Study On Layout Optimization Of High Standard Grainfield In Hebi City Under The Background Of Three-Ization Coordinated Development

The problem of cultivated land protection with the aim of grain security has been the research focus of land resource management,and it is also a major problem related to the national economy and the people's livelihood.With the rapid development of society and economy,the sustainable utilization of cultivated land resource must be confronted with various challenges brought about by the process of " three-ization"(industrialization,urbanization and agricultural modernization).Hebi city is located in the overlap region between the Central Plains Economic Area and the National Grain Production Core Area in Henan Province,and the strategy of three-ization coordinated development which is not at the expense of agricultural production and grain security becomes the inevitable choice of local government.Therefore,the layout optimization of High Standard Grainfield in Hebi city under the background of three-ization coordinated development is not only the inevitable course to ensure grain security,realize the protection of cultivated land and the sustainable utilization of cultivated land resources,but also is an important measure to ease land use conflicts,realize intensive and economical use of land resources.This paper takes Hebi city of Henan Province as the research area,and takes the three-ization coordinated development strategy as the research background.Comprehensive applying the theories and methods of management,economics,resource science and other related disciplines,with the help of 3S technology and using remote sensing,geo-information system and mathematical statistics software tools such as Envi,ArcGIS,IDRISI,Fragstats,SPSS,and we can get the main conclusions are as follows by the analysing of dynamic change,driving mechanism and layout stability of cultivated land,as well as the studying of arrangement and path of High Standard Grainfield layout optimization of Hebi city.1.Dynamic change regulation of cultivated land in various stages of three-ization coordinated development.In the formation stage of three-ization coordinated development(1993-2003)that the quantity of cultivated land in the studyarea increased,but the overall quality level showed a downward trend,yet in the lifting stage of three-ization coordinated development(2003-2013)that the quantity of cultivated land in the study area decreased,but the overall quality was significantly improved.The dynamic change of cultivated land resources in the study area shown differences not only in time series,but also in spatial variation,moreover the quantity and quality of cultivated land were shown as “two counties>three districts”.All in all,the dynamic change characteristics of cultivated land in Hebi city were basically consistent with the the phase characteristics of three-ization coordinated development,and with the advancement of the three-ization process,the utilization of cultivated land resources has changed from extensive to intensive.As we can see,the dynamic change regulation of cultivated land has important guiding significance for the layout optimization of High Standard Grainfield and protection of cultivated land resources.2.Dynamic change driving mechanism of cultivated land under the background of three-ization coordinated development.The process of agricultural modernization and regional economic development were the two core driving forces for the quantity and quality change of cultivated land in Hebi during the past 20 years.Based on the view of three-ization coordinated development can be subdivided into drivers of agricultural development which including the level of agricultural production,the progress of agricultural technology,the structure of agricultural planting and the characteristics of cultivated land location as well as drivers of economic development including the social economic level and the peasant economic condition,these six factors can be regarded as the "incendiary substances" that driven the dynamic change of cultivated land.What's more,cultivated land related policies and institutions were as the "combustion supporting agents" that has catalytic action,and the components of three-ization coordinated development were the "fire point" that eventually contributed to the temporal and spatial changes of cultivated land.The direct output of the cultivated land dynamic change was called “combustion emission” which will be a threat to cultivated land protection,thus the High Standard Grainfield layout optimization becomes the inevitable course to realize the intensive development and the inevitable choice for the regional cultivated land protection.3.Stability analysis of cultivated land layout under the background ofthree-ization coordinated development.Set the formation stage and lifting stage of three-ization coordinated development into two different scenarios,then prediction and comparison the future land use change in Hebi city by using CA-Markov model.If we choose to follow the established strategic direction of three-ization coordinated lifting stage,the quantitative results of cultivated land layout stability will correspond with the future planning goals,the spatial results will meet three-ization coordinated development direction and the quality results will reach the High Standard Grainfield demand of Hebi city in 2023.At the same time,there will be risk of cultivated land insufficient reserve resources and quality degradation in the future in Hebi city,which may bring challenges to the sustainable utilization of cultivated land resources in the region.Therefore,we can ensure the rational utilization of cultivated land resources from the policies and regulations level,improve the productivity of cultivated land from the resources allocation level,and coordinate the natural ecological benefits and social economic benefits from the system and mechanism level.Overall,the High Standard Grainfield layout optimization is expected to provide a guarantee for the sustainable utilization of cultivated land resources.4.Regional three-ization coordinated development strategy based on High Standard Grainfield layout optimization.The High Standard Grainfield layout optimization includes three aspects of content: spatial,sequential and hundred-thousand-ten thousand mu layout optimization,the above layout optimization results will affect the strategic choice of three-ization coordinated development in the study area.Pay attation to both cultivated land protection and industrialization,urbanization development,that is to say,the spatial layout optimization results accord with the quantity and quality requirements of cultivated land protection,not selected regions of High Standard Grainfield mainly around the“one core and two stars”,and the land can be used to meet the needs of the future urbanization and industrial expansion of external demand;Upgrade the land scale benefit and the level of agricultural modernization,the hundred-thousand-ten thousand mu layout optimization results reflect the “suitable for big is big,and suitable for small is small” principle,can help stabilize the land scale benefit achievements and promote production of agricultural modernization;Straighten out the relationshipbetween resource layout and green sustainable development,sequential layout optimization results have characteristics of “initial-term exploration—medium-term investmen—long-term stability”,and it can guarantee the optimized allocation of land resources and the sustainable utilization of cultivated land resources.5.High Standard Grainfield layout optimization path under the background of three-ization coordinated development.In order to realization and consolidation the the High Standard Grainfield layout optimization results,measures need to be strengthened in four aspects: Firstly,we should promote the transformation of middle and low yield fields and implement land consolidation projects to raise the quality level of regional cultivated land;Secondly,we should promote agricultural mechanization,technological innovation and agricultural technology services to meet the demand for technical services;Thirdly,it should form the High Standard Grainfield demonstration zone and create the high grain production standardization to improve grain production capacity;Fourthly,it needs to strengthen the grain field engineering,carry out water conservancy projects and supporting the transformation of irrigation areas to strengthen agricultural infrastructure construction.At the same time,constructive suggestions can be put forward from four aspects including the law and property rights,policy and system,economic mechanism and management system,to be specific,protecting cultivated land,promoting land circulation,strengthening planning regulation,completing regulatory system,innovating investment mechanism,constructing compensation system,improving the government management,fostering the professional organization.