Analysis of Urban Expansion and Driving Forces in Xuzhou City Based on Remote Sensing

来源 :中国矿业大学学报(英文版) | 被引量 : 0次 | 上传用户:silas20
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Based on satellite remote sensing TM/ETM+ images of Xuzhou city, land use forms of the city in 1987, 1994 and 2000 were extracted by using a neural network classification method. The expansion contribution rate and annual expansion intensity index of each administrative district have been calculated and the contribution rate matrices and spatial distribution maps of land use changes were obtained. Based on the above analysis, the characteristics of urban expansion from 1987 to 2000 have been explored. From 1987 to 1994, the expansion contribution rate of Quanshan district reached 46.80%, the highest in all administrative districts of Xuzhou city; Tongshan town was in a high-speed expansion period; both Quanshan and Yunlong districts were experiencing fast-speed expansion periods while the entire city was expanding at a medium-speed with an annual expansion intensity index of 0.98; the city spread eastwards and southwards. From 1994 to 2000, the expansion contribution rate of Quanshan district reached 43.67%, the highest in Xuzhou; the entire city was in a medium-speed expansion period with an annual expansion intensity index of 1.04; the city has rapidly been extended towards the southeast. According to the contribution rate matrices of land use changes, urban expansion mainly usurps cropland and woodland. A quantitative analysis found that population growth, industrialization and economic development are the primary driving forces behind urban expansion.
其他文献
In this paper, decision mechanism of credit-risk for banks is studied when the loan interest rate is fixed with asymmetry information in credit market. We give
建立内生增长模型研究金融系统资源配置功能如何促进经济增长。结论:通过提高“创新平均成功概率”,增加“创新投资比例”、“储蓄转化比例”和储蓄率,金融系统能够促进经济快速
利用灰色关联评估理论,提出了“通用量化评测系统”这一新概念,为此,提出了两个定理和一个推论,并进行了证明推导。
在阐述了两岸贸易发展及直航必然性的基础上 ,提出了大陆北方 /台湾班轮航线直航制的航线方案 ,分析预测了航线货流量 ,比较了中转制和直航制两种航线方案下班轮的航次时间 ,
投资决策会因项目的价值、成本支出及时间的变化而不同 .不确定性投资条件下的不可逆投资过程及投资机会的可延迟性 ,使得投资机会类似于美式看涨期权 ,其时间选择权具有价值
供应链后勤系统的性能对供应链总体活动的有效性以及供应链中各成员的行为都将产生重大影响。本文在总结有关基准分析概念、理论、实证研究以及各学术观点的基础上,以供应链后
Evaluating land use efficiency is critical to the revision of general land use planning. An assessment indicator system for regional land use efficiency was est
Freeze-thaw erosion is the third largest soil erosion type after water erosion and wind erosion. Restricted by many factors, few researches on freeze-thaw erosi
The approaches adopted so far in China to calculate reserves of ore deposits have largely been dependent on polygonal methods, including a cross-section method
In oil and gas industry, mud-pulse telemetry has been widely used to obtain directional data, drilling parameters, formation evaluation data and safety data, et