摘要
利用额济纳地区查干毛道饲草料基地(主要种植苜蓿)内2001年6~9月的辐射观测资料,对该荒漠绿洲的光合有效辐射(PAR)的月变化、日变化、极值及其所占太阳短波辐射比例ηQ的一些基本特征作了分析和讨论,并与张掖、临泽、太湖地区及美国Texas站作了比较,发现该地区PAR的夏季总量、月平均日总量及各项极值都大于前述其它站点,辐射资源十分丰富;晴天日和阴天日PAR的变化有明显的区别;对于ηQ,云和水汽、太阳辐射强度、光周期对它都有影响。
Abstract
Using the observational radiation data in the Chaganmaodao Fodder Basis(mainly planted the clover) in Ejina from June to September 2001,we analyzed the monthly variations,diurnal variations,extreme values of the PAR and the proportions(ηQ) of PAR in short wave irradiance.Moreover,we compared the results with the corresponding variables in Zhangye,Linze,Taihu regions and at Texas station,US,and it is found that the gross of PAR in summer,monthly average daily gross and each extreme value are higher.The irradiative resource is abundant.There are distinctly differences between the PAR's variations on the clear and cloudy days.The cloud and water vapor,intensity of solar radiation,photoperiod have important influences on ηQ.
关键词
额济纳地区 /
苜蓿地 /
光合有效辐射 /
太阳短波辐射
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Key words
Ejina region /
Clover land /
Photosyntheseically /
Short wave irradianc
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姚济敏;高晓清;冯起;谷良雷;朱德琴.
额济纳地区苜蓿地光合有效辐射(PAR)的基本特征. 高原气象. 2005, 24(5): 772-776
姚济敏;高晓清;冯起;谷良雷;朱德琴.
Characteristics of Photosynthestically Active Radiation at Clover Land over Ejina Region. Plateau Meteorology. 2005, 24(5): 772-776
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参考文献
基金
中国科学院"引进杰出人才"课题(2003401)资助
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