高危重金属与生源要素相互作用的宏观与微观生态学过程是生态学研究的前沿和核心内容。面对区域发展、生态与环境安全的多重需求，结合在海峡两岸重要河口湿地长期研究取得的显著成果比对发现的新的科学问题，研究海峡两岸典型河口红树林生态系统中生源要素与高危重金属耦合机制及驱动力。探讨生源要素与污染物的耦合过程及其转化、传递和积累过程对海峡两岸河口环境安全影响的机理与污染物削减的新理论和新方法；分析河口红树林生态系统的功能对多重污染压力的响应过程；阐明生源要素驱动下红树林沉积物生物群落区域的分异性，比对由污染物以及人工调控驱动下的红树林生态系统的变化规律以及由此引起的沉积物质量变化过程和对红树林生态系统功能的影响;揭示海峡两岸重要河口生态系统持续稳定的关键生态学过程的变化规律及主控因子，并提出生态系统持续发展的调控对策。巩固和强化两岸合作研究平台，大幅度提升两岸河口湿地生态系统创新研究能力与水平

The macro- and micro-ecological process of the interactions between hazardous heavy metals and biogenic elements are the frontier and core scientific issues of ecological research. Considering the multiple demands of regional development and environmental security and combining the remarkable achievements in cross-strait estuarine researches, we aim to study the driving and integrated mechanism in the key ecological processes of the interactions between hazardous heavy metals and biogenic elements in the cross-strait mangrove wetlands. The tasks of this project are: exploring new theories and new methods in pollutant abatement and revealing the coupling processes and transformation, transference and accumulation between biogenic elements and pollutants in the estuarine environment across the Strait; analyzing the response of estuarine mangrove ecosystem function under multiple pressures of pollution; clarifying the mechanisms of community distinctness driven by biogenic elements in mangrove sediments; comparing the sediment quality and function of mangrove ecosystems; revealing the key ecological process and main environmental factors for sustainable development of the cross-strait estuarine mangrove wetlands; Consolidating and strengthening the cooperation research platform across the strait, greatly improveing research and innovation ability and level of the estuarine wetland ecosystem research.