城鎮(zhèn)化背景下洛陽建成區(qū)擴(kuò)張與耕地動(dòng)態(tài)變化研究
發(fā)布時(shí)間:2018-04-10 12:51
本文選題:城鎮(zhèn)化 + 建成區(qū); 參考:《鄭州大學(xué)》2014年碩士論文
【摘要】:城鎮(zhèn)化是社會(huì)經(jīng)濟(jì)發(fā)展的必然,也是發(fā)展的重要途徑,更是工業(yè)化、現(xiàn)代化的重要標(biāo)志。20世紀(jì)90年代中期以來,我國城鎮(zhèn)化率達(dá)到30%,,城鎮(zhèn)化進(jìn)入快速發(fā)展階段。城鎮(zhèn)人口急劇增加,規(guī)模迅速擴(kuò)大,建設(shè)用地需求量大增。我國耕地總面積不到18.3億畝,人均耕地面積1.38畝,僅為世界平均水平的40%,人均后備耕地資源0.1畝,嚴(yán)重不足。隨著城鎮(zhèn)化水平的提高,城鎮(zhèn)擴(kuò)張與耕地保護(hù)之間的矛盾不斷加劇,如何在保障糧食安全的基礎(chǔ)上,滿足建設(shè)用地需求,實(shí)現(xiàn)土地的高效利用,促進(jìn)城鎮(zhèn)化的快速健康發(fā)展,成為我國城鎮(zhèn)擴(kuò)張研究的重點(diǎn)內(nèi)容。 本文以洛陽市區(qū)和偃師市為研究對(duì)象,以1980、1990、2000、2006和2013年五個(gè)時(shí)期遙感影像為基礎(chǔ)數(shù)據(jù),運(yùn)用ENVI4.7、ArcGIS、Excel和MATLAB等軟件,通過空間疊加、統(tǒng)計(jì)分析和灰色關(guān)聯(lián)度計(jì)算等技術(shù)方法,對(duì)城鎮(zhèn)化背景下洛陽建成區(qū)城鎮(zhèn)擴(kuò)張時(shí)空變化特征、驅(qū)動(dòng)力分析以及偃師市建設(shè)用地?cái)U(kuò)張與耕地動(dòng)態(tài)變化進(jìn)行了研究。 主要結(jié)論如下: 1、從數(shù)量增長、形態(tài)變化、擴(kuò)張合理性、空間變化特征4個(gè)方面進(jìn)行研究,發(fā)現(xiàn)洛陽市建成區(qū)擴(kuò)張階段性特征明顯。 1980-2013年間,洛陽市建成區(qū)面積由91.29km2增加到226.24km2,1980-2000年低速擴(kuò)張,2006-2013中速和快速擴(kuò)張。1980年研究區(qū)城鎮(zhèn)建設(shè)用地緊湊度較高,1980-1990年城鎮(zhèn)擴(kuò)張以外部延伸為主且擴(kuò)張形態(tài)規(guī)則性較差;1990-2013年城鎮(zhèn)擴(kuò)張以邊緣及內(nèi)部填充為主,城鎮(zhèn)擴(kuò)張集中性增強(qiáng)。城鎮(zhèn)擴(kuò)張與人口增長不協(xié)調(diào),1980-2000年城鎮(zhèn)擴(kuò)張遠(yuǎn)遠(yuǎn)趕不上人口增長對(duì)建設(shè)用地的需求,2000-2013年城鎮(zhèn)擴(kuò)張速度明顯高于人口增長速度。1980-2013年洛陽建成區(qū)擴(kuò)張表現(xiàn)為“周邊外溢”、“跳躍發(fā)展”和“內(nèi)部填充”等空間拓展模式。 2、從地形地貌、文化、“國家政策”、“社會(huì)經(jīng)濟(jì)”3個(gè)方面,總結(jié)出洛陽建成區(qū)布局發(fā)展特征及主要驅(qū)動(dòng)力。 地形地貌、河流水系、文化遺址等自然地理?xiàng)l件限制著城鎮(zhèn)的發(fā)展與布局;城鎮(zhèn)化率、人口增長、產(chǎn)業(yè)結(jié)構(gòu)調(diào)整、居民收入水平、GDP以及固定資產(chǎn)投入等社會(huì)經(jīng)濟(jì)因素與城鎮(zhèn)擴(kuò)張關(guān)聯(lián)度依次降低;國家政策和城市規(guī)劃對(duì)城鎮(zhèn)擴(kuò)張有著重要的推動(dòng)和引導(dǎo)作用。 3、通過對(duì)偃師市建設(shè)用地?cái)U(kuò)張速度、強(qiáng)度及模式變化研究,探討建設(shè)用地?cái)U(kuò)張對(duì)耕地保護(hù)的影響。 偃師市建設(shè)用地?cái)U(kuò)張總體強(qiáng)度不斷上升由0.47增至0.79,建設(shè)用地?cái)U(kuò)張具有很強(qiáng)的空間集聚性,呈現(xiàn)出“一個(gè)中心,兩條軸線”的空間變化模式,受地形和區(qū)位影響,擴(kuò)張強(qiáng)度差異較為顯著;1990-2006和2006-2013兩個(gè)階段,偃師市建設(shè)用地?cái)U(kuò)張占用耕地比例較大,分別為80.1%和93%,加劇了耕地保護(hù)的壓力;針對(duì)研究區(qū)城鎮(zhèn)擴(kuò)張?zhí)攸c(diǎn),提出了相應(yīng)的耕地保護(hù)對(duì)策。
[Abstract]:Urbanization is the necessity of the development of social economy and an important way of development. It is also an important symbol of industrialization. Since the mid-1990s of the 20th century, the urbanization rate in China has reached 30%, and urbanization has entered a stage of rapid development.The urban population increases rapidly, the scale expands rapidly, the demand for construction land increases greatly.The total area of cultivated land in China is less than 1.83 billion mu, the per capita cultivated land area is 1.38 mu, which is only 40 mu of the world average level, and the reserve cultivated land resource per capita is 0. 1 mu, which is seriously insufficient.With the improvement of urbanization level, the contradiction between urban expansion and cultivated land protection is becoming more and more serious. On the basis of ensuring food security, how to meet the demand of construction land, realize the efficient use of land, and promote the rapid and healthy development of urbanization.It has become the focus of the study of urban expansion in China.This paper takes Luoyang city and Yanshi city as the research objects, taking the remote sensing images of the five periods from 1980 to 1990 to 2000,2006 and 2013 as the basic data, using the software