Changes of salt dynamics and distribution in coastal marshes

沿海沼泽盐动态和分布的变化

• 批准号: DP180104156
• 负责人: Em/Prof David Lockington
• 金额: $ 29.75万
• 依托单位: The University of Queensland
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2018
• 资助国家: 澳大利亚
• 起止时间: 2018-01-23 至 2022-12-30
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP180104156
• 关键词: Changes; salt; dynamics; distribution; coastal

This project aims to determine and quantify key mechanisms underlying salt transport and distribution in coastal salt marshes. Combining field measurements, laboratory experiments and numerical simulations, the proposed research will tackle long-standing questions concerning accumulation of excessive salt in the marsh soil, which imposes significant stress on marsh plants. This project will examine how temporal and spatial salinity variations lead to large density gradients that may trigger unstable pore-water flow and solute transport. The outcomes will advance our understanding of fundamental links between the marsh hydrology and ecology, and improve our scientific basis for evaluating the marsh ecosystem under different stress conditions.

该项目旨在确定和量化沿海盐沼中盐的运输和分布的关键机制。结合现场测量，实验室实验和数值模拟，拟议的研究将解决长期存在的问题，过量的盐在沼泽土壤中的积累，这对沼泽植物造成了显着的压力。该项目将研究时间和空间的盐度变化如何导致可能引发不稳定的孔隙水流动和溶质运移的大密度梯度。这些结果将促进我们对沼泽水文学和生态学之间基本联系的理解，并提高我们在不同压力条件下评估沼泽生态系统的科学基础。