Spatial and Temporal Evolution of Land Use Conflicts and Their Key Influencing Factors in the Changjiang River Basin
A comprehensive scientific understanding of the spatial and temporal evolution of land use conflicts,as well as the identification of their key influencing factors,holds immense significance for promoting regional sustainable develop-ment.Taking Changjiang River Basin as the study area,where exists obvious conflicts on soil and water resources,a quan-titative model of land use conflicts was constructed by using the landscape pattern index to reflect the changes in the spatial location and intensity of land use conflicts in the basin from 2000 to 2020.Additionally,the random forest model was uti-lized to identify the important influencing factors,and biased dependency graphs were employed to illustrate the marginal responses of these factors to the changes in land use conflict intensity.The results show that(1)the overall land use con-flicts in the Changjiang River Basin were basically controllable from 2000 to 2020.High conflict values were distributed a-round the urban areas and along both sides of the river system.The urban-rural intertwining zone emerged as the primary spatial unit of conflict,with notable competition for water resources within the basin.The overall conflict intensity exhibited a pattern of midstream＞downstream＞upstream.(2)Among the influencing factors,social anthropogenic disturbances such as distance from major roads,population density,and water resource conditions such as average annual precipitation and distance from major water systems played key roles in the change of land use conflict intensity.(3)A nonlinear re-sponse relationship existed between the influencing factors and land use conflict intensity,with the agglomeration effect of the population and the constraints of the natural background being significant reasons for this nonlinearity.The Changjiang River Basin needs to develop a reasonable water allocation plan,and at the same time,strictly control the urban-rural land use conflicts brought about by excessive socio-economic development.
land use conflictspatial and temporal evolutionrandom forest modeldriving factorChangjiang River Ba-sin
万方数据
维普
