Qhov tseem ceeb tshaj plaws uas cuam tshuam rau qhov zoo ntawm cov tshuaj yej ntsuab yog ntau yam ntawm cov tshuaj yej ntoo thiab ecological ib puag ncig ntawm thaj chaw tsim khoom.
Cov ntau yam yog yoog raws li kev tsim khoom, feem ntau xav tau kev loj hlob thaum ntxov, nplooj ntsuab xim, buds me me thiab nplooj, zoo rhiab, twisted nplooj npoo, tsa nplooj nplooj, ntau cov plaub hau, thiab siab amino acid cov ntsiab lus haum rau ntsuab tshuaj yej ntau lawm.
Ib puag ncig ecological xav tau qhov siab ntawm 300-800 meters. Raws li cov lus hais mus, 'zoo tshuaj yej los ntawm roob siab thiab huab.' Hauv thaj chaw uas muaj roob siab thiab latitudes, muaj qhov kub thiab txias sib txawv nruab hnub thiab hmo ntuj, thiab cov ntoo tshuaj yej khaws cov khoom noj ntau ntxiv hauv lawv cov tua tshiab. Cov ntsiab lus kub npau npau muaj cov ntsiab lus siab, thiab cov tshuaj yej ntsuab muaj qhov tsw zoo.
Nyob rau hauv cov cheeb tsam roob uas muaj huab cua siab, diffused lub teeb muaj txiaj ntsig zoo rau kev tsim cov amino acids hauv tshuaj yej buds thiab nplooj, thiab hnub ci kuj tuaj yeem ua rau kom muaj aroma ntawm tshuaj yej nplooj.
Cov yam ntxwv ntawm latitude thiab siab roob ntsuab tshuaj yej yog siab aroma, ntsuab xim, thiab kuj ntshiab saj.
Feem ntau yog vim nws cov ntsiab lus siab ntawm cov amino acids, cov khoom kub npau npau, thiab cov ntsiab lus tsawg ntawm polyphenols. Nyob ib ncig ntawm 30 degrees sab qaum teb latitude, qhov zoo ntawm cov tshuaj yej ntsuab yog feem ntau muaj feem xyuam rau qhov zoo ecological ib puag ncig, nrog rau cov cheeb tsam tsim muaj ib puag ncig zoo.
