干旱区生态环境知识资源中心(Arid): 19642015年阿牙克库木湖时序变化的气候响应

Arid

	19642015年阿牙克库木湖时序变化的气候响应
其他题名	Time Series Area of the Ayakkum Lake and Its Response to Climate Change
	李均力; 白洁; 王亚俊
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2018
卷号	35 期号:1 页码:85-95
中文摘要	获取长时间序列的高山内陆湖泊变化信息,对研究高山环境变化和气候变化的响应具有重要的意义。以阿尔金山库木库勒盆地的阿牙克库木湖为研究对象,利用Corona、Landsat、HJ1A/1B等形成的长时间序列遥感数据,分析50 a来湖泊的年度和季节性变化特征,并结合降水、气温等数据分析与气候变化的响应。结果表明:阿牙克库木湖在19642015年面积由580.15 km~2增加到1 000.70 km~2,增长率为8.24 km~2·a~(-1),并在2014年超越博斯腾湖成为新疆第一大湖。湖泊面积在19641995年呈小幅度的萎缩或扩张,面积变幅仅为-0.12 km~2·a~(-1),在1995年以后湖泊面积呈阶段性的扩张,面积突变点分别在2002年、2006年、2010年和2012年,近20 a湖泊面积增长率为20.9 km~2·a~(-1)。从1998年后的月度变化曲线来看,湖泊面积月度变化曲线逐年上升,且面积的阶跃变化在2002年、2006年和2010年表现显著。降水变化很好地印证了湖泊面积的阶段性变化,其中湖泊月度面积曲线与月度降水曲线的响应延迟时间由1个月转为2~ 3个月,湖泊面积在冬季的逐年扩张与冬季气温急升具有很好的线性关系。
英文摘要	In order to analyze the annual,monthly and spatial variations of arid lake extent change under climate change, the Ayakkum Lake in the Alkin Mountains in Xinjiang,China was selected as an example to map the changes of lake area and level based on the time series of Corona and Landsat images in recent 50 years. The results showed that the change of the Ayakkum Lake experienced 3 stages,i. e. the periods of 1964 - 2004, 2005 - 2010 and 2011 - 2014,and the annual change rates of their lake area were - 0.012 km~2·a~(-1),-0.256 km~2·a~(-1) and-4.798 km~2·a~(-1) respectively. Holistically, the lake area was shrunk gently at first and then significantly, lake water was firstly found to be extinct on September 25th, 2014,and its ecological function was weaker and weaker. The seasonal variation of the Chaiwopu Lake extent revealed that the lake water extent reached its peak in spring and was shrunk down to its valley in autumn, the seasonal change became more obvious,and its sharp shrinkage occurred after 2005. Monthly lake area curves showed that the Chaiwopu Lake was lost its water area rapidly year by year. The variation of the Ayakkum Lake was highly similar to that of the Chaiwopu Lake. Before 2005, the change of lake water area and water level was insignificant. After 2005, the lake water area was sharply shrunk. When these lakes was shrunk to their bottoms in 2012, the groundwater level in the study area was highly correlated with the variation of lake water area. In the wet years between 1999 and 2004, the lake shrinking rate was decreased,but a dynamic water balance of the Chaiwopu Lake was kept. Excessive groundwater pump after 1993 was the main reason of lake extinction,which resulted in the ecological disasters in this region.
中文关键词	湖泊面积 ; 时序分析 ; 时空变化 ; 气候变化 ; 响应 ; 阿牙克库木湖 ; 新疆
英文关键词	lake area time-series analysis spatiotemporal change climate change response Ayakkum Lake Xinjiang
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:6157140
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237638
作者单位	中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	李均力,白洁,王亚俊. 19642015年阿牙克库木湖时序变化的气候响应[J]. 中国科学院新疆生态与地理研究所,2018,35(1):85-95.
APA	李均力,白洁,&王亚俊.(2018).19642015年阿牙克库木湖时序变化的气候响应.干旱区研究,35(1),85-95.
MLA	李均力,et al."19642015年阿牙克库木湖时序变化的气候响应".干旱区研究 35.1(2018):85-95.