Land Ecological Security Of Zhouzhi County Based On DPSIR-RBF Model Evaluation And Prediction Research

A healthy land ecosystem is the material foundation for the construction of ecological civilization under the new situation,and conducting research on land ecological security is a practical need for the grand goal of building a "beautiful China".In recent years,land ecological problems have become increasingly prominent,and related research on land ecological security has become a current research hotspot.Zhouzhi County is a pilot demonstration county for the construction of national key ecological functional areas and national main functional areas,carrying the function of a natural barrier,and its ecological status is self-evident.The ecological environment of Zhouzhi County is fragile and sensitive to human disturbance and natural disturbance.With the economic development,the continuous expansion of construction land has brought certain pressure to the land ecosystem of Zhouzhi County.The assessment and prediction of the land ecological safety of Zhouzhi County will ensure the coordinated development of the natural environment and the social economy,promote sustainable development,and promote the country.The construction of ecological civilization is of great significance.This article takes Zhouzhi County as the research area,and refers to relevant research at home and abroad,combined with the special ecological background of Zhouzhi County,based on the DPSIR model to build an indicator system,namely "driving force(pressure)-pressure(state)-state(impact)(Impact)-Response(Response)model,using the TOPSIS model to evaluate the state of land ecological security in Zhouzhi County from 2008 to 2018.Based on the evaluation results,the radial basis function(RBF)is used to predict the development trend of land ecological security in Zhouzhi County from 2019 to2023,and to provide targeted recommendations for the coordinated development of the ecological environment and social economy of Zhouzhi County.The main conclusions of this article are as follows:(1)From 2008 to 2018,the overall ecological security of land in Zhouzhi County showed an upward trend,from 0.2189 to 0.6298,an increase of 0.4109.The security level of the security level gradually increased from "less safe" to "safer".It has gone through four stages of development;(2)from 2019 to 2023,the ecological safety level of Zhouzhi County remains at a "safer" level,but the score is slightly reduced from 0.6358 to 0.6237;(3)the TOPSIS evaluation model Quantitative analysis and evaluation of the county’s land ecological security status from 2008 to 2018,and the conclusions obtained are in line with the actual situation of the study area,and the research ideas and methods are feasible;(4)The RBF model is suitable for simulating complex nonlinear systems and is used in land ecological security In the prediction research,it can better simulate the changing characteristics of complex systems and can truly reflect the change trend of land ecological security in Zhouzhi County.