生态科学2018，Vol.37Issue(6)：52-59,8.DOI:10.14108/j.cnki.1008-8873.2018.06.007
福建省长汀县土地利用变化及其对生态风险的影响
Land use change and its impact on ecological risk in Changting County, Fujian Province
摘要
Abstract
This study takes Changting County as the typical red soil research area, based on remote sensing imagery of Landsat TM in 2000, 2010, 2015, and carries on the supervision classification of the research area in ENVI5.0.On this basis, using the Fragstats4.2 computation area all kinds of landscape index, using the ArcGIS10.0 statistic module, the common kriging method for spatial interpolation, the ecological risk of the landscape pattern of Changting County and its temporal and spatial change were evaluated.The results showed that 2000-2015, the landscape pattern of Changting County changed markedly, with the construction land, cultivated land and water landscape type area increasing rapidly, and grassland area decreased obviously.The risk rank had the first increment after the period change.The higher and the high risk rank extended or dropped mainly in the middle area.In the 2000-2010, research area risk index became bigger.Low risk level and lower risk grade area decreased, moderate risk level and high risk grade area increased, accounting for 66％of total area.Regional risk rank increased markedly, and ecological environment quality decreased.In 2010-2015 landscape pattern changed significantly;cultivated land, construction land, water area increased 6033.72 hm2, 3822.01hm2, 714.24 hm2.Grassland area decreased, the high risk grade area decreased 7％, while the low risk grade area increased 7％.The risk level decreased obviously, and the eco-environmental problems were improved obviously.关键词
景观格局/风险等级/时空变化/长汀Key words
landscape pattern/risk grade/temporal and spatial variation/Changting分类
管理科学引用本文复制引用
李月月,黄义雄,杨阳,叶功富..福建省长汀县土地利用变化及其对生态风险的影响[J].生态科学,2018,37(6):52-59,8.基金项目
福建省水土保持林生态效益评价模型研究(HO0888) （HO0888）
福建省水主要土保持林改良土壤效应研究(CO0058) （CO0058）
