Video: Dab tsi yog qhov net thawj productivity?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Net Primary Productivity . Lawv qhia net thawj productivity , uas yog ntau npaum li cas cov nroj tsuag carbon dioxide yuav siv sij hawm nyob rau hauv photosynthesis rho tawm ntau npaum li cas carbon dioxide cov nroj tsuag tso tawm thaum lub sij hawm ua pa (metabolizing suab thaj thiab starches rau lub zog).
Hais txog qhov no, dab tsi yog qhov txiaj ntsig tseem ceeb ntawm kev lag luam ecosystem?
Net thawj productivity , los yog NPP , yog tag nrho thawj cov khoom lag luam rho tawm tus nqi ntawm lub zog poob rau cov metabolism thiab tu. Hauv lwm lo lus, nws yog tus nqi uas lub zog khaws cia li biomass los ntawm cov nroj tsuag lossis lwm yam thawj cov neeg tsim khoom thiab tsim muaj rau cov neeg siv khoom hauv lub ecosystem.
Tsis tas li ntawd, net thawj cov khoom lag luam siv rau dab tsi? Net thawj ntau lawm ( NPP ) yog cov pa roj carbon ntau thiab lub zog uas nkag mus rau hauv ecosystems. Nws muab lub zog uas tsav tag nrho cov txheej txheem biotic, suav nrog cov trophic webs uas txhawb nqa tsiaj txhu thiab kev ua haujlwm ntawm cov kab mob decomposer uas rov ua dua cov khoom noj uas yuav tsum tau txhawb nqa. thawj kev tsim khoom.
Hais txog qhov no, koj ua li cas xam cov txiaj ntsig tseem ceeb?
Net Primary Productivity ( NPP ), los yog kev tsim ntawm cov nroj tsuag biomass, yog sib npaug rau tag nrho cov carbon coj los ntawm cov nroj tsuag los ntawm photosynthesis (hu ua Gross Thawj Kev tsim khoom lossis GPP) rho tawm cov pa roj carbon uas ploj mus ua pa.
Net productivity yog dab tsi?
Net productivity yog tus nqi ntawm lub zog uas nyob rau hauv cov organic teeb meem thaum lub sij hawm lub sij hawm teev nyob rau hauv ib tug muab trophic theem tsawg uas ploj los ntawm kev ua pa ntawm cov kab mob nyob rau theem ntawd. Lub rooj qhia cov nqi sawv cev rau qhov net productivity ntawm ntau yam ecosystems - ob qho tib si ntuj thiab tswj.
Pom zoo:
Productivity nyob rau hauv qhov project tswj yog dab tsi?
Cov lus txhais no hais txog cov haujlwm uas yuav tsum tau ua, cov peev txheej tau mob siab rau txoj haujlwm ntawd, thiab lub sijhawm uas yuav siv zog ua haujlwm. Kev txhim kho kev tsim khoom tsim tau los ntawm kev muaj peev xwm ntawm tus thawj tswj hwm qhov project los tsim cov haujlwm loj tshaj plaws nrog cov peev txheej tsawg tshaj plaws hauv lub sijhawm luv tshaj plaws
Dab tsi yog tsim nyob rau hauv thawj productivity?
Kev tsim khoom tseem ceeb yog ib lo lus siv los piav txog tus nqi ntawm cov nroj tsuag thiab lwm yam kab mob photosynthetic tsim cov organic tebchaw hauv ib qho chaw. Muaj ob yam ntawm cov khoom lag luam tseem ceeb: Cov khoom lag luam tag nrho = tag nrho cov photosynthetic tsim tawm ntawm cov organic tebchaw nyob rau hauv ib qho ecosystem
Dab tsi yog qhov txawv ntawm ib tus neeg cog lus uas muaj ntawv pov thawj thiab tus neeg ua haujlwm muaj ntawv pov thawj?
Certified Contractor Qee lub xeev siv 'certified' txhais tau tias 'licensed.' Ib tus neeg cog lus dav dav kuj tuaj yeem lees paub nrog ntau lub lag luam lossis tsoomfwv cov koom haum. Tus neeg cog lus muaj peev xwm yeej tau ntawv pov thawj raws li tus tsim ntsuab, piv txwv li, tsim lub zog siv hluav taws xob, tsev pheej yig lossis chaw ua haujlwm
Dab tsi yog qhov kev xav ntawm marginal productivity theory of distribution?
Kev sib tw zoo meej hauv kev lag luam khoom lag luam: Hais txog ib qho ntawm cov kev xav tseem ceeb ntawm marginal productivity txoj kev xav. Nyob rau hauv marginal productivity txoj kev xav, nws yog assumed tias muaj kev sib tw zoo meej hauv cov khoom lag luam. Yog li, kev hloov pauv ntawm cov khoom tsim tawm ntawm ib lub koom haum yuav tsis cuam tshuam rau kev lag luam tus nqi ntawm cov khoom
Qhov nce productivity yog dab tsi?
Txhais. Feem ntau yooj yim, nce kev tsim khoom txhais tau tias koj cov neeg ua haujlwm tso tawm cov khoom sai dua lossis ua tiav cov kev pabcuam ntawm tus nqi nrawm dua li ua ntej