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| 百年沈阳城市土地利用空间扩展及其驱动力分析 | |
| 引用本文： | 孙雁,刘志强,王秋兵,刘洪彬.百年沈阳城市土地利用空间扩展及其驱动力分析[J].资源科学,2011,33(11):2022-2029. |
| 作者姓名： | 孙雁 刘志强 王秋兵 刘洪彬 |
| 作者单位： | 1. 沈阳农业大学,沈阳110866／沈阳市规划和国土资源局,沈阳110003 2. 沈阳市勘察测绘研究院,沈阳,110015 3. 沈阳农业大学,沈阳,110866 |
| 摘 要： | 在GIS技术支持下，综合集成多时期、多来源、多尺度城市土地利用数据，通过面向对象信息提取方法，建立百年来沈阳城市土地利用空间扩展数据库。在此基础上，利用城市土地利用扩展速度模型、土地利用动态度模型和空间分析方法，研究百年来沈阳城市土地利用空间扩展的幅度、速度、强度和形态等演变特征。结果表明：不同时间段内沈阳城市土地利用扩展的速度和方向不均衡。1996年-2010年城区扩展最为迅速，为年均扩展15．61km2，1910年-1931年城区扩展最慢，为年均扩展0．88km2；建国以前沈阳城市空间主要向东西扩展，城区形态呈东西带状，建国后尤其是改革开放以来，城区以“跳跃式”扩展模式向南、向北扩展，城区形态呈掌状，有饼状发展的趋势。另外，从社会变迁视角，并运用因子分析方法定量分析其驱动力因素，结果表明：社会制度变迁、经济发展、产业结构调整和人口增长因素是影响沈阳城市土地利用空间扩展主要动因。 |
| 关 键 词： | 城市土地 空间扩展 土地利用变化 驱动力分析 |
Spatial Expansion of Urban Land Use and Its Driving Forces in Shenyang City over the Past Century |
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| SUN Yan,LIU Zhiqiang,WANG Qiubing and LIU Hongbin.Spatial Expansion of Urban Land Use and Its Driving Forces in Shenyang City over the Past Century[J].Resources Science,2011,33(11):2022-2029. | |
| Authors: | SUN Yan LIU Zhiqiang WANG Qiubing and LIU Hongbin |
| Institution: | Shenyang Agricultural University, Shenyang 110866, China;Shenyang Plan and Land Resources Bureau, Shenyang 110003, China;Shenyang Surveying and Mapping Research Institute, Shenyang 110015, China;Shenyang Agricultural University, Shenyang 110866, China;Shenyang Agricultural University, Shenyang 110866, China |
| Abstract: | With economic development of China, the process of urbanization and the scale of cities expedite greatly. Examining mechanisms of urban land expansion and analyzing urban expansion motivation in Shenyang City can provide a basis for rational allocation of land resources and future development plans there. This study built an urban land use expansion database for the last a hundred years in Shenyang City using an object-oriented information extraction method combined with a variety of data sources. On the basis of this, characteristics of the range, speed, and morphology evolution of urban land use expansion during the past century in Shenyang City were investigated using a land use velocity model of land use, a land use dynamic degree model, and spatial analysis methods. Results show that spatial extension of land utilization in Shenyang was considerably large over the last one hundred years. The total area of land use was only 21.05 km2 in 1910; however, it was 480 km2 in 2010, 22.8 times of that of 1910. Expansion was most significant during the period 2010-1996, showing an area of 218.6 km2, which was 60% of the total extension area during the study period. The least expansion occurred before the founding of the People's Republic of China, showing an area of 62.65 km2, accounting for 17% of the total amount. In general, the speed and direction of spatial expansion of urban land use was not balanced. The most rapid urban expansion took place during the period 1996-2010, with a mean annual expansion of 15.61 km2. Urban expansion was, however, most slow for 1910-1931, showing a mean annual expansion of 0.88 km2. In this context, spatial morphology of urban land use evolved gradually. Urban space expanded consistently to the external circle layer with time lapse, expanding mostly towards east and west. The urban morphology exhibited an east-west belt before the founding of the People's Republic of China, especially after the reform and opening up. In contrast, the city expanded towards south and north, showing a palm shape. The underlying factors driving the land use change were analyzed using the factor analysis method. Results indicate that social change is the dynamic factor for the land use expansion. Institutional change is the fundamental reason for the land use expansion. Economic transition is the intrinsic reason for the land use expansion, i.e., the land use expansion is a process of adaption to social and economic development. Population change is the direct cause of the land use expansion. Adjustment of the industrial structure primarily affects the evolution of land use spatial structure. |
| Keywords: | Urban land Spatial expansion Land use change Driving forces analysis |
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