Video: Qhov thib ob succession tshwm sim nyob qhov twg?
2024 Tus sau: Edward Hancock | [email protected]. Kawg hloov kho: 2023-12-16 01:32
Thaum xub thawj kev vam meej tshwm sim thaum cov pioneer hom nyob rau hauv ib tug tshiab tsim substrate tsis muaj nyob rau hauv cov av thiab biotic kab mob (xws li pob zeb tsim los ntawm lava ntws los yog cov cheeb tsam ntawm glacier retreat), Secondary succession tshwm sim ntawm lub substrate uas yav tas los txhawb cov nroj tsuag tab sis tau hloov los ntawm cov txheej txheem xws li
Kuj nug tias, qhov kev vam meej thib ob tshwm sim li cas?
Secondary succession tshwm sim nyob rau hauv cov cheeb tsam uas ib lub zej zog uas yav tas los tau raug tshem tawm; nws yog typified los ntawm me me-scale teeb meem uas ua tsis tshem tawm tag nrho lub neej thiab cov as-ham los ntawm ib puag ncig.
Tsis tas li ntawd, nws yuav siv sij hawm ntev npaum li cas rau qhov kev vam meej thib ob tshwm sim? Cov txheej txheem ntawm thawj kev vam meej ua tau coj pua, yog tsis txhiab, xyoo. Nyob rau hauv sib piv, cov txheej txheem ntawm theem nrab succession tuaj yeem rov tsim kho lub ecosystem qhov kawg ntawm cov zej zog hauv tsawg li 50 xyoo. Lub ecosystem tus tsiaj cov pej xeem kuj tsim sai dua thaum lub sij hawm theem nrab succession.
Qhov kev vam meej thawj thiab theem nrab zoo sib xws li cas?
Thawj qhov kev vam meej yog hom kev vam meej uas tshwm sim hauv thaj chaw tsis muaj sia; thaj chaw uas cov av tsis muaj peev xwm txhawb nqa lub neej raws li qhov tshwm sim xws li lava ntws thiab xuab zeb dunes ntawm lwm tus. Secondary succession tshwm sim los ntawm kev cuam tshuam loj xws li hluav taws kub hav zoov lossis dej nyab.
Dab tsi yog qhov tseeb ntawm kev ua tiav theem nrab?
Hauv ib theem nrab succession lub neej yog rov tsim dua tom qab lub tebchaws tau raug tshem tawm tag nrho cov ntaub ntawv ua neej dhau los lossis kev puas tsuaj tau tshwm sim yav dhau los uas tau rhuav tshem tag nrho cov kev ua neej nyob hauv thaj av ntawd. Yog li ntawd, kev tsim los yog tiam neeg ntawm lub neej nyob rau thaj av no dua yog hu ua theem nrab succession.
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