【摘要】 潮沟和植被是盐沼湿地系统的重要组成部分，探究二者在发育过程中相互作用形成的不同形态特征，有助于理解盐沼湿地生态系统的稳定性机制。本研究选取辽河口门头岗岛状盐沼，基于厘米级无人机遥感影像并结合GF-2卫星高分辨率遥感影像，采用地理信息系统（GIS）技术，获取了滩面75条潮沟系统和高精度的地形高程数据以及盐沼植被分布情况。通过对潮沟系统形态特征参数与植被覆盖度（Fractional Vegetation Coverage,FVC）的计算和系统性分析，得到了潮沟等级发育率与发育时间，以及潮沟曲率、密度与植被覆盖度间的相对关系，并发现了基于Gravelius分级法得到的1、2级潮沟夹角近似呈正态分布以及翅碱蓬在潮沟边缘的多种分布模式。这些发现揭示了潮沟与植被在不同发育阶段的形态特征，可为辽河口盐沼湿地在潮沟构建等方面的保护和修复工作提供理论参考。更多还原

【Abstract】 Tidal creeks and vegetation are essential components of salt marsh wetland systems. Exploring the different morphological characteristics formed by the interaction between them during development is helpful to understand the stability mechanism of salt marsh wetland ecosystem. This study took the MentouGang island salt marsh in Liaohe Estuary as the research object. Based on centimeter-level Unmanned Aerial Vehicle(UAV)remote sensing images and GF-2 satellite high-resolution remote sensing images, GIS technology was used to extract 75 tidal creek systems, along with high-precision elevation data and the distribution of salt marsh vegetation. The study involved the calculation and systematic analysis of morphological parameters of tidal creek systems and vegetation fractional vegetation coverage. Relationships between tidal creek development rate and development time, as well as tidal creek curvature, density, and vegetation coverage, were obtained. It was found that the angle between the first and second order tidal creeks, based on the Gravelius classification method, is almost normal distribution, and multiple distribution patterns of Suaeda salsa along the edges of tidal creeks were identified. These findings revealed the development characteristics of tidal creeks and vegetation in different environments. They provide theoretical references for the protection and restoration efforts concerning tidal creeks construction in the Liaohe Estuary salt marsh wetlands.更多还原