Variation of Meteorological Factors During the Growing Season of Chenopodium quinoa in Qaidam Basin
Based on the temperature,precipitation,sunshine,wind speed,accumulated temperature≥0℃and the number of accumulated temperature days≥0℃from April to September in Delingha,Ulan,Duran and Golmud from 1981 to 2020,the characteristics of meteorological factors during the growing season of Chenopodium quinoa in Qaidam Basin were analyzed by linear trend method.The results showed that the average temperature,rainfall,accumulated temperature≥0℃and accumulated temperature days≥0℃of Chenopodium quinoa during the growing season showed an increasing trend,and passed the extremely significant test of 0.01.Sunshine duration,wind speed and climate tendency rate showed a decreasing trend,passing the extremely significant test of 0.01.It was a cold period before 1990s,and a warm period after 1990s.Before the 21st century,it was a period of less precipitation and a period of more precipitation.The results of the analysis have certain guiding significance for the rational use of local climate resources and the promotion of sustainable agricultural development in Qaidam Basin.
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万方数据
