摘要
利用2000年的Landsat TM影像和2016年的OLI影像,采用遥感生态指数(RSEI)法,反演表示生态环境的湿度、绿度、热度和干度4个指标,并对其作主成分变换得到RSEI影像,以此分析16年间江川区生态环境状况。结果表明,江川区的RSEI从2000年的0. 472上升到2016年的0. 544,总体生态环境得到改善; 16年间RSEI等级降低、不变、增加的面积分别为49. 762 km^2、364. 574 km^2、289. 087 km^2,分别占总面积的7. 07%、51. 83%、41. 10%。
Four eco-environmental indexes, humidity, greenness, heat and dryness, were inverted by using remote sensing ecological index（RSEI） method, Landast TM images from 2000 and Landast OLI images from 2016. The final RSEI image derived from principal component transformation was applied to analyze the eco-environmental status in Jiangchuan county for 16 years. The results showed that the remote sensing ecological index （RSEI） rose from 0.472 in 2000 to 0.544 in 2016. The general eco-environment was improved. During the 16 years , the decreased, unchanged and increased area of RSEI grading were 49.762 km^2, 364.574 km^2 and 289.087 km^2, accounting for 7.07%, 51.83% and 41.10% of total, respectively.
作者
张朋兴
袁希平
甘淑
ZHANG Peng-xing;YUAN Xi-ping;GAN Shu(Yunnan Land Resources Engineering,Kunming University of Science and Technology,Kunming,Yunnan 650093,China;Yunnan City College,Kunming University of Science and Technology,Kunming,Yunnan 650051,China;Yunnan Provincial Plateau Mountain Space InformationMapping Technology Application Engineering Research Center,Kunming,Yunnan 650093,China)
出处
《环境监测管理与技术》
CSCD
2018年第5期25-29,共5页
The Administration and Technique of Environmental Monitoring
基金
国家自然科学基金"滇中星云湖高原湖泊流域聚落空间格局演化研究"资助项目(41561083)
云南省自然科学基金"滇东南岩溶山地水土环境脆弱性空间分异的多尺度探测研究"资助项目(2015FA016)
关键词
遥感生态指数
生态环境
江川区
Remote sensing ecological index
Ecological environment
Jiangchuan county
