Video: Thaum twg koj yuav siv lub transect?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kab pauv yog siv thaum koj xav qhia txog ib qho gradient lossis linear qauv raws li cov zej zog ntawm cov nroj tsuag thiab, lossis tsiaj hloov. Lawv muab txoj hauv kev zoo los ua kom pom tseeb qhov kev hloov pauv tshwm sim raws kab.
Ib yam li ntawd, thaum twg koj yuav siv txoj siv sia transect?
Kev siv txoj hlua khi yog siv hauv biology rau kwv yees kev faib cov kab mob hauv kev sib raug zoo rau ib qho chaw, xws li ntug hiav txwv dej los yog meadow. Nws sau tag nrho cov hom pom ntawm ob kab thiab deb npaum li cas lawv yog rau ib qho chaw lossis thaj chaw thiab muaj pes tsawg tus ntawm lawv nyob ntawd yog.
Qhov thib ob, txoj kev hloov pauv hloov pauv yog dab tsi? Kev tshawb fawb Cov txheej txheem : Qauv nrog Transects Cov pauv tsuas yog ib txoj kab uas spans gradient ntawm kev txaus siab, thiab ces koj nrhiav koj qauv cov phiaj xwm raws kab no (saib daim duab 1). Tom qab ntawd siv tus lej random los nrhiav tus qauv daim phiaj nrog txhua subdivision ntawm lub pauv (saib daim duab 2).
Ntawm no, vim li cas peb thiaj siv quadrats thiab transects?
Transects thiab quadrats yog ob lub cuab yeej ecological uas tso cai rau peb kom suav cov txheeb ze ntawm cov kab mob hauv ib cheeb tsam. Txhawm rau taug qab cov kev hloov pauv raws sijhawm, nws yog tseem ceeb kom muaj peev xwm txheeb xyuas qhov kev hloov pauv ntawm kev nplua nuj. A pauv kab yog tej kab, cim ntawm ib ntus, uas yog yooj yim rau siv hauv teb.
Koj siv transect hauv kab lus li cas?
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- Kuv tus ntxhais tsuas yog noj nws cov qhaub cij yog tias kuv hla nws thiab hlais tawm ntawm ntug.
- Yog tias peb hla dhau lub xwmfab, peb yuav mus txog lub tsev kawm ntawv sai dua li qhov peb xav tau los ntawm kev taug kev tag nrho-ntev ntawm cov tib neeg.
- Siv lub axes hla lub cav mus rau ntau daim ntoo.
Pom zoo:
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