Chernozem A Russian lo lus rau qhov tsaus ntuj, fertile av, feem ntau txuam nrog nyom. Chernozems tau tsim ib txwm nyob hauv thaj av steppe cheeb tsam, nyob ib ncig ntawm 30-40⁰ North, nyob rau yav qab teb Russia.
chernozem txhais li cas hauv thaj chaw?
Chernozems (los ntawm cov lus Lavxias rau "dub ntiaj teb") yog cov av nplua nuj humus-nplua nuj cov av siv dav rau kev cog qoob loo lossis rau kev yug tsiaj. Lawv pom nyob rau hauv nruab nrab latitudes ntawm ob hemispheres, nyob rau hauv ib cheeb tsam uas feem ntau hu ua prairie nyob rau hauv North America, pampa nyob rau hauv Argentina, thiab steppe nyob rau hauv Asia los yog nyob rau hauv sab hnub tuaj Europe.
Puas yog chernozem thiab av dub tib yam?
Raws li peb paub tias chernozem yog ib hom av fertile dub ces zoo li av dub. Nws kuj tseem muaj cov txiv qaub, hlau, magnesium thiab feem ntau tsawg ntawm phosphorus, nitrogen thiab organic teeb meem.
Vim li cas chernozem thiaj tseem ceeb?
Chernozem yog cov av fertile heev uas ua qoob loo siab thiab muaj cov kab mob zoo heev rau kev tsim qoob loo, tshwj xeeb tshaj yog cereals thiab oilseeds. Nws yog nplua nuj nyob rau hauv phosphoric acids, phosphorus thiab ammonia.
Dab tsi yog qhov txawv ntawm permafrost thiab chernozem?
Raws li lub npe qhov txawv ntawm chernozem thiab permafrost
yog tias chernozem yog cov av fertile dub uas muaj feem pua ntawm humus(3% txog 15%) thiab cov feem pua ntawm phosphoric acids, phosphorus thiabammonia thaum permafrost yog cov av khov mus tas li, lossis ib txheej tshwj xeeb ntawm no.
