干旱区生态环境知识资源中心(Arid): 青海共和盆地气温的时空动态及其效应分析

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	青海共和盆地气温的时空动态及其效应分析
其他题名	Temporal - Spatial Analysis of Temperature and Its Effect on Climate and Water in Qinghai Gonghe Basin
	孙建光 1; 李保国 1; 卢琦2
来源期刊	地理科学进展
ISSN	1007-6301
出版年	2004
卷号	23 期号:3 页码:100-106
中文摘要	在青藏高原东北缘的青海共和盆地,本文依据三个主要气象站(茶卡、恰卜恰和贵南)及18个临时气象站的长短期气象资料和共和县(恰卜恰站)的土壤水分资料,利用时间序列分析、数字高程模型和Penman-Monteith公式,对共和盆地的年均温时空变化及其对气候的影响进行了分析.结果表明:共和盆地的年均温序列是非平稳的,存在线性增长趋势;依据年均温的线性模型,茶卡、恰卜恰和贵南的气温平均每年分别升高0.0247、0.0422和0.0272℃;共和盆地的两大沙地(沙珠玉-塔拉滩和木格滩)处于气温高值区(1.0～4.0℃和1.0～2.9℃),而且气温的空间分布与年潜在蒸散的空间分布是显著的正相关;由于气温升高,盆地内水汽压饱和差和潜在蒸散增大,表层土壤水分减少,因此共和盆地的气候会逐渐趋于干燥;但研究期内气温升高的效应比较小,所以短期内(尤其是研究期内)共和盆地的荒漠化加剧问题有待进一步分析.
英文摘要	In the northeastern part of Qinghai-Tibetan plateau lies Gong-he basin. The paper discusses the temporal-spatial characteristic of temperature and its effect on climate and water according to the meteorological data (1953~2001) from three weather stations and soil water ma-terial (1980~2002) in Qiabuqia weather station by time series method, DEM and Penman-Mon-teith equation. The results show that annual temperature time series are not stationary, but with linear upward trend; and annual average temperature in Chaka and Qiabuqia and Guinan is in-creasing by 0.0247、0.0422 and 0.0272 ℃ respectively per year according to the linear model in Gong-he basin; furthermore, the spatial distribution of annual average temperature can be simu-lated by using multivariable linear model based on digital elevation model (DEM 100 * 100m~2) and by using the data at three permanent weather stations and more than ten temporary weather stations. The two big sand bands(Shazuyu-Tala and Mugetan) is in the higher scope of tempera-ture（1.0~4.0 ℃and 1.0~2.9 ℃) according to the simulated result, and there is a direct correlation between annual temperature and potential evapotranspiration in space; with temperature rising, the saturated difference of water pressure and potential evapotranspiration increases gradually, and soil water decreases in topsoil; so it makes the climate drier, and desertification become more serious gradually in the future in Gong-he basin in Qinghai province. But in short-term, especially in the period of research, the change of climate is very slight, so the cause of deserti-fication needs to be analyzed further in Gong-he basin.
中文关键词	青藏高原 ; 共和盆地 ; 温度 ; 气候变暖
英文关键词	DEM Qinghai-Tibetan Plateau Gong-he Basin temperature DEM climate warming
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:1706518
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/204867
作者单位	1.中国农业大学资源和环境学院, 北京 100094, 中国; 2.中国林科院, 北京 100091, 中国
推荐引用方式 GB/T 7714	孙建光,李保国,卢琦. 青海共和盆地气温的时空动态及其效应分析[J]. 中国农业大学,2004,23(3):100-106.
APA	孙建光,李保国,&卢琦.(2004).青海共和盆地气温的时空动态及其效应分析.地理科学进展,23(3),100-106.
MLA	孙建光,et al."青海共和盆地气温的时空动态及其效应分析".地理科学进展 23.3(2004):100-106.