评估岛屿的生态风险及其驱动力,使用压力状态响应模型
Meina Xu1,2, Xiaochen Huang3,4, Jiajun Li2,5
1East China Sea Area and Island Center, Ministry of Natural Resources, Shanghai, 200136, China.
Scientific reports
|July 2, 2025
概括
岛屿生态风险评估对于可持续管理至关重要. 北长沙岛和苗岛发现中等风险,北长沙岛风险较高.
科学领域:
- 生态风险评估评估生态风险评估
- 管理岛屿生态系统的管理.
- 环境资源评估环境资源评估
背景情况:
- 岛屿是环境资源的重要来源,需要对可持续使用和保护进行生态状况评估.
- 有效的岛屿管理需要了解和减轻生态风险.
研究的目的:
- 为岛屿生态系统建立生态风险识别矩阵.
- 评估和量化北长沙岛和岛的生态风险.
- 为岛屿保护,恢复和空间开发提供数据.
主要方法:
- 利用压力状态响应模型来识别风险来源,受体和响应.
- 开发了一个生态风险识别矩阵,包括风险概率和生态系统脆弱性.
- 计算风险值和应用分级标准来确定岛屿生态系统风险水平.
主要成果:
- 北长沙岛的陆地生态系统和岛的潮间/沿海水域显示了中度的生态风险 (0.50).
- 北长沙岛的潮间和沿海水域由于水产养殖的敏感性而表现出更高的风险 (0.74).
- 苗岛的陆地生态系统风险较低 (0.40),表明生态问题潜力减少.
结论:
- 生态风险评估为岛屿保护和管理策略提供了必要的数据.
- 对于具有中等生态风险的地区,建议采取预防措施.
- 这些发现支持保护岛屿植物物种,生态系统保护和生态恢复工作.
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