Estimating the Impact of Ecological Migrants on the South-to-North Water Diversion in China
| Autor: | Xiaoyan Liu, Mengdi Li, Yadi Run, Yaochen Qin, Oliva Gabriel Chubwa, Nan Li, Zhifang Shi, Yaoping Cui |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
China
Conservation of Natural Resources Earth Planet Health Toxicology and Mutagenesis Article South-to-North Water Diversion Gross profit Beijing socioeconomic effect GEE Ecosystem Ecology Aquatic ecosystem Public Health Environmental and Occupational Health Water ecological migrants Subsidy water ecosystem expansion Water diversion Geography Water security Value (economics) Medicine |
| Zdroj: | International Journal of Environmental Research and Public Health, Vol 18, Iss 12295, p 12295 (2021) International Journal of Environmental Research and Public Health; Volume 18; Issue 23; Pages: 12295 International Journal of Environmental Research and Public Health |
| ISSN: | 1661-7827 1660-4601 |
| Popis: | The South-to-North Water Diversion (SNWD) provides significant benefits in facilitating water security and improving ecology in northern China. However, few studies have estimated the water value of the SNWD and the corresponding subsequent subsidies of the ecological migrants in Xichuan County displaced by the project. Based on the Google Earth Engine (GEE), this study analyzed the water ecosystem changes in Xichuan County in 2000–2020 and valued the water transfer of the SNWD. We calculated the water cost, the water value of the trunk line project, and the four provinces (Hebei, Henan, Beijing, and Tianjin) of CNY 4.04, 39.64, and 120.93 billion, respectively, and the proportion of the three was 1:10:30 during 2014–2020. The water ecosystem area showed a rapid increase when the SNWD became operational since the end of 2014. The subsequent annual subsidy gap of ecological migrants was CNY 0.84 billion, which only accounted for 4.31% of the gross profit of SNWD. Our results imply that relevant water sectors have sufficient profits to support corresponding subsequent subsidies for ecological migrants. Ecological migrants are a major challenge for water transfer projects. Overall, this study fills a gap of interactions between subsequent policies and ecological migrants and provides a typical case for managing the migration problem caused by sustainable water management worldwide. |
| Databáze: | OpenAIRE |
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