Landscape Ecological Risk Assessment and Driving Factor Analysis for Huizhou Area Based on Land Use Change
Huizhou area is one of the areas with the most concentrated traditional villages,facing fluctuations in landscape ecological risk due to frequent tourism development activities.Assessing its landscape ecological risk can help guide regional high-quality development.With the use of land use data of 1990,2000,2010,and 2020,this paper reveals the spatial and temporal characteristics of landscape ecological risk by constructing a landscape ecological risk assessment model.In addition,it analyzes the effects of each driving factor on landscape ecological risk by employing a geodetector.The followings are obtained from the research.(1)The main land use type in the Huizhou area is woodland.In the four periods,cultivated land and woodland were reduced in area,while construction land had a continuously increased area.(2)Landscape types tended to be complicated and scattered in space,with fragmentation increasing.(3)High-and very-high-risk areas expanded significantly.Overall,landscape ecological risk showed an increasing trend,and risk centroids were relatively concentrated.(4)The landscape ecological risks of the four periods had positive correlations.The spatial aggregation effect was gradually reduced,which was consistent with the spatial distribution variation of landscape ecological risk.(5)The main driving factor of landscape ecological risk is slope.Factor interactions can better explain landscape ecological risk than single factors.
land uselandscape patternecological riskgeodetectorHuizhou area
NETL
NSTL
万方数据
