早稻不同生育期水稻-白背飞虱-拟水狼蛛食物链的能流动态研究  

Energy Flow Dynamic of Food Chain Rice-Sogatella Furcifera-Pirata Subpiraticus at Different Rice Growth Stages

作　　者：吕志跃[1] 杨海明[1] 颜亨梅[1] 卢学理[1] 王洪全[1] 

机构地区：[1]湖南师范大学生命科学学院动物学系,中国长沙410081

出　　处：《湖南师范大学自然科学学报》2002年第2期70-75,共6页Journal of Natural Science of Hunan Normal University

基　　金：国家自然科学基金九五重点项目 (39830 0 4 0 )

摘　　要：以能量为统计标准 ,系统地分析了不同水稻生育期稻田生态系统中水稻 -白背飞虱 (Sogatellafurcif era) -拟水狼蛛 (Piratasubpiraticus)的种群能流动态 .结果表明 :稻田能流分析法比单纯种群数量动态调查法更能科学、准确地反映不同水稻生育期白背飞虱的危害程度以及拟水狼蛛对白背飞虱的不同控制水平 .早稻全期 ,同化效率 :水稻 >白背飞虱 >拟水狼蛛 ;生长效率相反 ;白背飞虱的林德曼效率和消费效率明显低于拟水狼蛛 .虽然在整个早稻期间白背飞虱出现两次 (分蘖期、乳熟期 )种群能量高峰期 ,但水稻各生育期的生态效率显示 :拟水狼蛛对白背飞虱有良好的控制效应 。This study analyses systematically community energy flow dynamic of the food chain'rice - Sogatella furcifera - Pirata subpiraticus' in early rice field ecosystem. The results show that the energy flow method gains an advanage over the simple investigation of community-number dynamic in reflecting scientifically and accurately the harm level of Sogatella furcifera and the different control levels of Pirata subpiraticus to Sogatella furcifera at different rice growth stages. As to the whole early rice growth stage, rice's assimilation efficiency is higher than that of Sogatella furcifera, and much higher than that of Pirata subpiraticus's contrary to their growth efficiencies. Lindeman efficiency and consumption efficiency of Sogatella furcifera are much higher than that of Pirata subpiraticus. Though there are two peak stages of Sogatella furcifera community energy flow during the whole early rice growth stage, ecologe efficiencies show that Pirata subpiraticus can control Sogatella furcifera efficiently and milking stage should be more careful since it is the only sensitive stage to Songatella furcifera.

关 键 词：早稻 能流动态 能量流动 稻田生态系统 白背飞虱 拟水狼蛛 水稻生育期 食物链 

分 类 号：S181[农业科学—农业基础科学] S511.31