Characteristics and correlations of meteorological elements during growth period of summer maize in Hebei Province
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Abstract:
In order to deeply explore the relationship between meteorological factors and summer maize yield, the annual yield data and related meteor ological factors in Hebei Province were analyzed using different methods such as climate propensity rate, M2K mutation test, and correlation test. Based on this, the relevance and the degree of action of the two are discussed. The results showed that: the av erage, maximum and minimum temperatures in Hebei Province showed a significant upward trend, while the sunshine hours, precipitation, relative humidity, and wind speed showed a significant downward trend; from 1960 to 2017, the meteorological output of summer corn in Hebei Province was significantly reduced at - 568 kg/ hm2 per 10 a; meteorological output is negatively related to average temperature, maximum temperature, minimum temperature, and is positively related to sunshine hours, precipitation, relative humidity, and wind speed; precipitation, minimum temperature and wind speed are the key factors affecting the meteorological output of summer maize in Hebei Province. The research results can provide theoretical support for optimizing the structure of agricultural resources and promoting the sustainable development of regional agriculture.
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