【摘要】 为了对动态场景下自然保护区的功能区划进行研究,集成多年的遥感、海图及野外调查数据,构建生境地理空间数据库,在遥感和GIS技术的支持下,建立了大河口区淤涨型自然保护区的功能区划框架,并给出了区划方法的一个基于离散数学的表述。在此基础上,利用eCogn ition面向对象的遥感影像处理技术和空间模糊评价模型,研究了崇明东滩鸟类国家级自然保护区的功能区划。结果表明:①核心区、缓冲区1、缓冲区2和过渡区4个功能区分别占东滩保护区总面积的18.0%、13.2%、18.4%、50.4%。在空间布局和生态学意义上,都比原有功能区划更为合理;②遥感及其派生数据的介入,在宏观尺度和长时间尺度上拓展了人们对保护区生态环境的理解,不仅降低了传统数据采集工作的强度,也增强了区划结果的时效性和科学性;③现代GIS技术与传统数学方法的融合可以更好地服务于保护区规划。区划结果可以为动态场景下的保护区规划管理提供科学依据。更多还原

【Abstract】 Due to inapplicability of traditionally static function zoning for the nature reserve in dynamic scenarios,a systematic function zoning framework was constructed for the dynamic scenarios of large estuary district.The multisource data,including remote sensing images,nautical charts and field surveys performed in recent years,were integrated into a habitat geospatial database.Then the framework was built by incorporating remote sensing and GIS techniques.On that basis,the function zoning of the Chongming Dongtan National Natural Reserve was studied by utilizing the eCognition object-oriented image segmentation method and spatial fuzzy assessment model,and obtained the following results:(1) Core zone,buffer zone 1,buffer zone 2,and transition zone accounted for 18.0%,13.2%,18.4%,and 50.4% of the total area of the nature reserve,respectively,which is better than previous function zoning both in spatial distribution and ecological sense;(2)The remote sensing images and its derived data make that the ecological environment of the reserve understandable on the macroscale and long-term scale,promote the time-effectiveness and reliability,but decrease the fieldwork intensity to a great extent;(3) The fusion of modern GIS techniques and traditional mathematical models has a good prospect in reserve planning.The results can be employed to provide scientific proofs for the function zoning of the nature reserve in dynamic scenarios.更多还原