Ntoo tawv ntoo yog ntau tshaj li cov ntaub tiav ntawm tsob ntoo. Qhov tseeb, cov txheej txheem ntxim nyiam tshwm sim hauv cov tawv ntoo uas tseem ceeb rau kev muaj sia nyob ntawm tsob ntoo. Nyeem cov lus tseeb txog kev ua haujlwm ntawm tsob ntoo ntoo ntawm no.
Txoj haujlwm ntawm tsob ntoo tawv yog dab tsi?
Ntoo tawv ntoo muab kev ua haujlwm ruaj khov rau tsob ntooCov haujlwm tiv thaiv Cov tawv ntoo tiv thaiv ntoo los ntawm te, cua sov thiab noo noo. Resin tiv thaiv tsob ntoo los ntawm kab mob thiab kab tsuag. Callus overflows qhov txhab nyob rau hauv daim tawv nqaij. Kev loj hlob zog yog thauj nyob rau hauv lub bast ntawm cov tawv ntoo thiab cambium.
tsob ntoo tawv li cas?
tsob ntoo tawv ntoo muaj los ntawm sab hauv tawm ntawmcambium,raffiathiabbark yog ib txheej nyias ntawm cov ntaub so ntswg nyob thiab tsuas yog qhov chaw loj hlob nkaus xwb lub luag haujlwm rau kev loj hlob ntawm cov ntoo tuab. Cambium hlwb tsim ntoo rau sab hauv thiab bast rau sab nraud. Muaj ntau yam kev ua hauv bast vim tias cov suab thaj sib txuas tau thauj hauv tsob ntoo. Cov kab mob bast tuag sib sau ua ke los tsim cov tawv ntoo sab nrauv, pom ib feem ntawm tsob ntoo tawv ntoo.
Cov ntoo tawv ntoo ua haujlwm dab tsi?
Tsob ntoo ntoo muab qhov tseem ceebtiv thaiv kev ua haujlwm rau tsob ntoo nrog rau qhov kev faib tawm dav dav:
- Kev tiv thaiv tawm tsam sab nraud xws li Frost, tshav kub, noo noo thiab hluav taws.
- Txoj haujlwm tiv thaiv kab mob thiab kab tsuag los ntawm cov dej ntws.
- Kev tsim ntawm qhov txhab ntoo (callus) tom qab kev ua si los yog cov kab nrib pleb.
- Txoj hlua rau muab cov hauv paus hniav, tua thiab buds nrog kev loj hlob zog.
Dab tsi tshwm sim tawv tawv
Koj tuaj yeem paub cov ntoo los ntawm kev ntxhib los mos ntawm lawv cov tawv ntoo. Jagged scaly bark yog yam ntxwv ntawm sycamore maple, ntoo qhib lossis ntoo thuv. Striped bark yog feem ntau ntawm arborvitae thiab poplar. Silver birches yog ib qho yooj yim los txheeb xyuas vim lawv cov tawv nqaij du, dub thiab dawb.
tsob ntoo puas muaj sia nyob tsis muaj tawv?
Ib tug ncej ntoo yuav ciaj tsis taus yog tsis muaj nws cov tawv ntooYog cov tawv ntoo, bast thiab cambium ploj lawm, ntoo raug rau sab nraud cuam tshuamprotectionless. Yog tsis muaj cambium loj hlob txheej, thickness kev loj hlob collapses. Yog tias tsob ntoo poob nws cov bast, kev thauj khoom ntawm cov suab thaj tseem ceeb kawg. Ib tsob ntoo tuaj yeem kho qhov poob ntawm ib qho ntawm cov tawv ntoo los ntawm kev npog lub qhov txhab nrog callus.
Lub cork ntoo qhib (Quercus suber) occupies ib txoj hauj lwm tshwj xeeb. Ntawm no bark thiab bast tsis ruaj khov rau cambium. Peeled bark yog rov ua dua tshiab los ntawm cov seem cambium.
Tip
Tub ntoo ua zaub mov
Ib yam tsis paub ntau txog tsob ntoo tawv yog nws siv los ua zaub mov. Qhov tseeb, bark yog edible tsuav yog nws tsis yog ib tug tshuaj lom tsob ntoo hom. Cov ntaub so ntswg cambium yog haum rau kev noj. Thaum lub sijhawm xav tau, tsob ntoo tawv ntoo muab cov vitamins, qab zib thiab fiber ntau. Tsob ntoo bark yog noj boiled, kib, nyoos los yog qhuav thiab av rau hauv hmoov rau sau bark bread.
