摘要
本研究对全球海岸带中的人口分布、土地覆盖物分布、生物多样性热点和保护区等的现状进行了评估。海岸带系指海岸线100km范围以内的陆地。本研究试图回答以下这样一些问题:海岸带人口拥挤程度如何?海岸带土地覆盖物分布型式怎样?海岸带有多少地区被划作保护区?生物多样性热点现状如何?人与海岸环境之间有何联系?在研究中,我们采用了根据遥感和其它来源得来的综合性且彼此协调一致的地球空间数据集。采用地理信息系统分层(Layering)方法和彼此兼容的数据集,使我们能够对某些海岸带所存在的问题及其相互关系进行鉴别和量化。预计这类信息可为全球海岸带的管理提供依据,并且有助于国家政策和国际政策的制定。
This study focuses on assessing the state of population distribution, land cover distribution, biodiversity hotspots, and protected areas in global coastal zones. The coastal zone is defined as land within 100 km of the coastline. This study attempts to answer such questions as: how crowded are the coastal zones, what is the pattern of land cover distribution in these areas, how much of these areas are designated as protected areas, what is the state of the biodiversity hotspots, and what are the interconnections between people and coastal environment. This study uses globally consistent and comprehensive geospatial data-sets based on remote sensing and other sources. The application of Geographic Information System (GIS) layering methods and consistent datasets has made it possible to identify and quantify selected coastal zones environmental issues and their interconnections. It is expected that such information provide a scientific basis for global coastal zones management and assist in policy formulations at the national and international levels.
