李茶混交模式效益研究

李茶间作茶园内定位观测和分析结果表明,影响茶叶产量和品质的小气候条件及土壤条件均得到了较大的改善。在林分结构上,表现为李茶地上部分和地下部分呈垂直方向上的成层性、水平方向上的交错和镶嵌性,较纯茶园复杂完善;在时间结构上,表现为李茶生长在时间上具有部分重叠和互补协调性;在茶树的生理特性上,间作茶园中的茶树净光合速率与纯茶园中的茶树净光合速率差别不大,而茶树的呼吸速率、蒸腾强度均较纯茶园低。因此,间作茶园较纯茶园对环境资源利用充分,且茶叶产量和品质具备了优于纯茶园的生理学基础。可见,李茶间作模式具有较好的生态学基础。

mdmcy from the Intercroppaing of Plum and Tea

Position observation and analysis showed that the microclimate and soil greatly affected the tea yield and quality in the tea garden intercropped with plum.The structure of forest stand was more appropriate than that of pure tea garden.Aerial and subterranean parts of plum and tea trees had the character of tiers vertically,the feature of crossing and inlaying horizontally.In terms of time structure,there were partially overlapping and mutual complementariness for plum and tea growth.In addition,compared with the pure tea garden,the net photosynthesis speed of tea was almost the same in the intercropped garden.However,the breathing speed and the transpiring intensity were lower than those of tea trees in the pure tea garden.Therefore,environmental resource was fully exploited and the yield and quality of tea had a physiological foundation.In short,there was a better ecological basis for this kind of intercropping pattern.