The influence of landscape spatial difference on water quality at differing scales: A case study of Xili reservoir watershed in Shenzhen city Approach to spatial differences analysis of urban carrying capacity:a case study of Changzhou City The spatial-temporal disparities of water footprints intensity based on Gini coefficient and Theil index in China Assessment on urban ecological security spatial differences based on causal network:a case of Dalian City Spatial Growth Differences of Planted Populus simonii and Their Ecological Effects on Soil Moisture in Hilly Loess Regions Relationships between surface pollen and spores assemblages and environmental difference in the Southern Subtropics of Yunnan Province, China Assessment and spatial differentiation of sensitivity of soil erosion in Three Gorges Reservoir area of Chongqing A modified ecological footprint analysis to a sub-national area: the case study of Zhejiang Province