沿海景观复杂度与水体生态环境的相关性研究

沿海潮间带湿地是生态敏感区，依靠沿岸不同形态的景观地貌与潮汐水动力作用，维系着近海水域的自然过程与生态平衡。通过调查、收集国内典型海湾的水体生态环境状况资料，运用分形几何学的分维模型和形状指数等景观特征量化方法，结合最小二乘法原理和SPSS统计分析软件，研究海湾近海水域的景观结构与水体生态环境（如赤潮、底栖生物多样性）之间的相关性，建立了底栖生物多样性与沿海地貌复杂度指标间的综合模型。研究结果表明，沿海岸线的曲折度及空间格局的复杂度对近海水域生物多样性及水体净化功能起到重要作用，其中岸线分维数是关键影响因素。研究结果对今后量化调控与管理沿海围垦开发建设提供新的理论依据和设计参考。

Investigation of correlation between complexity of coastal landscape and water ecological environment

Coastal intertidal wetlands are ecologically sensitive areas. Relying on the interaction of different landscape morphology and tidal hydrodynamics along the coast, the natural processes and ecological balance in the coastal waters are maintained. This paper studies the correlation between the landscape complexity and ecological environment (such as red tide and benthic biodiversity) in the offshore waters of the bay, and established a model of the correlation between benthic biodiversity and the complexity of coastal landform based on the water quality data of typical bays in China. And the fractal dimension model of fractal geometry such as fractal dimension and shape index were referenced in the modeling. Besides, with the help of SPSS statistical software, the modeling was implemented by least squares method. The results show that the complexity of coastline and spatial pattern play an important role in the coastal biodiversity and water purification function. Among them, the fractal dimension of the coastline is an important indicator. The research results can provide a stronger theoretical basis and reference for future quantitative control and management of coastal design, reclamation development and construction.