Puas yog tsob ntoo deciduous puas suav tias yog hom pioneer?

Cov txheej txheem:

Puas yog tsob ntoo deciduous puas suav tias yog hom pioneer?
Puas yog tsob ntoo deciduous puas suav tias yog hom pioneer?
Anonim

Birch yog tsob ntoo deciduous uas belongs rau tsev neeg Betulaceae. … Birch yog lub npe hu ua pioneer hom vim nws yooj yim populates tej vaj tse puas los ntawm hluav taws. Cov nroj tsuag no tsuas yog cog qoob loo vim nws cov morphology ornamental thiab cov ntoo zoo.

tsob ntoo twg yog hom pioneer?

Nceev xws li alders, poplars, birches thiab willows yog dubbed "pioneer hom" hauv hav zoov. Lawv khwv tau lub npe menyuam yaus rau feem ntau yog thawj tsob ntoo ua kom thaj chaw cuam tshuam los yog puas los ntawm av nkos, hluav taws kub, dej nyab lossis kev txiav kom meej. Pioneer hom loj hlob sai thiab tsim cov canopies tshiab sai dua li cov nroj tsuag sib tw.

4 yam piv txwv ntawm pioneer hom yog dab tsi?

Plankons, fungi, kab mob, lichens thiab lwm yam. yog hom pioneer ntawm ecological succession.

Ib yam piv txwv ntawm hom pioneer yog dab tsi?

Fungi thiab lichen yog hom pioneer tshaj plaws nyob rau hauv thawj qhov kev vam meej vim tias lawv muaj peev xwm zom cov ntxhia hauv av los tsim cov av thiab tsim cov organic teeb meem. Thaum cov pioneer hom colonize cheeb tsam thiab pib tsim av, lwm hom - zoo li nyom - pib txav mus.

Yam twg tsis suav tias yog hom pioneer?

Lawv feem ntau yog cov nroj tsuag tawv, algae lossis moss uas tuaj yeem tiv taus ib puag ncig tsis zoo. Lwm yam kab mob, zoo li tsiaj, tsis suav tias yog hom pioneer vim lawv feem ntautshwm sim tom qab thawj hom pioneer tau nyob.

Pom zoo:

Nthuav cov khoom
Thaum twg tus menyuam ya mus?
Nyeem ntxiv

Thaum twg tus menyuam ya mus?

Fledglings feem ntau pib sim ya thaum cov noog muaj kwv yees li ob lub lis piam, thiab txawm tias lawv tau pib tawm hauv lub zes, lawv tsis nyob ntawm lawv tus kheej, raws li cov Massachusetts Audubon Society. Cov niam txiv feem ntau nyob ze, saib xyuas lawv cov xeeb ntxwv thiab tseem muab zaub mov.

Ntau npaum li cas 99 chinning osrs?
Nyeem ntxiv

Ntau npaum li cas 99 chinning osrs?

Feem ntau, rau 99 ntau yam, koj xav tias yuav siv sijhawm 40+ hnub kev cob qhia siv hlau lossis hlau riam phom. Tab sis kuj ceeb tias, txoj kev no raug nqi txog 30M-55Mnrog rune xub lossis mithril ntuav riam. Ntxiv rau, koj tuaj yeem ua tiav 60-99 ntau yam hauv tsawg li 15 hnub.

Dab tsi yog qhov txawv ntawm lub tshuab hluav taws xob thiab lub tshuab hluav taws xob?
Nyeem ntxiv

Dab tsi yog qhov txawv ntawm lub tshuab hluav taws xob thiab lub tshuab hluav taws xob?

Gramophone: Txhua lub suab kaw suab, lossis cov cuab yeej ua si yav dhau los-cov suab kaw, tshwj xeeb tshaj yog tias nws siv lub tiaj tiaj tiaj. Phonograph: Txhua lub suab kaw suab, lossis cov cuab yeej siv rau kev ua si cov suab uas tau kaw dhau los, tshwj xeeb tshaj yog tias nws siv lub tog raj kheej tig.