Qhov sib txawv tseem ceeb ntawm nitrogen fixation thiab nitrification yog cov nitrogen fixation yog cov txheej txheem ntawm hloov atmospheric nitrogen rau ammonium ions thaum lub nitrification yog cov txheej txheem ntawm hloov ammonium ions rau nitrite los yog nitrate ions.
Lub voj voog nitrogen yog ib lub voj voog biogeochemical tseem ceeb uas piav qhia txog tus cwj pwm thiab kev hloov pauv ntawm nitrogen molecule los ntawm huab cua, av thiab dej hiav txwv ecosystems. Kwv yees li ntawm 80% ntawm cov cua yog nyob ntawm cov pa nitrogen. Txawm li cas los xij, microorganisms npog no atmospheric nitrogen rau hauv daim ntawv siv tau. Tom qab ntawd, qhov no nitrogen circulates los ntawm lub voj voog nitrogen. Yog li ntawd, muaj plaub theem tseem ceeb ntawm lub voj voog nitrogen uas yog nitrogen fixation, nitrification, denitrification, ammonification thiab assimilation.
Nitrogen Fixation yog dab tsi?
Tib neeg thiab lwm yam tsiaj tsis muaj lub tshuab lossis cov enzymes los hloov cov pa nitrogen rau hauv daim ntawv siv tau. Txawm li cas los xij, qee cov kab mob xws li kab mob, xiav-ntsuab algae, lichens, thiab lwm yam muaj peev xwm ua tau.
Daim duab 01: Nitrogen Cycle
Tsis tas li ntawd, ntau yam txheej txheem ntuj xws li xob laim, hluav taws kub tawg, thiab lwm yam tuaj yeem hloov pauv atmospheric nitrogen rau hauv cov ntaub ntawv siv tau. Yog li ntawd, nitrogen fixation yog qhov kev hloov pauv ntawm atmospheric nitrogen rau hauv ammonium ions hauv av. Tsis tas li ntawd, cov kab mob symbiotic thiab cov kab mob tsis muaj sia nyob yog feem ntau koom nrog hauv kev kho nitrogen. Azatobacter yog ib tug kab mob genus uas kho atmospheric nitrogen. Thiab tseem Rhizobium yog lwm hom kab mob uas muaj cov kab mob symbiotic uas kho atmospheric nitrogen rau hauv ammonium ions.
Nitrification yog dab tsi?
Nitrification yog hloov pauv ntawm ammonium ions lossis ammonia rau hauv nitrate ions. Qhov no yog ob kauj ruam txheej txheem. Ua ntej, ammonium ions hloov mus rau nitrite ions los ntawm cov kab mob Nitrosomonas. Thib ob, nitrite ions hloov mus rau nitrate ions los ntawm cov kab mob Nitrobacter.
Daim duab 02: Nitrification
Yog li, qhov no yog txheej txheem tseem ceeb vim tias nitrate yog cov nroj tsuag siv tau ntawm nitrogen. Yog li ntawd, qhov no yog ib qho tseem ceeb thiab tseem ceeb kauj ruam hauv cov zaub mov ntawm cov nroj tsuag. Ib yam li ntawd, cov kab mob uas koom nrog hauv cov kauj ruam no yog hu ua nitrifying bacteria.
Dab tsi yog qhov zoo sib xws ntawm Nitrogen Fixation thiab Nitrification?
- Nitrogen Fixation thiab Nitrification yog ob kauj ruam tseem ceeb ntawm nitrogen
- Cov kab mob kab mob muaj feem cuam tshuam nrog ob kauj ruam.
- Lawv ob leeg yog cov txheej txheem lom neeg.
- Ob kauj ruam tsim cov nroj tsuag nkag tau ntawm nitrogen hauv av.
Qhov txawv ntawm Nitrogen Fixation thiab Nitrification yog dab tsi?
Nitrogen fixation yog txheej txheem ntawm hloov atmospheric nitrogen rau hauv ammonium ions hauv av. Nitrification yog txheej txheem ntawm kev hloov ammonium ions rau hauv nitrate ntawm ob kauj ruam. Nitrogen fixers nqa tawm cov nitrogen fixation thaum nitrifying kab mob nqa tawm cov nitrification. Ob qho txheej txheem tseem ceeb heev. Cov nram qab no infographic nthuav qhia qhov txawv ntawm nitrogen fixation thiab nitrification nyob rau hauv ib daim ntawv tabular.
Summary – Nitrogen Fixation vs Nitrification
Nitrogen fixation thiab nitrification yog ob kauj ruam tseem ceeb ntawm lub voj voog nitrogen uas tau tsav los ntawm cov kab mob. Kev hloov pauv ntawm atmospheric nitrogen rau hauv ammonium lossis ammonia hauv av yog cov txheej txheem nitrogen fixation thaum hloov pauv ntawm cov ammonium ions rau nitrate hauv av yog cov txheej txheem nitrification. Nitrogen fixation yog ua raws li nitrification. Yog li ntawd, ob theem no yog cov txheej txheem lom neeg. Nitrogen fixers nqa tawm cov nitrogen fixation thaum nitrifying kab mob ua cov nitrification. Qhov no yog qhov txawv ntawm nitrogen fixation thiab nitrification.
