Dynamic Characteristic of Vegetation Coverage in the Three-River Source Region from 2000 to 2011 USING ORTHOGONAL TREND ANALYSIS TO DEVELOP THE LARGE AREA ECONOMIC FERTILIZATION MODELS Statistical characteristic analysis of soil PAHs in a coking contaminated site of China. Change trend of vegetation cover in Beijing metropolitan region before and after the 2008 Olympics. Remote sensing estimation of gross primary productivity and its response to climate change in the upstream of Heihe River Basin Research on the method of regional ecological security disaster trend analysis: a case study at the reaches of Liaohe River VEGETATION MONITORING AND TREND ANALYSIS: DISCUSSIONS ON QUANTITATIVE VEGETATION ECOLOGY Monitoring and assessment of vegetation variation in Northern Shaanxi based on MODIS/NDVI The spatio-temporal variations of vegetation cover in the Yellow River Basin from 2000 to 2010 Spatio-temporal variation of vegetation and analysis of its driving factors in Changbai Mountain National Nature Reserve Spatial and temporal distribution of water requirement of cotton in Xinjiang from 1963 to 2012 Research on spatio-temporal change of temperature in the Northwest Arid Area The spatiotemporal changes of vegetation cover in Beijing-Tianjin sandstorm source control region during 2000-2012 Spatio-temporal change of precipitation in arid region of the Northwest China Spatial and Temporal Change of Vegetation Cover in Xinjiang Based on FVC Spatial variability analysis of soil particle compositions and soil profile horizon in field