红树林植被结构是否反映了人类对生态系统产品和服务的利用?
Frederick Asante1,2, Jean Hugé1,3,4, Noble K Asare5,6
1Laboratory of Systems Ecology and Resource Management, Department of Organism Biology, Faculty of Sciences, Université Libre de Bruxelles - ULB, B-1050 Brussels, Belgium.
iScience
|May 31, 2023
概括
沿海社区依赖红树林生态系统服务 (ES). 加纳面临的高收获压力.
科学领域:
- 生态与自然保护学
- 沿海生态系统管理
背景情况:
- 发展中国家的沿海社区严重依赖红树林生态系统服务 (ES).
- 世界各地的红树林生态系统面临着人类活动和环境变化带来的重大威胁.
研究的目的:
- 为了研究利用红树林生态系统服务和在加纳安科布拉流域的红树林森林结构之间的关系.
- 评估采伐实践对红树林复杂性和再生的影响.
主要方法:
- 进行植被调查以分析森林结构,包括树木种植和树苗密度.
- 在五个社区进行了采访,以了解收获的红树林木材的主要用途.
- 评估了选择性伐木,树枝砍伐,水压力和树密度对红树林结构的影响.
主要成果:
- 选择性伐木,树枝砍伐,水压力和黄金的密度显著影响了树木和树苗密度.
- 大约98%的被采伐的红树林木被用于柴火,88%用于建筑.
- 收获压力较高的地区表现出较少复杂的植被结构,较低的树木/小树密度和较少的带种子树木,与不太受干扰的地区相比.
结论:
- 由于社区需求,目前的红树林采摘法规往往不被严格执行.
- 了解这些影响对于制定有效的管理策略至关重要.
- 改善管理可以帮助满足社区需求,同时减少对脆弱红树林生态系统的压力.
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