【摘要】：隨著工業(yè)化、城鎮(zhèn)化進(jìn)程的快速推進(jìn),城市空間的急劇擴(kuò)張,對國家糧食安全、耕地保護(hù)及生態(tài)環(huán)境造成較為嚴(yán)重的威脅,同時(shí)建設(shè)用地的無序擴(kuò)張?jiān)斐沙鞘锌臻g結(jié)構(gòu)松散,用地閑置或浪費(fèi)嚴(yán)重,土地利用效率低下。上述問題的產(chǎn)生迫切要求城市增長模式向外延擴(kuò)張與內(nèi)涵發(fā)展相結(jié)合的模式轉(zhuǎn)變,向建設(shè)發(fā)展需要與生態(tài)保護(hù)統(tǒng)籌兼顧轉(zhuǎn)變,以實(shí)現(xiàn)城市可持續(xù)發(fā)展。作為城市增長管理最有效和方法之一,城市增長邊界在協(xié)調(diào)保護(hù)與發(fā)展需求之間起到了重要作用。本文在梳理并分析現(xiàn)有城市增長邊界相關(guān)研究的問題后,嘗試采用雙向路徑的規(guī)劃理念,綜合考慮城市增長與生態(tài)約束兩方面的因素,構(gòu)建城市增長邊界劃定的理論設(shè)計(jì)框架,并以廣州市為典型案例提出具體的劃定方法,以期完善城市增長邊界的理論體系與技術(shù)方法。本文以Arc GIS平臺(tái)為技術(shù)支持,以廣州市為實(shí)證研究區(qū)域,在分析了廣州市城市空間擴(kuò)張的基礎(chǔ)上,著重進(jìn)行雙向路徑下的廣州市城市增長邊界研究,結(jié)果表明:(1)各時(shí)期廣州市城市空間擴(kuò)張具有明顯的圈層式擴(kuò)張?zhí)攸c(diǎn),主要表現(xiàn)為從中心向外圍擴(kuò)張,而不同時(shí)期的擴(kuò)張活躍區(qū)域則以一定的時(shí)序從中心向外圍逐步推進(jìn),且高度活躍于北-北、北-東、東-東、南-東4個(gè)象限;(2)在眾多的影響因子中,自然環(huán)境是城市空間擴(kuò)張的基本限制因子,社會(huì)經(jīng)濟(jì)是城市空間擴(kuò)張的主要驅(qū)動(dòng)因子,區(qū)位交通對城市空間擴(kuò)張具有特定的指引性作用,宏觀調(diào)控則在一定時(shí)期內(nèi)決定了城市空間擴(kuò)張的方向與強(qiáng)度;(3)基于雙向路徑下劃定的廣州市城市增長邊界,在滿足未來城市建設(shè)發(fā)展需求的前提下,能有效地遏制建設(shè)用地向高生態(tài)敏感性區(qū)域蔓延與侵占,最大限度地實(shí)現(xiàn)生態(tài)用地保護(hù)與生態(tài)系統(tǒng)結(jié)構(gòu)完整維持;(4)與“正向規(guī)劃”、“反向規(guī)劃”相比,無論在方法體系上還是具體劃定方法上,雙向路徑下的城市增長邊界劃定均具有更高的先進(jìn)性與可操作性。而與廣州市規(guī)劃實(shí)踐相比,本文劃定的城市增長邊界在大體方向上具有一致性,但個(gè)別區(qū)域存在一定的差異,劃定結(jié)果整體而言更為精細(xì)、更具參考價(jià)值。
[Abstract]:With the rapid development of industrialization and urbanization, the rapid expansion of urban space poses a serious threat to national food security, cultivated land protection and ecological environment. At the same time, the disorderly expansion of construction land causes the urban spatial structure to be loose. Land use is idle or wasteful, and the efficiency of land use is low. The above problems urgently require the transformation of urban growth model to the combination of extension and intension development, to the need of construction and development and ecological protection, in order to realize the sustainable development of the city. As one of the most effective and effective methods of urban growth management, urban growth boundary plays an important role in coordinating protection and development needs. After combing and analyzing the problems of the existing research on urban growth boundary, this paper tries to construct the theoretical design framework of urban growth boundary demarcation by adopting the planning concept of two-way path and synthetically considering the two aspects of urban growth and ecological constraints. In order to perfect the theoretical system and technical method of urban growth boundary, this paper puts forward a specific method of delineating the city's growth boundary by taking Guangzhou as a typical case. This paper takes Arc GIS platform as the technical support, Guangzhou as the empirical research area, based on the analysis of the urban spatial expansion of Guangzhou, focuses on the two-way path of Guangzhou city growth boundary research. The results are as follows: (1) the urban spatial expansion of Guangzhou has obvious characteristics of layer expansion in each period, which is mainly manifested in the expansion from the center to the periphery, while the active areas in different periods are gradually advancing from the center to the periphery in a certain time series. It is highly active in four quadrants: North-north, north-east, east-east, south-east; (2) among the many influencing factors, natural environment is the basic limiting factor of urban spatial expansion, social economy is the main driving factor of urban spatial expansion, location traffic has a specific guiding role to urban spatial expansion. The macro-control determines the direction and intensity of urban spatial expansion in a certain period. (3) on the premise of meeting the needs of urban construction and development in the future, the urban growth boundary of Guangzhou defined under the two-way path can effectively curb the spread and encroachment of construction land into highly ecologically sensitive areas. Ecological land conservation and ecosystem structure maintenance should be realized to the maximum extent; (4) compared with "forward planning" and "reverse planning", the demarcation of urban growth boundary under two-way path is more advanced and operable than that of "forward planning" and "reverse planning". Compared with the planning practice in Guangzhou, the urban growth boundary delineated in this paper is consistent in general direction, but there are some differences in some regions, and the result of delineation is more precise and more valuable for reference.
【學(xué)位授予單位】：廣州大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：F299.27

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