项目名称: 甘肃白龙江流域景观格局与生态系统服务功能时空变化研究
项目编号: No.41271199
项目类型: 面上项目
立项/批准年度: 2013
项目学科: 天文学、地球科学
项目作者: 巩杰
作者单位: 兰州大学
项目金额: 75万元
中文摘要: 人类活动导致的地表景观格局变化及其生态系统服务效应研究是国际生态学和土地变化科学关注的热点和重点。本项目选择景观破碎、人类活动强烈与灾害频发的生态过渡带- - 甘肃白龙江流域为研究区,基于遥感影像、社会经济资料、野外实地调查、景观生态学方法、InVEST模型和GIS空间分析技术等,开展流域景观格局与生态系统服务时空变化及其耦合关系研究。主要研究内容有:(1)基于景观格局指数等来开展流域景观格局及其时空变化研究;(2)基于InVEST模型参数改进等开展流域生态系统服务功能定量研究及其时空变化分析;(3)基于数理统计和空间分析技术等来构建景观格局与生态系统服务功能变化的耦合模型;(4)辨析流域景观格局演变、人类生产与建设活动与生态系统服务功能的作用关系。本研究将发展流域生态系统服务功能评估方法,可以为流域生态系统服务功能维系和景观管理提供科学依据,具有重要的实践应用和示范价值。
中文关键词: 景观格局;土地利用;生态系统服务;时空变化;影响因素
英文摘要: Human induced changes of landscapes and ecosystem services and its interactions are hotspots of ecology and land change science. Bailongjiang watershed in Southern Gansu, a typical ecotone with fragile nature and diverse landscape and high-intensitive human activities, is selected as a case study area to study spatio-temporal changes of landscapes and ecosystem services and its and its coupling relationship in the past 40a. On the basis of remotely sensed images, socioeconomic data, field investigation, methods of landscape ecology, InVEST model and GIS techniques, this proposal plans to: (1) map and spatio-temporal changes of landscape pattern and to identify the ecological sensitive with landscape pattern index, (2) assess and map and spatio-temporal changes and trade-off of multiple ecosystem services in the watershed with the revision of parameters of InVEST model and other methods, (3)investigate complex couplings between changes of landscape pattern and ecosystem service with mathematical statistics and spatial correlation analysis, (4) analyse the interaction and coupling among landscape pattern change, human activities (e.g., land conversion of agriculture and industrial development) and ecosystems (e.g., provision and changes of ecosystem services). This research will not only improve the scientific un
英文关键词: Landscape pattern;land use;ecosystem services;spatiotemporal changes;driving forces