ENVI4.7 ArcGIS-Excel and MATLAB, through space superposition, statistical analysis and calculation of grey correlation degree, and other technical methods, such as spatial superposition, statistical analysis and calculation of grey correlation degree, etc.Under the background of urbanization, the spatial and temporal characteristics of urban expansion in Luoyang built-up area, the driving force analysis, and the dynamic changes of construction land and cultivated land in Yanshi City were studied.The main conclusions are as follows:1. From the four aspects of quantity growth, morphological change, expansion rationality and spatial change, it is found that the stage of expansion in Luoyang City is obvious.During the period 1980-2013,The area of the built area in Luoyang City was increased from 91.29km2 to 226.24km2 from 1980 to 2000. The low speed expansion in 1980-2000 and the moderate and rapid expansion in 2006-2013. The compact degree of urban construction land in 1980 study area is higher than that in 1980-1990. In 1980-1990, the urban expansion was mainly external extension and the form of expansion was not regular.The expansion is dominated by edge and internal filling.Urban expansion increased centrality.Urban expansion and population growth in 1980-2000 the urban expansion was far from keeping up with the demand for construction land by population growth. The rate of urban expansion in 2000-2013 was obviously higher than that in population growth. The expansion of the built area in Luoyang from 1980 to 2013 was characterized by "peripheral spillover".Space expansion models such as "jump development" and "internal filling".2. From the three aspects of topography, culture, national policy and social economy, the characteristics and main driving forces of the layout and development of Luoyang built-up area are summarized.The development and distribution of cities and towns are restricted by natural geographical conditions, such as topography, river system, cultural sites, urbanization rate, population growth, industrial structure adjustment, etc.The social and economic factors such as the income level of residents GDP and investment of fixed assets decrease in turn and the national policies and urban planning play an important role in promoting and guiding urban expansion.3. The influence of construction land expansion on cultivated land protection is discussed by studying the speed, intensity and mode change of construction land expansion in Yanshi city.The overall intensity of construction land expansion in Yanshi has been rising from 0.47 to 0.79. The expansion of construction land has a strong spatial agglomeration, showing a "one center, two axes" spatial change model, which is affected by topography and location.The difference of expansion intensity is significant (1990-2006 and 2006-2013). The proportion of cultivated land occupied by construction land expansion in Yanshi is 80.1% and 933% respectively, which intensifies the pressure of cultivated land protection, aiming at the characteristics of urban expansion in the study area.The corresponding countermeasures of cultivated land protection are put forward.
【學(xué)位授予單位】:鄭州大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:F299.21;F323.211
【參考文獻(xiàn)】
相關(guān)期刊論文 前2條
1 林宏山;;城鎮(zhèn)化發(fā)展模式的國內(nèi)外比較與啟示[J];福建金融;2013年09期
2 林光彬;;我國縣域經(jīng)濟(jì)發(fā)展中的問題與對(duì)策[J];中央財(cái)經(jīng)大學(xué)學(xué)報(bào);2006年06期
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