A database of global wetland validation samples for wetland mapping  

全球湿地验证样本库的研究和建立(英文)

作　　者：郑姚闽 牛振国 宫鹏 王杰 

机构地区：[1]State Key Laboratory of Remote Sensing Science,Institute of Remote Sensing and Digital Earth,Chinese Academy of Sciences [2]Ministry of Education Key Laboratory for Earth System Modeling,Center for Earth System Science,Institute for Global Change Studies,Tsinghua University [3]Joint Center for Global Change Studies [4]Department of Environmental Science,Policy and Management,University of California

出　　处：《Science Bulletin》2015年第4期428-434,M0003,共8页科学通报（英文版）

基　　金：supported by the National Science and Technology Support Program(2012BAJ24B01);the National Natural Science Foundation of China(41201445;41271423);the National High Technology Research and Development Program of China(2009AA122003)

摘　　要：A database of global wetland validation samples （GWVS） is the foundation for wetland mapping on a global scale. In this work, a database of GWVS was created based on 25 “wetland-related” keyw ord searches of a total of 3,506 full-text documents downloaded from the Web of Science. Eight hundred and three samples from a total of 68 countries and 14i protected areas were recorded by the GWVS, including samples of marine/coastal wetlands, inland wet- lands and human-made wetlands, at ratios of 53 %, 41% and 6 %, respectively. The results exhibit spatial distribution among Terrestrial Ecoregions of the World, the World Database on Protected Areas and the Database of Global Administrative Areas. Within most of the biomes, protected areas and countries examined, the very low concentration of samples requires more attention in the future. The greatest concentration of samples within a single biome is found in the tropical and subtropical moist broadleaf forest biome, accounting for 27 % of the total samples, while no sample is found in the biome of tropical and subtropical coniferous woodland. Greater efforts are expected to be made to record samples in Oceania, Central Europe, Northern Europe, Northern Africa, Central Africa, Central America, the Caribbean, and midwestern South America. Our data show that it is feasible to map global wetlands using Landsat TM/ ETM＋ at 30-m resolution. The continued improvement of the GWVS sharing platform should be reinforced in the future, making a strong contribution to global wetland mapping and monitoring.全球沼泽地确认样品(GWVS ) 的一个数据库是为在全球规模上印射的沼泽地的基础。在这个工作， GWVS 的一个数据库基于从科学的网下载的 3,506 个全文的文件的一个总数的 25 沼泽地相关的关键词搜索被创造。从 68 个国家和 141 个保护的区域的一个总数的八 103 件样品被 GWVS 记录，包括海洋 / 沿海的沼泽地，内陆沼泽地和做人的沼泽地的样品，在 53 的比率 ?% ， 41 ?% 并且 6 ?% 分别地。结果在世界，保护的区域上的世界数据库和全球行政区域的数据库的陆上的 Ecoregions 之中展出空间分发。在大多数检验的生物群系，保护的区域和国家以内，样品的低集中以后要求更多的注意。在一个单个生物群系以内的样品的最大的集中在热带、副热带的潮湿的阔叶烟草森林生物群系被发现，为 27 的财务 ? 全部的样品的 % ，当没有样品在热带、副热带的具球果的树林的生物群系被发现时。更大的努力被期望被作在大洋洲，中央欧洲，北欧洲，北非洲，中央非洲，中美洲，加勒比海，和 midwestern 记录样品南美洲。我们在 30-m 分辨率用 Landsat TM/ETM+ 印射全球沼泽地是可行的数据表演。分享站台的 GWVS 的继续的改进以后应该被增强，做对印射并且监视的全球沼泽地的强壮的贡献。

关 键 词：GWVS Remote sensing Wetlandmapping Wetland monitoring - Protected area 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]