Video: Vim li cas cov ntoo ntoo sab hnub tuaj yog tsob ntoo ntoo ntawm Ontario?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Sab hnub tuaj dawb ntoo thuv tau npe Ontario's official tsob ntoo hauv 1984. The tsob ntoo zoo nkauj silhouette tau nto moo los ntawm cov tswv cuab ntawm Pawg Xya tus kws ua yeeb yam. Nws cov ntoo mos, daj ntseg thiab loj loj tau tsim nws tus nqi thaum ntxov hauv Canadian keeb kwm rau cov khoom xws li rooj tog rau nkoj masts.
Tsis tas li ntawd, cov ntoo ntoo dawb sab hnub tuaj loj npaum li cas?
Sab hnub tuaj dawb ntoo thuv muaj qhov zoo tshaj plaws ntawm kev loj hlob piv rau lwm yam ntoo thiab hardwood hom nyob rau hauv nws cov haiv neeg. Hnub nyoog ntawm 8 thiab 20 xyoo, dawb pines tau paub txog loj hlob nyob ib ncig ntawm 4.5 feet ib xyoos, ntawm 20 xyoo lawv tuaj yeem ncav cuag qhov siab ntawm 40 feet (1, 2).
Tsis tas li ntawd, lub npe scientific yog dab tsi rau tus ntoo thuv dawb? Pinus strobus
Ib yam li ntawd ib tug yuav nug, koj tuaj yeem nrhiav tau ntoo ntoo dawb nyob qhov twg?
Thaum West Coast muaj siab dua ntoo , sab hnub tuaj paj dawb yog qhov loj tshaj plaws conifer ib txwm nyob rau sab hnub tuaj North America. Nws feem ntau pom nyob deb ntawm sab qaum teb li Newfoundland thiab mus txog rau sab qab teb mus rau sab qaum teb Georgia, ib qho kev nthuav dav ntawm thaj chaw loj hlob 3 txog 8. Lub behemoth no tuaj yeem loj hlob kom siab li 80 feet thiab dav li 40 feet.
Yuav ua li cas koj qhia tau ib tug ntoo thuv dawb?
Pine dawb yog ib qho yooj yim los txheeb xyuas. Nws nplooj los yog koob tshwm sim nyob rau hauv tej pob los yog fascicles ntawm tsib, 3-5 ntiv tes ntev, bluish ntsuab, nrog zoo. dawb kab los yog stomata. Lub khob hliav qab yog 3-6 ntiv tes ntev, maj mam tapering, nrog lub khob hliav qab nplais tsis muaj prickles thiab lub teeb tan mus rau xim dawb nyob rau sab ntug ntawm cov nplai.
Pom zoo:
Vim li cas kev taw qhia ntawm cov kab hlau nplaum yog los ntawm sab qaum teb mus rau sab qab teb?
Thaum nws los txog rau hlau nplaum, opposites nyiam. Qhov tseeb no txhais tau hais tias sab qaum teb kawg ntawm cov hlau nplaum nyob rau hauv ib lub compass yog attracted rau sab qab teb magnetic ncej, uas nyob ze rau thaj tsam qaum teb ncej. Cov kab hlau nplaum sab nraud ntawm cov hlau nplaum ruaj khov ib txwm khiav ntawm sab qaum teb sib nqus ncej mus rau sab qab teb magnetic ncej
Puas yog tsob ntoo ntoo yog tsob ntoo ntoo?
Txawm hais tias ob qho tib si fir thiab ntoo thuv yog conifers, bearing cones, thiab cov tswv cuab ntawm tib cov nroj tsuag tsev neeg, Pinaceae, lawv cov nroj tsuag npe txawv. Fir ntoo yog cov tswv cuab ntawm genus Abies; whereas ntoo thuv belongs rau Pinus
Ib tsob ntoo liab sab hnub tuaj zoo li cas?
Nta scale-zoo li evergreen nplooj compacted los ua rounded los yog 4-sided branchlets. Ua cov txiv hmab txiv ntoo sib npaug uas yog grey lossis xiav-ntsuab hauv xim thiab txog ¼' hauv txoj kab uas hla. Cov txiv hmab txiv ntoo no zoo ib yam li cov txiv hmab txiv ntoo tab sis qhov tseeb yog lub khob hliav qab ua los ntawm fused cone nplai. Txhim kho cov hauv paus hniav tob
Vim li cas nws thiaj li hais tias lub Orthocenter ntawm daim duab peb sab obtuse yuav tsum nyob rau sab nraud ntawm daim duab peb sab?
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Dab tsi yog kev sib raug zoo ntawm sab nrauv thiab sab hauv lub kaum sab xis ntawm daim duab peb sab?
Cov kaum sab hauv yog hu ua Sab hauv cov ces kaum. Cov lej ntawm cov kaum sab hauv ntawm daim duab peb sab yog ib txwm 180 degrees. Lub kaum sab nrauv yog lub kaum sab xis ntawm ib sab ntawm ib qho duab, thiab ib txoj kab txuas ntxiv los ntawm sab tom ntej. Qhov sib npaug ntawm lub kaum sab nrauv thiab nws lub kaum sab hauv uas nyob ib sab kuj yog 180 degrees