摘要
采用田间调查的方法,利用种类丰富度(S)、物种多样性(H')和均匀性(J)指数分析了超级稻田间节肢动物群落的变化规律。结果表明,害虫以飞虱(褐飞虱和白背飞虱)、二化螟、黑尾叶蝉数量较多;天敌以八斑球腹蛛、草间小黑蛛和黑肩绿盲蝽数量居多;整个群落的多样性指数不高,均低于3;黑肩绿盲蝽和八斑球腹蛛的生态位宽度值较小,对害虫具有较好的控制效果,八斑球腹蛛与各类害虫的生态位重叠值较大,是超级稻田重要的捕食性天敌。
The dynamic change （S） , the diversity index （ H＇ ） hopper （ including Nilaparvata of arthropod community in super rice field was analyzed on the species richness and evenness index （J） by the field survey method. The results showed that plant lugens and Sogatella furcifera ） , Chilo suppressalis and Nephotettix cincticeps were the dominant insect pests, and Theridion octomaculatum, Erigonidium graminicola and Cyrtorhinus lividipennis were the major natural enemies in super rice field. The diversity indices of all insects of the arthropod community were low （ 〈 3 ） in the field. The niche breadth indices of Cyrtorhinus lividipennis and Theridion octomaculatum were small, indicating their good controlling effects on insect pests. The niche overlap indices between Theridion octomaculatum and various insect pests were large, indicating that Theridion octomaculatum was the important predator in the field.
出处
《杂交水稻》
CSCD
北大核心
2014年第6期78-81,94,共5页
Hybrid Rice
基金
湖南省现代农业产业技术体系[湘农业联(2012)278号]
湖南省科技厅项目(2010NK3011,2011FJ4298)
湖南省农业厅超级稻项目
