Video: Muaj pes tsawg tsob ntoo nyob hauv hav zoov?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Boreal Forests thiab huab cua: 3 Trillion Ntoo in World: News: Nature World News.
Kuj paub yog, muaj pes tsawg tsob ntoo nyob hauv hav zoov boreal?
Los piav txog nws, cia peb pib nrog lub ntoo uas ua rau hav zoov daim ntaub. Muaj txog 20 hom ntawm lawv, thiab feem ntau yog coniferous, uas txhais tau hais tias lawv tsim lawv cov noob hauv cones. Spruce, fir, ntoo thuv, thiab tamarack yog hom tseem ceeb nyob hauv Canadian boreal hav zoov.
Qhov thib ob, dab tsi ua rau hav zoov boreal? Los ntawm biological foundations, hav zoov boreal raug txhais ua hav zoov loj hlob nyob rau hauv high-latitude ib puag ncig qhov chaw txias txias tshwm sim rau 6 mus rau 8 lub hlis thiab nyob rau hauv cov ntoo muaj peev xwm ncav cuag qhov siab yam tsawg kawg nkaus ntawm 5 m thiab ib tug canopy cover ntawm 10%.
Tsis tas li ntawd, pes tsawg feem pua ntawm cov ntoo pom hauv taiga?
Cov neeg Lavxias taiga account rau 57 feem pua ntawm lub ntiaj teb conifer hav zoov thiab 23 feem pua ntawm tag nrho cov hav zoov ntawm lub ntiaj teb no.
Ntau npaum li cas ntawm lub ntiaj teb no boreal hav zoov?
30 feem pua
Pom zoo:
Muaj pes tsawg tsob ntoo nyob hauv hav zoov coniferous?
Cov ntoo coniferous hav zoov ntsuab uas tsis yog ntoo Mosses Mosses muaj ntau nyob hauv hav zoov; muaj ntau txog 25,000 hom. Lawv loj hlob nyob rau hauv av, tsob ntoo trunks, decaying cav, thiab pob zeb
Cov nroj tsuag zoo li cas hauv hav zoov hav zoov hav zoov?
Canopy txheej Nws muaj feem ntau ntawm cov ntoo loj tshaj plaws, feem ntau 30-45 m hauv qhov siab. Siab, dav-leaved evergreen ntoo yog cov tseem ceeb nroj tsuag. Qhov chaw ntom ntom ntawm biodiversity yog pom nyob rau hauv hav zoov canopy, raws li nws feem ntau txhawb ib tug nplua nuj flora ntawm epiphytes, xws li orchids, bromeliads, mosses thiab lichens
Muaj pes tsawg hom tsiaj nyob hauv hav zoov hav zoov?
50 lab hom sib txawv
Cov tsiaj twg nyob hauv hav zoov hav zoov hav zoov?
Ob hom hav zoov hav zoov hav zoov hav zoov muaj ntau hom tsiaj. Cov tsiaj hav zoov muaj xws li liab, parrots, tsiaj me thiab kab ntau. Drier hav zoov hav zoov hav zoov muaj cov tsiaj loj xws li Asian ntxhw, tsov, thiab rhinoceros nrog rau ntau cov noog thiab tsiaj me
Muaj pes tsawg tsob ntoo nyob hauv nruab nrab hav zoov?
Cov teeb meem tiv thaiv hluav taws kub ntxhov yog tias tsis tsuas yog cov nroj tsuag ntsuab hlawv xwb, hav zoov yog overstocked - 100 mus rau 200 tsob ntoo ib daim acre, qhov twg ib tug noj qab nyob zoo hav zoov muaj 40 mus rau 60 ntoo ib evkawj