Annual integral changes of time serial NDVI in mining subsidence area
By means of MORTRAN4 model of FLASSH module, an atmospheric correction of the SPOT II/IV data of four-year period for eight experimental coal faces of Luan mine area was done. The mining-affected zones were obtained with probability integral method. The normalized difference vegetation index (NDVI) and its mean were obtained by band ratio calculation at the mining subsidence area. Using FOURIER4 model of the fast Fourier transform (FFT) of discrete Fourier analysis theory, the mean NDVI time series data set was reconstructed. With the mean of NDVI transformed into amplitude and the phonological information transformed into phase, the law of NDVI variation by monthly, quarterly, annual were obtained. The annual integral of the time series of NDVI Fourier function (ANDVI) was obtained. The results show that an experience formula of ANDVI variation accompanies with mining time; A fast estimation formula of NPP by means of a coefficient of mining disturbance such as y.
Luan mine area annual integral of NDVI net primary productivity coefficient of mining disturbance
MA Chao GUO Zeng-zhang ZHANG Xiao-ke HAN Rui-mei
Key Laboratory of Mine Spatial Information Technologies of State Bureau of Surveying & Mapping,Henan School of Coal Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China
国际会议
河南焦作
英文
583-588
2011-06-18（万方平台首次上网日期，不代表论文的发表时间）