trophic level
释义
营养层次，摄食层次，营养水平；
英英释义
Trophic level
The trophic level of an organism is the position it occupies in a food chain. The word trophic derives from the Greek τροφή (trophē) referring to food or feeding.
以上来源于:Wikipedia
双语例句
Rational soil fertilization could improve soil nutrition and leaves nutritious level.
本实验的施肥试验表明，合理的土壤施肥可以提高土壤营养和叶片营养水平。
Ecologists assign every organism in an ecosystem to a feeding level,or trophic level,depending on its source of food or nutrients.
生态学家分配在生态系的每个有机体到一个哺养的水平或者食性层次，根据它的食物或营养素的来源。
权威例句
Interactions Among Three Trophic Levels: Influence of Plants on Interactions Between Insect Herbivores and Natural EnemiesEcosystem response to solar ultraviolet-B radiation: influence of trophic-level interactions
Trophic level asynchrony in rates of phenological change for marine, freshwater and terrestrial environments
Standardized diet compositions and trophic levels of sharks
Climate change and unequal phenological changes across four trophic levels: constraints or adaptations?
Number of trophic levels in ecological communities
The Effect of Dietary Nitrogen Content on Trophic Level15N Enrichment
Mixed messages across multiple trophic levels: the ecology of bark beetle chemical communication systems
Habitat fragmentation causes immediate and time‐delayed biodiversity loss at different trophic levels
Impacts of fishing low-trophic level species on marine ecosystems
1. The average trophic level of what is being caught is rising — and this in principle should indicate improving ecosystem health.
食物链等级体系中的高等级物种平均捕获率(而捕获正在并将持续进行)处于持续上升态势之中——按照所谓食物链等级理论，这应当意味着海洋生态系统的健康平衡发生了变化。
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2. The next best way to quantify the amount of protoplasm in each trophic level is to weigh it.
确定每一个营养阶层原生质总量的第二个好办法是称重。
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3. The ecosystem appears to be a young weak one caused by overfishing, with small and low-valued fishes dominated and low ecotrophic efficiency for trophic level I.
系统受过度捕捞渔业影响很大，并存在营养级I利用效率低和渔业资源小型化、低值化等不稳定的幼态特征。
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4. According to the comprehensive trophic level index (TLI), the values of Tangxi reservoir were between 30 and 50. It showed that the reservoir was mesotrophic.
结果表明，汤溪水库综合营养状态指数(TLI)在30 ~50之间，属中营养水平。
youdao
5. Producers are often referred to as being in the first trophic level and are called autotrophs by the heterotrophs.
生产者通常被称为第一营养级，被异养称为自养。
youdao
6. The fractions and distribution of bioavailable phosphorus in river sediments were studied in order to identify the trophic level of inflow rivers to the west of Taihu Lake.
为了解太湖入湖河道的营养状况，研究了太湖西部河流沉积物生物利用磷的组成与分布。
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7. Many reports have showed that the transgenic plants have some disadvantages and potential influences on the non-target species, even the higher trophic level organisms, e. g. predators and parasites.
现有一些资料表明：转基因植物对有益生物如天敌尤其是寄生性天敌将产生一些潜在的不利影响。
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8. The main characteristic of trophic level of each watershed is: The degree of eutrophication is more serious in flood season than in dry reason, in upstream than in downstream along the watershed.
各流域富营养化主要特征是：丰水期比枯水期严重，从上游到下游逐渐加重。
youdao
9. In chapter 3, in this paper, we investigated a three trophic level food chain system with periodic constant impulsive perturbations for top predator.
第三章将在对顶级捕食者进行脉冲干扰，即周期性的向食物链中投放定量的顶级捕食者的前提下，研究三种群食物链系统的稳定性。
youdao
10. In chapter 3, in this paper, we investigated a three trophic level food chain system with periodic constant impulsive perturbations for top predator.
第三章将在对顶级捕食者进行脉冲干扰，即周期性的向食物链中投放定量的顶级捕食者的前提下，研究三种群食物链系统的稳定性。
youdao
11. The next best way to quantify the amount of protoplasm in each trophic level is to weigh it.
确定每一个营养阶层原生质总量的第二个好办法是称重。
-- 来源 -- 英汉 - 辞典例句
12. A photosynthetic green plant or chemosynthetic bacterium, constituting the first trophic level in a food
生产者，自养有机体构成食物链上的第一级营养层次的可进行光合作用的绿色植物或化能合成的细菌；自养有机体
-- 来源 -- 英汉 - 短句参考
13. trophic level
营养级
-- 来源 -- 英汉 - 短句参考
14. trophic level [
生态]食性层次|营养水平
-- 来源 -- 英汉 - 翻译参考[网络]
15. Producer The first TROPHIC LEVEL, in a food chain.
生产者：食物链中第一个营养级。
-- 来源 -- 网友提供
16. "because energy, in the form of heat, is lost at each step, or trophic level, chains do not normally
由于能量以热的形式在每个阶段(或营养级)中都有损失,因此食物链一般不超过四或五个营养级。
-- 来源 -- 英汉 - 翻译样例 - 行业
trophic level
