Carbon Cycle. Izimiso ukubaluleka

Esikhathini uHlu Jikelele Lwamakheli; iplanethi yethu kukhona okuningi izinqubo eziyinkimbinkimbi okubangelwa umsebenzi obalulekile eziphilayo, umthelela izinguquko womuntu futhi yokuziphendukela kwemvelo ezazenzeka yembathani ukujiya kanye ekujuleni kwezilwandle. Lowo oyinhloko Umjikelezo carbon. Ngaphandle kwayo, ukuphila eMhlabeni.

Ngokwengxenye enkulu, ukuzungeza carbon is a indlela global obhekene abatholako futhi kukhuthaza emkhathini -carbon dioxide. Nokwenziwa carbon sonke siyazi photosynthesis, futhi banesibopho lokhu ingxenye isitshalo. Khetha / ukubuya carbon dioxide kwenzeka ngokusebenzisa umoya eziphilayo kuye ophilayo, umsebenzi wamabhizinisi ezimbonini kanye noqhekeko izinqubo

Isikimu lomjikelezo carbon uyomelela ngokugcwele inqubo unezigaba ezimbili:

• Nokwenziwa kwe-carbon dioxide (CO ₂₎ izitshalo, ezincane eziphilayo eziphilayo kanye nenguquko kwalo okwalandela ku eziyinkimbinkimbi eziyisisekelo chemical compounds (amafutha, carbohydrate, amaprotheni).
• Ukubuya carbon dioxide emoyeni ngokusebenzisa kwezimila izidalwa eziphilayo, futhi ngezinye izindlela.

Nokho, umjikelezo carbon inqubo more xaka. Ngakho, ngemva kokufa eziphilayo, ezinye zazo okwenziwa ama-bacterium ahlukanisa futhi empeleni abuyele kuye emkhathini esikhathini esifushane yesikhathi. Kodwa ingxenye izinsalela iguqulwe zibe izinto ezifile.

Kuyinto izinsalela udaba eziphilayo eminyakeni ambalwa izoguqulelwa, futhi ekugcineni jikisa amalahle, uwoyela Peat. Lezi namaminerali isetshenziselwe izinhloso ezinhlobonhlobo human ne-carbon wabo izobuyiselwa emkhathini.

Eceleni ufuna ukuhlala endaweni CO ₂ inqubo yokutakula emjikelezweni carbon.

Amafutha. Lipolysis zasezindaweni ezihlukahlukene kungenzeka ngenxa iqhaza kule nqubo nezilwanyana ezincane kokuba enzyme cleavage iqondiswe lokhu kwakwakhe. Ngenxa yalokhu, kuba glycerol futhi fatty acid ephakeme chungechunge. Glycerol ubola ku pyruvic acid (PVK). Kuyinto, kuye ngokuthi izimo, liphenduka amanzi, acid noma utshwala ne-carbon elithwala umoya kuzobekwa obala.

Carbohydrate. Lezi izinto kukhona abathwali eyinhloko fibre okuyinto abeyizuzile futhi kusetshenzwe kuphela nezilwanyana ezincane ezithile. Ngokuhamba ukucutshungulwa kwakhiwa yayo glucose, okuyinto oxidized cishe zonke izinhlobo isikhunta namagciwane. Ngenxa yalokho, i-glucose ihlukaniselwe amanzi nesikhutha. Lokhu - hhayi ukhetho kuphela. Inqubo namachibi kungaholela ekwakhekeni-methane, kodwa ukukhulula carbon esibophezelayo.

Ngenxa yokuthi zonke izinqubo akuzona ezifanayo ngokuya flow yayo, izinhlobo ezimbili zezinkokhelo kunyatheliswa izakhi ezikulesi uHlu Jikelele Lwamakheli:

• Geological (kumiswa izidubedube) - ingafinyelela izinkulungwane futhi izigidi zeminyaka.
• Eziphilayo (ukufa kanye noqhekeko zezitshalo nezilwane) - inqubo esebenzayo kakhulu ukuthi kungathatha kuphi kusukela izinsuku ezimbalwa iminyaka eminingana.

Yiqiniso, incazelo okuchazwe lapha kungenye olukha phezulu kakhulu futhi akuvezi okushiwo yezinqubo zamakhemikhali nezinye okwathi ngawo izwe osekelwa umjikelezo carbon.