Received date: 2008-10-06
Revised date: 2008-12-05
Online published: 2009-03-25
Supported by
key Subjects of National Natural Science Foundation of China,No.50839005;Natural Science Foundation of Guangdong Ocean University,No. 0812073
Based on the climate and hydrological data of Dongjiang River Basin covering the period 1956-2003, the changes of actual evapotranspiration and pan evaporation and their relationship with climatic factors are analyzed to reveal the similarity and dissimilarity. The results show that there is a decreasing trend in both actual evapotranspiration and pan evaporation, with an insignificant decrease in the former while a significant decrease in the latter. Both of the minimum values of evaporation occur in the 1990s. There is an uncertain and weak negative correlation between actual evapotranspiration and pan evaporation. There is an uncertain relationship between air temperature and actual evapotranspiration and pan evaporation. Wind speed presents a positive correlation with pan evaporation, but an uncertain correlation with actual evapotranspiration. The change of rainfall results in the opposite changes with the two kinds of evapotranspiration, if one increases, the other one decreases. Sunlight radiation causes the opposite changes in trendline analysis and set pair analysis. Through climate patterns analysis, pan evaporation increases with radiation, and actual evapotranspiration increases first and then decreases. The pan evaporation is much more significant than the other climate patterns that the sunlight is more than normal, and the precipitation is less than normal. The actual evapotranspiration is much more than other climate patterns in climate patterns that the sunlight is at the medium level, and the precipitation is more than normal.
XIE Ping,CHEN Xiaohong,WANG Zhaoli,XIE Yiwen . Comparison of Actual Evapotranspiration and Pan Evaporation[J]. Acta Geographica Sinica, 2009 , 64(3) : 270 -277 . DOI: 10.11821/xb200903002
[1] IPCC. Climate Change 2001: The Scientific Basis, Contribution of Working Group I to the Third Assessment Report of the International Panel on Climate Change. In: Hongbton J T (ed.). New York: Cambridge University Press, 2001. 193-227.
[2] Peterson T C, Golnbev V S, Groisman P Y. Evaporation losing it strength. Nature, 1995, 377: 687-688.
[3] Brutsaert W, Parlange M B. Hydrological cycle explain the evaporation paradox. Nature, 1998, 396: 30-31.
[4] Roderick M L. The cause of decreased pan evaporation over the past 50 years. Science, 2002, 298: 1410-1411.
[5] Cohen S, Stanhill G E. Evaporative climate changes at Bet-Dagan Isreal 1964-1998. Agricultural and ForestMeteorology, 2002, 111(2): 83-91.
[6] Zuo Hongchao, Li Dongliang, Hu Yijiao. The trend change of climate and pan evaporation and its relationship in recent 40 years in China. Chinese Science Bulletin, 2005, 50(11): 1125-1130.
[左洪超, 李栋梁, 胡隐樵等. 近40 a 中国气候 变化趋势及其同蒸发皿观测的蒸发量变化的关系. 科学通报, 2005, 50(11): 1125-1130.]
[7] Guo Jun, Ren Guoyu. Recent change of pan evaporation and possible climate factors over the Huang-Huai-Hai watershed, China. Advances in Water Science, 2005, 16(5): 666-672.
[郭军, 任国玉. 黄淮海流域蒸发量的变化及其原 因分析. 水科学进展, 2005, 16(5): 666-672.]
[8] Wang Yanjun, Jiang Tong, Xu Chongyu et al. Trend of evapotranspiration in the Yangtze River Basin in 1961-2000. Advance in Climate Change Research, 2005, 1(3): 99-104.
[王艳君, 姜彤, 许崇育等. 长江流域1961-2000 年蒸发量 变化趋势研究. 气候变化研究进展, 2005, 1(3): 99-104.]
[9] Ohmura A, Wild M. Is the hydrological cycle accelerating? Science, 2002, 298: 1345-1346
[10] Xie Ping, Chen Xiaohong, Wang Zhaoli et al. Change of pan evaporation and impact climate factors over Dongjiang river basin. Tropical Geography, 2008, 28(4): 306-310.
[谢平, 陈晓宏, 王兆礼等. 东江流域蒸发皿蒸发量及其影响 因子的变化特征分析. 热带地理, 2008, 28(4): 306-310.]
[11] Gao Ge, Chen Deliang, Xu Chongyu et al. Trend of estimated actual evapotranspiration over China during 1960-2000. Journal of Geophysical Research, 2007, 112, D11120, doi: 10.1029/2006JD008010.
[12] Zhan C S, Xia J, Li Z L et al. Modelling the spatial distribution of actual terrestrial evapotranspiration using a hydrological and meteorological approach. In: Frank S et al. (eds.) Regional Hydrological Impacts of Climatic Change: Hydroclimatic Variability. IAHS Publ., 2005, 296: 283-290.
[13] Kemdall M G. Rank Correlation Method. Landon: Griffin, 1975. 23-25.
[14] Zhao Keqin, Xuan Aili. Set pair theory: A new theory method of non-define and its applications. System Engineering, 1996, 14(1): 18-23.
[赵克勤, 宣爱理. 集对论: 一种新的不确定性理论方法与应用. 系统工程, 1996, 14(1): 18-23.]
/
| 〈 |
|
〉 |