下图甲表示某湖泊中一种经济鱼类的种群特征图乙为该湖泊生态系统能量流动图解其中abc代表3个营养级数字均为实际测得的能量数单位为 Template




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tomski下图甲表示某湖泊中一种经济鱼类的种群特征图乙为该湖泊生态系统能量流动图解其中abc代表3个营养级数字均为实际测得的能量数单位为 coloring