txheej txheem. Hauv kev tshawb nrhiav kev hloov pauv, cov tub ntxhais kawm ncab ib txoj hlua hla hauv av, ceg txheem ntseeg txhua qhov kawg, thiab suav cov khoom muaj sia nyob hauv qab txoj hlua lossis hauv caj npab ntev ntawm nws. Hauv quadrat daim ntawv ntsuam xyuas, cov tub ntxhais kawm daim ntawv qhia ib square meter ntawm av thiab daim ntawv ntsuam xyuas cov khoom muaj sia nyob hauv lub square.
Koj siv kev hloov pauv li cas?
Nws tuaj yeem yooj yim li ib txoj hlua lossis hlua tso rau hauv ib txoj kab rau hauv av. Tus naj npawb ntawm cov kab mob ntawm txhua hom nyob rau hauv ib qho kev hloov pauv tuaj yeem pom thiab sau tseg ntawm lub sijhawm tsis tu ncua. Kev hloov pauv feem ntau yog siv los tshawb xyuas qhov hloov pauv hloov pauv hauv thaj chawes tsis yog txhawm rau kwv yees tus lej ntawm cov kab mob hauv nws.
Yuav ua li cas koj tso koj cov plaub fab raws li txoj kab hla?
Piv txwv li, ib txwm tso lub quadrat nyob rau ntawm qhov chaw hloov pauv, uas yooj yim rau nco qab txawm hais tias daim kab xev transect yuav tsis pom qee yam kab mob, lossis ib txwm tso (piv txwv li hauv qab sab laug) ces kaum ntawm lub quadrat hla lub transect point.
Qhov twg yuav tsum muab quadrat tso rau ntawm txoj kab hla thiab yog vim li cas?
Ib lub quadrat tau muab tso rau ntawm ib ntus ntawm ib lub 'meter' (lossis ob peb metres) raws qhov kev hloov pauv. Ib qho kev hloov maj mam hloov hauv kev faib cov tsiaj thoob plaws ib thaj chaw hu ua zonation. Nws tuaj yeem tshwm sim vim qhov kev hloov pauv hloov zuj zus hauv cov tshuaj abiotic.
Koj siv quadrat thiab transect li cas?
txheej txheem. Hauv kev tshawb nrhiav kev hloov pauv, cov tub ntxhais kawm ncab ib txoj hlua hla hauv av, ceg txheem ntseeg txhua qhov kawg, thiab suav cov khoom muaj sia nyob hauv qab txoj hlua lossis hauv caj npab ntev ntawm nws. Hauv quadrat daim ntawv ntsuam xyuas, cov tub ntxhais kawm daim ntawv qhia ib square meter ntawm av thiab daim ntawv ntsuam xyuas cov khoom muaj sia nyob hauv lub square.
