茶园昆虫群落稳定性机制

Mechanism on the Stability of Insect Community in Tea Garden

茶园常绿郁闭 ,茶丛内昼夜温差、湿度差小 ,小气候稳定 ,这些是形成稳定的茶园昆虫群落的基础。丰富的茶树种质资源增大了茶树昆虫的多样性 ;我国拥有的群落茶园、纯茶园等茶园生态系统的多样性 ,以及单行条植、双行和多行密植及间作等栽培模式的多样化皆丰富了茶园昆虫的物种多样性 ,从而强化了昆虫群落稳定性。茶园昆虫物种的多样组成了复杂的食物网、链 。

Tea garden are evergreen and close,in which the temperature and humidity vary little between day and night,and the microclimate is stable These are the basic factors resulting in the stability of insect community in tea garden The rich resource of tea plant variety raises the species diversity of insect on tea plant A number of tea garden ecosystems including various community tea garden and pure tea fields,and a lot of cultivating models such as single row planting,two or several rows close planting and intercropping richen the diversity of insect species,and therefore strengthen the stability of insect community The diversity of insect species cause complicated food web and food chain,which are the main components building into stability of insect community in tea garden