Energy Balance and Its Distribution in a Maize Field

摘要：

The diurnal change of net solar radiation,latent heat flux,sensible heat flux and soil heat flux by the Bowen-ratio system under different cropping season and different weather condition were observed.The results show that the diurnal change curve of the solar net radiation,latent heat flux and soil heat flux are all the typical single-peak curve,and the change mainly occurred between 6:00 and 20:00 and in the rest time the value is nearly negative.Under different weather conditions,the variations were different,which reached the maximum on sunny day and the minimum on overcast day.Sensible heat flux changed rulelessly because of the complicated factor.The diurnal change process is common between latent heat flux and net radiation.Weather condition has a bigger influence on evaporation than on transpiration.

关键词： Bowen-ration energy balance latent heat flux sensible heat flux soil heat flux

作者: Kang Yanxia Cai Huanjie Wang Jian Shao Guangcheng Ding Duanfeng

作者单位: College of Water Conservancy and Architectural Engineering of Northwest Sci-tech University of Agri College of Water Conservancy and Architectural Engineering of Northwest Sci-tech University of Agric Department of Irrigation of Hohai University,Nanjing,210098,China

会议类型: 国际会议

会议名称: International Conference on Effective Utilization of Agricultural Soil & Water Resources and Protection of Environment and the 4th Annual Academic Conference of Chinese Society of Agricultural Soil and Water Engineering

会议地点: 南京

会议语种:英文

页码: 371-375

在线出版日期: 2006-08-16（万方平台首次上网日期，不代表论文的发表时间）