation of soil carbon density and spatial distribution characteristics of typical plants at the Minqin new energy wind farm |
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| DOI：10.7606/j.issn.1000-7601.2025.03.24 |
| Key Words: arge wind farm ecological impact biomass carbon density spatial distribution |
| Author Name | Affiliation | | SONG Dacheng | Gansu Hexi Corridor Forest Ecosystem National Research Station, Gansu Desert Control Research Institute, Lanzhou, Gansu 730070, China
College of Forestry, Gansu Agriculture University, Lanzhou, Gansu 730070, China | | LI Guangyu | Gansu National Park Monitoring Center, Lanzhou, Gansu 730030, China | | FAN Lin | Datang Gansu Power Generation Co., LTD, Lanzhou, Gansu 730050, China | | XU Jingbai | Datang Gansu Power Generation Co., LTD, Lanzhou, Gansu 730050, China | | WU Hao | Gansu Hexi Corridor Forest Ecosystem National Research Station, Gansu Desert Control Research Institute, Lanzhou, Gansu 730070, China | | ZHAO Peng | Gansu Hexi Corridor Forest Ecosystem National Research Station, Gansu Desert Control Research Institute, Lanzhou, Gansu 730070, China | | HAN Shenghui | Gansu Hexi Corridor Forest Ecosystem National Research Station, Gansu Desert Control Research Institute, Lanzhou, Gansu 730070, China | | ZHANG Xiaojuan | Gansu Hexi Corridor Forest Ecosystem National Research Station, Gansu Desert Control Research Institute, Lanzhou, Gansu 730070, China | | WANG Yuqi | Gansu Hexi Corridor Forest Ecosystem National Research Station, Gansu Desert Control Research Institute, Lanzhou, Gansu 730070, China | | WANG Zhongwen | Gansu Hexi Corridor Forest Ecosystem National Research Station, Gansu Desert Control Research Institute, Lanzhou, Gansu 730070, China | | MA Quanlin | College of Forestry, Gansu Agriculture University, Lanzhou, Gansu 730070, China
Gansu Research Academy of Forestry Science and Technology, Lanzhou, Gansu 730020, China | | JIN Chengdong | Gansu Lianhuashan Nature Reserve Administration, Linxia, Gansu 731599, China |
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| Abstract: |
| To investigate the patterns of vegetation and soil carbon density distribution in large\|scale new energy wind farms and their influencing factors, as well as to uncover the driving mechanisms by which wind farm operations affect the local ecosystem carbon cycle, this study conducted vegetation and soil surveys and sampling across 45 plots within five distinct monitoring areas (upwind, center, downwind, edge, and external control) of the Minqin Hongshagang New Energy Wind Farm. Based on carbon content measurements from the samples, the impact of wind farm operations on biomass accumulation of typical plant communities and soil carbon density distribution in different monitoring areas was estimated. The results showed: (1) Wind farm operations significantly altered the structure of regional plant communities, thereby increasing the variability in plant carbon density across different monitoring areas. The average plant carbon density in the external control area was about 1.63 t·hm-2, while the average within the various internal areas of the wind farm was about 0.69 t·hm-2. (2) The impact of wind farm operations on soil organic carbon density was not significant, with all monitoring areas maintaining similar levels, and the average soil organic carbon density overall remained between 21.45 and 29.67 t·hm-2. (3) Using a soil depth of 40 cm as a node, the vertical distribution of soil organic carbon density in the 0~100 cm range of different monitoring areas generally showed an increase with depth in shallow soils (<40 cm) and a fluctuating decrease followed by an increase in deeper soils (>40 cm). (4) Total plant biomass is a key factor affecting both plant carbon density and soil organic carbon content in the study area. The findings are expected to provide a scientific foundation for the efficient operation of new energy wind farms in arid regions, contribute to addressing global climate change, and support national ecological security decisions. |
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