摘要： 应用经验正交函数分析方法对北京市郊区各乡的小麦和玉米产量分解为空间分量和时间系数两部分.用逐步回归方法筛选影响空间分量和时间系数的环境和经济因子,组建因子结构模型.通过模型分析,指出粮食生产系统中存在的若干问题,并提出了相应的决策建议.
关键词:
产量场,
经验正交函数分析
Abstract: The yields of wheat and corn of various townships in Beijing suburban districts are divided by experimental orthogonal function analysis into two parts, the space component and the time coefficient. The environmental and economic factors affecting the space component and the time coefficient are sieved by stepwise regression, and factor structure models are established. Some problems in the grain production system are noticed through model analysis and a strategy is suggested to deal with them.
Key words:
grain yield field,
Experimental orthogonal function analysis
邓根云, 王伟民, 曹铮韵, 李健, 袁大琨, 欧阳红. 产量场的经验正交函数分析——粮食产量的时空特征与环境、经济因素的关系[J]. 华北农学报, 1987, 2(2): 8-18. doi: 10.3321/j.issn:1000-7091.1987.02.002.
Deng Genyun Wang Weimin Cao ZengyunLi Jian Yuan Dakun Ouyang Hong. THE EXPERIMENTAL ORTHOGONAL FUNCTON ANALYSIS OF GRAIN YIELD FIELDS——THE RELATION BETWEEN THE TIME-SPACE CHARACTERS OF GRAIN YIELDS AND ENVIRONMENTAL-ECONOMIC FACTORS[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1987, 2(2): 8-18. doi: 10.3321/j.issn:1000-7091.1987.02.002.