Karst rock-desertification of extracting vegetation coverage inversion based on NDVI serial images and dimidiate pixel model——A case study of the Yachi demonstrate area in Bijie city of Guizhou
With the technological development background of “3S, the research area is Yachi demonstrate area in Bijie city of Guizhou. For traditional methods,NDVI is always used to extract Vegetation information from remote sensing image. Based on theory of dimidiate pixel model,the study region defined NDVISsoil and NDVISveg,vegetation, the inversion dimidiate pixel model was established based on vegetation index(NDVI) to extract vegetation coverage, vegetation coverage can be calculated by using the model of quantifying vegetation fraction from normalized difference vegetation,then acquired relationships between NDVI Serial Images and landscape pattern karst rock-desertification,finally yachi demonstrate area gainer karst rocky desertification landscape pattern of distribution.Using this methods of karst rocky desertification landscape pattern research has significantly improved the accuracy of classification, providing a scientific basis to ecological restoration of karst rocky desertification and other integrated control.
Karst Rock-Desertification NDVI Dimidiate Pixel Model
Hui Zhang Zhongfa Zhou Jun Xie
Guizhou Computer Software Development Center, Guiyang, China,550001 Institute of South China Karst, Guizhou Normal University,Guiyang,Guizhou China, 550001
国际会议
桂林
英文
1-7
2011-11-01（万方平台首次上网日期，不代表论文的发表时间）