巨大的侵入性物种清除项目在中国沿海地区的生态影响
Guanpu Qi1, Lanxuan Li1, Haiyang Li1
1Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, School of Life Sciences, Fudan University, #2005 Songhu Road 10, Shanghai 200438, China.
Environmental science & technology
|October 1, 2024
概括
中国中国中国中国.
科学领域:
- 生态生态学 生态生态学
- 环境科学 环境科学
- 湿地生态学湿地生态学
背景情况:
- 盐沼湿地在生态上至关重要,但在全球范围内是脆弱的.
- 自20世纪70年代以来,侵入性Spartina alterniflora威胁着中国沿海的盐沼地区.
- 全国范围的搬迁项目的生态影响在很大程度上是未知的.
研究的目的:
- 在长江河口盐沼湿地 (YRESW) 中模拟未来的生态系统结构,功能和质量.
- 评估侵入性Spartina alterniflora移除场景的影响.
- 评估生态恢复项目的风险和好处.
主要方法:
- 利用遥感和现场数据进行模拟.
- 模拟了三个场景:没有拆除,自然再生后项目 (NRP) 和种植恢复后项目.
- 专注于长江河口盐沼湿地 (YRESW).
主要成果:
- 由于移除项目,Spartina alterniflora的入侵趋势被扭转了.
- 在NRP情景中,生态系统结构 (+107%的组成, +27%的配置) 和质量 (+10.5%) 显著增加.
- 植物恢复恢复了项目前碳储量的87%,但蓝色碳在两个项目场景下都减少了.
结论:
- 生态移除项目可以扭转入侵物种的趋势,改善湿地结构和质量.
- 风险评估对于涉及主导物种的生态项目至关重要.
- 恢复策略对碳捕获有不同的影响,突出了需要量身定制的方法.
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