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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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manifold of conics
manifold of constant curvature
manifold of flags
manifold of groups
manifold of Kähler type
manifold of lines
manifold of mappings
manifold of metrics
manifold of negative curvature
manifold of positive curvature
manifold of pre-assigned curvature
manifold of singularity
manifold of solutions
manifold of spheres
manifold of support
manifold of surfaces
manifold orientation
manifold structure
manifold tangent vector
manifold topology
manifold with a handle
manifold with boundary
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manifold without boundary
Manila Bay
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