Comparison of Calculating Methods of Forage Crop Water Requirements and Correlation Analysis in the Grassland of Xilinguole

摘要：

Crop water requirements are most part of water consumption in agricultural aspect.Currently,there are lots of methods of calculating crop water requirements.According to the observation data and weather data in typical grassland in Xilinguole of Inner Mongolia from 2004 to 2005,crop water requirements were calculated by water balance and evaporation pan method directly.Also,crop water requirements were calculated by crop coefficient K,and Penman-Monteith equation,Modified Penman,Blaney-Criddle,Hargreaves,Priestley-Taylor and the Markkink indirectly.Applying several methods to calculate crop water requirements,the results of every ten days were evaluated by correlation analysis.The data measured in 2006 proved regression equations and the accuracy is higher.

关键词： crop water requirements forage crop water balance method evaporation pan method Penman-Monteith equation modified Penman equation

作者: Zheng Hexiang Shi Haibin Chai Jianhua Fu Weiping Chang Limao

作者单位: College of WaterConservancy and Civil Engineering,Inner Mongolia Agricultural University,Huhhot,0100 Hydraulic Conservancy Science Institute in Inner Mongolia Huhhot,010020,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: 165-173

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）