tsib txheej txheem nyob rau hauv lub voj voog nitrogen - kho, uptake, mineralization, nitrification, thiab denitrification - tag nrho yog tsav los ntawm cov kab mob. Tib neeg cuam tshuam lub ntiaj teb nitrogen lub voj voog feem ntau los ntawm kev siv cov chiv nitrogen.
Dab tsi yog nitrogen flux?
Tag nrho N flux yog kwv yees li 61% nitrate, 2% ammoniathiab 37% ntxiv yog yaj thiab cov organic nitrogen. Lub flux ntawm ammonia thiab cov feem ntawm cov organic nitrogen tam sim no nyob rau hauv cov ntaub ntawv yaj thiab feem ntau yog kwv yees los ntawm cov ntaub ntawv concentration. … Thaum lub sij hawm 1955–1970 nitrate flux nruab nrab yog 328 000 t / xyoo.
Dab tsi tuaj yeem cuam tshuam lub voj voog nitrogen?
Cov kws tshawb fawb tau txiav txim siab tias tib neeg tab tom cuam tshuam lub voj voog nitrogen los ntawm kev hloov pauv cov nitrogen uas khaws cia hauv biosphere. Tus thawj culprit yog fossil fuel combustion, uas tso cov nitric oxides rau hauv cov huab cua uas ua ke nrog lwm cov khoom los tsim smog thiab kua qaub nag.
Dab tsi yog 5 qhov kev hloov pauv uas nitrogen tau ntsib hauv lub voj voog nitrogen?
Microbes zom cov organic teeb meem los tsim ntau cov nitrogen muaj nyob hauv cov av. Mineralization/immobilization, nitrification, nitrate leaching, denitrification, thiab cog uptaketuaj yeem tshwm sim.
tsib txheej txheem hauv lub voj voog nitrogen yog dab tsi?
Kev hloov pauv loj ntawm nitrogen yog nitrogen fixation, nitrification, denitrification, anammox, thiab ammonification (Daim duab 1).
