摘要
利用4个时相的陆地卫星遥感影像及相关资料,在遥感和地理信息系统技术支持下,对盐城国家级自然保护区的核心区和缓冲区进行了景观格局分析。结果表明,从1988～2002年,淤泥质滩涂面积增长了13.33%;分形维数从1.0991上升到1.1166,蔓延度指数从76.4426下降到53.1142,表明研究区形状趋于规则,人为干扰程度增大,景观有破碎有上升的趋势,该边缘生境异质性在逐步增强;人类对滩涂的影响增加,逐渐成为影响该生态系统的主要力量。
It is necessary to analyze the changes of landscape pattern in Yancheng State Reserve in order to give suggestion to protect the coastal wetlands by using land satellite TM imagery based on RS and GIS technology.It was commonly used quantitative research methods by choosing some landscape indexes to analyze the landscape pattern and changes in landscape ecology.Author tried to use four phases of land satellite TM imagery in 1988,1992,1997,and 2002 respectively and supplementary information to analyze the changes of reserve＇s core and buffer zones for 14 years,and the results indicated that human activities affection increased gradually in the flat wetland,and it became the main forces to affect the ecosystem of flat wetland,especially government implemented the ＂marine Sudong＂,aquaculture became the main affected mode for the flat wetlands,it was extremely unfavorable to protect the rare birds for Yancheng State Reserve.
出处
《海洋湖沼通报》
CSCD
北大核心
2008年第4期7-12,共6页
Transactions of Oceanology and Limnology
基金
国家自然科学基金(40301013)资助
