Urban expansion in china and its effect on cultivated land before and after initiating "reform and open policy"
文献类型：期刊论文
| 作者 | Zhang, ZengXiang1; Wen, QingKe1; Liu, Fang1; Zhao, XiaoLi1; Liu, Bin1; Xu, JinYong1; Yi, Ling1; Hu, ShunGuang1; Wang, Xiao1; Zuo, LiJun1 |
| 刊名 | Science china-earth sciences
 |
| 出版日期 | 2016-10-01 |
| 卷号 | 59期号:10页码:1930-1945 |
| ISSN号 | 1674-7313 |
| 关键词 | Urban expansion process in china Remote sensing Unbalanced regional development Population size Administrative ranks Cultivated land loss |
| DOI | 10.1007/s11430-015-0160-2 |
| 通讯作者 | Wen, qingke(wenqk@radi.ac.cn) |
| 英文摘要 | Urbanization in china has expanded at an unprecedented speed since the declaration of "reform and open policy" and presented many challenges. unbalanced regional development, appearance of super megacities and concomitant problems, and conflicts between urbanization and cultivated land protection are three critical problems that chinese urbanization has to face. to develop new plans for foreseeable future urbanization in china, it is critical to understand the evolving history of cities across china. this study maps urban expansion of 60 typical chinese cities based on large amount of remote sensing data and the labor-intensive image interpretation method, in order to understand the history of urban expansion from the 1970s to 2013. results showed that area of cities expanded 5.23 times compared to their area in the 1970s. urban expansion in china accelerated three times (1988-1996, 1999-2006, and 2009-2011) and decelerated three times (1997-1998, 2007-2008, and 2012-2013) over the 40 years. the urban area of south china expanded most significantly 9.42 times, while the urban area in northeast china expanded only 2.37 times. the disparity among different administrative ranks of cities was even greater than (3.81 times) the differences among different regions. super megacities have been continuously expanding at a fast rate (8.60-fold), and have not shown obvious signs of slowing down. the proportion of cultivated land among the land sources for urban expansion decreased to a small extent in the 1990s, but cultivated land continues to be the major land source for urban expansion. effective future urbanization needs controlling the expansion scale of large cities and reasonably developing medium and small cities, as well as balancing regional development. |
| WOS关键词 | RIVER DELTA ; GLOBAL CHANGE ; GROWTH ; URBANIZATION ; INFORMATION ; PATTERNS ; DECADES ; CITIES ; AREAS ; RAIN |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000384567300003 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2375036 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wen, QingKe |
| 作者单位 | 1.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, ZengXiang,Wen, QingKe,Liu, Fang,et al. Urban expansion in china and its effect on cultivated land before and after initiating "reform and open policy"[J]. Science china-earth sciences,2016,59(10):1930-1945. |
| APA | Zhang, ZengXiang.,Wen, QingKe.,Liu, Fang.,Zhao, XiaoLi.,Liu, Bin.,...&Ju, HongRun.(2016).Urban expansion in china and its effect on cultivated land before and after initiating "reform and open policy".Science china-earth sciences,59(10),1930-1945. |
| MLA | Zhang, ZengXiang,et al."Urban expansion in china and its effect on cultivated land before and after initiating "reform and open policy"".Science china-earth sciences 59.10(2016):1930-1945. |
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来源：中国科学院大学
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