干旱区生态环境知识资源中心(Arid): 东北地区植被分布全球气候变化区域响应

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	东北地区植被分布全球气候变化区域响应
其他题名	Response of Vegetation Distribution to Global Climate Change in Northeast China
	吴正方; 靳英华; 刘吉平; 商丽娜; 赵东升
来源期刊	地理科学
ISSN	1000-0690
出版年	2003
卷号	23 期号:5 页码:564-570
中文摘要	根据东北地区生态气候环境和生物地理规律对Holdridge生命地带分类系统进行修正，将东北地区植被分为寒温带湿润森林、寒温带潮湿森林、温带湿润森林、暖温带湿润森林、温带半湿润森林草甸草原、温带半湿润草甸草原、温带半干旱典型草原、暖温带半湿润草甸草原和半干旱典型草原等9个生命地带并分析了其空间分布特征。动用大气环流模型分析东北地区由于温室气体增加导致的气候变化趋势。以此为基础评价东北地区植被分布响应。全球气候变暖情景下，东北地区暖温带和温带范围明显扩大，而寒温带范围缩小甚至退出东北地区，植被分布界限显著北移；同时湿润区面积减少半湿润区和半干旱区扩大，导致森林面积缩小草原面积扩大。
英文摘要	In recent years, IPCC emphasizes the assessment of regional responses to global climate change, and tries to understand the climate change impacts on regional/global scales and to make mitigation adaptation. Northeast China in temperate monsoon climate is the vulnerable and sensitive area of climate change. The impact of global climate change on the vegetation in Northeast China is an important researching field. By using GCMs scenarios, the regional assessment of vegetation distribution response to climate change has been done. According to the characteristics of eco-climate and bio-geography in Northeast China, some index limits of Holdridge life zone classification system are modified. Based on bio-temperature (BT) and potential evapotrans-piration ratio (PER, determined by Thornthwaite model), Northeast China climate are classified as 3 thermal zones, i. e. cold temperate zone (BT < 6℃), temperate zone (6℃≤ =SBT < 9. 8℃)) and warm temperate zone( BT ≤ 9.8t). And 4 humid types i. e. moist type (PER≤ 0.75), humid type (PERsSl), semi-humid type (1 < PER ≤ 1.25) and semi-arid type (PER > 1.25). And then taking annual precipitation (P, mm) into account we divide Northeast China vegetation into 9 life zones, i. e. Cold temperate moist forests, Cold temperate humid for-ests , Temperate humid forests, Warm temperate humid forests, Temperate semi-humid forests/meadow, Temper-ate semi-humid meadow prairie, Temperate semi-arid prairie, Warm temperate semi-humid meadow prairie and Warm temperate semi-arid prairie. General Circulation Models (GGMs) simulates climate warming scenarios induced by the anthropogenic Green-House Gases(GHGs) concentration increasing in atmosphere. For Northeast China, the analysis indicate that under CO_2 concentration doubling annual mean temperature increase by 3℃-4℃. and precipitation by 9% - 12% , but the potential evapotranspiration increase much more than precipitation increment because of temperature increasing. Thus regional scenario of climate change in Northeast China would be with a high possibility of warming and aridity. Response to the climate change, the eco-climatic environment and distribution of vegetation life zone may change greatly in Northeast China. The assessment of regional impacts on vegetation shows: 1) Under climate warming scenarios, the warm-temperate and temperate zones enlarge, but cool-temperate zone becomes small and even disappears in the northeast, which would result in the boundaries of vegetation life zones transferring north-ward obviously and 2 cold temperate life zones would move to a higher altitude or move out from this region; 2) At the same time, the humid area shrink, and semi-humid area and semi-arid area expend, which would make forest range shrink and grassland expand in Northeast China.
中文关键词	东北地区 ; 植被生命地带 ; 大气环流模式 ; 气候变化情景 ; 全球气候变化区域响应
英文关键词	Northeast China vegetation life zone general circulation models climate change scenarios regional response
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:1165095
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203887
作者单位	东北师范大学城市与环境科学学院, 教育部植被生态重点实验室, 长春, 吉林 130024, 中国
推荐引用方式 GB/T 7714	吴正方,靳英华,刘吉平,等. 东北地区植被分布全球气候变化区域响应[J],2003,23(5):564-570.
APA	吴正方,靳英华,刘吉平,商丽娜,&赵东升.(2003).东北地区植被分布全球气候变化区域响应.地理科学,23(5),564-570.
MLA	吴正方,et al."东北地区植被分布全球气候变化区域响应".地理科学 23.5(2003):564-570.