A Research Of Spatio-temporal Evolution And Driving Forces Mechanism Of Land Use In Tengzhou City

The spatial-temporal evolution of land use has become a hotspot in the analysis of environmental changes around the world.The wide suitability and diverse classification are the typical characteristics of the land in this study area.With the accelerating speed of urbanization and the continuous improvement of the level of urbanization,land use types have undergone significant changes,therefore,this paper selects Tengzhou as a typical area for research.Based on the original image,the three classification datas of the land use type(2009,2012,2015)of the study area was obtained,the four indicators of land amplitude change,degree change,speed change,and type transfer were used to quantitatively analyze the characteristics of the spatial-temporal evolution of land use in Tengzhou during the 7 years.Using principal component method to derive the main factors that caused the land use change in the study area were obtained,and the mutual mechanism relationship between the impact factor and land use change was found according to the multiple linear regression method,based on the characteristics of the spatial-temporal evolution of land use in the study area,countermeasures and suggestions were proposed.The research results are as follows:(1)During the period from 2009 to 2015,the land use amplitude change in Tengzhou shows that the construction land(increased 1319.78 hm~2)showed a continuous upward trend,with cultivated land(reduced 672.18 hm~2),garden land(reduced 20.99 hm~2),forest land(reduced 152.90 hm~2),and other agricultural land(reduced 140.25 hm~2),and unused land(reduced 333.52 hm~2)all showed a downward trend,and the land use structure was mainly cultivated land and construction land.In the 7 years,the construction land expansion was the most significant,with an increase of 4.13%.The unused land and other agricultural land decreased more quickly,with a decrease of-3.66%and-3.26%,respectively.(2)During the period from 2009 to 2015,the land use degree index in Tengzhou increased year by year,and it was 304.64 in 2015,it is measured by the limit standard of land use degree of 400,which indicates that the depth and breadth of land use in this municipality are already at a relatively high level;at the same time,land use of?L=1.42(change)and R=0.47%(rate of change)are both positive,indicating that the city's land use is in a period of development.(3)Between 2009 and 2015,construction land(0.70%)increased fastest,and unused land(-0.60%)fell fastest,the order of rapid of land use change was construction land(0.70%)and unused land(-0.60%),other agricultural land(-0.54%),garden land(-0.32%),forest land(-0.30%),cultivated land(-0.12%).(4)During the period from 2009 to 2015,the most important transformation direction of all types of land is the conversion of a large amount of cultivated land into construction land,with the most significant change in construction land,the amount of land transferred is 1636 hm~2,of which 1347.45 hm~2 is cultivated land,and the amount transferred is 316.21 hm~2,for cultivated land and other agricultural land.(5)The main impact factors of land use change in Tengzhou are economic development and urbanization,population and policies,among which the economic development has the strongest influence;economic development,urbanization,and population increase promote a large number of cultivated land to construction land,land use policies,and ecological control policies have promoted a constant change in the area of forest land and garden land,various drivers and lands have interacted with each other to form a driving mechanism for land use change in the area.(6)Countermeasures and suggestions for sustainable development of land use in Tengzhou:mitigating the extent of changes in cultivated land,adjusting the structure of land use;strictly controlling the scale of construction land,strictly prohibiting waste of land;promoting rational land use transfer,optimizing industrial development;observing childbirth laws and stabilizing population size;strengthening the dynamic monitoring of land use.