海洋地质前沿2024，Vol.40Issue(3)：55-63,9.DOI:10.16028/j.1009-2722.2023.115
1987-2020年三门湾海岸带LUCC与近岸生态环境变化
Land use and cover change and ecosystem effect in Sanmen Bay coastal zone during 1987-2020
摘要
Abstract
Analyzing LUCC(Land Use and Cover Change)is of great significance for improving land develop-ment and utilization efficiency and promoting ecological environment protection work.This article selects the Sanmen Bay coastal zone as the research area,and uses Landsat images from six periods from 1987 to 2020 as the data source.GIS and RS technologies are used to analyze the spatial and temporal patterns of land use in the San-men Bay coastal zone using quantitative analysis and land transfer matrix models.The results show that:① Con-struction land,cultivated land and aquaculture land are the dominant land use types in the coastal zone of Sanmen Bay.Human activities and urbanization have led to the increase of construction land and aquaculture area.The transfer of land use is mainly manifested in the trend of farmland to construction land,and mudflat to aquaculture land.② Under the influence of changes in land use structure and properties,the nutrient content in the nearshore water of Sanmen Bay has shown a trend of first increasing and then decreasing in the past 30 years;In the past 20 years,the coastal comprehensive potential ecological index has increased from 16.47 to 21.18;Human activities threaten the coastal ecological environment of Sanmen Bay.关键词
三门湾/土地利用/人类活动/营养盐/重金属Key words
Sanmen Bay/land use/human activity/nutrient salts/heavy metals分类
海洋科学引用本文复制引用
李梅娜,刘晓凤,印萍,曹珂,陈小英..1987-2020年三门湾海岸带LUCC与近岸生态环境变化[J].海洋地质前沿,2024,40(3):55-63,9.基金项目
中国地质调查局项目"浙江中部海岸带综合地质调查"(DD20190276),"典型河口及湿地滩区生态地质调查"(DD20221775) （DD20190276）
国家重点研发计划政府间/港澳台重点专项"河口三角洲生态环境地球观测应用研究"(SQ2019YFE012389) （SQ2019YFE012389）
