Tsis muaj leej twg tuaj yeem hais meej tias muaj pes tsawg hom ntoo deciduous muaj thoob plaws ntiaj teb: nyob rau sab qaum teb hemisphere ib leeg muaj ntau pua tus sib txawv. Qhov kev sib txawv loj tshaj plaws yog pom nyob rau hauv hav zoov kub thiab subtropical rainforests, qhov twg ntau hom ntoo tseem tos kom pom.
tsob ntoo deciduous li cas?
Cov ntoo txiav tawm yog cov nroj tsuag uas muaj ntau tshaj 60 tsev neeg, nplooj dav thiab ntau yam txiv hmab txiv ntoo. Lawv tuaj yeem yog deciduous lossis evergreen thiab Bloom feem ntau nyob rau lub caij nplooj ntoo hlav. Kev loj hlob qhov siab sib txawv heev, thiab lawv lub neej ntev li ntawm 120 xyoo mus rau ntau txhiab xyoo.
Qhov tseem ceeb tshaj plaws hauv luv luv
- Botanical faib: angiosperms
- Tsev neeg: tshaj 60 sib txawv
- Nov: ob lub caij ntuj sov thiab evergreen, sib txawv heev
- Paj: tsis sib deev los yog bisexual, pollination los ntawm cua los yog kab
- Lub sijhawm paj: feem ntau yog caij nplooj ntoos hlav thaum lub Plaub Hlis thiab Lub Rau Hli
- Fruits: ob tus neeg thiab sau txiv hmab txiv ntoo nrog rau cov txiv hmab txiv ntoo ya
- Kev loj hlob tus cwj pwm: ib leeg lossis ntau lub stemmed, nrog lub cev luv lossis ntev
- Loj hlob qhov siab: me me deciduous ntoo ntawm yim mus rau kaum meters, ntau German hav zoov ntoo nyob ib ncig ntawm 50 meters, American ntug dej hiav txwv redwood mus txog 110 meters
- Lifespan: sib txawv heev, birch thiab tshauv ntoo tsuas yog nyob ib ncig ntawm 120 xyoo, muaj ntau yam hav zoov ntoo ntau pua mus txog 1000 xyoo, ntug dej hiav txwv redwood ob peb txhiab xyoo
- Kev tshwm sim thiab kev faib tawm: Cov ntoo deciduous loj hlob yuav luag txhua qhov chaw, tshwj tsis yog Antarctica, Arctic, qhuav suab puam
Dab tsi qhov txawv ntawm tsob ntoo deciduous los ntawm conifer?
Qhov sib txawv tshaj plaws ntawm cov ntoo deciduous thiab coniferous yog cov duab ntawm lawv cov nplooj: conifers tsim koob-zoo li nplooj nplooj, thaum nplooj ntawm cov ntoo deciduous yog ntau los yog tsawg dua dav thiab muaj cov leeg khiav los ntawm lawv. Txawm li cas los xij, tsis muaj qhov sib txawv ntawm cov ntoo deciduous deciduous thiab evergreen conifers, vim tias tseem muaj cov ntoo ntsuab ntsuab thiab koob-txiav conifers. Hloov chaw, ob pawg tuaj yeem muab faib los ntawm cov duab thiab hom ntawm lawv cov txiv hmab txiv ntoo, txij li cov noob ntawm cov ntoo deciduous yeej ib txwm nyob rau hauv ib lub txiv hmab txiv ntoo. Vim li no, tsob ntoo deciduous raug cais raws li angiosperms, thaum conifers raug cais raws li gymnosperms. Los ntawm txoj kev, conifers yog cov laus dua nyob rau hauv cov nqe lus ntawm evolutionary keeb kwm: lawv tau nyob ib ncig ntawm txij thaum kawg ntawm lub thee hnub nyoog. Cov ntoo deciduous, ntawm qhov tod tes, tsuas yog tshwm sim txog ib puas lab xyoo tom qab.
Cov ntoo twg deciduous yog deciduous thiab twg evergreen?
Summer zaub, i.e. H. tsob ntoo deciduous:
- Maple (Acer)
- Birch (Betula)
- Beech (Fagus)
- Hornbeam (Carpinus)
- Oak (Quercus)
- Alder (Alnus)
- Ash (Fraxinus)
- Whiteberries xws li spar thiab roob tshauv (Sorbus)
- Poplar (Pobulus)
- Ntsuab Chestnut (Aesculus)
- Elm (Ulmus)
- Willow (Salix)
- Linde (Tilia)
- Txiv hmab txiv ntoo (Malus, Prunus thiab lwm yam)
Evergreen, ib txwm deciduous ntoo (i.e. tsis deciduous)
- European holly (Ilex aquifolium)
- Common boxwood (Buxus sempervirens)
- True laurel (Laurus nobilis)
Tip
ntoo xibtes tsis suav tias yog ntoo vim lawv lub cev tsis loj hlob.
