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Wetlands are a natural complex formed by the interaction of land and water systems. They play an irreplaceable role in biodiversity conservation, control of global climate change, water purification and mitigation of flood disaster. Thus, extracting information of wetlands has become very important. Recent years the rapid development of high spatial resolution remote sensing technology provides great...
This paper discusses the relationship between vegetation index and the above-ground biomass(AGB) of wetland and gets the AGB distribution in the study area, based on the Worldview-2 data and filed sampling data, establishing the East Dong Ting lake as the study area. The results shows that, multiple linear regression model (MLRM) test is significant (hitting a level of 0.000), while the model correlation...
Because of high spectral and temporal resolutions, large coverage and low cost, MODIS (Moderate Resolution Imaging Spectroradiometer) data has been widely used to extract information of forest types at regional, national and global scales. However, its coarse spatial resolution often leads to mixed pixels and impedes increasing classification accuracy of forest types. Spectral unmixing can, to some...
Non-wood forest is a kind of important forest resource. This paper focused on the information extraction of non-wood forest based on Advanced Land Observation Satellite (ALOS) data. Band characteristics were analyzed to get understanding of this data wholly by information content, correlation coefficient and Optimum Index Factor (OIF). A new set of data with eight bands were obtained by the fusion...
This paper takes Fengxian in Jiangsu Province as an example, on the basis of Landsat TM/ETM+ images of four different time (1988, 1995, 2001, 2006) and aerial photographs of 2005, meanwhile, auxiliary data such as administrative vector map of Fengxian, land use map and socio-economic statistical data of 1995,2006. supported by RS and GIS technology, land use spatial database and attribute database...
The hyperspectral remote sensing can detect the more detailed objects on earth surface for its hundreds of wave bands. This make it can be used for very detailed land cover mapping. The study area Yanhe river valley locates on the north west of China, its size of area is 7725 km2 and length 286.9km. The most objects on the area are vegetations including crops, trees, grasses, and water. For test the...
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