nutrient cycle

常见例句

At present, all nutrient elements are gradually enriched in the nutrient cycle of Fargesia denudata ecosystem.
目前，缺苞箭竹生态系统养分循环中，各种营养元素都在逐渐富集。
A comparative study on effects of various cultivation system on nutrient cycle of purple soil was conducted according to long term experiments.
用定位试验结果，比较聚土免耕、早三熟、平作等耕作制对紫色土氮磷钾养分循环结构和强度的影响。
In recent 10~20 years, the discovery of prochlorophyte and microbial food web has revealed the significance of nano\plankton in nutrient cycle and energy flow of aquatic ecosystem.
最近一二十年来，原绿藻和微食物网的重大发现已使人们充分认识到微型浮游生物在水域生态系统的养分循环和能量流动中的重要意义，也为微型浮游生物的研究提出了新的方向。