• 目次 •

不同植被条件下实际蒸散的变化特征及其影响因子——以淮河流域为例

1. 1江苏省农业气象重点实验室, 南京 210044;
2南京信息工程大学应用气象学院, 南京 210044
• 收稿日期:2015-11-20 发布日期:2016-06-18
• 通讯作者: wurj@nuist.edu.cn
• 作者简介:吴荣军,男,1975年生,博士,副教授.主要从事农业气象灾害和污染生态研究. E-mail: wurj@nuist.edu.cn
• 基金资助:
本文由国家自然科学基金项目(41575110)、中国气象局/河南省农业气象保障与应用技术重点开放实验室开放研究基金项目(AMF201305)和国家自然科学基金委员会-广东联合基金(二期)超级计算科学应用研究专项(nsfc2015_233)资助

Variation characteristics and influencing factors of actual evapotranspiration under various vegetation types: A case study in the Huaihe River Basin, China.

WU Rong-jun1,2*, XING Xiao-yong2

1. 1Jiangsu Key Laboratory of Agricultural Meteorology, Nanjing 210044, China;
2School of Applied Meteorology, Nanjing University of Information Science &
Technology, Nanjing 210044, China
• Received:2015-11-20 Published:2016-06-18

Abstract: The actual evapotranspiration was modelled utilizing the boreal ecosystem productivity simulator (BEPS) in Huaihe River Basin from 2001 to 2012. In the meantime, the quantitative analyses of the spatial-temporal variations of actual evapotranspiration characteristics and its influencing factors under different vegetation types were conducted. The results showed that annual evapotranspiration gradually decreased from southeast to northwest, tended to increase annually, and the monthly change for the average annual evapotranspiration was double-peak curve. The differences of evapotranspiration among vegetation types showed that the farmland was the largest contributor for the evapotranspiration of Huaihe Basin. The annual actual evapotranspiration of the mixed forest per unit area was the largest, and that of the bare ground per unit area was the smallest. The changed average annual evapotranspiration per unit area for various vegetation types indicated an increased tendency other than the bare ground, with a most significant increase trend for the evergreen broadleaf forest. The thermodynamic factors (such as average temperature) were the dominant factors affecting the actual evapotranspiration in the Huaihe Basin, followed by radiation and moisture factors.