摘要
利用张掖市1981-1990年期间农作物生育期内降雨量的观测数据,建立了相应的模拟模型。具体的研究方法是采用五点三次平滑方法,对原始数据进行平滑处理,在此基础之上,再利用高斯函数模拟该地区农作物生育期内的降雨量。从对模拟结果的方差分析看,利用平滑方法对数据进行改造,由于消除了数据随机误差产生的影响,提高了数据的质量,从而使得模拟结果的精度有了进一步的提高,为合理开发和有效利用水资源、建立精确灌溉决策支持系统奠定了基础。
An appropriate simulation model established in this article by uses the crop growth period rainfall of observational data of Zhangye district during 1981-1990.Specific research approach is the use of five point three smoothing method to process the original data and reuse of Gaussian function simulation analysis the rainfall in the crop growth period at this district.Inspected the simulation analysis results and variance analysis,we use smoothing methods to transform the original data,because the random errors of original data were eliminated and improve the quality of the data,thus make the accuracy of simulation results has been further improved,and can established an accurate decision support system for irrigation and rational development and effective use of water resources.
出处
《农业系统科学与综合研究》
CSCD
2011年第3期306-310,共5页
System Sciemces and Comprehensive Studies In Agriculture
基金
教育部"春晖计划"科研合作项目(Z2004-1-62043)
甘肃省教育厅科研项目(0401-3)
关键词
降雨量模拟
数据平滑
高斯函数
精确灌溉
Simulation the rainfall
Data smoothing
Gaussian function
Precise irrigation
