Spatio-temporal variations of reference crop evapotranspiration and pan evaporation in the West Songnen Plain of China
文献类型:期刊论文
作者 | Liang,Liqiao(梁丽乔) ; Li, LJ ; Liu, Q |
刊名 | HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES
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出版日期 | 2011 |
卷号 | 56期号:7页码:1300-1313 |
关键词 | reference crop evapotranspiration pan evaporation pan coefficient FAO-56 equation spatial distribution temporal variation semi-humid semi-arid |
通讯作者 | Li, LJ |
英文摘要 | The spatio-temporal variations of reference crop evapotranspiration (ET(ref)) reflect the combined effects of meteorological variables, primarily wind speed, relative humidity, net radiation and air temperature. This study investigated the spatial distribution and temporal trends of ET(ref) (calculated by the FAO-56 Penman-Monteith equation), pan evaporation (E(pan)) and pan coefficient (K(p)) in a 140 x 10(3) km(2) semi-humid to semi-arid area in China. The results show that: (i) although the spatial distributions of ET(ref) and E(pan) are roughly similar and their spatial correlation is high over the growing season, K(p) varied considerably in space due to high humidity in the east of the region and low humidity in the southwest; (ii) the monthly variations of ET(ref) and E(pan) are similar to that of net radiation and opposite to that of relative humidity, while the monthly variation of K(p) is similar to that of relative humidity and opposite to that of wind speed, and the long-term trend is slightly increasing for ET(ref) and E(pan), while significantly (10% significance level) increasing for K(p); and (iii) generally, the time series of ET(ref) and E(pan) from 1951 to 2001 could be divided into three phases due to variations of meteorological variables. |
收录类别 | SCI |
资助信息 | CAS KZCX2-YW-Q06-1;Chinese Postdoctoral Science Fund 20090450562 |
语种 | 英语 |
公开日期 | 2012-06-08 |
源URL | [http://ir.igsnrr.ac.cn/handle/311030/22182] ![]() |
专题 | 地理科学与资源研究所_研究生部 |
推荐引用方式 GB/T 7714 | Liang,Liqiao,Li, LJ,Liu, Q. Spatio-temporal variations of reference crop evapotranspiration and pan evaporation in the West Songnen Plain of China[J]. HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES,2011,56(7):1300-1313. |
APA | Liang,Liqiao,Li, LJ,&Liu, Q.(2011).Spatio-temporal variations of reference crop evapotranspiration and pan evaporation in the West Songnen Plain of China.HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES,56(7),1300-1313. |
MLA | Liang,Liqiao,et al."Spatio-temporal variations of reference crop evapotranspiration and pan evaporation in the West Songnen Plain of China".HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES 56.7(2011):1300-1313. |
入库方式: OAI收割
来源:地理科学与资源研究所
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