CHARACTERISTICS OF CONTINUOUS RAIN AND ITS EFFECT ON FORAGE YIELD IN GUOLUO AREA
Based on the observation data of precipitation and forage growth and so on from 1976 to 2020 at six meteorological stations in Guoluo Prefecture.The variation characteristics of continuous rain and its effect on forbage yiedl were analyzed by mathematical statistics and linear trend method The results showed that from 1976 to 2020,the continuous rain in Guoluo area increased at the rate of 0.665 times/10a.The duration of continuous rain is 5～14 days.Jiuzhi is the center of continuous rain in Guoluo area,and the duration is the longest.Mostly in summer.The precipitation,duration and intensity of continuous rain affect vegetation coverage,grass height and grass yield.The influence of continuous rain on vegetation is different in different areas and months.The spatial distribution of even overcast rain decreased from southeast to northwest.
NETL
NSTL
万方数据
