Research On The Construction Of Land Ecological Protection Spatial Pattern Of Beihai-Qinzhou-Fangchenggang Region

The ecological protection space of the national land is an important part of the spatial planning and ecological civilization construction of the national land in China.In recent years,with the development of my country’s economy and society,the contradiction between people’s production and living space has become increasingly larger,and the ecological space has become more and more serious,causing great damage to the ecological environment.In this context,in the "Several Opinions on Establishing a Land and Space Planning System and Supervising Implementation" emphasized the overall planning and protection pattern of land and space development in the new era,and scientifically deploy production,life and ecological space.Beihai-Qinzhou-Fangchenggang Three Cities are located at the south end of Guangxi,and it forms the Beibu Gulf urban agglomeration with Nanning and other cities.The construction of the Beibu Gulf urban agglomeration is very necessary for the economic development of South my country in China.There are many and complicated ecosystems,and ecological environmental protection is particularly important.Therefore,it is necessary to build a spatial pattern of land ecological protection in Beihai-Qinzhou-Fangchenggang Region,protect and improve the ecological environment from the source,and promote the sustainable development of Beihai-Qinzhou-Fangchenggang Region.In view of this,with the support of sustainable development,the method of using literature analysis and building an evaluation model is used to comprehensively consider the current status of the ecological environment of Beihai-Qinzhou-Fangchenggang Region,combined with ecosystem service functions,ecological sensitivity,landscape connection,and connectivity and connection of landscapes,and The four evaluation indicators and minimum cumulative resistance models of habitat quality have carried out research on the construction of the land ecological protection spatial pattern in Beihai-Qinzhou-Fangchenggang Region.The main research results and conclusions of the article are as follows:(1)According to the definition of the existing land space,the connotation of the ecological protection space pattern of land and ecological protection is preliminarily defined,that is,the key ecological zone and key ecological corridor with specific ecological functions and the key ecological corridor jointly composed of ecological security protection.space.The key ecological zone of the country is a regional space with high habitual quality,strong landscape connectivity,important ecological service functions,and high ecological sensitivity.The key ecological corridor is a linear corridor that plays important connection effects on these key ecological areas of the country.(2)According to the connotation of the ecological protection space pattern,combined with the main ecological problems of the Beihai-Qinzhou-Fangchenggang Region,select the importance of the importance of ecological function,ecological sensitivity,landscape connection and habitat quality.system.The four evaluation indicators of the four evaluation indicators of the Beihai-Qinzhou-Fangchenggang Region,soil maintenance function,carbon fixed function and biological diversity protection function have been obtained.The ecological service functions in the research area are mainly high,moderate,and generally important.Among them,the area of highly important areas and extremely important areas of the key ecological zone of the country is 6078.78km2,and the proportion of the proportion is 29.54%;combined with Beihai-Qinzhou-Fangchenggang Region.The sensitivity of soil and soil loss,water quality pollution sensitivity,geological disaster sensitivity evaluation,and coastal erosion sensitivity evaluation results have obtained the results of ecological sensitivity evaluation in Beihai-Qinzhou-Fangchenggang Region.The ecological sensitivity in the research area is mainly based on mild sensitivity and moderate sensitivity.Among them,the high-sensitivity area and extremely sensitive area of the key ecological zone of the country are 5442.73km2,and the proportion is 26.34%;The overall connectivity,possibilities,coincidence probability of landscape,and the importance of plaques in the prevention of regional landscapes have obtained the results of the landscape connectivity evaluation of Beihai-Qinzhou-Fangchenggang Region.The landscape connectivity in the research area is mainly based on excellent and extremely poor differences.Among them,the area with extremely poor landscape connectivity reaches7573.98km2,accounting for 46.15%of the area of the research zone,accounting for the highest proportion.Among them,the well-connected and excellent area of the key ecological area of the country is 7143.15km2,and the proportion is 43.52%.The operation of the Invest model was evaluated by the rating of the quality of the Beihai-Qinzhou-Fangchenggang Region.Among them,the area of high quality,high quality and medium quality was 3132.64km2,11232.09km2,and 355.66km2,respectively,respectively.1.68%.Among them,the extremely high-quality and high-quality area of the key ecological area of the country is 14364.73km2,and the proportion is67.87%.The spatial superposition of the above results obtained the results of the importance of ecological protection in Beihai-Qinzhou-Fangchenggang Region,and comprehensively defined21 key ecological areas of the land based on Beiqin Defense Natural Border and geographical entities.The area and scale of the key ecological areas of the country are relatively large,with certain ecological benefits,and it is of great significance to ensure the safety of the regional ecological environment.(3)Filter the 13 large river ecological corridors including the Wuli River and Mingjiang River through the ARCGIS software;the four factors of the land use type,high range,slope,and vegetation coverage can be selected to build ecological resistance surfaces,and data data generated by the key ecological area of the country will be constructed.,Utilize the minimum cumulative resistance model to build 42 potential ecological corridors.On this basis,combining the actual width of the river corridor,with 0.5km as the width of the ecological corridor,maximize the ecological function of the key ecological corridor.The key ecological corridors are mainly forest land,which is conducive to the exchanges and migration between species and biocontrolllarials in key ecological areas of various nations.It is also conducive to ecological corridors to exert their ecological functions such as water source and storage functions.(4)The key ecological corridor of 21 key ecological areas and 55 key ecological corridors jointly constructed the land ecological protection space pattern of Beihai-Qinzhou-Fangchenggang Region.Among them,the total area of the key ecological zone of the country was 11281.11km2,accounting for 53.30%of the area of the research zone,covering the coverage of the area of the research zone,covering it,covering the area of the research zone,covering the coverage Most of the ecological land based on forest land,grassland,and wetlands.In order to implement targeted management measures for the key ecological areas of the country,the key ecological areas of the country are divided into a single functional and land key ecological zone,the key ecological zone of the dual functional land,and the key ecological areas of multiple functional land.The area of them is 2885.69km2,3441.62km2 and4953.80km2,the proportion of the total area of the key ecological areas of the country is 25.58%,30.51%,and 43.91%,respectively.The key ecological corridor contains 13 existing river corridors and 42 potential ecological corridors,with a total length of 3664.77 km,which realizes the network connection of the key ecological zone of the country,ensuring the complete structure of the land ecological protection space pattern in completeness,sex.(5)The distribution characteristics and ecological environment of the key ecological zone of the key ecological zone of the Beihai-Qinzhou-Fangchenggang Region,respectively,respectively,the key ecological zones of the water source,the key ecological zone of the soil and soil conservation,and the biological diversity of the three major types of districts.The corresponding control suggestions and countermeasures are proposed;combined with the distribution of key ecological corridors,we put forward corresponding protection and construction suggestions for the river ecological corridor and the potential ecological corridor.Finally,the protection suggestions are made from the perspective of supervision and management.