Larch yog cov ntoo ntau tshaj plaws tsis tsuas yog nyob hauv Russia, tab sis thoob plaws ntiaj teb. Larch hav zoov nyob ntau thaj chaw gigantic hauv Siberia thiab Far East. Qhov thib ob tshwm sim ntau tshaj plaws hauv lub tebchaws yog belongs rau tsob ntoo, uas loj hlob dhau ntawm Arctic Vajvoog.
Larch
Larch belongs rau cov chav kawm ntawm coniferous ntoo thiab tau muab faib ua ob peb hom sib txawv, sib koom ua ke los ntawm cov genus "Larch". Feem ntau cov ntoo ntawm cov ntoo hauv tebchaws Russia yog Siberian larch, uas loj hlob nyob rau sab hnub tuaj thiab sab qaum teb ntawm thaj chaw European nyob ntawm lub teb chaws, nyob rau sab hnub tuaj thiab Western Siberia, los ntawm tundra mus rau Altai roob. Nws loj hlob nyob hauv cov hav zoov coniferous, muaj lwm cov ntoo coniferous - Siberian cedar, ntoo thuv, spruce.
Qee lub sij hawm tsuas yog pom hav zoov hav zoov pom, qhov tsis muaj lwm hom.
Larch ntoo yog qhov ruaj heev, loj hlob mus txog 600 xyoo thiab muaj peev xim tiv thaiv ib puag ncig ib puag ncig. Lawv tsis ntshai txog te, yog li ntawd lawv loj hlob nyob rau sab qaum teb hauv lub tebchaws, lawv tsis ntshai haus luam yeeb, roj av, thiab huab cua ntshiab tsis tu ncua. Cov ntoo no tiv taus qhov xwm txheej zoo ntawm cov chaw loj hauv kev lag luam uas muaj cov pa phem ntau.
Qee tsob ntoo larch tuaj yeem loj hlob ntawm permafrost.
Siberian larch yog lub zog loj, siab thiab dav tsob ntoo nrog cov tawv ntoo dub thiab cov cones loj ncav cuag tsib centimeters ntev. Tsis tas li ntawd nyob hauv Lavxias, Daurian larch yog dav - me ntsis qis, me me, nrog cov nplaim taws thiab cov cones me me. Lub Daurian hom loj hlob nyob rau thaj chaw sab hnub tuaj ntawm Yenisei.
Larch ntoo yog txiaj ntsig rau nws lub zog, kav ntev, txiaj ntsig kev noj qab haus huv thiab nws cov ntxhiab tsw ntxhiab tsw ntxhiab. Nws ua kom sov so zoo, muaj cov khoom tua kab mob thiab tiv thaiv kev tiv thaiv. Txawm tias muaj txiav ntoo tsawg hauv Siberia, larch tsis cuam tshuam nrog kev rhuav tshem - nws yog ib qho ntawm cov tsiaj feem ntau ntawm lub neej nyob ntiaj teb.
Birch
Txawm hais tias qhov tseeb tias tsob ntoo tshaj plaws nyob rau hauv Russia yog larch, birch, uas tseem nyob hauv thaj chaw loj, tseem yog lub cim ntawm lub teb chaws. Birch hlob nyob rau yuav luag txhua lub ces kaum ntawm Russia, qee zaum nws hlob zoo nyob rau hauv cov chaw uas tsis muaj lwm yam ntoo. Cov genus no tau muab faib ua thaj tsam li ib puas hom, yuav luag txhua tus loj hlob ntawm thaj chaw hauv lub tebchaws.
Slender, yooj yim thiab tsob ntoo birch zoo nkauj heev, qee hom tsiaj nyob hauv thaj chaw permafrost thiab txawm deb dhau ntawm Arctic Circle. Nyob saum roob, lawv ua lub voj voog kawg ntawm cov ntoo. Lawv yog cov tsis muaj qhov kawg kiag li - lawv tuaj yeem tiv taus ib qho av ntawm ib qho av, lawv tuaj yeem tiv taus ib qho kev nyab xeeb twg, lawv feem ntau ntxoov ntxoo-zam, uas piav qhia txog qhov dav ntawm cov ntoo no. Cov ntoo Birch nyob tau tsawg dua li ntab ntoo - txog li 120 xyoo, thiab tsuas yog qee hom tsiaj tuaj yeem ncav cuag lub hnub nyoog 400 xyoo.
