涡动相关技术对温带森林蒸散的估算研究  

Study on Estimation of Evapotranspiration from Temperate Forests by Vortex-related Techniques

作　　者：芦文豪 朱骏 卢冰冰 Lu Wenhao;Zhu Jun;Lu Bingbing(Meteorological Bureau of Putian City,Putian 351100;Meteorological Bureau of Liuhe District,Nanjing,211500)

机构地区：[1]福建省莆田市气象局,福建莆田351100 [2]南京市六合区气象局,江苏南京211500

出　　处：《中阿科技论坛（中英文）》2020年第8期116-118,共3页China-Arab States Science and Technology Forum

摘　　要：蒸散是地表水分循环中重要而复杂的过程。文章将探讨涡动相关技术在运用于长白山阔叶林中的蒸散的估算研究。利用开路涡动相关系统测定长白山阔叶红松林蒸散量(潜热通量LE)、净辐射(Rn)、显热通量(H)、平均绝对温度(TA),统计出生长季初期和生长季旺盛期的蒸散特征。研究得出,潜热通量与净辐射(Rn)呈二次曲线关系,与气温(TA)呈指数关系,模拟出的LE日总量与Rn、TA以及饱和水汽压经验关系式,并对缺值进行插补。Evapotranspiration is an important and complex process of surface water circulation.In this paper,the study of vortex correlation technology in broad-leaved forest of Changbai Mountain is discussed.The evapotranspiration(latent heat flux LE),net radiation(Rn),sensible heat flux(H),average absolute temperature(TA),system of Changbai Mountain broad-leaved Pinus koraiensis forest measured by open circuit vortex correlation system The evapotranspiration characteristics of the early and vigorous growth seasons were calculated.The results show that the latent heat flux is quadratic to the net radiation(R)and exponential to the temperature(TA).The empirical relationship between the total amount of LE day and the Rn、TA and saturated water vapor pressure is simulated,and the missing value is interpolated.

关 键 词：潜热通量 蒸散 涡相关动 

分 类 号：S161.4[农业科学—农业气象学]