Cov txheej txheem:

Dab tsi yog 4 pawg ntawm kev ntxhov siab ib puag ncig?
Dab tsi yog 4 pawg ntawm kev ntxhov siab ib puag ncig?

Video: Dab tsi yog 4 pawg ntawm kev ntxhov siab ib puag ncig?

Video: Dab tsi yog 4 pawg ntawm kev ntxhov siab ib puag ncig?
Video: zoo siab tau ntsib Cov phooj ywg ib txwm tsi tau sib pom 2024, Lub Xya hli ntuj
Anonim

Ib puag ncig kev ntxhov siab feem ntau yog txiav txim siab poob rau hauv ib qho ntawm plaub txawv cov chav kawm : xwm txheej cataclysmic, teeb meem lub neej nyuaj siab, teeb meem niaj hnub, thiab ib puag ncig cov nyom (Evans thiab Cohen 1987). Cov xwm txheej Cataclysmic suav nrog kev puas tsuaj sai sai uas cuam tshuam rau ntau tus tib neeg tib lub sijhawm.

Tib neeg kuj nug, 5 hom kev ntxhov siab ib puag ncig yog dab tsi?

Cov pab pawg tseem ceeb ntawm kev ntxhov siab ib puag ncig yog kev ntxhov siab hauv huab cua, tshuaj lom neeg muaj zog, hluav taws kub hnyiab, ua rau lub cev muaj zog, thiab ua rau muaj kev nyuaj siab ntau ntxiv

  • Climatic Stressors.
  • Tshuaj Stressors.
  • Hluav Taws.
  • Lub Cev Muaj Zog.
  • Biological Stressors.

Qhov thib ob, yam xwm txheej ib puag ncig yog dab tsi? Ib ib puag ncig yam , kev nyab xeeb yam lub eco yam yog ib yam yam , abiotic lossis biotic, uas cuam tshuam cov kab mob muaj sia. Abiotic yam suav nrog qhov ntsuas kub ib puag ncig, qhov nyiaj ntawm tshav ntuj, thiab pH ntawm cov av hauv av uas muaj kab mob nyob.

Ntxiv mus, dab tsi yog qee qhov piv txwv ntawm ib puag ncig ib puag ncig uas ua rau muaj kev nyuab siab ntev?

Stressors yog ib puag ncig yam uas ua rau muaj kev ntxhov siab . Lawv suav nrog biotic yam xws li muaj zaub mov noj, cov muaj cov tsiaj txhu, kis kab mob nrog cov kab mob pathogenic lossis cuam tshuam nrog cov yam ntxwv tshwj xeeb, nrog rau abiotic yam xws li kub, dej muaj thiab tshuaj lom.

Koj tswj hwm kev ntxhov siab ib puag ncig li cas?

Thawj txoj hauv kev tswj hwm ib puag ncig kev nyuaj siab los ntawm kev qhia ua pa thiab tawm dag zog. Hauv qhov kub thiab txias, hnav khaub ncaws rau cov khoom tuaj yeem ua tau tswj qhov kub thiab txias kev nyuaj siab . Rau suab nrov ntsig txog kev nyuaj siab , txo qis kev cuam tshuam rau lub suab nrov (piv txwv li cov cuab yeej txo suab nrov) tuaj yeem tswj suab nrov kev nyuaj siab.

Pom zoo: