zhongsuozhouzhi，yingxiangzhiwushengchangfayuzhongyaoyinsuzhiyijiushiguanghezuoyong
，duiyuguoyuaneryan，guanghezuoyonggengshizhijiejuedingleqichanlianghepinzhi
，zheshiyinweiguangzhaojuedingleguoshuguancengneideyepianguanghezuoyongfenbu。guoshuguancengjuyoufeichangfuzadeyizhixing
，zaishuguanbutongbuweiyepiandeguanghenenglicunzaijiaodachayi，zhezhongchayizhuyaoshiyouyepianjieshoudefushebutongyinqi。guoshuyepianzaiqifayuguochengzhongsuojieshoufushebutong，qiguangheqiguanyehuisuizhigaibian，binggaibianyepianguanghenengli。yinweishuguanbutongbuweiyepianguanghenenglihesuoxishoudefushechengyidingbili，ketongguogoujianyepianheguangheyouxiaofushezhijiandeshuxuemoxinglaimoni。duiyuguangheyouxiaofushedecedingjilukeyicaiyong自記式光量子計進行。

    利(li)用(yong)自(zi)記(ji)式(shi)光(guang)量(liang)子(zi)計(ji)分(fen)析(xi)，不(bu)同(tong)有(you)效(xiao)輻(fu)射(she)下(xia)葉(ye)片(pian)光(guang)響(xiang)應(ying)曲(qu)線(xian)存(cun)在(zai)很(hen)大(da)差(cha)異(yi)
，弱(ruo)光(guang)條(tiao)件(jian)下(xia)生(sheng)長(chang)的(de)葉(ye)片(pian)整(zheng)體(ti)光(guang)合(he)值(zhi)較(jiao)小(xiao)也(ye)沒(mei)有(you)明(ming)顯(xian)的(de)光(guang)飽(bao)和(he)點(dian)，主(zhu)要(yao)是(shi)因(yin)為(wei)這(zhe)些(xie)葉(ye)片(pian)處(chu)在(zai)樹(shu)冠(guan)內(nei)膛(tang)或(huo)下(xia)層(ceng)，受(shou)遮(zhe)蔭(yin)影(ying)響(xiang)難(nan)以(yi)達(da)到(dao)光(guang)飽(bao)和(he)點(dian)。當(dang)葉(ye)片(pian)RPAR大於40%後，葉片光合作用的光飽和點隨輻射條件改善而不斷減小。不同光合有效輻射下葉片光合作用的CO2濃度響應曲線也存在很大差異，弱光條件下生長葉片在CO2濃度很低時Pn就達到了飽和，而隨著輻射條件的改善，葉片光合作用的CO2飽和點也隨之升高，這主要是因為輻射改善後葉片變厚、葉綠素增多
，所以其對CO2同化能力也隨之增強。
    不同輻射條件下葉片溫度響應都呈“凸”字形曲線。最適溫度隨輻射條件的改善而升高，多數葉片為20-300C。樹(shu)冠(guan)上(shang)層(ceng)和(he)外(wai)圍(wei)葉(ye)片(pian)得(de)到(dao)的(de)輻(fu)射(she)強(qiang)，經(jing)常(chang)受(shou)到(dao)更(geng)多(duo)高(gao)溫(wen)脅(xie)迫(po)，葉(ye)片(pian)的(de)這(zhe)種(zhong)差(cha)異(yi)有(you)利(li)於(yu)提(ti)高(gao)樹(shu)冠(guan)整(zheng)體(ti)光(guang)合(he)能(neng)力(li)，實(shi)現(xian)對(dui)光(guang)能(neng)的(de)充(chong)分(fen)利(li)用(yong)。
    另ling外wai
，通tong過guo光guang量liang子zi記ji錄lu儀yi的de測ce定ding還hai能neng指zhi導dao果guo園yuan的de管guan理li修xiu剪jian。果guo樹shu一yi般ban成cheng行xing種zhong植zhi
，有you特te定ding樹shu形xing結jie構gou，冠guan層ceng內nei葉ye片pian具ju有you很hen大da的de異yi質zhi性xing，不bu同tong部bu位wei葉ye片pian所suo接jie受shou輻fu射she和he光guang合he能neng力li差cha異yi很hen大da。單dan純chun研yan究jiu葉ye片pian光guang合he特te性xing或huo利li用yong分fen層ceng模mo型xing研yan究jiu樹shu冠guan光guang合he特te性xing都dou很hen難nan反fan映ying出chu樹shu冠guan整zheng體ti的de光guang合he規gui律lv，特te別bie是shi樹shu冠guan不bu同tong部bu位wei葉ye片pian光guang合he差cha異yi圈quan。而er這zhe種zhong差cha異yi對dui於yu研yan究jiu果guo樹shu樹shu形xing特te點dian
、合理負載和精準修剪等都有非常重要的意義。