Marginalization Of Agricultural Land And Farmer Behavior In Southeast Hilly Region

Marginalization of arable land is not only an important form of LUCC,but also the new develop direction of LUCC research.The importance of food safety and protection of arable land,also make marginalization of arable land theory attracted the attention of domestic as well as foreign academic.China's total arable land(135.0573million ha)currently accounts for 8.69%of the world's total arable land,and it is this 8.69 percent of the arable land needed to feed the country which accounts for 18.86%of the world's total population.According to the ministry of environmental protection,16.1%land in China has been polluted and never suitable for planting.Therefore the problem of marginalization of arable land is more worthy to study in China.In the process of rapid urbanization,more and more farmers do not want to engage in food production,so it is a common phenomenon that large number of arable have been abandoned(including seasonal abandonment).It leads to a serious threat to national security and ecological balance of food security.Affecting the sustainable development of agriculture in China,even shaking the foundation of social stability.So the research of marginalization of arable land can meet the need of ensure food security,protect agricultural productivity and farmers' livelihood security.In this study,on the basis of elastic theory,the marginalization of arable land is divided into three types:(1)Physical marginalization which refers to the economic productivity of arable land disappeared and exit from the food production process.More specificly,this process can be defined as positive physical marginalization.On the contrary,due to land reclamation or remediation,the construction land can be returned to arable which is defined as negative physical marginalization;(2)Natural marginalization which is due to the limit of natural factors,coupled with the impact of human activity,the economic benefit of arable land is declined and do not have enough production capacity.It is defined as a positive nature marginalized,otherwise defined as the negative natural marginalization.(3)Economy marginalization which represents the relative decline in production capacity,because such kind of arable land can be used as non-food production in transition.This process can be defined as positive economic marginalization,and otherwise can be defined as negative economic marginalization.On this basis,the paper is designed to complete the systems approach of marginalization of arable land research.First,from the net income of arable land use,sown area of grain and land use intensity this three aspects to estimate the risk of marginalization of arable land.Then using the standard deviation ellipse,3D kernel density and spatial trend analysis method to analysis the spatial distribution,spatial agglomeration/dispersion and space trend of three different types of marginalization of arable land.This research selected Lianjiang County of Fujian Province in southeast hilly area of china as the research area.And finished some research on diagnosising the marginalization of arable land,analysising the driving forces,identifying the spatial and temporal characteristics of marginalization of arable land and tried to find how land use policy affect the process of marginalization,Farmers' behavior affected by the marginalization of arable land has been studied.Study suggests that:(1)the process of marginalization in Lianjiang County can be divided into two stages,the first stage of arable land marginalization is from 1988 to 2000,the second period is from 2000 to 2012.During this process,unit costs net income fell from 0.12 yuan to 0.08 yuan or less.From 1996 to 2008,grain sown area has significantly decreased,dropping by more than 13%.Land Use Intensity from 47,000 yuan/ha down to 37,000 yuan/ha.The main factors.(2)The impact of arable land into food production Lianjiang is new construction farmland.This positive physical marginalization,making arable land for food production capacity of the economy disappear completely,completely exit out of food production.In addition,the negative economic marginalization has greater impact than the negative physical marginalization and negative natural marginalization.This shows a lot of parkland,woodland economy is finishing became arable land for food production,which over the years with the local land management work actively,especially to promote a high standard of basic farmland construction projects related.(3)The degree of spatial variation of arable land can be devided in five periods,respectively,a difference of 3.75%,12.1%,30.7%,42.0%,54.8%.Divided ription of land use policy to forward the marginalization of arable land concentration degree has a positive correlation impact and affect the results in 20 years showed a gradual increasing trend.Negative arable actual situation of marginalization and assuming no policy implications of the case before contrast.arable land utilization spatial variation in five periods,respectively,a difference of 11%,16%.12%,27.0%,26%.In the case of pure natural conditions,the implementation of the land policy of marginalization negative agglomeration of arable land has a positive impact,the impact of the effect of the increase in the current 20 years to reduce.Specifically,the area most affected developmental land policy,environmental protection and food security based on the type of policy space forward arable land marginalization lesser degree of influence on the degree of agglomeration forward marginalization of arable land use spatial agglomeration degree,and both effects closer.In addition,the negative environmental impact of land-use policies to spatial extent of arable land marginalization largest gathering of regional developmental and food security policy of the negative type marginalization of arable land space Agglomeration impact is relatively small,and both the effect close.By contrast,we found that land use policies for the negative impact of the negative impact of changes to the marginalization of arable land is less than.Therefore,in the land use policy development process,the need to fully study the potential effects of different types of land use policies on land use change and achieve different types of land use policies synergistic combination.(4)The study area are smallholder farmers farming mode basic family unit.Also because of the hilly landscape of farming land in the spatial distribution of more dispersed.Farmers in different types of employment,physical marginalization of farmers no longer engaged in basic food production labor,marginalized farmers appear less natural phenomenon non-farm payrolls,the economic marginalization of farmers and business behavior more prominent.In the scope of activities and distance,physical marginalization of farmers scope of activities and distance is greater than the other two types of farmers,marginalized farmers and natural range of motion is much smaller than the other two categories of farmers.This study combed and obtained internal logic of these three types of marginal arable land,take the theory of marginalization of arable land to a new level.On this basis,farmers in the context of marginalization is also divided into physical marginalization of farmers,natural marginalization and economic marginalization of peasant farmers.Using temporal behavior theory,the behavioral characteristics of three different types of farmers,for the farmers to conduct research provides an innovative research ideas and methods.The research reveals spatial-temporal process and driving forces of marginalization of arable land.The research suggested that relevant land use policies shall be formulated based on characteristics of the marginalization of arable land in different types so as to prevent,monitor and control the marginalization of arable land.