An Analysis on Efficiency Assessment and Influencing Factors of Low Carbon Cities

• Main Authors: Wei-HanCheng, 程韋涵
• Other Authors: Hsueh-Sheng Chang
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/38988907007268490942

碩士 === 國立成功大學 === 都市計劃學系碩博士班 === 100 === The importance and priority between economic development and environmental protection has been an important issue in the process of urban development. Low carbon city is proposed based on the checks and balances between environmental protection and social economic development. And the concept of low carbon city is that people who live in the city create better quality of life through less environmental consumption within the carrying capacity to ensure the efficient use of environmental resources. Recently, in the face of global climate change and energy depletion predicament, low carbon city has become the goal of many cities. However, government departments often assess the effectiveness and feasibility of policies by economic efficiency when they carry out the sustainable or low carbon policies, while ignoring the impacts of these policies for the environment and the whole city. And the evaluation of low-carbon city is often by various carbon reduction indicators.This way lacks link between the environment and the economy. Therefore, this paper tries to take the framework of eco-efficiency that contains considerations of both economic and environment and take the core concept of low carbon city─ “Obtain the optimal economic development and quality of life with the least environmental resources” to establish an efficiency evaluation framework of low carbon city. And adopts data envelopment analysis as a tool to analyze the urban efficiency performance. According to the result of the empirical analysis, the state of urban development of Taiwan's cities and counties can be divided into four groups: (1)Efficient cities and counties whose resource consumption is still within the carbon carrying capacity: this group which is the most sustainable and closest to low carbon cities includes Hsinchu County, Pingtung County, Penghu County, Hualien County and Taitung County. (2)Inefficient cities and counties whose resource consumption is still within the carbon carrying capacity: this group icludes Yilan County, Miaoli County, Nantou County, Tainan County, Kaohsiung County, Chiayi County, and Yunlin County. (3)Efficient cities and counties whose resource consumption is over the carbon carrying capacity: this group icludes Hsinchu City and Chiayi City. (4)Inefficient cities and counties whose resource consumption is over the carbon carrying capacity: this group includes Taichung City, Taipei City, Tainan City, Keelung City, Kaohsiung City, Taipei County, Taichung County, Taoyuan County and Changhua County. These cities and counties overuse the environmental resources, and the excessive use is not in exchange for the corresponding urban benefits. It shows the resource abuse and blind development of them. This group is the most inconsistent with the concept of low carbon city. And then for the non-efficient cities, this paper explores the effectiveness of policies from the viewpoint of eco-efficiency rather than the previous economic efficiency to explore what strategies will enhance the eco-efficiency. The analysis result shows that “the resource recovery rate” has a positive linear relationship with the efficiency. There is a N-shaped cubic relationship between “the percentage of green area” and the efficiency. And there is an inverted N-shaped cubic relationship between “the urban density” and the efficiency. Non-efficient cities and counties could develop their low carbon strategies from these factors to provide the reference of low carbon development and sustainable urban management.