Mapping and Modeling Land-Sea Nutrient Feedbacks to Enhance Island Ecosystem Resilience

绘制陆地-海洋养分反馈并建模以增强岛屿生态系统的复原力

• 批准号: 2696842
• 金额: --
• 依托单位: University of Oxford
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2696842
• 关键词: Mapping; Modeling; Land; Sea; Nutrient

Coastal seascapes are dynamic transitional zones susceptible to various anthropogenic disturbances operating and interacting across the land-sea interface. Local stressors in both terrestrial (e.g., land-use change, urbanization) and marine (e.g., pollution, overfishing) environments now coalesce with global stressors (e.g., ocean warming, acidification) to dramatically alter the form and function of seascapes, along with their ability to provide essential ecosystem goods and services on which coastal communities rely. Although human impacts on coastal seascapes have been evaluated with respect to species range shifts and biological invasions, food web rewiring, and biodiversity loss, there remain few published studies on the consequences of anthropogenic activities on the complex, multi-scale land-sea nutrient exchange pathways that underpin coastal ecosystem functioning. Studies illuminating the spatiotemporal scales and patterns of land-sea nutrient dynamics are urgently required to curb ongoing, rapid declines in ecosystem health, biodiversity, and resilience, particularly in 'open' coastal seascapes lacking discrete boundaries.

沿海景观是动态的过渡地带，容易受到各种人为干扰的影响，并在海陆界面上相互作用。陆地（如土地利用变化、城市化）和海洋（如污染、过度捕捞）环境中的局部压力源现在与全球压力源（如海洋变暖、酸化）结合在一起，极大地改变了海景的形式和功能，以及它们提供沿海社区所依赖的基本生态系统产品和服务的能力。虽然人类对沿海景观的影响已经在物种范围转移和生物入侵、食物网重构和生物多样性丧失等方面进行了评估，但关于人类活动对支撑沿海生态系统功能的复杂、多尺度陆海营养交换途径的影响的研究仍然很少。迫切需要研究阐明陆海营养动态的时空尺度和模式，以遏制生态系统健康、生物多样性和恢复力的持续快速下降，特别是在缺乏离散边界的“开放”沿海景观中。