应用生态学报2011，Vol.22Issue(7)：1833-1840,8.
基于高分辨率遥感影像的大洋河河口湿地景观格局变化
Changes of wetland landscape pattern in Dayang River Estuary based on high-resolution remote sensing image
摘要
Abstract
Based on the comprehensive consideration of the high resolution characteristics of remote sensing data and the current situation of land cover and land use in Dayang River Estuary wetland,a classification system with different resolutions of wetland landscape in the Estuary was established.The landscape pattern indices and landscape transition matrix were calculated by using the high resolution remote sensing data, and the dynamic changes of the landscape pattern from 1984 to 2008 were analyzed.In the study period, the wetland landscape components changed drastically.Wetland landscape transferred from natural wetland into artificial wetland, and wetland core regional area decreased.Natural wetland's largest patch area index descended, and the fragmentation degree ascended; while artificial wetland area expanded, its patch number decreased, polymerization degree increased, and the maximum patch area index had an obvious increasing trend.Increasing human activities, embankment construction , and reclamation for aquaculture were the main causes for the decrease of wetland area and the degradation of the ecological functions of Dayang River Estuary.To constitute long-term scientific and reasonable development plan, establish wetland nature reserves, protect riverway, draft strict inspective regimes for aquaculture reclamation, and energetically develop resource-based tourism industry would be the main strategies for the protection of the estuarine wetland.关键词
遥感/景观/湿地/大洋河Key words
remote sensing/ landscape/ wetland/ Dayang River.分类
天文与地球科学引用本文复制引用
吴涛,赵冬至,张丰收,卫宝泉..基于高分辨率遥感影像的大洋河河口湿地景观格局变化[J].应用生态学报,2011,22(7):1833-1840,8.基金项目
国家"908"专项(908-01-WY01)和国家公益性行业科研专(200805064)资助. （908-01-WY01）
