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水生生态系统食物链
释义
水生生态系统食物链
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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method of real cyclotomic field
method of records classification according to content features
method of records classification according to Geographical features
method of records classification according to object
method of records classification according to Process
method of reduced gradient type
method of reduction
method of reduction of dimension
method of reduction of order
method of reel-up
method of regularization
method of relaxation
method of renormalization
method of repeated substitution
method of residues
method of restricted maximum likelihood
method of retarded potentials
method of Ritz-type
method of rock mechanics analysis
method of rotations
method of round-off
method of saddle points
method of scale
method of sections
method of sedimentation equilibrium
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