Hauv ntiaj teb cov nroj tsuag, zoo li nyob hauv lub ntiaj teb cov neeg, muaj cov nrawm dua thiab loj tshaj plaws. Ntawm cov ntoo uas muaj sia nyob ntev dua li tib neeg, kev loj hlob qee zaum sau tseg ntawm lub ntiaj teb.
Khoom Khoom Mos
Yog tias peb piv cov hom tsiaj deciduous thiab coniferous, ces cov neeg sawv cev ntawm hom tsiaj deciduous hlob sai. Poplars tuaj yeem hu ua cov neeg tuav tseg ntawm txhua tsob ntoo raws li kev loj hlob, uas, nyob ntawm hom, tuaj yeem nce siab txog 2 meters hauv ib xyoos. Tsuas yog willow, eucalyptus thiab acacia tuaj yeem khav tau ntawm lub nrawm ntawd.
Kev nrawm nrawm nrawm tuaj yeem hu ua Toropogritsky's poplar artificially bred hauv Ukraine, uas muaj peev xwm loj hlob mus txog 4 meters ib xyoos ib zaug. Tsis tas li ntawd, nws nyob twj ywm txias dhau qhov siab ntawm 40 metres thiab yog qhov siab tshaj ntawm cov ntoo ceev ceev. Nov yog ntawv pov thawj ntawm txhua tsob ntoo. Cov hom no tau faib rau ntau lub hauv paus tsev kawm ntawv hauv cheeb tsam Kherson.
Conifers
Txawm hais tias cov ntoo uas tau txiav ntoo loj hlob sai dua li cov conifers, nws tsim nyog sau cov hom no ua kev sib zog nrog nws cov neeg sib tw tawv ntoo. Kev loj hlob sai tshaj plaws ntawm tsob ntoo coniferous yog larch, uas tuaj yeem loj hlob mus txog 1 meter ib xyoos. Xav tias qhov kev loj hlob zoo yog pom tsuas yog nyob rau lub caij nplooj ntoo hlav lig thiab lub caij ntuj sov ntxov, tom qab ntawd txhua hnub tsob ntoo yuav loj hlob los ntawm 2.3 cm. meters.
Lub hom ntoo thuv tseem tseem niaj hnub sim ua kom ntom ntov thiab. Nyob rau lub sijhawm ntawm kev loj hlob uas nquag, tsob ntoo no tseem tuaj yeem cog tau li ib metres hauv ib xyoos. Tus ntoo thuv pib loj hlob zuj zus tsuas yog tom qab muaj hnub nyoog 5 xyoos. Qhov siab uas tsob ntoo thuv tuaj yeem ncav cuag yog 35-40 meters. Qhov no yog qhov ntsuas zoo ntawm cov ntoo loj hlob sai.
Cov ntoo no yog qhov dav heev. Yog li larch loj hlob hauv cov cheeb tsam ntawm Siberia thiab Far East. Tag nrho cov hav zoov ntawm cov ntoo loj hlob muaj. Ntoo thuv hlob ntawm thaj chaw ntawm Scandinavian Peninsula thiab thoob plaws qhov chaw nruab nrab ntawm qhov chaw ntawm Eurasian sab av loj.
Hais txog lawv qhov dav, cov ntoo no tsis qis dua rau poplars thiab muaj siab rau acacia thiab eucalyptus. Tab sis tag nrho cov "kev yeej" no yog qhov tsis tau zoo rau ib tus neeg sawv cev ntawm cov tsev neeg cog, uas, txawm hais tias tsis yog ntoo, ze rau nws.
Cov ntaub ntawv tseem ceeb tshaj plaws ntawm tsob ntoo ntiaj teb
Cov ntaub ntawv sau no yog ncaj qha rau xyoob, uas tuaj yeem nce mus txog 1,25 metres ib hnub. Ntau tshaj ib tsob nroj tsis tuaj yeem piv nrog nws. Tsob ntoo-zoo li xyoob tuaj yeem loj tuaj txog 38 meters qhov loj me.
