Yuav tua tsob ntoo puas yuav tua nws?

Cov txheej txheem:

Yuav tua tsob ntoo puas yuav tua nws?
Yuav tua tsob ntoo puas yuav tua nws?
Anonim

Ua tiav girdling (cov tawv ntoo tshem tawm ntawm ib pab pawg uas nyob ib puag ncig tsob ntoo) yeej yuav tua tsob ntoo. Yog vim li cas rau kev puas tsuaj los ntawm girdling yog hais tias phloem txheej ntawm cov ntaub so ntswg nyob rau hauv lub bark yog lub luag hauj lwm rau nqa cov zaub mov tsim nyob rau hauv cov nplooj los ntawm photosynthesis rau cov hauv paus hniav.

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 sijhawm ob xyoos rautsob ntoo tuag.

Yuav ua li cas rub tawm tsob ntoo?

Txiav ib tsob ntoo txheej txheej tawv tawv tshaj plaws nthuav tawm cov tawv ntoo thiab cov txheej cambium, ua rau tsob ntoo tsis muaj zog teb. Kev ua yuam kev lossis txhob txwm tshem tawm cov txheej txheej sab nrauv nres cov zaub mov tsis ntws, ua rau cov ntoo raug mob kom qhuav thiab lwj.

Yuav ua li cas cog tsob ntoo?

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.

Yuav ua li cas tsob ntoo tuag yog tias koj tshem nws cov tawv ntoo?

Ntxhais yog txheej txheem ntawm kev tshem cov tawv ntoo. Raws li peb twb tau hais tias girdling ua rau kev tshem tawm ntawm phloem, thiab kev tuag tshwm sim los ntawm qhov tsis muaj peev xwm ntawm qhovnplooj mus thauj cov suab thaj mus rau cov cag. … Kev tuag tshwm sim thaum cov hauv paus hniav tsis tuaj yeem tsim ATP thiab thauj cov as-ham nce mus rau hauv lub xylem.

Pom zoo: