Tag nrho cov khoom tsim tawm, lossis GPP, yog tus nqi ntawm lub hnub ci lub zog raug ntes hauv cov piam thaj molecules thaum lub sijhawm photosynthesis-zog ntes ib cheeb tsam ntawm ib chav tsev ib lub sijhawm. … Net thawj cov khoom tsim tau, lossis NPP, yog tag nrho cov khoom lag luam tseem ceeb rho tawm tus nqi ntawm lub zog poob rau cov metabolism thiab kev saib xyuas
Lub zog npaum li cas yog ntes thawj qhov tsim tawm?
Ntawm qhov nruab nrab, cov cog qoob loo tag nrho hauv ntiaj teb yog kwv yees li 5.83 x 10 6 cal m- 2 yr-1 Qhov no yog kwv yees li 0.06% ntawm lub hnub ci zog poob ib square meter nyob rau sab ntug ntawm lub ntiaj teb huab cua ib xyoos twg (txhais tias yog lub hnub ci tas li thiab sib npaug rau 1.05 x 10 10 cal m-2 yr- 1).
Dab tsi yog qhov sib npaug rau cov khoom lag luam tseem ceeb?
Txoj kev tsim khoom tag nrho ntawm lub kaw lus tuaj yeem pom nyob rau hauv ib qho kev sib npaug qhov twg Net Primary Production, lossis NPP, yog sib npaug rau Tag Nrho Cov Tseem Ceeb Ntau Lawm, lossis GPP, rho tawm Kev Ua Phem, lossis R. Cov qauv yogNPP=GPP - R NPP yog tag nrho cov txiaj ntsig ntawm cov nroj tsuag hauv ecosystem.
Lub ntsiab ntawm lub zog yog dab tsi hauv thawj qhov khoom lag luam?
Cov neeg tsim khoom tseem ceeb siv lub zog los ntawm lub hnub los tsim lawv tus kheej cov zaub mov hauv daim ntawv ntawm cov piam thaj, thiab tom qab ntawd cov neeg tsim khoom tseem ceeb tau noj los ntawm cov neeg siv khoom thawj zaug uas tau noj los ntawm cov neeg siv khoom thib ob., thiab lwm yam, kom lub zog ntws los ntawm ib qib trophic, lossis qib ntawm cov saw hlau, mus rau lwm qhov.
Yuav ua li cas yog thawj lub zog?
Pib tsim yog kev tsim cov tshuaj zog hauv cov organic tebchaw los ntawm cov kab mob nyobLub hauv paus tseem ceeb ntawm lub zog no yog lub hnub ci tab sis ib feeb ib feem ntawm cov khoom tsim tawm yog tsav los ntawm cov kab mob lithotrophic siv cov tshuaj lom neeg lub zog ntawm inorganic molecules.
