Abstract：
Ecological shading fueled by maize intercropping in tea plantations can improve tea quality and flavor, and efficiently control the population occurrence of main insect pests. In this study, tea plants were intercropped with maize in two planting directions from east to west (i.e., south shading (SS)) and from north to south (i.e., east shading (ES) and west shading (WS)) to form ecological shading, and the effects on tea quality, and the population occurrence and community diversity of insect pests and soil microbes were studied. When compared with the non-shading control, the tea foliar nutrition contents of free fatty acids have been significantly affected by the ecological shading. SS, ES, and WS all significantly increased the foliar content of theanine and caffeine and the catechin quality index in the leaves of tea plants, simultaneously significantly reducing the foliar content of total polyphenols and the phenol/ammonia ratio. Moreover, ES and WS both significantly reduced the population occurrences of Empoasca onukii and Trialeurodes vaporariorum. Ecological shading significantly affected the composition of soil microbial communities in tea plantations, in which WS significantly reduced the diversity of soil microorganisms.
摘要：
茶园玉米间作的生态遮荫可以改善茶叶品质和风味，有效控制主要害虫的种群发生。在这项研究中,茶树与玉米在从东到西的两个种植方向上间作(即，南阴影(SS))和从北到南(即，东遮阳(ES)和西遮阳(WS))形成生态遮阳，以及对茶叶品质的影响，研究了害虫和土壤微生物的种群发生和群落多样性。与非着色控件相比，生态遮荫显著影响了茶叶中游离脂肪酸的营养含量。SS,ES,和WS均显着提高了茶树叶片中茶氨酸和咖啡因的含量以及儿茶素质量指数，同时显着降低总多酚的叶面含量和酚/氨比。此外，ES和WS均显着减少了Empoascaonukii和TrialeurodesVapariorum的种群发生。生态遮荫显著影响茶园土壤微生物群落组成,其中WS显著降低了土壤微生物的多样性。
