ZHU Lixiang,LUO Zhanfu,WANG Qiwen,et al.Spatial-temporal Differences of Urban Land Use Efficiency and Its Evolution Characteristics Under Environmental Constraints in Gansu Province[J].Research of Soil and Water Conservation,2020,27(04):368-375.
环境约束下的甘肃省城市土地利用效率时空差异及其演进特征
- Title:
- Spatial-temporal Differences of Urban Land Use Efficiency and Its Evolution Characteristics Under Environmental Constraints in Gansu Province
- 文章编号:
- 1005-3409(2020)04-0368-08
- 关键词:
- 城市土地利用; SBM-Undesirable模型; 动态演进; 甘肃省
- 分类号:
- F293.2
- 文献标志码:
- A
- 摘要:
- 为了探究甘肃省城市土地利用效率时空差异和动态演进特征,构建环境约束下的城市土地利用评价指标体系,运用包含窗口的SBM-Undesirable模型和Kernel密度估计测算了2005—2016年环境约束下的甘肃省ULUE时空差异及其演进特征。结果表明:(1)甘肃省ULUE整体处于中等水平,城市间土地利用效率差异显著,整体呈现上升的趋势;(2)甘肃省ULUE空间分布上具有区域非均衡分布特征,中高效率城市不断增加;(3)甘肃省不同地区ULUE呈现南部民族>河西>陇东>陇中>陇南的区域差异特征;(4)甘肃省城市土地利用技术效率受到两种分解效率的影响,规模效率较纯技术效率对技术效率的贡献度较大;(5)甘肃省ULUE在地域空间上呈现两极分化的特征,区域空间差距呈现“加剧—减缓—加剧”的变化趋势。
- Abstract:
- In order to explore the spatial-temporal differences and dynamic evolution characteristics of urban land use efficiency in Gansu Province, the evaluation index system of urban land use under environmental constraints was constructed, and the spatial-temporal differences and evolution characteristics of urban land use efficiency was estimated by the SBM-Undesirable model with windows and Kernel density estimation in Gansu Province under environmental constraints from 2005 to 2016. The results showed that:(1)the total urban land use efficiency of Gansu Province was at a medium level, and the difference of land use efficiency between cities was observably remarkable, which showed an overall upward trend;(2)the spatial distribution of urban land use efficiency had distribution characteristics of regional non-equilibrium, and the number of cities with medium and high efficiency increased in Gansu Province;(3)the urban land use efficiency in different regions of Gansu Province presented the regional difference characteristics, which showed the order: the Southern nationalities>Hexi>Longdong>Longzhong>Longnan;(4)the technical efficiency of urban land use in Gansu Province was affected by two kinds of decomposition efficiency, and scale efficiency contributed more to technology efficiency than pure technology efficiency;(5)the efficiency of urban land use in Gansu Province was polarized in regional space, and the regional spatial disparity showed the trend of ‘aggravation—slowdown—aggravation'.
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相似文献/References:
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备注/Memo
收稿日期:2019-09-16 修回日期:2019-10-03
资助项目:国家自然科学基金(41771130,41361032)
第一作者:朱立祥(1993—),男,甘肃靖远人,硕士研究生,研究方向为城市发展与规划设计。E-mail:zhulxnwnu@163.com
通信作者:雒占福(1975—),男,甘肃通渭人,副教授,主要从事城市发展与规划设计研究。E-mail:luozf200@163.com