紫椴是长白山地区的主要蜜源之一。花期7月初至7月中,下旬。紫椴泌蜜涌,蜜质好,高产但不稳产。造成不稳产的主要原因是受气候的影响,其次是虫害。气候对紫椴泌蜜的影响不仅仅在开花期间,而且在花芽分化、形成的整个过程。据报道:紫椴的花芽分化是在上一年的7月份,7月～8月末是花芽分化的旺盛期,这期间的气候因素对花芽分化的数量、质量影响很大,因此, Tilia is one of the main sources of honey in Changbai Mountain. Flowering from early July to mid July and late July. Tilia secretion Mi honey, honey is good, high yield but unstable yield. The main reason for the instability is due to the impact of climate, followed by pests. The climate on Tilia secretion of honey not only during flowering, but also in flower bud differentiation, the formation of the entire process. It is reported: Tilia amurensis flower bud differentiation in July of the previous year, July to August is the exuberant period of flower bud differentiation, the climatic factors during this period have a great impact on the quantity and quality of flower bud differentiation, therefore,