1993 年 48 巻 5 号 p. 501-507
The approach of model yields is described, where meteorological data are transformed into categories of abstract yields by means of models. The main model yield categories are the potential yield and the meteorologically possible yield. The meteorologically possible yield is treated as a integrated characteristic of agroclimatic resources.
The following main topics are discussed in this review paper: 1) method of model yields, 2) probabilistic nature of agroclimatic resources and their prediction, 3) territorial distribution of potential resources, 4) have there been changes in potential productivity during our century?
