【摘要】 根据22年茶桕混交的观察测定,结果表明:茶桕混交具有良好的生物学基础,能形成合理而稳定的群体结构。混交林与纯茶园相比,可充分利用空间,增加光能利用;炎热季节冠下降低光照强度50％以上,降低温度2℃以上,增加相对湿度5～12％,耕作层降低含砂量11％以上,增加含水量1.37％,增加枯枝落叶,提高土壤肥力等,使乌桕和茶叶产量增加,效益提高。据最近3年实测表明:1hm~2茶桕混交林年均产茶叶859.3kg,桕子828.6kg,总产值达3792.3元。经38个乌桕品种和无性系与茶树混交试种,证明在干瘠的低山丘陵地带,以铜锤桕最好,每hm~2年产值达到5239.05元,高于同样条件下的一般乌桕品种与茶混交林产值的69.27％。茶桕混交方式以株间行间混交方式为好。茶树应适当密植。乌桕以每hm~2配置250～300株为宜。更多还原

【Abstract】 An observation was made on mixed stands of tea (Camellia sinensis Kuntze) and Chinese tallowtree [Sapium sebiferum (L.) Roxb.] in the past 22 years. The result indicates that the mixed stand is on reasonable biological basis so that a stable population structure has been established. Compared with pure tea stand, the mixed stand has a number of advantages, for instance, the sufficient use of solar energy, good soil conservation, reduction of light intensity by at least 50%, decrease of temperature by 2℃ under crowns in hot summer, and increase in litter, soil fertility and the production of tea and tallow tree as well. According to the data obtained in the last 3 yeays, the average production of tea is 859.3 kg and of seed of tallow tree 828.6 kg with a total income of 3792.3 Yuan RMB.38 varieties and clones of Chinese tallowtree were mixed with tea respectively. The variety of "Tongchui" mixture is proved to have the best performance in barren hill with a profit of 5239.05 Yuan per hectare,69.27% higher than those of the other mixtures under the same conditions. Single-tree and row mixings are found to be suitable patterns. In the mixture, tea should be well stocked and tallow tree about 250～300 in number per hectare.更多还原