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Recently, multi-source remote sensing data and their derived features such as vegetation indices, texture metrics have been frequently applied to quantitatively estimate forest above-ground biomass (AGB). However, it is still challenging to efficiently select the optimal features for modeling the forest AGB. In this study, a fast, efficient and automatic method has been proposed, called as k-nearest...
The commonly applied triangular method was used to estimate regional evapotranspiration(ET). Based on the parameters of land surface, the applicability of NDVI-land surface temperature(NDVI-LST) and NDVI-albedo triangular methods were validated using the landsat7 data and the Heihe Watershed Allied Telemetry Experimental Research(HiWATER) observed data. Considering the affecting of soil moisture and...
Hetao Irrigation District, located in Bayan nur city of Inner Mongolia, is one of the largest irrigation areas in Asia. Because of little rainfall and large evaporation, lack of water resources has become one of the main factors which restrict the development of the local economy. Real-time monitoring of the actual irrigation area can contribute to efficient allocation of water and soil resources...
Based on the data that obtained from Liaoning Province environmental quality statistics and LANDSAT 5 satellite image resolution data, eco-environmental quality of Liaoning coastal highway area was respectively assessed with expert assessment method and support vector machine model. Firstly, five assessment indexes of eco-environmental quality were defined which are organism abundance index,vegetation...
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