京津风沙源治理工程区土地利用/覆盖变化及生态系统服务价值响应
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Land use/cover change and its ecosystem service value response in the Beijing-Tianjin sandstorm source control project area
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图4. 1990—2018年区域沙地、草地与降水变化关系 |
Fig.4. Relationship between sandy land/grassland and the annual precipitation from 1990 to 2018 |
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