低温阴雨对丹东地区粮食作物产量的影响
[Abstract]:Based on the analysis of spring meteorological data from 1978 to 2015 in Dandong region, the degree of damage to grain crops was studied from the aspects of low temperature, low light and much rain, and three different disaster grades were classified. The expected yield of crops was calculated by Lagrangian interpolation method and the loss of grain crops caused by low temperature rain was separated by separation method. The correlation between low temperature rainy season and grain crop yield in Dandong region was discussed. The results showed that: (1) the yield of rice and soybean in Dandong area showed obvious stage change. (2) the effects of low temperature rain weather on crops were as follows: corn soybean rice, low temperature rain weather, low temperature rain weather, The influence of soybean is relatively great, the influence is as follows: soybean corn rice, rainy low temperature cloudy weather has much greater influence on corn and soybean than rice.
【作者单位】: 辽宁省丹东市气象局;沈阳市浑南区气象局;
【分类号】:S42
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