湖南省油茶林产量调查研究

通过连续7年对湖南省25个油茶林样地的产量状况进行调查测定,结果表明:油茶自然低产林平均产果量只有2 382 kg/hm~2,油茶低产林经改造后产量提高2.01倍,4年平均产果量达到了4 788 kg/hm~2。油茶林采用良种+良法,造林第四年产果量1 249.5 kg/hm~2,第五年产果量3 075 kg/hm~2,第六年产果量5 497.5kg/hm~2,盛产期产果量9 757.5 kg/hm~2。油茶花期,油茶花芽分化与油脂转换高峰期的气候条件对油茶产量有较大的影响,尤其是油茶盛产期良种林,由于其产量高,对水、养分等需求量大,更容易受花期低温阴雨、高温干旱等灾害性气候的影响。

Survey on the yield of Camellia oleifera in Hunan Province

25 plots of camellia forest were consecutivly measured for seven years in Hunan Province ,the result showed that average fruit production of low-yield forest was only 2 382 kg/hm2 ,by engineering production increased 2.01 -fold, four-year average fruit yield reached 4 788 kg/hm2.Good law and improved variety were used,afforestation fourth annual amount of fruit was 1 249.5 kg/hm2 ,the fifth annual amount of fruit was 3 075 kg/hm2 ,the sixth annual amount of fruit was 5 497.5 kg/hm2 ,rich amount of fruit produced was 9 757.5 kg/hm2.The climatic conditions of flowering camellia, camellia flower bud differentiation and peak oil conversione specially had a greater impact on production,due to its high yield,water,nutrients and other high demand,was more susceptible to low temperature during flowering rain,high-drought temperature and other disasters.