以yi茶cha樹shu為wei例li，茶cha樹shu為wei采cai葉ye的de作zuo物wu
，采cai多duo采cai少shao或huo者zhe采cai得de合he理li不bu合he理li，直zhi接jie間jian接jie與yu茶cha樹shu生sheng物wu產chan量liang和he采cai收shou下xia來lai的de經jing濟ji產chan量liang有you密mi切qie相xiang關guan。要yao解jie決jue合he理li采cai摘zhai問wen題ti，解jie決jue“采與養”之zhi間jian的de矛mao盾dun問wen題ti
，首shou先xian應ying摸mo清qing葉ye麵mian積ji大da小xiao的de變bian化hua情qing況kuang。我wo們men可ke以yi通tong過guo激ji光guang葉ye麵mian積ji儀yi對dui茶cha樹shu葉ye麵mian積ji進jin行xing測ce量liang。茶cha樹shu的de葉ye片pian是shi進jin行xing光guang合he作zuo用yong的de主zhu要yao場chang所suo，而er光guang合he作zuo用yong對dui於yu茶cha樹shu的de生sheng長chang發fa育yu來lai講jiang至zhi關guan重zhong要yao，所suo以yi在zai茶cha葉ye種zhong植zhi管guan理li中zhong
，對dui於yu光guang合he作zuo用yong的de重zhong視shi程cheng度du非fei常chang高gao。影ying響xiang光guang合he作zuo用yong效xiao果guo除chu了le葉ye片pian中zhong的de葉ye綠lv素su含han量liang外wai，還hai與yu葉ye麵mian積ji的de大da小xiao有you關guan，利li用yong葉ye麵mian積ji儀yi可ke以yi準zhun確que的de測ce量liang出chu葉ye片pian葉ye麵mian積ji大da小xiao，在zai茶cha葉ye種zhong植zhi管guan理li中zhong起qi到dao一yi定ding的de指zhi導dao作zuo用yong。