以1984年、1995年、2008年遥感影像和2004年滨海新区土地利用现状图为主要数据源,在遥感与地理信息系统技术支持下,获取天津市滨海新区1984年至2008年湿地历史演变数据。从供给服务、调节服务、支持服务和文化服务四个一级服务类型建立研究区生态服务价值体系,并利用专家调查法确定各生态服务类型价值当量与单位服务价值,对滨海新区进行生态服务价值历史评价。根据研究区实际发展状况制定有无湿地保护两种方案,并预测两种方案下湿地2009—2020年需求及两种方案下研究区生态服务价值变化,结论认为湿地保护方案对缓解滨海新区的经济发展对环境的压力将起到重要作用。
Taking the landsat TM images in 1984,1995 and 2008,and the present land use map of 2004,and the other data of Tianjin Binhai New Area(TBNA) as the basic information resources,this paper analyzed the landscape changes of TBNA wetlands in 1984-2008 by RS and GIS.The provisioning,regulating,cultural and supporting ecosystem services were chosen as the main functions of the wetlands of TBNA.With local environmental experts investigation,the ecological service value of TBNA was calculated by the evaluation system.Under the two scenarios‘WWP’and ‘WP’,the area of wetlands develops toward different direction.With the evaluation system,we calculated the ecological service value from 2009-2020 under the two scenarios,we concluded that the wetland protection plan will alleviate the stress from social development.