摘要
将分形几何学基本理论引入热力景观空间格局分析,借鉴景观生态学研究方法,使用包括山东大学南部山区的2013-05-21的landsat-8数据和同时间段MODIS数据,利用劈窗法反演地表温度。在反演地表温度的基础上,采用均值-标准差法,将反演地表温度分为高温、次高温、中温、次低温及低温5个等级,分别对应热力景观的5个景观类型。采用景观生态学中破碎度、分维数、多样性、均匀度和优势度等评价指标。结果表明:山东大学南部山区高温区、次高温区、中温区、次低温区及低温区占南部山区面积分别为12.07%、14.64%、36.47%、15.12%、21.70%,各热力景观指数存在明显差异,表明南部山区在热力空间分布上的差异性。
In this paper,we introduce a basic theory of fractal geometry to analyze spatial pattern of thermal landscape and use method of landscape ecology including the landsat- 8 data of south mountain region in Ji＇nan city,China on May 21,2013 and the MODIS data of the same time period. Based on the inversion of surface temperature,using mean standard deviation method,the surface temperature can be divided into 5 grades of high temperature,high temperature,medium temperature,low temperature and low temperature,respectively. The 5 landscape types of thermal landscape are respectively. The evaluation index of landscape ecology such as fragmentation,fractal dimension,diversity,evenness and dominance was used. The results show that there are obvious differences between the,14. 64%,36. 47%,15. 12%,21. 70%,and 12. 07%,respectively,and the difference of thermal spatial distribution in the southern mountain area of southern mountain region.
出处
《山地学报》
CSCD
北大核心
2016年第4期425-431,共7页
Mountain Research
