植物生长季海北高寒湿地辐射收支特征

冰川冻土 ›› 2006, Vol. 28 ›› Issue (4): 549-555.

植物生长季海北高寒湿地辐射收支特征

李英年¹, 赵亮¹, 张法伟^1,2, 徐世晓¹, 赵新全¹

1. 中国科学院西北高原生物研究所, 青海, 西宁, 810001;
2. 中国科学院, 研究生院, 北京, 100049

收稿日期:2006-01-03 修回日期:2006-03-10 出版日期:2006-08-25 发布日期:2012-04-26
基金资助:
中国科学院知识创新工程重大项目(KZCX1-SW-01-01A);国家重点基础研究发展规划项目(2002CB412501);中日合作“以21世纪亚洲陆地生态系统碳管理为目标的综合碳收支研究"项目;中日合作”亚太地区环境创新战略计划项目(APEIS)"资助

Characteristics of Radiation Balance on the Alpine Wetland in Haibei Prefecture of the Qilian Mountains in Growing Season

LI Ying-nian¹, ZHAO Liang¹, ZHANG Fa-wei^1,2, XU Shi-xiao¹, ZHAO Xin-quan¹

1. Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining Qinghai 810008, China;
2. Graduate University of the Chinese Academy of Sciences, Beijing 100049, China

Received:2006-01-03 Revised:2006-03-10 Online:2006-08-25 Published:2012-04-26

摘要/Abstract

摘要： 依据祁连山海北高寒湿地植物生长期观测资料,分析了区域辐射收支情况及其变化特征.结果表明:祁连山海北高寒湿地有较强的太阳总辐射(DR),但地表反射辐射(UR)、地面有效辐射(ELR)较低;地表长波辐射(ULR)、大气逆辐射(DLR)、净辐射(R_n)均较高,且具有明显的日、季节变化.植物生长期5~9月的日变化振幅DR>Rn>UR>ULR>DLR>ELR,其总量表现出ULR>DLR>DR>R_n>UR>ELR,分别达4650.6、4225.5、3058.8、2156.2、477.6和425.1 MJ·m^-2.从月际分布来看,ULR、DLR、DR最高出现在7月,R_n出现在6月,UR出现在5月,ELR出现在8月,分别为980.3、913.1、721.5、554.9、112.1和127.4 MJ·m^-2.

关键词: 植物生长期, 祁连山海北地区, 高寒湿地, 辐射收支

Abstract: In this paper,radiation balance and changing characteristics on alpine wetland in Haibei Prefecture of the Qilian Mountains were analyzed according to long-term observation data in growing season.The results showed that there were higher total global solar radiation(DR),lower surface reflected radiation(UR) and lower surface effective radiation for the alpine wetland,as well as higher long-wave radiation(DLR),atmospheric inversion radiation(ULR) and net radiation(R_n).Their diurnal and seasonal variations were pronounced.As regards the diurnal variation during growing season(from May to September),the order was DR>R_n>UR>ULR>DLR>ELR,however,as regards the total quantity,the order was ULR>DLR> DR>R_n>UR>ELR,with the values of 4650.6,4225.5,3058.8,2156.2,477.62 and 425.1 MJ·m^-2,respectively.In light of monthly variations,the month maxima of ULR,DLR and DR were in July(950.1 MJ·m^-2);those of R_n,UR and ELR were in June,May and August.The values of ULR,DLR,DR,R_n,UR and ELR were 980.3,913.1,721.5,554.9,112.1 and 127.4 MJ·m^-2,respectively.

Key words: growing season, Haibei Prefecture in the Qilian Mountains, alpine wetland, radiation balance

中图分类号:

P422.4

李英年, 赵亮, 张法伟, 徐世晓, 赵新全. 植物生长季海北高寒湿地辐射收支特征[J]. 冰川冻土, 2006, 28(4): 549-555.

LI Ying-nian, ZHAO Liang, ZHANG Fa-wei, XU Shi-xiao, ZHAO Xin-quan. Characteristics of Radiation Balance on the Alpine Wetland in Haibei Prefecture of the Qilian Mountains in Growing Season[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2006, 28(4): 549-555.

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