复杂性-功能关系在不同的环境条件下有所不同
Mariana Mayer-Pinto1, Amelia Caley1, Antony M Knights2
1Centre of Marine Science and Innovation, Evolution and Ecology Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, Australia.
Journal of environmental management
|February 22, 2024
概括
在人造沿海结构中增强息地复杂性可以提高过和呼吸,但降低生产力. 这些生态工程效应在全球范围内有所不同,需要在特定情况下应用绿化灰色基础设施 (GGI) 战略.
科学领域:
- 海洋生态海洋生态学
- 沿海工程 沿海工程
- 恢复生态学 恢复生态学
背景情况:
- 息地复杂性是生物多样性和生态系统功能的关键,特别是在退化或人工息地.
- 灰色基础设施绿化 (GGI) 方法越来越多地用于增强人工沿海结构.
- 了解GGI对超越生物多样性的生态系统功能的影响至关重要.
研究的目的:
- 评估操纵物理和生物生态息地复杂性如何影响生态系统在潮间人工基板上的功能.
- 评估息地复杂性对过,生产力,呼吸和相关社区的影响.
- 确定这些影响在生态工程息地中的全球变异性.
主要方法:
- 使用的定居地具有不同的物理复杂性 (平面,纹) 和生物复杂性 (无种子,有双种子).
- 评估过率,净/毛初级生产率 (NPP/GPP) 和社区呼吸率 (CR).
- 在六个全球地点监测过器料的丰富性,宏覆盖面和加密鱼的使用情况.
主要成果:
- 增加的物理和生物复杂性 (5厘米种子) 显著增强过和社区呼吸.
- 更高的复杂性导致所有地点的毛和净初级生产率下降.
- 没有观察到对加密鱼或宏藻覆盖的一致影响;本地变化很大.
结论:
- 灰色基础设施的绿化 (GGI) 涉及息地复杂性的干预措施在生态系统功能 (如生产力和过) 之间存在权衡.
- GGI的生态影响高度依赖于环境,并且在不同的环境环境中存在显著差异.
- 不建议在全球范围内统一应用GGI策略;对于有效的恢复,特定地点的评估是必不可少的.
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