干旱区生态环境知识资源中心(Arid): 河西内陆河流域出山径流对气候转型的响应

Arid

	河西内陆河流域出山径流对气候转型的响应
其他题名	Responding of River Streamflow to the Climate Shift in the Hexi Inland Region
	蓝永超; 丁永建; 沈永平; 康尔泗; 张济世
来源期刊	冰川冻土
ISSN	1000-0240
出版年	2003
卷号	25 期号:2 页码:188-192
中文摘要	对甘肃河西内陆河流域出山径流变化过程与趋势的研究表明．从20世纪80年代中后期开始．受西风环流降水的影响．祁连山区中、西部的黑河、疏勒河流域的气候环境发出了由增温变于转为变湿的讯号，具体表现为随着山区气温升高．降水量增加，出山径流相应增大．采用区域气候模式预测和水文统计模式的计算，亦同样证实出山径流有显著的增加趋势．但受季风影响的祁连山东部的石羊河流域则尚未出现这种转变，从20世纪50年代起．出山径流量持续下降．表明其气候环境仍向增温变干的方向发展．
英文摘要	In Northwest China,climate warming and drying dominated the past 100a.In the middle Tianshan Mountains and the eastern Qilian Mountains,temperatures rose 1.3℃ and 1.0℃ and precipitation decreased 50-65 mm and 70-85 mum,respectively,until the 1980s.The result of tree-ring study shows that the negative precipita-tion departure in the north Uygur Autonomous Re-gion of Xinjiang reaches-11.8% during the peri-od from 1920 to 1978.In the last 50a,the meas-ured hydrological and meteorological data indicate that air temperature in West China rises with a mean rate of 0.2℃ per ten years.In northern Xin-jiang,air temperature rising even reaches 1.4℃in the last 50a.which exceeds. greatly the mean rise range of 0.4-0.8℃ of global air temperature ris-ing in near upon 100a.The while,precipitation in the west part of Northwest China and North China decreased and many rivers in northwest arid areas of China all appeared a fluctuant downtrend during the period from 1951 to 1989.Water level of the Qinghai Lake has descended from 3250 ma.s.l.in 1908 to 3193.78 m a.s.l. in 1986,definitely showing a warm-dry trend of climate change in the west of China.But the observed data of some me-teorological and hydrological stations have showed that climate of Xinjiang,located in the west of Northwest China,send out a signal of climate shift from warm-dry to warm-humid.Hexi inland arid region is adjacent to Xinjiang.Especially,the Shulehe River basin,located in the west of the re-gion,similar to Xinjiang,located in the middle lat-itude westerly belt,where precipitation is under
中文关键词	内陆河流域 ; 甘肃 ; 径流变化 ; 降水 ; 气候环境 ; 气温 ; 出山径流量 ; 水文循环
英文关键词	hydrological cycle warm-dry warm-humid climatic shift
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:1348920
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203816
作者单位	中国科学院寒区旱区环境与工程研究所, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	蓝永超,丁永建,沈永平,等. 河西内陆河流域出山径流对气候转型的响应[J]. 中国科学院西北生态环境资源研究院,2003,25(2):188-192.
APA	蓝永超,丁永建,沈永平,康尔泗,&张济世.(2003).河西内陆河流域出山径流对气候转型的响应.冰川冻土,25(2),188-192.
MLA	蓝永超,et al."河西内陆河流域出山径流对气候转型的响应".冰川冻土 25.2(2003):188-192.