人為活動產生不少溫室氣體,助長了全球氣候極端化的發生。不少國家亦開始提倡碳中和及減碳排放方案,務求可為下一代提供良好的環境生長。569Please respect copyright.PENANAGAwPhW1p5z569Please respect copyright.PENANAzv0YIX3ks2
569Please respect copyright.PENANAULIJU1aZ5i
除減少排放外,如何消除大氣的溫室氣體亦是一個重要課題;569Please respect copyright.PENANAhAPLfC87Np
現今相信約有30%人為活動所排放的二氧化碳將經由陸地的生態環境從大氣中移除開去。569Please respect copyright.PENANA23u3wjgiPu
569Please respect copyright.PENANAytAz4K6iAr
(圖2)植物的光合作用,能夠將大氣的二氧化碳轉化成為植物內部的碳水化合物。569Please respect copyright.PENANANCUnwnCSzv569Please respect copyright.PENANACrNOLowRwl
569Please respect copyright.PENANAy4yYVK2ayX
換句話說,植物能夠減低大氣間的二氧化碳,皆因它們能夠將二氧化碳氣體的碳原子轉換成為固體的碳原子狀態,把它們收藏在自身身體。569Please respect copyright.PENANAPU4NI1IueM
569Please respect copyright.PENANAVKDNjjZopg
那麼,是否只要瘋狂種樹,就能夠減低大氣的二氧化碳濃度,順利解決二氧化碳方面的問題呢?569Please respect copyright.PENANAcaUR5PSD3I
569Please respect copyright.PENANAJ8BuZ7LQi5
569Please respect copyright.PENANAXwZOu5Xgxi
(圖3)最近有研究發現,草叢移除大氣二氧化碳的能力有可能會較大樹的為好。569Please respect copyright.PENANAvh2VMCfQVc569Please respect copyright.PENANAbqUlM3rN5h
569Please respect copyright.PENANAeFjmjrA2Fj
雖然大樹本身能夠儲存碳水化合物的能力比草叢的為高,但為了持續供應大樹生長的所需,其根部會聯合各種細菌或生物來獲取泥土的營養,這過程中將會將泥土的碳原子以二氧化碳氣體釋放出去。569Please respect copyright.PENANAoge0EhyqUy
569Please respect copyright.PENANA4AvskrA5Ma
在部份實驗例子中,大樹不但沒能有效移除大氣二氧化碳,倒反而是增長了大氣二氧化碳含量。569Please respect copyright.PENANATXz45XQvmG
569Please respect copyright.PENANA6LSer7b8xL
如何平衡草叢及大樹種植的比例來獲取減滅二氧化碳的最大收益,將是重要的環保課題。569Please respect copyright.PENANAD03eD7YKkm
569Please respect copyright.PENANA5ALSaHGTaV
569Please respect copyright.PENANAk0MYUti8iF
569Please respect copyright.PENANAuxc1njuT5m
如果想我快啲出文的話,請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark,這對我非常之重要。569Please respect copyright.PENANA3orz2fzlLJ
569Please respect copyright.PENANAPuxeUmDCrz
Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc569Please respect copyright.PENANA225Ujbw1Ky
569Please respect copyright.PENANATxFPVj08zp
同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」,以課金的方式推動我繼續搜羅資料寫文,多謝。569Please respect copyright.PENANA22V2vwPGmo
569Please respect copyright.PENANA8a8XbERt3c
Link:569Please respect copyright.PENANA4XJxhjG6Mj
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio569Please respect copyright.PENANAsUa2NUmoy8
569Please respect copyright.PENANAB50zYFUQbk
569Please respect copyright.PENANAF9PJq8d20x
除非Facebook及IG重開侵侵的account,否則我的IG將不會再作更新,只會寄居本土LIHKG及Penana。569Please respect copyright.PENANALnf3zKea4s
569Please respect copyright.PENANALBvqnUVyWC
Ref1:https://www.nature.com/articles/s41586-021-03306-8569Please respect copyright.PENANAOTJQnHVJX2