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food chain of aquatic ecosystem
释义
food chain of aquatic ecosystem
Encyclopedia
农学
食物链
释
food chain of aquatic ecosystem
水生生态系统食物链
在水生生态系统中,从植物、细菌和有机物开始,物质和能量通过摄食与被摄食在各营养级的水生生物间依次传递所形成的链状营养关系。当能量在食物链传递时,每经过一个营养级就有一部分能量会损失掉。因此,食物链不可能无限加长,水生生态系统食物链的营养级通常只有4~5级。
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weighing method
weighing sensor
weighing type metering device
weight
weight average molar mass
weight-average molar mass
weight average molecular weight
weight-average molecular weight
weight class
weight decay
weight-decay procedure
weight decomposition
weight detection
weight diagram
weight discrepancy test
weight distribution
weight distribution function
weight drop source
weighted
weighted approximation
weighted arithmetic average
weighted arithmetic mean
weighted automaton
weighted average
weighted average cost of capital
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