中国农学通报2025，Vol.41Issue(14)：101-110,10.
柴达木盆地二十四节气降水非均匀性变化对枸杞产量和发育期的影响
Effect of Precipitation Heterogeneity in 24 Solar Terms on Yield and Growth Stage of Lycium barbarum in Qaidam Basin
摘要
Abstract
In order to study the heterogeneity of precipitation in the 24 solar terms in Qaidam Basin and its influence on the yield and growth stage of Lycium barbarum,daily precipitation data from 10 stations in Qaidam Basin during 1961-2020 were used by mathematical statistics,inverse distance weight interpolation(IDW)method,Mann-Kendall mutation test and other statistical methods.The characteristics of temporal and spatial variation,periodic variation and mutation test of precipitation concentration and concentration period in 24 solar terms were analyzed.The results showed that the annual precipitation of the 24 solar terms showed an overall increasing trend and decreased from east to west in space.The Cv value of precipitation in the west was obviously greater than that in the east,and the precipitation showed a decreasing trend in 2000 and an increasing trend in 2001.PCD showed an insignificant decreasing trend,and the precipitation distribution tended to be uniform.The maximum value was 0.83(in 1984),and the minimum value was 0.55(in 2007).The spatial distribution was different,showing a small-large-small-large change pattern from east to west.PCP showed an insignificant advance trend,the highest value appeared between'Great Heat'and'Start of Autumn',and the lowest value appeared between'Grain Buds'and'Grain in Ear',and showed a'late-early-early-late-early'spatial distribution from east to west.There was no mutation of PCD in 60 years.There were 5 mutations in PCP,3 mutations were decreased and 2 mutations were increased.The precipitation of the 24 solar terms has a significant effect on the yield of Lycium barbarum,but the precipitation concentration and the precipitation concentration period of the 24 solar terms have little effect on the yield of Lycium barbarum.The influence of precipitation,concentration degree and concentration period of the 24 solar terms on the key stage of Lycium barbarum growth in Qaidam Basin is completely different.关键词
二十四节气/降水量/非均匀性变化/枸杞/产量/发育期/柴达木盆地Key words
24 solar terms/precipitation/heterogeneous change/Lycium barbarum/yield/development period/Qaidam Basin分类
天文与地球科学引用本文复制引用
许学莲,颜亮东,马军,雷玉红,文生祥,陈丽雯..柴达木盆地二十四节气降水非均匀性变化对枸杞产量和发育期的影响[J].中国农学通报,2025,41(14):101-110,10.基金项目
国家自然科学基金"高寒枸杞花蕾期低温冷害指标研究(41765008)". （41765008）
