华南地震2025，Vol.45Issue(4)：59-66,8.DOI:10.13512/j.hndz.2025.04.08
盐沼池塘扩张对盐沼平台演变的影响研究
Influence of Salt Marsh Pond Expansion on Salt Marsh Platform Evolution:A Case Study of New England
谭博元 1FitzGerald Duncan M. 1Hughes Zoe 1Tigges Sophia1
作者信息
- 1. Department of Earth and Environment,Boston University,Boston,MA 02215,USA
- 折叠
摘要
Abstract
This study selects the large marshes on Plum Island,Massachusetts as a case.By using historical aerial images of 1974,2008 and 2021,the paper tracks the spatial pattern and temporal changes of salt marsh ponds and explores the impact of their expansion on the stability of the marsh plane.For this purpose,in this study,the boundaries of the pond were delineated and classified by area by using ArcGIS Pro,and key indicators such as the expansion rate,the direction of centroid migration and area change were calculated accordingly.The results show that over the past half century,these ponds have undergone a dynamic evolution process of expansion first and then partial recovery.The vegetation recovery in some local areas has even offset the area loss caused by expansion,showing a net recovery trend.Wind and wave erosion,freeze-thaw action and peat decomposition jointly drive the expansion and direction change of the pond.Map analysis further reveals that the vegetation restoration at the edge of the pond is closely related to the drainage effect of early ditching or tidal connectivity.Even under partially drained conditions,vegetation can gradually recover.Drawing on the mature research framework of the New England region has significant reference value for the management and restoration of salt marshes in China.关键词
盐沼池塘/扩张/演变/历史航空影像/植被恢复/边缘侵蚀Key words
Salt marsh pond/Expansion/Evolution/Historical aerial images/Vegetation restoration/Edge erosion分类
天文与地球科学引用本文复制引用
谭博元,FitzGerald Duncan M.,Hughes Zoe,Tigges Sophia..盐沼池塘扩张对盐沼平台演变的影响研究[J].华南地震,2025,45(4):59-66,8.
