【作者】 韩宝瑜； 董文霞； 崔林；

【Author】 Bao-yu Han~*, Wen-xia Dong and Lin Cui (Key Laboratory of Tea Chemical Engineerings of Ministry of Agriculture, P. R. China, Tea Research Institute of Chinese Academy of Agricultural Sciences, Hanzhou, 310008 P. R. China)

【机构】 农业部茶叶化学工程重点开放室中国农业科学院茶叶研究所；

【摘要】 2002年11月到2003年10月在华东地区,对栗—茶间作、李—茶间作、梨—茶间作三种茶果间作茶园和茶树单行条植茶园的昆虫和蜘蛛群落进行了2月1次的调查分析。结果表明:①栗—茶间作、李—茶间作、梨—茶间作、单行条植茶园的昆虫和蜘蛛群落的总丰富度分别是934、810、1014、635;益害物种比分别为1∶1.08、1∶1.13、1∶1.39、1∶9.45、1∶8.34,益害个体数比分别为1∶6.65、1∶6.94、1∶9.45、1∶8.34。②对丰富度、个体数、多样性指数、益害物种比、益害个体数比的动态图解分析表明间作茶园的昆虫和蜘蛛群落的丰富度和个体数明显大于单行条植茶园。③栗树、李树、梨树上昆虫和蜘蛛的物种组成相似,但是李树上昆虫和蜘蛛群落的均匀度、蜘蛛数高于梨树和栗树。四种类型茶园的茶行东西两侧昆虫和蜘蛛群落的各个特征指数差异不显著。间作茶园的蜘蛛的丰富度和个体数略高,这是由于许多蜘蛛转移到间作果树上越冬的缘故。研究表明:间作可以在一定程度上增大群落的多样性,因而可以增强天敌对害虫的控制潜能。栗—茶间作、李—茶间作是适宜的间作模式。更多还原

【Abstract】 From December of 2002 to October of 2003, the communities of insects and spiders in chestnut-tea intercrop (CTITG), plum-tea intercrop (PLTITG) and pear-tea intercrop (PETITG) tea gardens composed of clone excellent cultivar teas vs fruits, and single row tea garden (SRTG) were investigated at interval of two months in the eastern China. The results showed that: ① the total richness of CTITG, PLTITG, PETITG and SRTG was 108, 98, 98 and 68, respectively; the total abundance was in turn 934, 810, 1014 and 635, respectively; ratio of beneficial to harmful richness (RBHR) was 1 ? 1.08, 1 ? 1.13, 1 ? 1.39 and 1 ? 1.19, respectively; ratio of beneficial to harmful abundance (RBHA) was 1 ? 6.65, 1 ? 6.94, 1 ? 9.45 and 1 ? 8.34, respectively. ② the diagrammatizing analysis on dynamics of richness, abundance, diversity index, RBHR and RBHA indicated that both richness and abundance in intercrop tea gardens were obviously more than those of SRTG. ③ the species compositions in chestnut, plum and pear trees were similar to each other, but the eveness in chestnut trees was larger and spiders was more than those in plum and pear trees. The differences between richness, abundance, diversity index, RBHR and RBHA on eastern side and on western side of tea rows in four types of tea gardens were not significant. Both richness and abundance of spiders in intercrop tea gardens were slightly high. During overwintering, many spiders transferred onto intercrop trees. This study suggested that the intercrops could augment biodiversity to some extent, consequently, cumulate natural control potentials to pests. Chestnut-tea intercrop and plum-tea intercrop may be appropriate.更多还原