2025 biology talkshow: 植物與微生物的氮素循環盛宴 episode artwork

EPISODE · Sep 30, 2025 · 29 MIN

2025 biology talkshow: 植物與微生物的氮素循環盛宴

from 雷比特生物空中講 · host 雷比特老師

提供一篇關於植物如何獲取與利用氮元素的詳細概述,解釋氮在生命中的關鍵作用以及植物面臨的「氮悖論」——儘管空氣中氮氣豐富,植物卻無法直接使用。詳細闡述兩種主要的無機氮來源:硝酸鹽(NO₃⁻)與銨(NH₄⁺),並分析了它們各自的優缺點。此外,著重介紹氮循環的四大主要過程,包括由微生物和閃電完成的固氮作用、回收有機氮的氨化作用、分兩階段將銨轉化為硝酸鹽的硝化作用,以及將多餘硝酸鹽釋回大氣的脫氮作用。強調微生物在氮元素轉化中的核心地位,並總結這個複雜且精密的地球化學循環對植物生長和生態健康的重要性。 聽完後可以自主進行線上測驗,檢視學習成效喔~(需要登入gemini) 測驗網址  https://g.co/gemini/share/737e7d0d6f69 Powered by Firstory Hosting

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2025 biology talkshow: 植物與微生物的氮素循環盛宴

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