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2007, vol. 31, br. 1, str. 187-195
Globalne promene klime i ciklus ugljenika u životnoj sredini
Univerzitet u Novom Sadu, Poljoprivredni fakultet
Ključne reči: emisija C; imobilizacija C; degradacija zemljišta; agrotehničke mere
Sažetak
Vezivanje (imobilizacija) ugljenika (C) u terestrijalni ekosistem podrazumeva usvajanje atmosferskog C u procesu fotosinteze i njegovu akumulaciju u živim organizmima i zemljištu. Gubici C iz terestrijalnih ekosistema nastaju kao posledica uništavanja šuma, paljenja biomase i ostalih aktivnosti koje vode ka prelasku iz prirodnih u poljoprivredne ekosisteme, obrade, drenaže vlažnih zemljišta, kultivacije organskih zemljišta, odnošenja biomase i njenog korišćenja kao gorivo i erozije zemljišta. Praksa koja vodi ka većem vezivanju C obuhvata pošumljavanje, konzervacijsku obradu, korišćenje malča, gajenje međuuseva i povećanje biodiverziteta. Vezivanje C u terestrijalim ekosistemima može da bude rešenje za smanjivanje koncentracije štetnih gasova u atmosferi u prvim dekadama 21. veka, dok se ne počne sa korišćenjem alternativnih goriva.
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