摘要
针对丽水市农业灌区特点,利用样点灌区数据成果,采用多元线性回归法和Tobit模型法分析农业用水主要影响因素,依据影响因素特征提出农业用水统计改进定额法,总体表现较好,平均统计偏差在-8.0%左右,可为丽水市农业用水统计工作提供支撑。
Considering the characteristics of agricultural irrigation areas in Lishui City,this study used multiple linear regression and Tobit model to analyze major influencing factors of agricultural water consumption with data of sample irrigation areas.An improved quota statistical method was proposed based on features of the influencing factors.The method shows a sound performance with the average statistical deviation of-8.0%approximately,which can provide support for the statistical work of agricultural water use in Lishui City.
作者
沈春玲
戚核帅
温进化
SHEN Chunling;QI Heshuai;WEN Jinhua(Lishui Bureau of Water Resources,Lishui 323000,Zhejiang,China;Zhejiang Institute of Hydraulics&Estuary(Zhejiang Institute of Marine Planning and Design),Hangzhou 310020,Zhejiang,China)
出处
《浙江水利科技》
2021年第3期17-21,共5页
Zhejiang Hydrotechnics
基金
浙江省水利科技计划项目(RC1812)。
关键词
农业用水统计
改进定额
多元线性回归
TOBIT模型
agricultural water consumption statistics
influencing factors
multiple linear regression
Tobit model
