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在自然生长条件下,选取三峡库区44个青蒿生长地点,对影响青蒿花蕾青蒿素含量的相关因素进行主成分分析.结果表明:前3个主成分累计百分率为89.258 6%,可以用来表述影响花蕾青蒿素含量相关因素的全部信息.主成分1为青蒿的阳光土壤因子,主成分2为青蒿的立体气候因子,主成分3为青蒿的生物量因子.将44个青蒿生长地点分为4类,根据青蒿素种植需要进行集中选择,筛选出阳光土壤因子和立体气候因子最佳的青蒿种植地点为三峡库区的酉阳县和秀山县,与目前三峡库区青蒿原料的实际采集地点吻合.
Under the conditions of natural growth, principal components analysis was made on the relative factors affecting the artemisinin content of Artemisia annua L. The results showed that the cumulative percentage of the first three principal components was 89.258 6% Is used to describe all the factors that affect the budding artemisinin content.The main component 1 is the sunshine soil factor of A. annua, the main component 2 is the three-dimensional climatic factor of A. annua and the main component 3 is the biomass factor of A. annua L. 44 Artemisia annua growing sites are divided into four categories, according to the needs of artemisinin planting focus on the selection of sunshine soil factors and the best three-dimensional climate factor Artemisia planting sites for the Three Gorges Reservoir Youyang County and Xiushan County, and the current The Three Gorges Reservoir Artemisia annua raw material collection site coincide.