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引言因为大面积农用地的地表是起伏不平的,因此研究地表起伏的小气候(此处小气候系指由标准仪器测定的局部地形气候)对作物产量的影响,有着很重要的实用价值。尽管对农田小气候做了大量的研究工作,但对农田小气候与生产率之间的定量关系至今尚未确定。这是方法上的原因,即把小气候的影响同土壤的影响分开来研究造成的。先前的田间试验,为我们所关心的相互关系的探索提供了依据。但把因素分开研究,这在实际上是不可能的。因为在自然条件下,它们总是共同起作用的。为此,本研究采用了一项田间植物蒸腾器的方
Introduction Because the surface of a large area of agricultural land is rugged, it is of great practical value to study the effects of fluctuating microclimate (where microclimate refers to the local topographic climate as measured by standard instruments) on crop yield. Although a great deal of research has been done on the microclimate of a farmland, the quantitative relationship between the microclimate and productivity of a farmland has not yet been determined. This is the methodological reason that causes the study of the effects of the microclimate and the influence of the soil. Previous field trials provided the basis for exploration of the interrelationships that we are interested in. But it is practically impossible to separate the factors. Because under natural conditions, they always work together. To this end, this study uses a field plant transpiration side