Yuav Siv Huab Cua Vaj Huam Sib Luag Hnub Ci Vaj Tsev Kho Tau Li Cas

Hnub ci yog qhov tseem ceeb ntawm lub zog rau cov nroj tsuag ntsuab los ua cov duab photosynthesis, thiab nws tseem yog lub hauv paus kub rau lub hnub ci vaj huam sib luag. Yog li no, thaum tsim lub tsev kab hnub ci vaj huam sib luag, thawj qhov tsim nyog yuav daws qhov teeb meem teeb pom kev zoo ntawm lub tsev cog khoom, thiab ua kom lub hnub ci nkag mus rau hauv lub tsev cog khoom kom txwv. Hnub ci vaj huam sib luag lub tsev ntsuab nyob rau sab qaum teb Suav yog siv thaum lub caij ntuj no, caij nplooj ntoo hlav thiab lub caij nplooj zeeg. Thaum lub caij ntuj no, lub hnub' s qhov siab tsawg tsawg, nrog rau cov hnub tuaj ntawm sab qab teb hnub poob thiab hnub poob qab teb kawg nkaus. Yog li, txhawm rau ua kom muaj kev siv ntau tshaj plaws ntawm hnub ci hauv lub caij ntuj no, lub hnub ci vaj huam sib luag lub tsev ntsuab feem ntau txais yuav cov kev taw qhia uas tig rau sab qab teb thiab txuas ntxiv rau sab hnub tuaj - sab hnub poob. Kev xyaum tau ua pov thawj tias qhov ntsuas kub sab nraud yog qhov tsawg heev thaum sawv ntxov lub caij ntuj no. Tom qab daim ntaub thaiv nyom qhib thaum sawv ntxov nyob rau sab hnub tuaj ntsuab tsev cog khoom, qhov kub nyob sab hauv tsev feem ntau poob qis.

Cov kev taw qhia ntawm lub hnub ci vaj huam sib luag tsev cog khoom yog qhov ua tau zoo rau sab hnub poob, uas yuav pab tau ntev lub sij hawm ci thaum tav su thiab tiv thaiv kub thaum hmo ntuj. Nws yog qhov tsim nyog kom tau li 5 degrees sab hnub poob, thiab yuav tsum tsis txhob tshaj 10 degrees. Thaum qhov teeb meem lub kaum sab xis ntawm lub teeb nce siab los ntawm 0 degrees txog 40 degrees, nws tsis tshua muaj cuam tshuam ntawm kev sib kis ntawm cov ntaub ntawv pob tshab. Tus nqi poob poob ntawm lub teeb nruab nrab tsuas yog ob peb feem pua; thaum qhov teeb meem lub kaum sab xis hloov tsis pub dhau 40 degrees txog 60 degrees, lub teeb ci tau kis Lub teeb xa hluav taws xob qhia qhov kev poob qis tseem ceeb nrog qhov nce ntawm qhov xwm txheej kaum; thaum qhov teeb meem lub kaum sab xis yog siab dua 60 degrees, lub teeb xa hluav taws xob qhia kev nqes los rau sab hauv. Yog li ntawd, qhov xwm txheej lub kaum sab xis ntawm 40 degrees lossis lub kaum sab xis kwv yees ntawm 50 degrees yog qhov tseem ceeb uas cuam tshuam qhov sib kis ntawm cov ntaub ntawv pob tshab. Thaum nyuam qhuav pib ntawm kev txhim kho lub hnub ci vaj huam sib luag tsev cog khoom, lub teeb pom kev zoo ntawm lub kaum qhov projection ntawm lub hnub ntawm lub teeb pom kev zoo ntawm lub tsev cog khoom ntawm lub caij ntuj no solstice mus txog 50 degrees tau tsim los ua lub teeb pom kev zoo tsim lub kaum sab xis.