2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
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.
Pom zoo:
Puas yog cov dab dab dab dab dab dab dab dab dab dab dab dab?
Myth: Ib tug dab tshos tsis yog neeg ncaj ncees yog tiasnws haum yog. Fact: Tu siab, qhov no yog ib lo lus tsis tseeb uas tau raug perpetuated los ntawm aversive trainers. Txawm hais tias haum rau lub caj dab kom zoo khawb rau hauv cov tawv nqaij rhiab nyob ib ncig ntawm lub caj dab, uas ua rau muaj kev puas tsuaj loj rau cov thyroid, esophagus, thiab trachea.
Nyob hauv thaj chaw escarpment yog dab tsi?
Escarpment feem ntau yog hais txog hauv qab ntawm pob tsuas lossis txoj kab nqes. (Scarp hais txog lub pob tsuas nws tus kheej.) … Escarpments yog tsim los ntawm ib qho ntawm ob txheej txheem: yaig thiab faulting. Erosion tsim ib qho escarpment los ntawm hnav cov pob zeb los ntawm cua los yog dej.
Kuv yuav tsum siv thaj chaw lossis thaj chaw?
Chaw yog av thiab vaj tse ua ke suav tias yog vaj tse. … Nco ntsoov tias ib lub tsev lossis ib qho ntawm lwm yam khoom yog "chaw", tsis yog " premise", txawm hais tias lo lus "chaw" yog ntau ntau hauv daim ntawv;
Dab tsi yog qhov khoom siv prism hauv thaj chaw?
Accretionary prisms yog mob siab rau deforming ua melange, uas yog lub cev ntawm lub pob zeb uas pom tau los ntawm qhov tsis muaj txaj tas mus li thiab suav nrog cov pob zeb ntawm txhua qhov ntau thiab tsawg (txog Ntau tshaj li ib mais hla) muaj nyob rau hauv cov nplua-grained, deformed matrix.
Dab tsi yog gentrification hauv ap tib neeg thaj chaw?
Lo lus "gentrification" yog siv ncaj ncees nyob rau hauv cov lus American thaj chaw tam sim no. Nws feem ntau yog hais txog txheej txheem los ntawm lub nroog lossis suburban cheeb tsam hloov pauv los ntawm cov neeg nyob hauv cov neeg tau nyiaj tsawg feem ntau mus rau cov tsev neeg nruab nrab.
