Muaj pes tsawg tsob ntoo nyob hauv hav zoov?
Muaj pes tsawg tsob ntoo nyob hauv hav zoov?

Video: Muaj pes tsawg tsob ntoo nyob hauv hav zoov?

Video: Muaj pes tsawg tsob ntoo nyob hauv hav zoov?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
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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: