Comparison Of Land Use Changes Between Case Areas From The Developed East And Less Developed Central China

Land use and cover change (LUCC) has become an important part of globalenvironmental change and sustainable development research, regional comparison ofland use change has become an important means of LUCC dynamic monitoring basedon remote sensing and GIS technology.The thesis was accomplished on the basis ofparticipating in the public welfare industryScientific research special corpus"Geological disasters, environmental geology and land use relationships andinfluenceofWestern Economic Zone "of MLR.In this study,the Changsha city of the Changzhutan region and Quanzhou city ofthe Western Economic Zone across the Taiwan Strait were chosen as the case study.Diversity of Land use transfer,Tupu changes in land use, land use structure, the degreeof land use, land use dynamics and driving force and other aspects of the two urbanareaswas contrastively analyzed based on GIS and RS technology. Predicted theChangsha and Quanzhou City during2010-2030in the next20years of land usetrends on Markov model, and conducted a mathematical model based on two researcharea in the past, present and future land use change in the situation. The results showthat:(1) From1995to2010, the land use structure of Changsha is more stable thanthat of Quanzhou, and the intensity of land use change is less than Quanzhouthroughthe establishment of the transfer matrix analysis of land use. The growing trendinChangsha and the retardafter rising in Quanzhou, gradually narrowingdifferentiationof the two urban land use change. Both cities appeared as a large turnout well into construction land and other agricultural farmland and forest land,especially arable land.However, Changsha city concentrate mainly on changingagricultural land into construction land, andQuanzhou still have plenty of woodland,farmland and garden transfers between each other, which also led to a large area ofland use change in Quanzhou.(2)From1995to2010, the statistical datain eight major changesof tupu showedthat, the cumulative rate change of Changsha is higher than that of Quanzhou, and thetwo cities are showing a downward trend, decreased from93.15%to86.77%andfrom81.6%to67.33%respectively, which indicates more diverse.The largest changeof map type is mainly farmland, forest landtransfer to construction land in Changsha,while in Quanzhou, different from that of Changsha, the land use patterns changesbetween farmland, forest landtransferand construction land, according to the spatialdistributionof themap, land use change mainly focused on thelower place ofXiangjiang River waters surrounding terrain in midland,especially Changsha urbanand Wangcheng; Land use change in Quanzhou scattered throughout the study area,while construction land change focus on the southeast coast of the lower-lyingQuanzhou Bay, obvious location advantages areas.Topography and hydrological havesignificant impactson the spatial distribution of urban land use change of both cities.(3)Comparative analysis of land use change during1995-2030years based onMarkov and mathematical model, from the perspective of land use dynamic,Changsha City and Quanzhou arable land use are negative, which indicates that the farmland oftwo cities showed decreasing trend, and in the period of1995-2010, the value of thedynamic degree in Quanzhou is greater than Changsha.During the next20years, thedynamic change of cultivated landin Changsha is greater than in Quanzhou. Bothcities has positiveconstruction Land degrees, which suggestingan expanded state.Theconclusion comes after comparison, that dynamic index of construction land of bothcities show a clear downward trend.While the ratio of construction Land degree inQuanzhou is smaller, and reduce more rapidly. Up to2030, dynamic index will be1.94in Changsha, but only0.20in Quanzhou. According to the land use degree index,the greater valuein Changsha is mainly because of the larger proportion of arable landconstruction land area inChangsha, and consequentlyleading to a comprehensive levelof greater index growth than in Quanzhou. During1995and2010, synthetic degreeindex in Quanzhou grew faster than in Changsha, while in the period of2010-2030,the growth rate is less than Changsha City. The main reason is that, in the period of1995-2010, a large number of construction land expanded in Quanzhou, the rateincrease significantly; while in the period of2010-2030, construction land expansionin Quanzhou receive a larger limit,while as the economy continues to develop inChangsha, a large number of construction land expanded, resulting a smaller growthratein Quanzhou in the next20years.