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题名: Spatio-temporal changes in oases in the Heihe River Basin of China: 1963-2013
作者: Xie, YW; Zhao, H; Wang, GS
收录类别: SCIE ; BIOSIS
出版日期: 2015
刊名: ECOSCIENCE
卷号: 22, 期号:1, 页码:33-46
出版者: TAYLOR & FRANCIS
出版地: PHILADELPHIA
英文摘要: Artificial oases have flourished as human activities have intensified. Changes in oases in the Heihe River Basin are typical for the arid areas of China. Based on images from 14 separate periods during 1963-2013 that were compiled from multi-sensors, data on the boundaries of oases were extracted using the methods of object-oriented image segmentation and Normalized Difference Vegetation Index thresholds as well as visual interpretation. Based on extracted data, the spatio-temporal changes in oases were analyzed using models i.e. grid transformed model for rate of change. The drivers were analyzed based on data from Statistics Yearbooks and field surveys. The results show that from 1963 to 2013 sprawl dominated oasis evolution and occurred not only in the surroundings but also in interior patches. Oasis evolution patterns of "unchanged," "expanding," "shrinking" and "oscillating" were observed. The development exhibited three stages, the unstable (1963-1980), the steady development (1980-2002) and the rapid expansion (2002-2013), which correspond to the Planned Economy Period, the Commodity Economy Period and the Market-oriented Economy Period, respectively, in China. Oasis expansion was mainly determined by the human instincts for survival and for human well-being and was governed by population growth, agricultural policies and economic development.
关键词: Oasis ; spatio-temporal changes ; Heihe River Basin ; human development ; landscape change ; arid ecosystems
作者部门: [Xie, Yaowen ; Zhao, Hong ; Wang, Guisheng] Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Gansu, Peoples R China
通讯作者: Xie, YW (reprint author), Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Gansu, Peoples R China.
学科分类: Environmental Sciences & Ecology
文章类型: Article
所属项目编号: National Natural Science Foundation of China [41471163, 91025010] ; 973 Program of China [2009CB421306]
所属项目名称: 国家自然科学基金项目 ; 国家重点基础研究发展计划以及国家重大科学研究计划(973计划)
项目资助者: NSFC ; MOST
语种: 英语
DOI: 10.1080/11956860.2015.1047140
ISSN号: 1195-6860
WOS记录号: WOS:000369737300005
BIOSIS记录号: BCI:BCI201600224219
IR记录号: WOS:000369737300005
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/182091
Appears in Collections:资源环境学院_期刊论文

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Recommended Citation:
Xie, YW,Zhao, H,Wang, GS. Spatio-temporal changes in oases in the Heihe River Basin of China: 1963-2013[J]. ECOSCIENCE,2015,22(1):33-46.
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