【摘要】 本文运用系统论观点和模糊数学方法建立了玉米气候适宜度动态模型,并利用盛产玉米的中国河北省和美国密苏里州的实测资料计算了各种玉米气候指数。结果表明,河北省的玉米气候条件略优于密苏里州。最后,通过对其动态形成的分析,并与生产实况相比较,证明了结果的可靠性以及适宜度理论和动态模型在农业气候资源评价中的应用价值。更多还原

【Abstract】 In this paper,a group of dynamic models, which can be used to describe quantitatively the extent suitable tovegetative growth and yield formation of corn crop,are set up by applying the viewpoint of systemotology and themethod of fuzzy mathematics. And various corn-climate indices are calculated, based on the data for 1951-1980 from24 meteorological observing stations in Hebei,China and Missouri, America. It is shown that the corn-climate re-source index(I_?),the efficiency index (I_?) and the utilization coefficient (C_?) of Hebei province are a little higher thanMissouri’s. Finally, the reliability of the results,and the applicability of the suitability-degree theory and the dynamicmodels in the assessment of agroclimatic resources are demonstrated by analysing the results and comparing them withthe facts.更多还原