摘要
利用扬州瘦西湖新区数字线划图作为基本信息源,在地理信息系统(GIS)技术支持下,建立湿地空间数据库。选取斑块大小、斑块形状指数、分维数、景观多样性和优势度等指标,对湿地景观空间格局进行分析。结果表明:研究区的湿地斑块共计780个,而斑块形状指数PSI≤1．50的斑块数目为464个,湿地斑块形状受人为干扰程度较大。湿地景观类型也较多。但多样性指数不高,显示出较高程度的破碎化。据此,对研究区的湿地资源利用与开发提出了建立绿色河流廊道系统、保护湿地景观的多样性和特殊性等湿地景观生态规划建议。
By using digital line graphics of Slender West Lake new area as basic information resource and with the support of geography information system, a wetland spatial information dataset was built up. Through selecting the indices such as patch size, patch shape index, fractal dimension, diversity and dominance index, etc. , the wetland landscape pattern was analyzed and the following results were achieved ： The number of the wetland patches in the researching area were 780, while 464 patches the patch shape index was less than 1.5. The type of the wetland landscape was rich, but the diversity index was not high. The results emphasize the highly fragmented condition of wetland landscape in this region. At the same time, some ecological planning suggestions were put forward about utilizing the wetland.
出处
《扬州大学学报（农业与生命科学版）》
CAS
CSCD
北大核心
2005年第4期95-98,共4页
Journal of Yangzhou University：Agricultural and Life Science Edition
基金
国家"十五"科技攻关项目(2002BA516A15-07)
关键词
瘦西湖新区
数字线划图
地理信息系统
湿地景观
Slender West Lake new area
digital line graphics
geography information system
wetland landscape
