Video: Puas yog bristlecone pines muaj twisted ceg?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ntsuab ntoo koob muab cov twisted ceg ib lub raj mis- txhuam hniav. Cov koob ntawm tsob ntoo nyob ib puag ncig ntawm ceg kom txog li ib ko taw ze ntawm qhov kawg ntawm tus ceg. Lub npe bristlecone ntoo thuv yog hais txog cov poj niam tsaus ntuj nti cones uas dais incurved prickles ntawm lawv nto.
Ntawm no, koj pom bristlecone pines nyob qhov twg?
Hom thiab ntau yam Great Basin bristlecone ntoo thuv (Pinus longaeva) hauv Utah, Nevada thiab sab hnub tuaj California. Hom nto moo tshaj plaws nyob ntev; feem ntau lub sij hawm bristlecone ntoo thuv hais txog tsob ntoo no tshwj xeeb. Rocky Roob bristlecone ntoo thuv (Pinus aristata) hauv Colorado, New Mexico thiab Arizona.
Ib tug kuj yuav nug, ua li cas lub bristlecone Pine reproduce? Ob leeg txiv neej thiab poj niam cones muaj nyob rau tib tsob ntoo. Qhia ntawm no yog cov txiv neej xeb-xim txiv kab ntxwv uas nyob rau nruab nrab lub caij ntuj sov tso cov huab cua daj paj ntoos rau fertilize poj niam cones. Tsis zoo li feem ntau cov tswv cuab ntawm tsev neeg conifer, poj niam bristlecone ntoo thuv cone siv sijhawm ob xyoos los tsim thiab tsim cov noob siv tau.
Yog li ntawd, bristlecone pines loj hlob sai npaum li cas?
Lawv loj hlob nyob rau hauv pob zeb, qhov chaw qhuav qhov chaw yooj yim ua tsis tso cai ceev kev loj hlob. Thiab, qhov tseeb, lawv loj hlob qeeb heev. Ib txwm muaj 14 xyoos bristlecone ntoo thuv tsob ntoo loj hlob nyob rau hauv qus tsuas yog hais txog 4 ko taw (1.2 m.) siab.
Puas muaj bristlecone pines hauv Utah?
Bristlecone Pines (Pinus longaeva thiab Pinus aristata) yog cov muaj sia nyob hauv ntiaj teb. Bristlecones tsuas yog pom nyob rau hauv rau lub xeev, Utah suav nrog. Tus ntoo uas hlob tshaj plaws yog hu ua "Methuselah" thiab muaj hnub nyoog 4,765 xyoo. tsob ntoo no muaj ze li ntawm 1,000 xyoo laus dua ib yam lwm yam bristlecone ciaj sia hnub no.
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