rows of green terraced choui fong tea plantation on highland

agriculture area aromatic branch bush chiang choui climate country countryside crop cultivation culture curve doi drink egcg environment farm field fong fresh garden green growth harvest herbal highland hill hilltribe leaf leaves local lush mae maejan morning mountain natural north oolong organic otpp pattern picking plant plantation rai row rural salong season slope steps tea terrace terrain thailand top traditional tree tribal tribe tropical valley view weather wulong