Video: Cov khoom siv organic nkag mus rau hauv av li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Topsoil muaj qhov loj tshaj concentration ntawm organic teeb meem thiab av lub neej, uas ua rau nws nplua nuj nyob rau hauv cov as-ham xav tau los ntawm cov nroj tsuag lub neej kom vam meej. Cov cheeb tsam uas muaj kev hloov pauv siab ntawm cov khoom siv organic yuav muaj ib txheej tob ntawm topsoil. Cov khoom siv organic yog muab tso rau hauv av raws li tsob ntoo thiab tsiaj teeb meem decomposes.
Ib yam li ntawd, tib neeg nug, organic teeb meem pab av li cas?
Organic teeb meem suav nrog tej nroj tsuag lossis tsiaj txhu khoom uas rov qab mus rau lub av thiab mus los ntawm cov txheej txheem decomposition. Ntxiv nrog rau muab cov as-ham thiab chaw nyob rau cov kab mob nyob hauv lub av , organic teeb meem kuj khi av particles rau hauv aggregates thiab txhim kho cov dej tuav peev xwm ntawm av.
Kuj Paub, cov khoom siv organic nkag mus rau hauv av hauv hlwb li cas? Los ntawm kev lwj ntawm cov ntawv me me hauv lub neej ( organic teeb meem ). Piv txwv li, diatoms yog microscopic ib leeg-celled algae. Yeej, qhov no yog ib organic nplua nuj " av " (& yog siv ua lag luam ua chiv & ua tshuaj tua kab - aka- Niam Nature cov khoom w / tsis muaj kev puas tsuaj rau ib puag ncig, tsiaj lossis rau tib neeg).
Ntxiv mus, qhov twg cov khoom siv organic hauv av tuaj?
Feem ntau av organic teeb meem originates los ntawm cov ntaub so ntswg. Cov nroj tsuag residues muaj 60-90 feem pua ntawm cov dej noo.
Dab tsi ntawm cov organic teeb meem pom nyob rau hauv av?
Av organic teeb meem (SOM) yog organic feem ntawm av , muaj peb yam tseem ceeb xws li cov nroj tsuag me me (tshiab) thiab me me nyob av cov kab mob, decomposing (active) organic teeb meem , thiab ruaj khov organic teeb meem (humus).
Pom zoo:
Cov khoom twg yog cov piv txwv ntawm cov khoom siv tshuaj xyuas txhua yam uas siv?
Piv txwv ntawm cov khoom siv tshuaj muaj xws li flammability, toxicity, acidity, reactivity (ntau hom), thiab kub ntawm combustion. Hlau, piv txwv li, ua ke nrog oxygen nyob rau hauv lub xub ntiag ntawm dej los ua xeb; chromium tsis oxidize (Daim duab 2)
Vim li cas lub caij nplooj ntoos hlav ncab hauv koj qhov kev sim thaum cov khoom txav mus rau hauv txoj kev ncig?
Feem ntau, cov khoom txav mus rau hauv txoj kev ncig vim lub caij nplooj ntoos hlav yog lub zog ntawm cov khoom mus rau qhov chaw ntawm txoj kev ncig. Muaj kev tsis sib haum xeeb ntawm lub zog no thiab cov khoom inertia. Yog li ntawd lub caij nplooj ntoos hlav stretches tawm vim hais tias ntawm cov khoom tangential ceev thiab inertia?
Cov tshuaj tiv thaiv zoo li cas thaum cov tshuaj nkag mus rau hauv cov hlab ntsha?
Cov tshuaj tiv thaiv 'systemic' tshwm sim thaum cov tshuaj nkag mus rau hauv cov hlab ntsha los ntawm daim tawv nqaij, qhov muag, qhov ncauj, lossis lub ntsws
Yuav ua li cas cov khoom siv caj ces hauv txhua lub xov tooj tshiab tsim los ntawm kev faib tawm ntawm tes sib piv nrog cov khoom siv caj ces hauv lub xov tooj qub?
Mitosis tshwm sim nyob rau hauv ob lub nuclei uas zoo tib yam rau thawj nucleus. Yog li, ob lub hlwb tshiab tsim tom qab kev faib tawm ntawm tes muaj tib yam khoom siv caj ces. Thaum lub sij hawm mitosis, chromosomes condense los ntawm chromatin. Thaum saib nrog lub microscope, chromosomes pom nyob rau hauv lub nucleus
Dab tsi yog qhov txawv ntawm cov khoom siv organic thiab cov khoom siv organic?
Dab tsi yog qhov txawv ntawm cov khoom siv organic thiab organic teeb meem? Organic khoom yog txhua yam uas tseem muaj sia nyob thiab tam sim no nyob rau hauv lossis hauv av. Rau nws los ua cov organic teeb meem, nws yuav tsum tau decomposed rau hauv humus. Humus yog cov khoom siv organic uas tau hloov dua siab tshiab los ntawm cov kab mob mus rau lub xeev tsis muaj zog