Assessment and Countermeasure of the main meteoro Ioclical disasters on Corn over Son.cI-Shan area
Based on the meteorological observation station data of Chifeng and Gangzi and the Corn yield(yield in a unit) of Songshan area from 1961 to 2011, the influence of water and heat condition of growing season on the corn weather production was analyzed, and the disaster losses was quantitatively assessed. The results showed that using combination of methods of 5-year moving average and linear fit to calculate the corn weather yield was more objectivity and closer to the actual situation. Favorable climate conditions made the corn average yieht in- creasing to 890.3kg per hectare, adverse climatic conditions made the corn average yield reduce to 634.5 kg per hectare. The relationship between the climatic condition of the Corn growing season and corn meteorological yieht was closed. Drought was a major natural disaster of the corn reduction output, and was 76.6% of the total reduction yield. Secondly, staged chilling damage was the main cause. Climate warming trend was in favor of in corn yield on the whole, but Corn weather yield amplitude tended to increase.
NETL
NSTL
万方数据
维普
