林茶间作的理论基础研究

A THEORETICAL STUDY ON THE NUMBER OF TREES IN AN INTERPLANTED TEA STAND

复合生态系统是提高土地、时间、空间利用率的有效途径，目前国际国内已有许多复合经营的生态系统，并且取得很好的效果，南京林业大学实习林场从七十年代开始建立了林茶间作复合茶园，既提高了产量，又提高了茶叶的质量，取得了好的经济效益，然而，复合经营茶园的栽树数量、遮荫面积和遮荫时间是复合茶园规划设计和调控中迫切需要解决的问题，本文为此提供单树遮荫面积和茶园各点遮荫时间的计算方法，据些来确定复合茶园的合理布局和优化调控措施，以使茶园获得适宜的光照和良好的生态环境，达到提高茶叶的产量和质量．

Comprehensive management of ecosystems is an effective way for promoting temporal and special uses of land.Recently there are many comprehensively managed ecosystems which have achieved good results both in china and abroad.A pine-tea interplantation was established in 1970＇s.in Xiashu Experimental Forest Station of Nanjing Forestry University for promoting the yield and quality of tree leaves and consequently for increasing economic benefits.However,the number of interplanted trees which are closely related to the shading area and time on tea plants should be reasonably determined in planning and designing a tree—tea interplantation.In this paper the shading area and time of a single pine tree are calculated.Consequently the number of trees needed per hectare can be determined in order to obtain favorable light intensity and environmental conditions for promotion of the yield and quality of tea leaves.