海洋地质前沿2025，Vol.41Issue(4)：82-92,11.DOI:10.16028/j.1009-2722.2024.244
基于多源数据的广西珍珠湾红树林遥感监测与分析
Remote sensing monitoring and analysis based on multi-sourced data of mangroves in Pearl Bay,Guangxi
摘要
Abstract
To understand the spatiotemporal evolution of mangroves in Pearl Bay,Guangxi over the past 30 years,we used Landsat TM/OLI satellite remote sensing images as the data source and combined them with Sen-tinel-2 satellite remote sensing images.Based on the spectral characteristics of the ground objects,we constructed a decision tree classification rule.Through the decision tree classification method based on tasseled cap transform-ation,we extracted the spatial distribution information of mangroves in 1995,2000,2005,2010,2015 and 2023,calculated the dynamic degree and landscape pattern index,and analyzed the dynamic spatiotemporal evolution of mangroves in the study area from 1995 to 2023.Results indicate that over the past nearly 30 years,mangrove forests in Pearl Bay have changed significantly in terms of area composition and spatial location,presenting an overall trend of decreasing first and then increasing.The period with the highest dynamic degree is 2005-2010,during which the mangrove area increased to 836.21 hectares,with a dynamic degree of 3.59％.The calculation of the landscape pattern index shows that the fragmentation and landscape differentiation degree generally exhibit a trend of increasing first and then decreasing,while the aggregation degree is relatively stable.The spatial evolu-tion of the mangroves are related to natural factors such as precipitation,temperature,sediment deposition,and pest damage,and are closely related to human activities such as pond culture.关键词
红树林/遥感监测/时空演化/景观格局指数/驱动因素Key words
mangrove/remote sensing monitoring/space-time evolution/landscape pattern index/driving factor分类
海洋学引用本文复制引用
李梅娜,田雨晴,印萍,段晓勇,张嘉琳,李雪,张尧..基于多源数据的广西珍珠湾红树林遥感监测与分析[J].海洋地质前沿,2025,41(4):82-92,11.基金项目
亚洲合作资金项目"长江三角洲与红河三角洲海洋地质环境与灾害合作研究" （）
中国地质调查局项目"长江口海岸带地质环境调查与监测"(DD20242714) （DD20242714）
浙江省地质专项资金项目"浙江省海岸带综合地质调查(台州重点区)"(省资2023013) （台州重点区）
中央自然灾害防治体系建设项目"浙江省滨海地区浅层气灾害防治技术研究:以舟山绿色石化基地为例"(2023330053) （2023330053）
