Ntau Yam Tseem Ceeb Tshaj Plaws vs Net Tsim Nyog Tseem Ceeb
Koj puas tau xav tias yuav ua li cas zaub mov tuaj rau hauv peb txhais tes? Tsiaj txhu thiab lwm yam khoom siv tsis tuaj yeem noj lossis siv lub hnub ci zog, tab sis cov nroj tsuag photosynthetic thiab algae muaj peev xwm ua tau zoo. Nws zoo nkaus li tias kev tsim cov khoom noj yuav tshwm sim hauv cov nroj tsuag los ntawm kev siv lub hnub ci zog ntawm photosynthesis, uas yog thawj qhov tsim. Yog li ntawd, thawj qhov kev tsim khoom yuav tsum pib ua khoom noj los yog ua lwm yam lus los khaws lub zog uas siv tau rau cov tsiaj muaj sia. Thaum ob qhov adjectives Gross thiab Net tau muab tso ua ntej lub ntsiab lus tseem ceeb ntawm kev tsim khoom, cov ntsiab lus sib txawv ntawm ib leeg.
Primary Productivity yog dab tsi?
Cov khoom lag luam tseem ceeb yog kev tsim cov organic tebchaw, feem ntau hu ua zaub mov, siv cov pa roj carbon dioxide ua raw cov ntaub ntawv thiab hnub ci ua lub zog. Txawm li cas los xij, chemosynthesis kuj tshwm sim thiab ua rau cov khoom lag luam tseem ceeb. Kev tsim tawm thawj zaug yuav luag txhua qhov chaw hauv ntiaj teb los ntawm photosynthesis thiab chemosynthesis. Raws li lo lus Primary txhais tau hais tias, nws yog thawj zaug uas tsim cov khoom noj. Qhov tseem ceeb, nws tuaj yeem tshwm sim nyob txhua qhov chaw thiab txhua lub sijhawm yog tias lub zog muaj. Qhov kev faib ua feem ntau tshaj plaws ntawm cov khoom tseem ceeb yog tshwm sim los ntawm photosynthesis thaum nruab hnub nyob rau hauv qhov chaw qhib, thaum cov kab mob chemosynthetic hloov tshuaj lub zog ntawm cov tebchaw rau cov khoom noj khoom haus hauv txhua qhov chaw txhua lub sijhawm. Ob qho tib si terrestrial thiab dej ecosystems pab txhawb rau thawj tsim. Cov carbohydrates yooj yim yog thawj cov khoom tsim tawm hauv cov khoom tsim thawj, tab sis tom qab ntawd cov no tau hloov mus rau hauv complex, ntev chain carbohydrates, proteins, lipids, thiab nucleic acids. Kev tsim khoom tseem ceeb yog lub zog tsav tseem ceeb uas txhawb nqa txoj sia.
Ntau Yam Tseem Ceeb Tshaj Plaws yog dab tsi?
Tag Nrho Cov Khoom Siv Tseem Ceeb feem ntau yog luv ua GPP, thiab nws tsuas yog tag nrho cov khoom noj tsim tawm. Nws yuav tsum raug pom tias qhov no yog tus nqi uas cov autotrophs lossis cov neeg tsim khoom tseem ceeb ntawm lub ecosystem tsim khoom noj nyob rau hauv lub sijhawm. GPP yog qhia nyob rau hauv huab hwm coj ntawm cov zaub mov nyob rau hauv ib cheeb tsam (thaj av) los yog ntim (dej) rau ib lub sij hawm (piv txwv li grams ib square meter ib xyoo).
Net Primary Productivity yog dab tsi?
Nws yog qhov nthuav kom pom tias cov khoom noj tsim tau siv los tsim lub zog hauv daim ntawv ntawm Adenosine Triphosphate (ATP) rau tag nrho cov tsiaj nyob nrog rau cov nroj tsuag los ntawm kev ua pa. Qhov ntawd txhais tau hais tias thawj cov neeg tsim khoom lawv tus kheej siv cov khoom noj ntau heev rau kev ua pa. Yog li ntawd, cov khoom noj muaj rau cov neeg tau txais kev pab nyob rau hauv ib qho ecosystem txawv ntawm GPP. Net Primary Productivity (NPP) txhais tau tias yog cov khoom noj uas tseem tshuav. Hauv lwm lo lus, NPP yog qhov sib txawv ntawm GPP thiab cov khoom noj uas siv rau kev ua pa los ntawm cov neeg tsim khoom hauv lub sijhawm thiab cheeb tsam. Qhov ntawd txhais tau tias, NPP yog lub zog tsav lub neej, hais txog zaub mov.
Dab tsi yog qhov sib txawv ntawm Cov Qauv Tseem Ceeb Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Tawm Txog Kev Tshawb Fawb Txog Kev Tshawb Fawb Txog Kev Lag Luam Kev Lag Luam.
Tsuas yog, nws zoo li qhov sib txawv ntawm cov nyiaj hli tag nrho thiab cov nyiaj hli, tab sis qhov sib txawv tsim yog nthuav kom paub txog piv rau qhov tseeb tias kev txiav tawm ntawm cov nyiaj hli ua rau tsis muaj kev lom zem.
• GPP yog tag nrho cov khoom noj uas tsim los ntawm cov neeg tsim khoom thaum NPP yog cov khoom noj seem tshuav thaum cov nyiaj poob rau kev ua pa los ntawm cov neeg tsim khoom raug rho tawm ntawm GPP.
• GPP tuaj yeem cuam tshuam NPP tab sis tsis yog lwm txoj hauv kev.
• NPP yog qhov tseem ceeb rau cov neeg siv khoom ncaj qha thaum GPP tseem ceeb rau cov neeg tsim khoom ncaj qha.
