华南农业大学学报2016，Vol.37Issue(4)：97-104,8.DOI:10.7671/j.issn.1001-411X.2016.04.016
快速城市化地区城市森林景观破碎化的动态演变分析
Analysis on dynamic development of landscape fragmentation for urban forest in fast-urbanization regions
摘要
Abstract
[Objective] The purpose of this study was to analyze dynamic development of landscape frag-mentation for urban forest in fast-urbanization regions, and provide scientific basis for master urban plan, urban green space system plan, urban forest construction and sustainable development in fast-urbanization regions. [Method]Based on the Landsat TM/ETM+ satellite images taken in 1990, 2000 and 2010, the dynamic trends of landscape fragmentation for urban forest in Huizhou, Guangdong were analyzed by landscape pattern indices analysis and transition matrixes along three gradients including the central area, suburban area, and outer suburban area.[Result]The patch density of the central area increased from 0. 08 to 0. 25 per hm2 during 1990—2010. Meanwhile, the mean patch area decreased from 11. 81 to 3. 92 hm2 . Similar changes in patch density and patch area happened to the suburban area, but the change scale reduced from 2000 to 2010 suggesting that the fragmented patches gradually narrowed in the central and suburban area. The landscape fragmentation process was relatively slow in the outer suburban area. The patch density of the outer suburban area first increased from 0. 18 to 0. 30 per hm2 , and then decreased to 0. 11 per hm2 , and the mean patch area decreased from 9. 12 to 3. 51 hm2. In 1990—2000, rapid and out-of-order urbanization led to the increased number and decreased area of urban green pat-ches. However, during 2000—2010 the area of urban green patches gradually increased, the patch inte-gration enhanced, and the landscape fragmentation decreased through construction of urban parks, affor-estation in barren hills, and ecological restoration. A typical defragmentation trend was observed. [Con-clusion]Ecological restoration and reconstruction in an organized process can effectively improve the land-scape condition of urban forest and increase urban forest coverage.关键词
快速城市化/城市森林/景观破碎化/逆破碎化/惠州Key words
fast-urbanization/urban forest/landscape fragmentation/defragmentation/Huizhou City分类
农业科技引用本文复制引用
杨沅志,薛冬冬,张浩,徐正春,唐光大..快速城市化地区城市森林景观破碎化的动态演变分析[J].华南农业大学学报,2016,37(4):97-104,8.基金项目
广东省林业科技计划项目(2012-03) （2012-03）
