A Research On The Temporal And Spatial Evolution Of Ecological Service Value Of Cultivated Land

As is known to all,agriculture is the foundation of production and development of social,and cultivated land is the cornerstone of sustainable development of agriculture.Therefore,the great role of cultivated land in social and economic development can not be ignored.With the development of social economy,multi functional attributes of the cultivated land are gradually being developed,and the understanding of the land is just stay on the previous view that cultivated land only as raw material output and,ignoring the rest of its features,such as ecological function,social security function etc..Based on this,this paper studies the spatial and temporal changes of ecological service value of cultivated land in Wuhan urban agglomeration,The main contents are as follows:The first chapter describes the background of the research,and in order to sort out the relevant research at home and abroad in order to find a breakthrough;The second chapter mainly introduces the related theories which will be used in the research,and introduces the research area and the division of the research units,which provides the theoretical basis for the smooth development of this paper;The third chapter is an important part of this paper,this part calculates the Wuhan urban agglomeration of each land ecological service function(climate regulation,water conservation,water conservation,environmental purification)value,the next step for the analysis of time and space to pave the way for;The fourth chapter is the main part of this paper,from two aspects of time and space of Wuhan urban agglomeration of land ecosystem service value is analyzed,the conclusions are as follows: 1)by the time change,2004-2009 years,the Wuhan urban agglomeration of land ecosystem service value obtained considerable development,the overall growth rate of 14.4% in 2009;-2014 is a more serious fluctuations,the overall growth rate of only 1.14%.2)by the spatial change of view,in 2004-2009 years,the Wuhan urban agglomeration of land ecosystem service function value of high value area and present "along the southeast-Northwest" attenuation trend,while the low value area to the middle regional agglomeration;2009-2014 years,the further deterioration of the Wuhan urban agglomeration of cultivated land ecological service value,the the high value area compared to the previous order(2004-2009)acceleration attenuation,and the low value area in central and southern part of the "expansion of the trend.The fifth chapter is the last chapter of this paper,which summarizes the results of the fourth chapter,and puts forward some suggestions for improvement.