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湿地的时空动态及其未来的多场景模拟在黄河三角洲,中国
Bowei Yu1, Yongge Zang2, Chunsheng Wu3
1Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
Journal of environmental management
|February 1, 2024
概括
黄河三角洲的湿地从1980年到2020年增长了709.29平方公里,其类型和位置发生了变化. 未来的保护场景显示,对湿地恢复和粮食生产的影响各不相同.
科学领域:
- 生态生态学 生态生态学
- 环境科学 环境科学
- 遥感 遥感 遥感 遥感
背景情况:
- 湿地是重要的全球生态系统,经常被称为"地球的脏".
- 黄河三角洲湿地由于多重压力而面临重大环境变化.
- 了解历史和未来的湿地动态对于保护至关重要.
研究的目的:
- 从1980年到2020年,分析黄河三角洲湿地的时空变化.
- 预测各种发展场景下的未来湿地变化 (2020-2030年).
- 评估湿地保护和恢复的不同场景的有效性.
主要方法:
- 利用遥感数据进行湿地变化的时空分析.
- 为了未来的预测,采用了补丁生成土地利用模拟 (PLUS) 模型.
- 使用整体准确性 (OA) 和优点图 (FOM) 评估模型性能.
主要成果:
- 从1980年到2020年,湿地总面积增加了709.29平方公里.
- 观察到显著的分歧变化:潮平面减少,而水库和池增加.
- 湿地中心发生了转移,人工湿地向西北移动,自然湿地向南移动,呈现出不同的阶段特征.
结论:
- 在模拟湿地变化方面,PLUS模型表现出高精度 (OA>83.48%,FOM>0.1164).
- 未来的预测表明,田和潮平地减少,但自然水,沼泽和水库/池在不同情景中增加.
- 湿地保护和和发展方案为黄河三角洲的湿地恢复和可持续土地利用提供了有希望的途径.
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