Ecological risk assessment of land use in the area along Changjiang River: a case study of Nanjing,China Study on the spatial differentiation of valley lands in Taihang mountain areas in Hebei Province Landscape regionalization of agro-pastoral transitional zone  using self-organizing feature maps (SOFM) network: A case study of Inner Mongolia Autonomous Region, China. Analysis of landscape pattern evolution characteristic in the hilly and gully area of loess plateau:a case study in Yan’an City, Shaanxi Province Multiple time scales analysis of spatial differentiation characteristics of non-point source nitrogen loss within watershed. Spatial coupling characteristics of eco-environment quality and economic poverty in Lüliang area. Impact of soil erosion on soil fertility and land productivity An assessment of the jiuzhaigou landscape recreational value and spatial variation Spatiotemporal differentiation of construction land expansion in a typical town of south Jiangsu Province. Catchment-based landscape patterns and divisions in mountain areas: A case study of Qixia City in Shandong Province Spatial differentiation characteristics of forest vegetation carbon stock in Sichuan Province