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Land degradation is an important environmental problem, it will become a threat to food security and the sustainable development of socio-economic systems, ultimately affecting the development of humans with global warming. Xinjiang is a key region in China, in which land degradation is very serious. Combed RS with GIS technology, based on the latest remote sensing data, analyzed the spatial distribution...
Soil organic matter (SOM) is an essential and dynamic variable in terrestrial ecosystem. This study used a method for mapping its spatial distribution by remote sensing technique. An image observed by Landsat 5 was used to estimate the spatial pattern of surface SOM in a town scale. The results showed that the concentration of surface SOM in study Jianshe town had a negative correlation (r =0.51,...
This paper analyzed the spatial pattern of cultivated land conversion in the Coastal Area of Pearl River Estuary based on RS and GIS technology. The results showed that the cultivated land area reduced rapidly under the pressure of urban expansion, and it was the main period about the cultivated land to reduce from 1988 to 1995. Other types of land also were converted to the cultivated land, which...
In this study, the decision tree (DT) classification technique was used to detect the land use changes based on the spectral characteristics of the samples and the spatial patterns of the six land use classes for two landsat images for the Shalamulun river catchment of China acquired in 1987 and 2001. And post-classification change detection technique was applied to map land cover changes. For validating...
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