Lub elm tsis yog neeg txawv ntawm cov ntoo deciduous. Tej zaum koj twb pom tsob ntoo deciduous taug kev hauv hav zoov. Lub elm tsob ntoo yog ib qho yooj yim kom paub los ntawm cov duab ntawm nplooj. Tej zaum koj muaj ib lub rooj tog ua los ntawm elm ntoo. Qhov no paub txog nws qhov zoo. Tab sis koj puas paub tias tsuas yog peb ntawm ntau hom sib txawv tshwm sim ntawm no hauv Tebchaws Europe? Cov teb chaws Es Xias muaj ntau hom ntau haiv neeg. Hmoov tsis zoo, elm bark beetle tau ua rau muaj kev phom sij rau pej xeem txij li xyoo 1920, xyoo nws tau pom thawj zaug. Nws coj nyob rau hauv ib tug hem fungus. Cov profile hauv qab no muab koj cov ntsiab lus meej ntawm cov no thiab lwm yam tseeb thiab cov khoom ntawm elm. Cov nroj tsuag tshwm sim ob qho tib si li ib tsob ntoo thiab raws li tsob ntoo. Qhov profile no kho cov elm li tsob ntoo.
Dab tsi yog cov khoom ntawm elm li tsob ntoo?
Txiv kab ntxwv yog tsob ntoo deciduous uas muaj hnub nyoog txog 400 xyoo thiab qhov siab ntawm 30-40 meters. Cov yam ntxwv zoo yog asymmetrical, jagged nplooj thiab inconspicuous paj. Peb hom yog sawv cev nyob rau hauv cov teb chaws Europe: teb elm, dawb elm thiab wych elm. Cov ntoo yog siv los ua rooj tog.
General
- German lub npe: Elm
- Latin lub npe: Ulmus
- Tsev tsev neeg: Deciduous tree
- Type: ncig 30 daim
- hnub nyoog siab tshaj: mus txog 400 xyoo
- txoj kev, deciduous
Optical nta
Growth
qhov siab tshaj plaws kev loj hlob: 30-40 meters
Root formation
- Tabsis
- Nrog lub hnub nyoog zuj zus, lub plawv hauv paus daim ntawv
lees
- asymmetric
- dabneeg
- stemmed
- ntsuab, qe zoo li tus
- Danger of tsis meej pem nrog hazel
- cov nplooj hluas yog noj tau
Bloom
- Plaub lub sij hawm: Lub Ob Hlis mus txog Plaub Hlis
- Hairy
- Tsis paub
Fruits
- txiv ntseej
- txog 2.5 cm siab
- tsuas yog cog rau lub sijhawm luv
- ovoid, roundish
- hu ua Samara
Ntoo
- cork tis bark tsis tshua muaj daim ntawv
- tsis muaj pos los yog txhav
- yellowish to reddish
- poig
Occurrence
Dissemination
- tsuas yog nyob rau sab qaum teb hemisphere
- ob feem peb ntawm tag nrho cov hom yog haiv neeg Asia
- Tsuas yog peb hom sawv cev thoob teb chaws Europe: teb elm, dawb elm, roob elm
Qhov chaw nyiam
- hauv hav zoov
- nyob rau hauv nruab nrab tshav kub zones
Usage
- cov ntoo khov kho ua rooj tog
- Fruits yog edible
- qee qhov chaw ntawm cov nroj tsuag yog siv nyob rau hauv tsoos suav tshuaj
Kab mob thiab kab tsuag
- Elm kab mob
- Elm bark beetle
- vim muaj kab mob fungal ntau zaus, cov laus elms tsawg heev
