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侵入性框架来预测在红树林中外来Sonneratia的早期殖民:对沿海地区管理的影响

Lin Zhang¹, Zifeng Luo¹, Xianxian Guo²

¹Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, College of the Environment and Ecology, Xiamen University, Fujian, 361102, China; Zhangjiang Estuary Mangrove Wetland Ecosystem Station, National Observation and Research Station for the Taiwan Strait Marine Ecosystem, Xiamen University, Zhangzhou, 363000, China.

Journal of environmental management

|June 18, 2024

概括

这项研究简化了生态系统的入侵性,用于预测在红树林中的外来植物殖民. 较低的水文连接 (没有道的路径长度) 和植被生物量 (增强的植被指数) 表明更容易受到像Sonneratia apetala.等物种的入侵.

科学领域:

生态生态学生态生态学
侵袭性物种管理侵袭性物种管理
沿海的生态系统

背景情况:

生态系统的入侵性,或易受入侵,对于管理生物入侵至关重要,但难以量化.
现有的方法因依赖特定的生态系统变量而受到限制,这阻碍了对外来物种控制的实际应用.
为了有效的管理框架,需要简化对可测量的组件的侵入性.

研究的目的:

为了简化入侵性到可测量的组件来预测外来植物的早期殖民.
制定一个适用的框架来评估红树林的入侵性.
确定沿海红树林生态系统中外来物种的关键生态.

主要方法:

利用非通道路径长度 (UPL) 来评估红树林的水文连接性和可访问性.
使用增强植被指数 (EVI),与地表生物质相关联,以评估竞争强度.
开发了一个四象限概念模型,集成EVI和UPL对外来植物殖民的影响,通过后勤回归验证.

主要成果:

与未被殖民地区相比,被殖民地区的EVI和UPL值明显较低 (P < 0.001).
后勤回归证实了成功的Sonneratia apetala殖民概率与EVI和UPL之间的显著负相关性 (P < 0.001).
确定了外来物种的四个关键位置:外部的泥平原,潮溪,树冠间隙和废弃的水产养殖池.

结论:

这个概念模型有效地预测了沿海红树林中早期的外来植物殖民.
该研究提供了对外来物种生态过程和入侵管理的实用见解.
展示了入侵性概念的实际应用,用于在脆弱的沿海地区管理外来物种.

关键词:

沿海湿地是沿海的湿地.生态恢复生态恢复水文连接性水文连接性控制入侵的控制入侵.红树林生态系统红树林生态系统

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