干旱区生态环境知识资源中心(Arid): 三大自然区过渡地带近50年来气候类型变化及其对气候变化的响应

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	三大自然区过渡地带近50年来气候类型变化及其对气候变化的响应
其他题名	Changes of Climate Zones in the Transition Area of Three Natural Zones during the Past 50 Years and Their Responses to Climate Change
	李育; 朱耿睿
来源期刊	地球科学进展
ISSN	1001-8166
出版年	2015
卷号	30 期号:7 页码:791-801
中文摘要	三大自然区(东部季风区、西北干旱区、青藏高原区)过渡地带,由于其特殊的地理位置,受到亚洲季风、中纬度西风环流共同影响,对气候变化的响应较为敏感。使用国际通用的柯本气候分类法和国内常用的积温与干燥度分类法,研究了97.5°~108°E,33°~41.5°N的三大自然区过渡地带19612010年的气候带类型及其变化过程。并通过将各气候类型的面积变化与主要季风指数、西风指数和南方涛动等主要指数进行了对比,并计算了他们的关系,与此同时结合东亚各气候区气温及降水的变化模式探讨三大自然区过渡地带气候变化对各气候系统的响应。基于此项研究:夏季西风和东亚冬季风的增强会使该区域变湿,东亚夏季风、南亚夏季风增强则会使该区域海拔较低的区域变干,海拔较高的区域变湿。高原夏季风的增强则会使整个区域变干。北大西洋涛动增强,会使该区域变湿;厄尔尼诺增强(减弱),则会使该区域变干(变湿)。总体来讲,该区域的水分状况主要受控于中纬度西风带环流,虽然亚洲夏季风的增强有可能会增加该区域东南部的降水,但是根据计算出的干燥度和气候带类型变化,增温效应可能会抵消降水增加,从而使该区域变干。根据本项研究,三大自然区过渡地带受到多个气候系统的相互作用,气温及降水等单一指标,并不能完全代表该区域气候变化特征,气候带类型面积变化可以作为一个重要的指标运用于该区域气候变化评价。
英文摘要	The transition area of three natural zones (Eastern Monsoon Region,Arid Region of Northwest China, Qinghai Tibet Plateau Region) is influenced by the Asian monsoon and middle latitude westerly circulation because of its special geographical position. And it is more sensitive to global climate change. The Koppen climate classification,which is widely used in the world,and the accumulated temperature-dryness classification,which is usually used in China,were used to study the climate zones and changes in the region of longitude 97.5° ~ 108°E, latitude 33° ~ 41.5°N,from 1961 to 2010. The changing areas of each climate zone were compared to the East Asian Summer Monsoon index,the South Asian Summer Monsoon index,the Summer Westerly index,the East Asian Winter Monsoon index,the Plateau Summer Monsoon index,the North Atlantic Oscillation index,the Southern Oscillation index,NINO3.4 index,to explore the response of the transition area of three natural zones to each climate system. According to the results,this region will become wetter when the Summer Westerly or the East Asian Winter Monsoon is relatively strong. When the East Asian Summer Monsoon or the South Asian Summer Monsoon becomes strong,the climate in low altitude region of the study area will easily become drier,and the climate in high altitude region of the study area is easily to become wetter. When the Plateau Summer Monsoon is relatively strong, the climate in the study area will easily become drier. When the North Atlantic Oscillation is relatively strong,the study area will easily become wetter. And when the El Nino is relatively strong,or the Southern Oscillation is relatively weak,the study area will easily become drier. In general,the moisture status of this region is mainly controlled by the middle latitude westerly circulation. The enhancement of the Asian summer monsoon could increase the precipitation in the southeast part of this regional,but,according to the degrees of dryness and the types of climate change in this paper,warming effects could offset precipitation increasing and make the area drier. The transition area of three natural zones is influenced by multiple interactions of climate systems from East Asia. A single climatic index,such as air temperature or precipitation,can not completely represent the regional features of climate change. As a result,areas of climate zones can be used as an important index in the regional climate change assessment.
中文关键词	三大自然区过渡地带 ; 气候变化 ; 柯本气候分类 ; 积温干燥度 ; 响应
英文关键词	Transition area of three natural areas Climate change Koppen climate classification Accumulated temperature-dryness Responses
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:5493300
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/2XILL650/232510
作者单位	兰州大学资源环境学院,兰州大学干旱区水循环与水资源研究中心, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	李育,朱耿睿. 三大自然区过渡地带近50年来气候类型变化及其对气候变化的响应[J]. 兰州大学,2015,30(7):791-801.
APA	李育,&朱耿睿.(2015).三大自然区过渡地带近50年来气候类型变化及其对气候变化的响应.地球科学进展,30(7),791-801.
MLA	李育,et al."三大自然区过渡地带近50年来气候类型变化及其对气候变化的响应".地球科学进展 30.7(2015):791-801.