Spatial-temporal evolution analysis of land use conflict in Chengdu metropolitan area based on landscape ecological index
Taking the Chengdu metropolitan area as the research area,based on the landscape ecological index,the land use conflict measurement model was constructed from three aspects of spatial complexity,spatial vulnerability and spatial stability.Four grades were identified as stable and controllable,basically controllable,basically out of control and seriously out of control,and their evolu-tion characteristics were quantitatively analyzed.The results showed that from 2000 to 2023,the area of land use types in Chengdu metropolitan area was characterized by"four types of land use rising and two types of land use decreasing".The area of cultivated land and water area was reduced as a whole,and the area of construction land,forest land,grassland and unused land was increased to varying degrees.The land use conflict index increased first and then decreased,and the land use coordination was relatively stable.The spatial distribution of land use conflicts was uneven,which was characterized by low in the west and high in the middle and east.The high-value areas of the land use conflict index were distributed in the urban center,and the low-value areas were mainly distribut-ed in the western mountainous areas.There were some differences in the conflict levels of different land use types.The conflict level of forest and grassland was low and the change range was small;the conflict level of construction land was high,but there was a tendency to ease.The level of land use conflict had a positive correlation and the aggregation effect was obvious.The overall distribution pattern of LISA agglomeration was high in the middle and low in the west.
land use conflictlandscape ecological indexChengdu metropolitan areaspatial-temporal evolution
NETL
NSTL
万方数据
