营养级 meaning in Chinese
trophic dynamics
trophic level
Examples
- Producer the first trophic level , in a food chain
生产者：食物链中第一个营养级。 - These microscopic organisms are assigned a trophic level ( tl ) of 1
这些微生物的营养级为1 。 - Birds are positioned at high trophic level within the food web in the ecosystem , and thus any changes within the system can affect the birds in one way or another
鸟类在生态系统中处于较高的营养级，生态系统中住何一个环节的变化都可能对鸟类造成一定的影响。 - The pyramid of biomass usually has a more gentle slope than the pyramid of numbers because organisms at successively higher levels in the pyramid tend to be larger than those below
由于在生物量金字塔中，那些依次位于较高营养级上的生物体往往大于较低营养级上的生物体，所以生物量金字塔通常具有相对于数量金字塔较为缓和的坡度。 - The water quality state was evaluated with shannon - weaver index and some indicators of periphyton , and results showed that the nutrient type of daoguanhe rerservoir was mesotrophic type , and it had a tendency to develop to the eutrophic type
11 .依据周丛藻类多样性指数及周丛生物某些指示种类评价该水库水质状态，判定为中营养型，并有向富营养级演化的趋势。