Impacts of different surface covers on soil respiration in urban areas Urban ecological infrastructure based on ecosystem services:status,problems and perspectives Spatiotemporal dynamics of the bare soil cover in the Hetian basinal area of County Changting, China, during the past 35 years Analysis on urban heat island effect based on the dynamics of urban surface biophysical descriptors Remote sensing of impervious surface for the Beijing-Tianjin-Tangshan urban agglomeration: a comparison of different approaches The responses of hydrological indicators to watershed characteristics Flood return period analysis of the Bayi Reservoir Watershed based on HEC-HMS Model Quantitative analysis on the relationship of urban impervious surface with other components of the urban ecosystem Urban landscape pattern study based on sub-pixel estimation of impervious surface