干旱区生态环境知识资源中心(Arid): 近40年来酒泉肃州绿洲时空变化及景观稳定性

Arid

	近40年来酒泉肃州绿洲时空变化及景观稳定性
其他题名	Spatio-temporal changes and landscape stability of Suzhou Oasis, Jiuquan in the recent 40 years
	巩杰; 张玲玲; 孙朋
来源期刊	兰州大学学报. 自然科学版
ISSN	0455-2059
出版年	2014
卷号	50 期号:3 页码:398-404
中文摘要	选取1973,1977年的MSS,1980年的卫星航片以及1986-2013年9个典型期的Landsat TM/ETM~+遥感影像作为数据源,结合实地调查等进行解译分类和验证,利用ArcGIS 9.3, Fragstats 3.3和相关统计方法,对肃州绿洲时空变化及绿洲稳定性进行分析研究.结果表明:近40年来,肃州绿洲空间变化表现为扩张和萎缩并存,整体上以扩张为主;绿洲面积总体上呈增加趋势,从1973年的945.49 km~2增加到2013年的1190.09 km~2,增长幅度达20.55%.绿洲变化表现出空间和时间尺度上的不均衡性,扩张和萎缩变化区域分布较零散,扩张多发生在绿洲-荒漠交错带和绿洲内部,表现为绿洲内部填充和边缘扩张,变化剧烈区域主要集中在三墩镇东北角和北部边缘区(即鸳鸯池水库周边)、总寨镇东部、上坝镇和下河清乡.近40年来肃州绿洲的景观稳定性呈现增强趋势.研究对干旱区绿洲水土资源高效利用和景观管理具有一定的参考价值.
英文摘要	The study of oasis changes is a vital research topic of environmental change and sustainable development in the arid area. Based on a series of remote sensing data from 1973 to 2013 and combined with on-site investigations, GIS techniques and statistical methods were used to study the spatio-temporal change and the stability of Suzhou Oasis from 1973 to 2013. The results showed that: 1) In the latest 40 years, the area of Suzhou Oasis increased generally, and varied between expansion and shrinkage in the spatial scale, while the expansion has been the main one. The area increased from 945.49 km~2 to 1 190.09 km~2 from 1973 to 2013 with an increase degree of 20.55%. 2) The variations of Suzhou Oasis showed an imbalance on the spatial and temporal scales. Moreover, the areas of expansion and shrinkage distributed more fragmented and the expansion occurred in the edge zone of the oasis with the form of internal padding and edge expansion. In addition, the rapidly changing areas were mainly concentrated in the northeastern part and the northern edge of Sandun Township (the area around the Yuanyangchi Reservoir), the eastern part of Zongzhai Township, Shangba Township and Xiaheqing Township. 3) The stability of Suhou Oasis gradually increased from 1973 to 2013. The research results should be a useful reference for the efficient exploitation of the limited soil and water resource and oasis landscape management in arid areas of China.
中文关键词	绿洲 ; 时空变化 ; 景观稳定性 ; 肃州
英文关键词	oasis spatio-temporal change landscape stability Suzhou
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:5188529
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231419
作者单位	兰州大学, 西部环境与气候变化研究院, 西部环境教育部重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	巩杰,张玲玲,孙朋. 近40年来酒泉肃州绿洲时空变化及景观稳定性[J]. 兰州大学,2014,50(3):398-404.
APA	巩杰,张玲玲,&孙朋.(2014).近40年来酒泉肃州绿洲时空变化及景观稳定性.兰州大学学报. 自然科学版,50(3),398-404.
MLA	巩杰,et al."近40年来酒泉肃州绿洲时空变化及景观稳定性".兰州大学学报. 自然科学版 50.3(2014):398-404.