| 南京市城市化与土地生态系统服务耦合度分析 |
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| 引用本文： | 渠玉莲,郭宗逵.南京市城市化与土地生态系统服务耦合度分析[J].安徽农业大学学报,2016,43(4):576-581. |
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| 作者姓名： | 渠玉莲 郭宗逵 |
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| 作者单位： | 南京工业大学经济与管理学院,南京,211816;南京工业大学经济与管理学院,南京,211816 |
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| 基金项目： | 国家自然科学基金（51339002, 51269017, 51169011, 51409288）资助。 |
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| 摘 要： | 在构建两个子系统指标体系-城市化与土地生态系统服务的基础上,通过信息熵法评价城市化子系统各评价指标的权重和综合城市化水平,及价值系数法计算各种土地利用类型的服务价值,并利用容量耦合度函数和耦合协调度模型来测定南京市2005-2014年城市化与土地生态系统服务之间的耦合度。结果表明,2005-2014年南京市城市化综合指数呈持续上升的趋势,且增长较快。土地生态系统服务综合指数两次呈现先下降后上升的趋势,波动幅度较大,其值介于0.2~0.8之间。研究期内南京市城市化与土地生态系统服务耦合度值均较大,介于0.6~1之间,2005年处于磨合阶段,2005年后进入高水平的耦合阶段。耦合协调度值变幅在0.53~0.73之间,研究期内南京市城市化与土地生态系统服务一直处于高度协调的状态,但呈现出明显的阶段性特征:2005-2009年呈上升趋势;2009-2012年呈下降趋势;2013-2014年协调度慢慢回升。
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| 关 键 词： | 南京 城市化 生态系统服务 耦合度 |
| 收稿时间： | 2016/2/23 0:00:00 |
Coupling degrees of urbanization and land ecosystem services of Nanjing city |
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| QU Yulian and GUO Zongkui.Coupling degrees of urbanization and land ecosystem services of Nanjing city[J].Journal of Anhui Agricultural University,2016,43(4):576-581. |
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| Authors: | QU Yulian and GUO Zongkui |
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| Institution: | School of Economics & Management, Nanjing Tech University, Nanjing 211816 and School of Economics & Management, Nanjing Tech University, Nanjing 211816 |
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| Abstract: | Based on the construction of two subsystem index systems, urbanization and land ecosystem services, the coupling degree of urbanization and land ecosystem services from 2005 to 2014 in Nanjing were determined using the capacity coupling degree function and coupling coordination degree model through the quantitative integration measure to calculate the service value of the various land use types. The results showed that the comprehensive index of urbanization in Nanjing showed a rising trend from 2005 to 2014. In addition, the index of land ecosystem services increased at?the?first?stage, and?then decreased twice and it showed significant fluctuations with the value between 0.2 and 0.8. Over the years, the coupling degree of Nanjing was large, which was between 0.6 and 1. It was in a break-in period only in 2005, then reached a high level of coupling phase after 2005. When the coupling coordination degree was between 0.53 and 0.73, the urbanization and land ecosystem services were in a state of highly coordinated in Nanjing. However, it showed the obvious periodic characteristics: an upward trend from 2005 to 2009 and a downward trend from 2009 to 2012. The coordination degree slowly picked up from 2013 to 2014. |
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| Keywords: | Nanjing city urbanization ecosystem services coupling degree |
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