Global impacts of dam expansion on land use and landscape pattern
文献类型：期刊论文
| 作者 | Xiao, Chiwei1,4; Fu, Xuan4,5; Xiang, Mingtao2; Chiaka, Jeffrey Chiwuikem3 |
| 刊名 | RESOURCES CONSERVATION AND RECYCLING
 |
| 出版日期 | 2026-04-01 |
| 卷号 | 229页码:108832 |
| 关键词 | Dam Land use change Landscape pattern Environmental impacts |
| ISSN号 | 0921-3449 |
| DOI | 10.1016/j.resconrec.2026.108832 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Dams are vital for water resource security and energy supply, yet they present a significant challenge to terrestrial ecosystems. Most existing studies focus on a single region, lacking comprehensive analysis of the impacts of various types of dams on land use and land cover change (LULC) and landscape patterns as well as their gradient effects at a global scale. This study systematically analyzed the impact of global dams on the surrounding environment within 5-km gradient buffer zones, utilizing data from 6763 dams constructed between 1984 and 2018 in the Global Dam Tracker (GDAT) and the GLC_FCS30D global 30 m LULC data (1985-2020), alongside land use dynamics and landscape pattern indices. The results showed that from 1984 to 2018, new dams were primarily built in developing countries in Asia (3277 dams) and Africa (2079 dams) in the last 35 years. The majority of these dams were built for irrigation (32%) and hydroelectric power (20%). The construction of these dams resulted in a 120% increase in impervious surfaces and a 6% deforestation rate within the 5-km buffer zone, and the integrated land use dynamicity in the near-dam zone (0-2 km) was significantly higher than in the far-dam zone. Among them, irrigation dams exhibited the steepest distance decay rates, indicating the strongest impact on the surrounding land-use dynamics. After 1995, there was an increase in landscape fragmentation (patch density (PD)) and Shannon's diversity index (SHDI) increased, while the aggregation index (AI) and mean patch area (AREA_MN) decreased. Our study provides a reference base for assessing the ecological effects of dams and managing them sustainably around the world. |
| URL标识 | 查看原文 |
| WOS关键词 | FINE CLASSIFICATION-SYSTEM ; CONSTRUCTION ; BIODIVERSITY ; DISTURBANCE ; PRODUCT ; CLIMATE ; INDEXES ; ENERGY ; TESTS |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001686229700001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/220956]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 |
| 通讯作者 | Xiao, Chiwei |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 2.Zhejiang Acad Agr Sci, Inst Digital Agr, Hangzhou 310021, Peoples R China; 3.Anambra Imo River Basin Dev Author, PMB 1301, Owerri, Nigeria 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 5.Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Xiao, Chiwei,Fu, Xuan,Xiang, Mingtao,et al. Global impacts of dam expansion on land use and landscape pattern[J]. RESOURCES CONSERVATION AND RECYCLING,2026,229:108832. |
| APA | Xiao, Chiwei,Fu, Xuan,Xiang, Mingtao,&Chiaka, Jeffrey Chiwuikem.(2026).Global impacts of dam expansion on land use and landscape pattern.RESOURCES CONSERVATION AND RECYCLING,229,108832. |
| MLA | Xiao, Chiwei,et al."Global impacts of dam expansion on land use and landscape pattern".RESOURCES CONSERVATION AND RECYCLING 229(2026):108832. |
入库方式： OAI收割
来源：地理科学与资源研究所
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