宁夏中宁枸杞生长季光热资源对发育期的影响

Effects of Light and Heat Resources on Growth Period of Lycium barbarum in Zhongning of Ningxia

利用中宁国家基本观测站1990-2021年气象资料,对中宁枸杞生长季光热资源进行分析。结果表明:中宁枸杞发育期最低气温、最高气温、平均气温在各月均呈现明显增温趋势,且最低气温的增温速率高于最高气温的增温速率;≥10℃积温从1990-2020年整体呈上升趋势,气候倾向率达到200.3℃/10a;在枸杞不同发育期也呈上升趋势;全发育期平均日照为1878 h,近30 a日照时数呈线性减少趋势,减少率-48.7 h/10a;中宁枸杞发育期天数呈增加趋势,芽开放枸杞生育期生长季热量增加,造成生长季延长,采果批次增加,黑果病的发生概率减少,枸杞药用品质提高,但高温日数增加,采果期缩短,果实变小,夏眠期延长。

Based on the meteorological data from Zhongning National Basic Observation Station from 1990 to 2021,the light and heat resources in Zhongning were analyzed during the growth stage of lycium barbarum.The results showed that the lowest temperature,the highest temperature and the average temperature had an obvious warming trend in each month,and the warming rate of the lowest temperature was higher than that of the highest temperature;The accumulated temperature≥10℃had an overall increasing trend from 1990 to 2020,and the climate tendency rate reached 200.3℃/10a,with increasing trend at different developmental stages of Lycium barbarum;The average sunshine duration in the whole development period was 1878 hours,and the sunshine duration in recent 30 years had a linear decreasing trend,with a decreasing rate of-48.7h/10a;The number of days in the development period of Zhongning Lycium barbarum had an increasing trend.The heat at the growth stage increased during the growth of budding period in Lycium barbarum,result in the extension of the growth season,the increase of batches for picking fruit,the reduction of the incidence of black fruit disease and the improvement of the medicinal quality of Lycium barbarum,but the number of high-temperature days increased,the period for picking fruits was shortened,the fruit became smaller and the aestivation period was prolonged.