黄连通常栽培在海拔1500米左右的山地。一般生长7～8年后采挖。为了发展黄连生产,汉中地区开展了低海拔(600米～1100米)栽培黄连试验,并已推广生产,提供商品。我们对该区生长在海拔600米和1100米两处的黄连,分别按不同生长年限和一年中不同月份进行小檗碱含量测定,以探求小檗碱在黄连不同生长期中的变化规律,为确定黄连最适收获期提供依据。 Coptis usually cultivated at about 1,500 meters above sea level in the mountains. General growth 7 to 8 years after digging. In order to develop Coptis chinensis production, trials of Coptis chinensis growing in low altitude (600m ~ 1100m) have been carried out in Hanzhong area and have been promoted to produce and provide commodities. We are in the area growing at 600 meters above sea level and 1100 meters of berberine, respectively, according to different growth years and different months of berberine content determination in order to explore berberine changes in the different growth stages of Coptis, To determine the optimum harvest period to provide the basis for Coptis.