Climate Analysis of the Suitable Altitude Range for Growing Common Crops in Huaihua
To analyze vertical characteristics of agricultural precipitation and heat in the mountainous aera of Huaihua,the meteorological data of nine altitudes in Huaihua from 2011 to 2021 were analyzed. The results showed that as the altitude rises,the annual average temperature de-crease is 0.47 ℃/100 m,the starting stable date and the ending stable date of every node air temperature are delayed or advanced by 2-4 days every 100 meters,the average decrease in active accumulated temperature of≥0℃ is 179.9℃·d/100 m,the average decrease in ef-fective accumulated temperature of ≥10 ℃ is 128.3 ℃·d/100 m,the average extreme low temperature reduction is about 0.50 ℃/100 m,the annual rainfall at various altitudes is above 1350 mm. Generally,areas with an altitude below 400 m are areas with sufficient heat,which is suitable for the growth of warm crop varieties,the extreme low temperature in winter at an altitude of>700-1000 m significantly decreases,protective measures should be taken for warm crops to overwinter. There is less heat at an altitude of more than 1000 m,so it is recommended to plant crop varieties that love cooling and have strong cold resistance.
万方数据
维普
