CHEN Roushan,WANG Feng.Land Use Benefit Evaluation and Barrier Diagnosis of Pearl River Delta from the Perspective of Low-Carbon Ecological City[J].Research of Soil and Water Conservation,2021,28(02):351-359.
低碳生态城市视角下珠三角土地利用效益评价及障碍诊断
- Title:
- Land Use Benefit Evaluation and Barrier Diagnosis of Pearl River Delta from the Perspective of Low-Carbon Ecological City
- 文章编号:
- 1005-3409(2021)02-0351-09
- Keywords:
- land use benefit evaluation; low-carbon ecological city; relative entropy combined weighting method; obstacle diagnosis; Pearl River Delta
- 分类号:
- F301.24
- 文献标志码:
- A
- 摘要:
- 为了促进土地生态化利用、落实“生态文明”战略,以珠三角9市为例,构建基于低碳生态城市视角的土地利用效益评价指标体系,采用相对熵组合赋权法、综合评价法和障碍度模型,探究了9市2010年和2017年土地利用效益时空演变特征和障碍因子。结果表明:(1)各市土地利用效益水平在空间上呈现“核心—边缘”结构,位于广深科技创新走廊的广深莞要显著优于其他城市。整体效益水平稳步提升,惠州增幅最大,肇庆增幅最小;(2)各市土地利用经济效益、社会效益和生态环境效益呈现明显的等级层次性,经济、社会效益增速快且均为正增长,生态环境效益增速小,部分城市出现下降情况;(3)要素层面各市得分具有不平衡性,经济发达效益差异扩大最明显;(4)经济发达、经济持续与社会和谐障碍度呈下降态势,社会发展、环境友好和节能减排呈上升趋势。地均财政收入、地均社会消费品零售总额、地均固定资产投资额为主要障碍因子。
- Abstract:
- In order to promote the ecological use of land and implement the strategy of ‘ecological civilization', we conducted land use benefit evaluation from the perspective of low-carbon ecological city development. Taking the nine cities in the Pearl River Delta city as an example, we constructed a land use benefit evaluation index system based on the perspective of a low-carbon ecological city. The relative entropy combination weighting method, comprehensive evaluation method and obstacle degree model were used to explore the spatial and temporal evolution characteristics and obstacle factors of land use benefits of the nine cities in 2010 and 2017. The results show that:(1)the land use benefit levels in cities had a ‘core—periphery' structure in space, and the three cities such as Guangzhou, Shenzhen and Dongguan located in the Guangshen Science and Technology Innovation Corridor were significantly better than other cities; the level of the overall benefit had been steadily increasing; the largest increase of benefit was found in Huizhou, and the smallest increase of benefit was found in Zhaoqing;(2)the economic, social and ecological environmental benefits of land use had shown obvious hierarchical levels in cities, and the economic and social benefits had increased rapidly and were all positive; the growth rate of ecological and environmental benefits was small, and some cities had experienced a decline in benefits;(3)the evaluation scores at the element level of cities were uneven, and the difference of economically developed benefit expanded most obviously;(4)the obstacle level of economic development, economic continuity and social harmony had declined during the study period, while social development, environmental friendliness, and energy conservation and emission reduction had increased; the average fiscal revenue, the total retail sales of social consumer goods, the investment in fixed assets were the main obstacle factors.
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备注/Memo
收稿日期:2020-04-04 修回日期:2020-05-02
资助项目:国家自然科学基金(41301078); 广州市哲学社科规划2020年度课题(2020GZYB40)
第一作者:陈柔珊(1997—),女,广东汕头人,学士,研究方向为土地资源利用。E-mail:847681580@qq.com
通信作者:王枫(1979—),男,湖南津市人,副教授,博士,主要从事土地资源开发利用与保护研究。E-mail:wfcjc@163.com