摘要
分析了灌溉用水定额的内涵以及确定方法,并利用云南省30个典型县的水稻灌溉用水定额数据,分别用克里金(Kriging)法和距离反比法插值并绘制云南省水稻灌溉用水定额等值线图,对两种插值结果进行比较表明:克里金法插值优于距离反比法。
The meaning and calculation method of irrigation water quota were analyzed in this paper. On the basis of data of irrigation water quota of rice in 30 representative counties of Yunnan province, the authors used Kriging method and inverse distance weighted method to plot the isoline map of irrigation water quota of rice in Yunnan province. Comparison between the two methods showed that Kriging method gave better results than inverse distance weighted method.
出处
《节水灌溉》
北大核心
2006年第1期28-30,共3页
Water Saving Irrigation
基金
云南省十五科技重点攻关课题(2002NG14)
关键词
灌溉用水定额
克里金法
距离反比法
等值线
irrigation water quota
Kriging method
inverse distance weighted method
isoline
