Siv lub ntsuas dej kom pom cov ntoo noo noo thiab cov khoom ntoo
1, Qhov chaw thiab lub xeev ntawm noo noo nyob rau hauv ntoo
Thaum tsob ntoo muaj sia loj hlob, nws cov hauv paus hniav tsis tu ncua nqus dej los ntawm cov av, thiab xylem ntawm tsob ntoo lub cev nqa cov dej mus rau ntau yam kabmob ntawm tsob ntoo. Nyob rau tib lub sijhawm, cov as-ham uas tsim los ntawm nplooj photosynthesis raug thauj mus rau ntau qhov chaw ntawm tsob ntoo los ntawm phloem ntawm tsob ntoo pob tw. Dej tsis yog tsuas yog cov khoom siv rau kev loj hlob ntawm tsob ntoo, tab sis kuj yog cov cab kuj rau kev thauj ntau yam khoom. Tom qab cov ntoo muaj sia raug txiav thiab saws rau hauv ntau yam tshwj xeeb ntawm cov ntoo square, feem ntau ntawm cov dej tseem nyob hauv cov ntoo, uas yog qhov tseem ceeb ntawm cov dej hauv cov ntoo. Nyob rau tib lub sijhawm, ntoo kuj nqus qee cov dej rau hauv nws sab hauv thaum khaws cia, thauj, lossis siv.
Rau ntau hom ntoo, muaj qhov sib txawv ntawm cov dej noo ntawm xylem hauv lub cev. Txawm hais tias tib tsob ntoo loj hlob nyob rau lub caij sib txawv, cov dej noo ntawm nws cov xylem sib txawv. Cov ntsiab lus noo noo ntawm ntau qhov chaw ntawm xylem, xws li ntoo siab, sapwood, keeb kwm, lub cev, thiab tua, kuj txawv, yog li kev faib ntawm cov dej noo hauv cov ntoo tsis sib xws. Thaum cov huab cua puag ncig ntoo hloov, nws cov dej noo kuj hloov raws li. Cov dej noo tuaj yeem muab faib ua dej dawb, dej adsorbed, thiab Peb hom dej ua ke: (1) Cov dej dawb muaj nyob rau hauv cov kab loj loj uas muaj cov pits lossis perforations ntawm qhov kawg ntawm cov ducts ntawm cov phab ntsa ntoo, cov kab noj hniav ntawm tes, thiab cov chaw sib txuas. uas sib txuas lus nrog ib leeg. Cov dej dawb yog lub cev khi rau ntoo thiab tsis nruj nreem khi. Cov dej no yog ib qho yooj yim kom khiav tawm ntawm cov ntoo thiab tuaj yeem nqus tau yooj yim. Cov ntoo ntub yog muab tso rau hauv cov huab cua qhuav thiab thawj qhov ua rau evaporate yog dej dawb. Rau cov ntoo ntsuab tshiab, ntau hom ntoo muaj dej dawb Cov ntsiab lus sib txawv heev, feem ntau ntawm 60-70 feem pua thiab 200-250 feem pua.
Moisture Content ntawm Ntoo thiab Sab Hauv Ib puag ncig
Qhov chaw nyob sab hauv tsev uas tib neeg nyob yuav tsum tsis txhob muaj qhov hloov pauv ntau dhau ntawm cov av noo thiab yuav tsum ruaj khov nyob rau hauv ib qho chaw, uas muaj txiaj ntsig zoo rau kev noj qab haus huv ntawm tus kheej thiab khaws cia khoom. Cov ntaub ntawv tshawb fawb qhia tau tias qhov txheeb ze av noo ntau los tiv thaiv pwm ntub yog 0-80 feem pua ; 0-70 feem pua lossis 80-100 feem pua rau kev tiv thaiv kab tsuag; Txuag phau ntawv rau 40-60 feem pua ; 55 feem pua -60 feem pua tiv thaiv kab mob; Cov neeg tuag tsawg tsawg ntawm 60-70 feem pua , thiab cov av noo ntawm tib neeg nyob ib puag ncig yuav tsum nyob ib puag ncig 60.
Muaj ntau yam uas tuaj yeem ua rau muaj kev hloov pauv ntawm cov av noo nyob hauv tsev, xws li kev hloov pauv ntawm sab nraud lossis sab hauv tsev, uas tuaj yeem ua rau cov av noo hloov pauv; Cov dej vapor ntws hauv lossis tawm ntawm lub qhov rais huab cua los yog huab cua pauv, cov dej vapor hla ntawm phab ntsa, thiab cov dej vapor los ntawm chav ua noj kuj tuaj yeem ua rau cov av noo hloov pauv.
