摘要
在遥感、地理信息系统的支持下,基于2003、2011年Landsat-7卫星影像数据,运用Fragstats3.3景观格局分析软件和景观生态学的基本原理、方法,通过对比2003、2011年景观格局指数,分析研究福建省平潭岛的景观格局时空演变规律。结果表明:研究区景观各要素特征发生了较大变化,城镇、农村居民点的斑块面积由2003年的2464.08 hm2增加到2011年的4550.83 hm2;景观空间结构的变化表现为景观类型的形状指数和分维数都有不同程度的增加;邻近景观指标总体呈下降趋势,表明景观类型之间距离更远,变得更离散;景观异质性指数中的廊道斑块密度明显增大,增加量为21.96个.hm-2。8 a间平潭岛的景观格局呈现剧烈变化态势。
Based on the satellite image datas of Landsat 7 both in 2003 and 2011,this paper analysed the spatiotemporal evolution of landscape pattern of Pingtan Island of Fujian Province by contrasting the landscape pattern index in 2003 and 2011 and adopting the RS and GIS technologies,as well as using the Fragstats3.3 landscape pattern analysis software and the basic theory of landscape ecology.The results showed that all the landscape elements had a great change,the patch area increased from 2464.08 hectares(2003) into 4550.83 hectares(2011).The change of landscape spatial structure showed that the shape index and fractal dimension of the landscape types had increased differently;The adjacent landscape overall indicator showed a downward trend,indicating that the distance between the landscape types became much further and more discrete;the patch density of transport sites in the landscape heterogeneity index increased more sharply,the increase was 21.96 ones·hm-2.The landscape pattern presented drastically change in 8 years.
出处
《福建林业科技》
北大核心
2013年第1期75-80,共6页
Journal of Fujian Forestry Science and Technology
关键词
景观格局
演变规律
平潭岛
landscape pattern
evolution law
Pingitan Island
