Assessing The Land Use Change And Land Ecological Security Of Chongren County

The rapid development of towns and industries indirectly led to the deterioration of the ecological environment,especially the land ecological environment,people began to do such research and related research.At present,the study of ecological security is confined to the study of large regional scale.The research results only play a macro guiding role,and there is little research on the ecological security of the county land.Therefore,this paper chooses Chongren County,Jiangxi Province as the research object,According to the remote sensing images of 2005,2009 and 2014,the land use data of Chongren County were obtained through remote sensing image processing function and GIS vector processing.By analyzing the land use change situation in Chongren County from 2005 to2014,and adopting the comprehensive index The ecological security situation of land in Chongren County from 2005 to 2014 was analyzed and analyzed according to the calculation results.Get the following results:(1)Land use changesAccording to the data analysis,the number of cultivated land in Chongren County in2005 and 2014 showed a trend of increasing first and then rising,and the number of construction land was increasing in this period.The number of forest land in the study period showed a decreasing trend,and the number of garden land and water area changed little during the study period.These data indicate that the land use level of the county is in the early stage of the development period,but the replacement frequency of the different land types in the late period of 2009 to 2014 is increased.This should be due to the continuous development of the county's economic society in recent years.The implementation of new urbanization,industrial construction,the scale of urban miningland continued rapid growth,but the government through relevant policies,such as the inefficient restoration of forest land to add arable land and other measures to protect the arable land,and people on the effective use of land concept has gradually strengthened,To cooperate with the relevant government's arable land protection work.(2)Evaluation of Land Ecological SecurityThe comprehensive ecological security value of Chongren County in 2005,2009 and2014 was 0.8129 and 0.8519 respectively,and the level of land ecological environment was in good condition at this level.But in 2009 and 2014,the pressure and response indicators are higher,indicating that the 2009-2014 population,economic and social impact on the land ecology,in order to better maintain the ecological stability of land,the government should co-ordinate from the natural,social Economic and legal policies,and to take corresponding measures to improve and maintain the coordinated development of socio-economic and ecological environment protection.(3)Suggestions on Maintaining Sustainable Development of Land Ecological SecurityIn order to make Chongren County to maintain the current ecological environment and achieve the sustainable development of the region,this paper puts forward the following suggestions for the possible problems such as land use analysis and land safety evaluation: 1)Moderate control of the population,ease the pressure on people;2)Optimize local land use structure,and maintain local ecological security;3)Reduce agricultural pollution,the development of characteristic agriculture;4)Enhance the awareness of ecological security,increase investment in eco-environmental protection;5)Establish and improve laws and regulations,improve the ecological supervision system.