湿地边界划定方法研究——以湖南东洞庭湖国际重要湿地为例
Study on Wetland Boundary Delineation Methods——A Case Study of the East Dongtinghu International Important Wetland in Hunan Province
王也 1全思湘 1王珍香 1王本礼1
作者信息
- 1. 湖南省第二测绘院,湖南长沙 410119;自然资源湖南省卫星应用技术中心,湖南长沙 410119;自然资源部南方丘陵区自然资源监测监管重点实验室,湖南长沙 410119
- 折叠
摘要
科学划定湿地边界是湿地调查监测和湿地管理的首要工作.本文探讨了基于航空航天遥感影像、数字线划图(DLG)和数字高程模型(DEM)等多源数据开展湿地边界划定的总体思路和技术方法,并以湖南东洞庭湖国际重要湿地为例进行了验证.结果表明,基于多源数据和遥感技术手段获取水文、植被、土壤和高程等湿地边界划定因子,构建不同类型湿地解译标志,能提高湿地边界划定的工作效率,引入DEM等高程数据参与湿地边界的确定,可以进一步提高湿地边界划定的精度.
Abstract
Scientifically delineating wetland boundaries is a primary task in wetland sur-veying,monitoring,and management.This article discusses the overall concept and technical methods for wetland boundary delineation based on multi-source data,including aerospace remote sensing imagery,Digital Line Graphs(DLG),and Digital Elevation Models(DEM).A verification study was conducted using the East Dongtinghu,an internationally important wetland in Hunan province,as an example.The results indicate that by using multi-source data and remote sensing techniques to acquire wetland delineation factors such as hydrology,vegetation,soil,and ele-vation,and by constructing wetland interpretation indicators for different types of wetlands,the efficiency of wetland boundary delineation work can be improved.The introduction of eleva-tion data such as DEM into the determination of wetland boundaries can further enhance the pre-cision of wetland boundary delineation.
关键词
多源数据/湿地类型/湿地边界划定/解译标志/湖南Key words
multi-source data/wetland types/wetland boundary delineation/interpretation indicators/Hunan引用本文复制引用
出版年
2024
NETL
NSTL
万方数据