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遥感技术与应用  2019, Vol. 34 Issue (1): 197-206    DOI: 10.11873/j.issn.1004-0323.2019.1.0197
遥感应用     
中国半干旱区呼包鄂城市群地表覆盖等级结构时空特征研究
庄元1,2,薛东前1,匡文慧3,迟文峰4,潘涛5
(1.陕西师范大学地理科学与旅游学院,陕西 西安 710062;
2.包头职业技术学院经济贸易管理系,内蒙古 包头 014030;
3.中国科学院地理科学与资源研究所,北京 100101;
4.内蒙古财经大学资源与环境经济学院,内蒙古 呼和浩特 010070;
5.中国科学院新疆生态与地理研究所荒漠与绿洲生态国家重点实验室,新疆 乌鲁木齐 830011)
 
Study on the Pattern of Land Cover Hierarchy in Hohhot-Baotou-Ordos Cities in the Semi-arid Region of China
 Zhuang Yuan1,2,Xue Dongqian1,Kuang Wenhui3, Chi Wenfeng4,Pan Tao5
(1.School of Geography and Tourism,Shaanxi Normal University,Xi’an 710062,China;
2.Department of Economy and Management,Baotou Vocational & Technical College,Baotou 014030,China;
3.Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Science,Beijing 100101,China;
4.College of Resources and Environment Economy,Inner Mongolia Finance and Economics University,Hohhot 010070,China;
5.State Key Laboratory of Desert and Oasis Ecology,Xinjiang Institute of Ecology and Geography,Chinese Academy of Science,Urumqi,830011,China)
 
 全文: PDF(7335 KB)  
摘要: 以地处半干旱区的呼包鄂城市群为例,基于精确的建成区边界,采用决策树阈值分类模型与指数耦合模式,植被—不透水—土壤选取模型结合最小二乘像元混合分解模型等方法,构建半干旱区城市化过程中地表覆盖等级结构体系研究,从城市化—城市结构—城市组分揭示不同尺度21世纪以来的城市化过程。结果表明:①呼包鄂城市群2000~2015年的城市化过程较快,2005~2010年时段最为明显;总体空间格局呈现呼和浩特市外延式扩张,包头市填充式内展,鄂尔多斯市飞地式扩张为主;②不透水空间持续增加,在城区的占比由2000年的62.46%提升到2015年的75.40%;绿地空间呈现出波动变化的增加趋势,反映出半干旱区的城市化过程注重城市化与绿地协同建设;城市发展将裸土空间纳入,但城市化过程明显降低了裸土空间范围,有效提升了生态系统服务功能和人类福祉;③不透水组分密度变更顺序为低、中、高,增加明显的时段为2005~2010年;绿地组分呈现先降低后增加的变化特征,总体微幅增加,说明城区绿地得到提升;裸土组分密度呈现高、中、低的变化趋势,表明城市化扩张纳入了大量的裸土,随后裸土进一步转化为不透水面和植被,使城区内生态环境得到明显提升。总体而言,半干旱区的城市化过程可以有效降低周边裸土的面积,使其转化为可被利用的建筑和
关键词: 城市地表覆盖城市化体系时空演化中国半干旱区呼包鄂    
Abstract: Taking the Hohhot-Baotou-Ordos city group in semiarid area as an example,constructs a system of surface hierarchical structure in the semi-arid area for urbanization.It reveals the urbanization process of different scales since twenty-first Century.The results show that:(1) the process of urbanization in the study area is intense in 2000~2015,especially during the period of 2005~2010.Among them,the expansion of Hohhot city presents extension type,Baotou for filling type,and ordos for enclaving type.(2) The impermeable space continued to increase (low density -medium density -high density increasing),and its proportion in urban areas increased from 62.46% in 2000 to 75.40% in 2015.The green space shows an increasing trend of fluctuation,which reflects that the urbanization process in semi-arid area focuses on the coordinated construction of urbanization and green space.Although the development of the city includes the bare soil space,the process of urbanization obviously reduces the spatial scope of the bare soil,which effectively improves the ecosystem service and human well-being.(3) the change order of impermeable components density is low,medium and high.During this period,the composition of the green space was reduced first and then increased,and the overall micro amplitude increased,indicating that the green space in the urban area was promoted.At the same time,the density of bare soil components showed a trend of high,middle and low,indicating that urbanization was expanded into a large number of bare soil.Then bare soil was further transformed into impervious surface and vegetation,and the ecological environment in the urban area was significantly improved.
Key words: Urban land cover    Urbanization system    Spatial-temporal evolution    In semi-arid region of China    Hohhot-Baotou-Ordos cities
收稿日期: 2017-12-21 出版日期: 2019-04-02
ZTFLH:  TP79  
基金资助: 国家科技基础性工作专项重点项目(2014FY210100),内蒙古自治区科技重大专项,内蒙古自治区高等学校科学研究项目(NJSY16455),包头职业技术学院科研创新团队建设项目。
通讯作者:    
作者简介: 庄元(1981-),男,内蒙古通辽人,博士,副教授,主要从事区域与城市发展研究。E-mail:gis0101@126.com。
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引用本文:

庄元, 薛东前, 匡文慧, 迟文峰, 潘涛. 中国半干旱区呼包鄂城市群地表覆盖等级结构时空特征研究[J]. 遥感技术与应用, 2019, 34(1): 197-206.

Zhuang Yuan, Xue Dongqian, Kuang Wenhui, Chi Wenfeng, Pan Tao. Study on the Pattern of Land Cover Hierarchy in Hohhot-Baotou-Ordos Cities in the Semi-arid Region of China. Remote Sensing Technology and Application, 2019, 34(1): 197-206.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2019.1.0197        http://www.rsta.ac.cn/CN/Y2019/V34/I1/197

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