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(一) 产量的时空变化与光、水、热的关系我们收集了全省代表县1970—1981年历年的全县平均亩产量、有关地区农业科研单位的大小麦区域试验资料、近两年的苗情观测资料,以及有关的专题试验资料,经过分析,获得了一些看法。首先分析一下产量的空间分布与气候条件的关系。把各县大小麦常年平均亩产量和同期的大小麦播种一成熟全生育期内的常年正积温(日平均气温大于0℃的积温,下同),平均
(A) the relationship between spatial and temporal changes in production and light, water and heat We collected the average yield per mu in the county from 1970 to 1981 in the representative counties of the province. The data on the experimental areas for wheat and wheat in the agricultural research institutes in the past two years Miao situation observation data, as well as the relevant topic experimental data, after analysis, got some opinions. First, analyze the relationship between the spatial distribution of production and climatic conditions. The average annual output of wheat and wheat in the county average annual output of wheat and wheat in the same period a mature full-term positive annual accumulated positive temperature (daily average temperature greater than 0 ℃ accumulated temperature, the same below), the average