Analysis On The Synergy Effect Of Land Ecological Security And Intensive Utilization Based On Land Use Transition

The development of cities and the protection of ecological environment is a worldwide problem.However,due to the situation of "more people and less land",China is particularly outstanding.The contradiction between human and land especially between the expansion of urban structure land and the conservation of cultivated land is becoming more and more acute.The lack of attention to ecological construction in the process of urban construction restricts the development of economic efficiency and the prospect of sustainable utilization of urban land.In the process of construction,land resources should be rationally utilized to give full play to the dual functions of land carrying capacity and ecology.It is important to realize intensive utilization of land and pay attention to ecological security.This paper takes the three countries of Xiong'an New District as the research object,attempts to extract the center of gravity of land ecological function and land ecological security in the research area,and analyzes the change of the center of gravity.At the same time,the synergistic degree model of the composite system are constructed between land ecological security and intensive utilization to analyze the synergistic degree.Firstly,this paper conducts a quantitative analysis of the land use change of the research area from 2006 to 2016,calculates the land function centre of gravity,and analyzes the change of ecological function centre of gravity.Second,the land ecological security and intensive utilization are evaluated in the study area from 2006 to 2016,the focus of land ecological security is calculated,and its changes are analyzed.In the end,the order degree model of the subsystem and the synergistic degree model of the composite system are constructed between land ecological security and intensive utilization,and empirical analysis is conducted based on relevant data.According to the analysis,the land type of the study area are mainly divided into cultivated land and civil,industrial and mine land,and the proportion of cultivated land is more than 1/2 of the total area of the study area.From 2006 to 2016,different land use type in the research area changes significantly.During this period,the area of land use type increases continuously,such as civil,industrial and mine land and forest land.The living function centre of gravity and ecological function centre of gravity moves southward in the study area.During the research period,the comprehensive indexes of Rongcheng County and Anxin County increases first and then decreases,while that of Xiong County gradually decreases and don't change much.The comprehensive index of land intensive use from 2006 to 2016 shows an obvious upward trend in the three countries of Xiong'an New District.The results show that the intensive land use level in the research area is increasing year by year.The order degree of land ecological security and intensive utilization complex system in the three counties of Xiong'an New District are all below 0 level and in a low level cooperative state.In the future development process,we should pay more attention to land ecological security and improve the level of land ecological security.