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Desertification and restoration could be assessed by long time-series vegetation index at regional scale. In this study, a new approach for desertification assessment based on analysis of NPP and MNPP change derived from the time-series MERIS NDVI data was promoted. Desertification and restoration in Xilin Gol League, Inner Mongolia, China were assessed and monitored during 2003 to 2011 by using the...
Vegetation fraction is an important indicator of ecosystem change, a high spatial and temporal resolution vegetation fraction product was essential in many spatially distributed models. Recent developments of coarse resolution remote sensing (e.g. MODIS) provide the potential to estimate the vegetation fraction with a high temporal resolution. However, coarse resolution products usually provide insufficient...
With parallel processing, nonlinear mapping, adaptive learning and fault-tolerant capacities, neural net has always been the ideal tool for establishing the complex relationship between complex spectral information and target parameters. We constructed a two-layer BP neural net model with three input nodes, two hidden layer nodes and one output node. Based on which, sparse vegetation coverage in Minqin...
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