Pob ntoo puas tua nws?

Cov txheej txheem:

Pob ntoo puas tua nws?
Pob ntoo puas tua nws?
Anonim

Ib yam yooj yim, ring barking tua ntoo. Qhov seem saum lub ringbark tuag yog tias tsob ntoo tsis zoo los ntawm qhov txhab. Nws kuj cuam tshuam qhov kev tiv thaiv ntawm tsob ntoo thiab muab tso rau hauv kev ntxhov siab. Ntxiv mus, phloem cuam tshuam kuj hloov cov zaub mov thiab cov khoom noj khoom haus ntawm tsob ntoo.

Yuav txiav ib lub nplhaib ncig tsob ntoo tua nws?

Nws hu ua Girdling (tseem hu ua nplhaib barking lossis nplhaib-barking). Los yog, cov txheej txheem uas cuam tshuam nrog kev tshem tawm / tev ntawm ib lub nplhaib ntawm cov tawv ntoo ntawm tsob ntoo, thiab phloem txheej (Zoo li pom hauv daim duab saum toj no). Yog lawm, qhov no tua ib tsob ntoo. Thiab nws yog kev tuag qeeb.

Ntxhais hluas yuav tua tsob ntoo ntev npaum li cas?

Ua siab ntev thaum nrhiav cov txiaj ntsig, vim tias tsob ntoo yuav pom zoo kom txog thaum xav tau cov as-ham los ntawm cov hauv paus hniav zoo rau lub caij nplooj ntoo hlav tom ntej. Qee lub sij hawm nws yuav siv tau ob xyoos rau tsob ntoo tuag.

Yuav ua li cas thaum koj hu nkauj?

Girdling, tseem hu ua nplhaib-barking, yog kev tshem tawm tag nrho cov tawv ntoo(muaj cov cork cambium lossis "phellogen", phloem, cambium thiab qee zaum mus rau hauv xylem) los ntawm ib ncig ntawm tag nrho cov ncig ntawm ob ceg los yog lub cev ntawm ib tsob ntoo ntoo. Girdling ua rau tuag ntawm thaj chaw saum lub girdle dhau sijhawm.

tsob ntoo puas muaj sia nyob girdling?

Txawm hais tias tsob ntoo zoo kawg nkaus hauv lawv txoj kev ciaj sia, lawv tsis tuaj yeem kov yeej feem ntau ntawmgirdling ntawm lawv tus kheej.

Pom zoo:

Nthuav cov khoom
Thaum twg peb lub pas dej tauv tsim?
Nyeem ntxiv

Thaum twg peb lub pas dej tauv tsim?

Peb lub Gorges Dam yog lub pas dej loj loj uas hla tus Dej Yangtze los ntawm lub nroog Sandouping, hauv Yiling District, Yichang, Hubei xeev, nruab nrab Tuam Tshoj, nqes ntawm peb Gorges. Peb Gorges Dam tau ua lub chaw nres tsheb loj tshaj plaws hauv ntiaj teb raws li kev teeb tsa muaj peev xwm txij li xyoo 2012.

Puas yog acetamide muaj ntxhiab tsw?
Nyeem ntxiv

Puas yog acetamide muaj ntxhiab tsw?

Cov tshuaj acetamide yog cov tshuaj acetic acid-derived uas tau txheeb pom tias yog tsw zoo li ammonia lossis vinegar. Nws tseem yuav cling rau qhov chaw uas musculus nyob rau hauv pw tsaug zog thiab yuav tau txais zaub mov scrounge. Vim li cas acetamide yaj hauv dej?

Kuv puas tau mob plawv?
Nyeem ntxiv

Kuv puas tau mob plawv?

Feem ntau, lawv tshwm sim los ntawm kev ntxhov siab thiab kev ntxhov siab, lossis vim tias koj tau muaj caffeine, nicotine, lossis cawv ntau dhau lawm. Lawv kuj tuaj yeem tshwm sim thaum koj cev xeeb tub. Muaj tsawg zaus, palpitations tuaj yeem yog ib qho cim ntawm lub plawv mob hnyav dua.