干旱区地理2026，Vol.49Issue(9)：1866-1876,11.DOI:10.12118/j.issn.1000-6060.2025.751
高寒草甸光伏建设区植被覆盖度与地表温度的时空响应及其恢复机制
Spatiotemporal dynamics of vegetation coverage and land surface temperature in alpine meadow photovoltaic construction areas and their restoration mechanisms:A case of Tala Beach,Qinghai
摘要
Abstract
The Qinghai Sanjiangyuan alpine meadow serves as a crucial national ecological barrier,characterized by a highly sensitive and fragile ecosystem.With the advancement of carbon peaking and carbon neutrality strate-gies,rapid expansion of photovoltaic projects in the region may induce ecological disturbances.Utilizing Senti-nel-2 and Landsat 8 remote sensing data along with meteorological records from 2016 to 2024,this study em-ployed comprehensive methods including the Sen-Mann-Kendall trend test and structural equation modeling(SEM)to systematically evaluate the spatiotemporal impacts and mechanisms of photovoltaic construction on vegetation coverage(FVC)and surface temperature(LST).Results indicate:(1)Photovoltaic construction signifi-cantly reduce FVC during construction phases,with gradual recovery thereafter;for instance,in the 2018 study ar-ea,the FVC difference decreased from-0.0675 to-0.0138.(2)Photovoltaic areas exhibit sustained cooling ef-fects during operation,with LST consistently lower than that in buffer areas,particularly pronounced in hot years.(3)The Hurst index demonstrates long-term positive sustainability of FVC in photovoltaic areas,indicating stable vegetation recovery potential.(4)SEM analysis reveals that photovoltaic construction indirectly promotes FVC recovery by reducing LST,while climate and topography influence vegetation growth through water-heat regula-tion.In summary,ecological restoration in alpine meadow photovoltaic construction areas is driven by microenvi-ronmental improvements,hydrothermal regulation,and positive vegetation feedback mechanisms,exhibiting a re-sponse pattern of short-term disturbance,medium-term recovery,and long-term stability.These findings provide scientific evidence for optimizing photovoltaic construction alongside ecological conservation in high-altitude re-gions.关键词
植被覆盖度/结构方程模型/生态调节/生态演变/光伏建设Key words
fractional vegetation coverage/structural equation modeling/ecological regulation/ecological evo-lution/photovoltaic construction引用本文复制引用
赵乐,施洋洋,刘馨璐,李从娟..高寒草甸光伏建设区植被覆盖度与地表温度的时空响应及其恢复机制[J].干旱区地理,2026,49(9):1866-1876,11.基金项目
新疆维吾尔自治区"天山创新团队"(2024D14014) （2024D14014）
乌鲁木齐市"红山科创英才"项目(B241012003) （B241012003）
新疆维吾尔自治区重大专项(2024A03010) （2024A03010）
中国华电集团有限公司科技项目(CHDKJ23-04-01-61)资助 （CHDKJ23-04-01-61）
