塑料大棚内茄子上节肢动物群落的能量研究

茄子塑料大棚内节肢动物群落由２１ 种物种组成，可分为植食性、捕食性、寄生性、重寄生性和蜘蛛等五个亚群落。整个群落的热值和能量生产在４ 月和７ 月出现两个峰值，４ 月份的日均能量值达３７ ．５５Ｊ／ 株。群落的能量生产与植食性和捕食性亚群落的能量生产相关，与其他亚群落的能量生产无关。８ 月份植食性亚群落的日均能量值最大，为２０ ．９０Ｊ／ 株，４ 月份最低，仅为１３ ．９７Ｊ／ 株，其能量生产与桃蚜种群的能量生产呈显著相关。捕食性亚群落的能量值在４ 月份最大，为２１．２６Ｊ／ 株，五月前其能量生产与拟长毛钝绥螨种群的能量生产呈显著相关。蜘蛛亚群落的日均能量值６ 月份最大，为７．９１Ｊ／ 株。寄生性亚群落的日均能量值呈逐月上升趋势，８ 月份达到最大值，为４．４９Ｊ／ 株，其能量生产与桃蚜茧蜂和蚜茧蜂种群的能量生产相关，重寄生昆虫仅１ 种，能量值极低且几乎没有变化。

STUDY ON ENERGY DYNAMICS OF ARTHROPOD COMMUNITY ON EGGPLANT IN PLASTIC SHED

Arthropod community including 21 different species on eggplant in plastic shed was divided into phytophagous,predacious,parasitic,hyper-parasitic and arachnid sub-communities.There were two peaks of caloric and energy value of the community in April and July respectively.In April,daily average energy value was 37.55J per plant.Energy currency dynamics of the community was significantly correlated with that of phyophagous and predacious sub-communities,but wasn't correlated with that of other sub-communities.Energy currency dynamics of the phytophagous sub-community,with energy value of 20.90J per plant in August and 13.97J per plant in April,was significantly correlated with that of Myzus persicae population.The peak of daily average energy value of predacious sub-community was 21.26J per plant in April.Before May,energy dynamics of the sub-community was obviously correlated with that of Amblyseius pseudologisnosus population.In June,the peak of energy value of arachnid in August as it was increased monthly.The energy dynamics of the sub-community was correlated with that of Ephedrus persicae spp and Aphidilus spp population.The energy value of hyper-parasitic sub-community was the lowest and was almost constant.