息地质量评估和沿海盐沼湿地的模式模拟
Yuting Huang1, Guanghui Zheng2, Xianglan Li1
1State Key Laboratory of Remote Sensing Science, College of Global Change and Earth System Science, Faculty of Geographical Science, Beijing Normal University, Beijing, China.
The Science of the total environment
|June 15, 2024
概括
沿海盐沼是重要的碳汇. 这项研究揭示了江苏延自然保护区的息地变化,显示了Suaeda salsa的丧失和Spartina/Phragmites的增加,影响了息地质量. 保护工作可以恢复这些关键的湿地生态系统.
科学领域:
- 湿地生态学湿地生态学
- 遥感 遥感 遥感 遥感
- 生态建模 生态建模
背景情况:
- 沿海盐在碳捕获和生物多样性保护方面发挥着至关重要的作用.
- 江苏延湿地稀有鸟类国家自然保护区在维持息地质量和模式方面面临着挑战.
研究的目的:
- 分析2017-2022年江苏延自然保护区的息地模式演变和质量变化.
- 在不同的场景下 (自然发展和政府控制) 模拟未来的息地模式和质量.
- 为有效保护和管理沿海盐沼湿地提供科学见解.
主要方法:
- 使用U-Net模型和Sentinel-2卫星数据进行息地模式演变分析.
- 使用InVEST模型进行息地质量评估.
- 在不同的场景下使用PLUS模型进行未来息地模式模拟.
主要成果:
- 在2017-2022年期间,Suaeda salsa息地减少了2077.61公,而Spartina alterniflora和Phragmites australis息地增加了.
- 总体而言,息地碎片化下降,规范化增强,但息地质量从0.75降至0.72.
- 模拟预测在自然发展下进一步下降至0.71,其中有显著的Suaeda salsa转化为Phragmites australis.
结论:
- 息地质量的恶化与Suaeda salsa的丧失和Phragmites australis的扩张有关.
- 政府的干预可以显著改善息地质量并恢复Suaeda salsa的息地.
- 结果支持基于证据的水鸟息地和沿海湿地管理的保护规划.
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