globalchange  > 气候变化与战略
CSCD记录号: CSCD:5890212
论文题名:
若尔盖生态区及周边地区气候资源时空特征分析
其他题名: Temporal and Spatial Characteristics of Climate Resources in Zoige and Its Surrounding Areas
作者: 刘佳1; 马振峰1; 陈超1; 秦宁生1; 李小兰1; 赖江1; 郭斌2
刊名: 西南大学学报. 自然科学版
ISSN: 1673-9868
出版年: 2016
卷: 38, 期:12, 页码:26-34
语种: 中文
中文关键词: 若尔盖生态区 ; 气温 ; 降水 ; 径流量 ; 小波分析 ; 气候变化
英文关键词: Zoige biome ; temperature ; precipitation ; runoff ; wavelet analysis ; climate change
WOS学科分类: METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向: Meteorology & Atmospheric Sciences
中文摘要: 利用若尔盖生态区及周边20个气象台站1961年-2012年气温、降水、风速、日照、蒸发8个气象要素逐日资料,分析该区域气候资源变化的空间、时间特征.结果表明:若尔盖生态区及周边台站,年、季平均、最高、最低气温均呈升温趋势,90年代后期升温显著,秋季和冬季温度变化对年变化起主要作用,升温显著区域为若尔盖-金川一线,与全球气温增暖,青藏高原东部升温显著的变化趋势一致;同期降水量呈弱增加趋势,干湿季分明,空间上呈东北减西南增的变化趋势;而1980年-2012年年蒸发量显著增加,且变化趋势为北增南减,同期年、四季平均径流均呈下降趋势,其中秋季平均径流量的减幅最明显;该区域近50年日照时数呈现先增加后减少的趋势,平均风速整体呈显著减少趋势,减幅较大的区域位于生态区的西部和南部.此外该区域各气象要素均存在准4 a周期和准8 a周期,但周期成分在时域上分布不均匀.在气温升高、降水略有增加、蒸发量显著增加的气候组合下,若尔盖径流呈减小的变化趋势.
英文摘要: By using the meteorological observation data(temperature,precipitation,wind speed,sunshine, evaporation,e.g.),the paper analyzes the space and time characteristics of regional climate resources change from 1961-2012 in Zoige and surrounding.The results indicate that the annual and seasonal mean, maximum and minimum temperature showed a warming trend,especially in the late 1990 s.The autumn and winter temperature variation play main role in the annual change.Significant warming area in Jinchuan- Zoige line,it consistent with the changing trend of the global and the eastern Qinghai Tibet Plateau warming.At the same time,precipitation increased slightly.The spatial variation showed a decreasing trend in northeast but increasing in southwest.The evaporation is significant increasing trend in1980- 2012,and the spatial variation showed a decreasing trend in north but increasing in south.Average annual and seasonal runoff of the same period showed a downward trend,and inter-annual fluctuations.The average runoff reduction is most obvious in autumn.In the area of nearly 50 years,the number of sunshine hours showed a trend of increasing first and then decreasing.The spatial distribution is a trend of decrease in south but increase in north China.Over the same period the annual and seasonal mean wind speed overall showed a significant decreasing trend,especially in the west and south.In addition,the regional air temperature,precipitation,evaporation,runoff,sunshine and wind speed series are quasi 4 aand quasi 8 a cycle,but the periodic components of the meteorological elements in the time domain is not uniform.Under the combination of temperature,precipitation and evaporation all increase,the runoff decreased year by year in Zoige,The relationship between climate resources and human activities needs to be further studied.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/151625
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作者单位: 1.中国气象局成都高原气象研究所, 高原与盆地暴雨旱涝灾害四川省重点实验室, 成都, 四川 610072, 中国
2.阿坝州气象局, 阿坝, 四川 624000, 中国

Recommended Citation:
刘佳,马振峰,陈超,等. 若尔盖生态区及周边地区气候资源时空特征分析[J]. 西南大学学报. 自然科学版,2016-01-01,38(12):26-34
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