Analysis of landscape pattern and affecting factors in Huailai County Vegetation change based on land use/cover in arid oasis: A case study of the Eighth Division of Xinjiang Production and Construction Corps Effect of urban expansion on non-agricultural habitats in farmland landscape: A case study of Shenbei New District, Shenyang City, Liaoning Province Changes and driving forces of land use/cover and landscape patterns in Beijing-Tianjin-Hebei region Impacts of urbanization on urban agricultural landscape-A case study of Chang‘an District, Xi‘an City