trophic level
音標(biāo)發(fā)音
- 英式音標(biāo) [?tr?f?k ?lev?l]
- 美式音標(biāo) [?trɑ?.f?k ?lev?l]
- 英式發(fā)音
- 美式發(fā)音
基本解釋
- [生態(tài)] 營(yíng)養(yǎng)級(jí)；食性層次
英漢例句
- The next best way to quantify the amount of protoplasm in each trophic level is to weigh it .
確定每一個(gè)營(yíng)養(yǎng)階層原生質(zhì)總量的第二個(gè)好辦法是稱重。
www.translation-dictionary.net - The average trophic level of what is being caught is rising -- and this in principle should indicate improving ecosystem health.
食物鏈等級(jí)體系中的高等級(jí)物種平均捕獲率（而捕獲正在并將持續(xù)進(jìn)行）處于持續(xù)上升態(tài)勢(shì)之中——按照所謂食物鏈等級(jí)理論，這應(yīng)當(dāng)意味著海洋生態(tài)系統(tǒng)的健康平衡發(fā)生了變化。 - 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.
系統(tǒng)受過(guò)度捕撈漁業(yè)影響很大，并存在營(yíng)養(yǎng)級(jí)I利用效率低和漁業(yè)資源小型化、低值化等不穩(wěn)定的幼態(tài)特征。
雙語(yǔ)例句
詞組短語(yǔ)
- Trophic c level 食性層次
- Trophic State Level 富營(yíng)養(yǎng)化水平
- evaluation of trophic level 富營(yíng)養(yǎng)化評(píng)價(jià)
- trophic level method 營(yíng)養(yǎng)動(dòng)態(tài)模式
- Trophic Level Index 綜合營(yíng)養(yǎng)評(píng)價(jià)法
短語(yǔ)
英英字典
- any of the layers of an ecosystem with the same position in the food chain
劍橋英英字典
專業(yè)釋義
- 營(yíng)養(yǎng)級(jí)
- 營(yíng)養(yǎng)水平
The biofilms with high trophic level in influent accumulated rapidly,the steady biomass and activity of biofilms were 1.59 and 1.5 times higher.
進(jìn)水水質(zhì)不同,基質(zhì)生物膜的形成時(shí)間有差異,進(jìn)水中相對(duì)高的營(yíng)養(yǎng)水平有利于基質(zhì)生物膜的積累,60 d內(nèi)形成的穩(wěn)定生物膜量相差1.59倍;生物膜活性也較大,平均相差1.5倍。 - 營(yíng)養(yǎng)階層
- 營(yíng)養(yǎng)層次
- 營(yíng)養(yǎng)級(jí)
- 營(yíng)養(yǎng)類型
- 營(yíng)養(yǎng)水平
Comparative studies on community structure of plankton and zoobenthos were carried out in four lakes with different trophic levels. The results showed that the higher the trophic level of the lake water, the lower the density and biomass of phytoplankton.
對(duì)四個(gè)不同營(yíng)養(yǎng)水平的湖泊中的浮游生物、底棲動(dòng)物群落結(jié)構(gòu)進(jìn)行了周年調(diào)查,浮游植物的密度和生物量與營(yíng)養(yǎng)水平呈正相關(guān)的變化趨勢(shì),四個(gè)湖泊中浮游植物種類數(shù)差異不明顯,但各門藻類密度及生物量組成差異明顯。 - 食性層次
- 營(yíng)養(yǎng)級(jí)
- 營(yíng)養(yǎng)水平;營(yíng)養(yǎng)級(jí)
- 營(yíng)養(yǎng)級(jí)