Qhov nruab nrab qhov tob ntawm CCD calcite them qhov tob yog dab tsi)?
Qhov nruab nrab qhov tob ntawm CCD calcite them qhov tob yog dab tsi)?

Video: Qhov nruab nrab qhov tob ntawm CCD calcite them qhov tob yog dab tsi)?

Video: Qhov nruab nrab qhov tob ntawm CCD calcite them qhov tob yog dab tsi)?
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Cov calcite them nyiaj qhov tob nyob nruab nrab ntawm 4 thiab 6 km hauv dej hiav txwv niaj hnub thiab aragonite them nyiaj qhov tob (ACD) tshwm sim rau nruab nrab ntawm li 3 km saum toj no (Morse thiab Mackenzie, 1990 thiab cov ntaub ntawv nyob rau hauv).

Yog li ntawd, qhov nruab nrab qhov tob ntawm CCD yog dab tsi?

Nyob rau hauv cov dej hiav txwv niaj hnub no, lub CCD yog nruab nrab ntawm 4 thiab 5 km tob. Nws yog qhov tob dua hauv qhov chaw uas cov dej tshiab los ntawm qhov chaw tuaj yeem ntws tawm CO2- nplua nuj dej tob, thiab ntiav qhov twg ntau cov plankton tuag tsim cov CO2.

Ib yam li ntawd, vim li cas CCD ntxaum hauv Atlantic? Lub lysocline yog ntiav nyob rau sab hnub tuaj Atlantic vim muaj cov khoom tsim tau ntau ntxiv (txog thaj chaw zoo) thiab cov organic teeb meem tsub zuj zuj hauv cov av av, uas ua rau qis pH thiab nce kev tawg.

Qhov thib ob, qhov nyiaj calcite qhov tob lossis CCD yog dab tsi?

Carbonate them nyiaj qhov tob ( CCD ) yog qhov tob nyob rau hauv dej hiav txwv hauv qab no uas tus nqi ntawm mov calcite ( calcium carbonate ) lags qab tus nqi ntawm kev daws teeb meem, xws li tsis muaj calcite yog khaws cia.

Dab tsi tuaj yeem hloov qhov kev them nyiaj qhov tob?

Thaum tshav ntuj nkag mus rau hauv dej, lub them nyiaj qhov tob sib txawv nrog dej hiav txwv tej yam kev mob. Piv txwv li, nrog kev nce hauv kev tsim khoom muaj kev nce hauv phytoplankton pejxeem, nrog rau cov naj npawb ntawm zooplankton uas noj phytoplankton.