摘要
广西北部湾是“一带一路”交汇的重要门户,拥有丰富的沿海港口资源、海洋生物资源、滨海旅游资源。海洋经济活动可能对近海动植物的生存环境产生负面影响,环境变化反映了人类活动对海岸资源的利用与破坏,以及海洋生态变化的程度。因此,为海岸带可持续发展提供数据支撑,扩展海岸带要素提取的时间范围与尺度,对海岸带环境监测与评估具有重要意义。本数据集采用半自动提取方法构建了3套各6期中国广西海岸带多要素数据集,包括红树林、养殖塘和海岸线,数据时间覆盖1990、2000、2010、2015、2020、2022年。红树林总体精度约为90%,养殖塘总体精度大于90%,海岸线偏移度小于20 m。本数据集具有时间序列长、精度高、多要素的特点,可用于海岸带时空分布特征和海陆格局演变的研究。
The Beibu Gulf in Guangxi serves as an important gateway for the Belt and Road Initiative,boasting abundant coastal port resources,marine biological resources,and coastal tourism attractions.However,economic activities in the ocean may have a negative impact on the living environment of marine plants and animals.Environmental changes reflect the extent of human activities'utilization and destruction of coastal resources,as well as changes in marine ecology.Therefore,providing data support for the sustainable development of the coastal zone,and expanding the time range and scale of coast zone factor extraction,is of great significance for coastal zone environmental monitoring and assessment.Using a semi-automatic extraction method,this study constructs three sets of 6-phase multi-factor datasets of the coastal zone in Guangxi Province,China,spanning from 1990 to 2022,including the information on mangroves,aquaculture ponds,and coastlines,and covering the years 1990,2000,2010,2015,2020,and 2022.The overall accuracy for mangroves is approximately 90%,exceeding 90% for aquaculture ponds,with the coastline displacement less than 20 m.Featuring a long time series,high precision,and multiple factors,this dataset can be used for studying the spatiotemporal distribution characteristics of the coastal zone and the evolution of marine-land patterns.
作者
张博
张丽
陈博伟
邓良超
陈宇杨
季承云
ZHANG Bo;ZHANG Li;CHEN Bowei;DENG Liangchao;CHEN Yuyang;JI Chengyun(Key Laboratory of Digital Earth Science,Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,P.R.China;International Research Center of Big Data for Sustainable Development Goals,Beijing 100094,P.R.China;University of Chinese Academy of Sciences,Beijing 100049,P.R.China;College of Geomatics and Geoinformation,Guilin University of Technology,Guangxi Guilin 541004,P.R.China;Guilin University of Electronic Technology,Guangxi Guilin 541004,P.R.China)
基金
广西创新驱动发展专项(桂科AA20302022)。
