APP下载

光伏板遮阴对大叶种茶树叶片光合特性和产量的影响

2025-08-03马锦雄王宏琳张军谢鹏殷雄康袁海英田洋李秀张春花王睿芳刘杰

安徽农业科学 2025年12期
关键词:光化学茶树茶园

中图分类号S62文献标识码A

文章编号 0517-6611(2025)12-0164-04

doi: 10.3969/j.issn.0517-6611.2025.12.036

开放科学(资源服务)标识码(OSID):

EffectsofPhotovoltaicPanel's Shadingon thePhotosynthetic Characteristicsand YieldofCameliasinensis MA Jin-xiong1 ,WANG Hong-lin², ZHANG Jun2 et al(1.Yunnan Longyuan New Energy Co.,Ltd.,Kunming,Yunnan 6501OO;2.College of Tea and Coffee, Pu 'erUniversity,Pu’er,Yunnan 665000)

AbstractObjetie]Theresearchaimedtoexploretheffetsofphotovoltaicpanel’sshadingonthepotosyntheticcharacteristsand yieldofCmelisisdlroptedifpotocstrodetidsi forthetea-potoaicmplemtaryiide.ethdhaitetofophllolloeseps tea yield of C .sinensis werecomparedamong five kindsoflightenvironment.[Result]Photovoltaicpanel'sshadinghadsignificantefectson the relative content of chlorophyll,fluorescence parameters and tea yield of C .sinensis.Compared with the non-shading treatment(CK),the initial fluorescence value (Fo ),maximum fluorescence value (Fm ),the actual photochemical quantum yield of PSI (Phi2),the quantum yield of non-regulating energy disspation (PhiNO),and the steady-state fluorescence value ( Fs ) in each photovoltaic panel’s shading treatment all significantly increased ( Plt;0.05 ).Compared with the non-shading treatment (CK),the non-photochemical quenching coeffcient (NPQ),photochemical quenching coefficient(qL),relative electron transfer rate of PSI (ETR),and quantum yield of regulated energy dissipation (PhiNPQ) in each photovoltaic panel’s shading treatment all significantly decreased (Plt;0.05) .[Conclusion] Moderate shading can alleviate the damages of strong light and high temperature on the photosynthetic system of C . sinensis in summer and autumn,and increase thechlorophyllcontentofleavesandteayield,whichhasimportantconoicvaluefordeveloingteaesoucesinthesummerandut. The tea-photovoltaic complementary mode should be promoted in Pu -erregion of Yunnan Province,the shading degree of photovoltaic panels should be 30%-40% :

KeywordsCameliasinesis;hotovaicpanel'sading;Clorophyll;Fuorescnceparameters;a-photovotaicompltariy

大叶种茶树(Camelliasinensis)为山茶属灌木或小乔木,发源于我国西南地区森林,茶树具有喜荫蔽、喜漫射光的生长特性[1-2]。大叶种茶树在夏季正午强光环境下会加重植物的光合“午休\"现象,降低光合作用效率[3-4]。强光会促使大叶种茶树增强非光化学淬灭效应,将过剩光能以热能形式耗散,消耗过多的能量,从而影响光合碳收人[5-6]。光照强度过大会使夏秋茶苦涩味加重、香气减弱、色泽淡化和干枯,严重影响茶叶的品质和口感,进而导致产量和经济效益下降。夏秋茶鲜叶苦涩味较重,不易达到春茶的品质标准[2.7]。夏秋茶的产量占全年总产量的 60% 以上[8]。因此,探寻可以降低夏秋茶苦涩味的栽培措施,对于提升夏秋茶的品质,进而提高夏秋茶的经济价值具有重要现实意义。

光伏茶园是在茶树的上部空间安装光伏板系统发电,下部空间茶树正常生产,高效利用太阳能资源产出清洁绿色能源,光伏板的铺设在获得发电收益的同时会对茶树造成遮阴,从而改变茶树的生理状态[9]。在农业生产中,大多数作物被遮阴会导致农业经济收益降低[9]。但是,光伏板遮阴可以改善茶园生态环境,提高茶叶的产量和品质[5,10-11]。研究表明,在光伏发电和茶叶栽培相结合的茶光互补模式中,光伏板适度遮阴有利于缓解夏秋季节强光和高温对大叶种茶树叶片光合系统的伤害[10-I1],同时提高了叶片的叶绿素含量[12-13],对于夏秋茶资源开发具有重要的经济价值。……

登录APP查看全文

猜你喜欢

光化学茶树茶园
基于高通量测序对不同茶园土壤真菌群落结构特征的分析
137Cs-γ辐照对拟南芥子一代的影响研究
盐碱地紫花首蓿光合荧光参数与品质关系研究
嫁接对云南大叶种茶树内含成分和芽叶性状的影响
茶园光伏技术应用研究进展与展望
我国低产低效茶园改造研究进展及展望
不同冲泡条件对凤庆大叶种茶树花水提物清除DPPH能力的影响
勐海布朗山茶树干与侧枝构造特征比较
茶树根腐病菌生物学特征及室内药剂筛选
纳米金对桔梗生长和叶绿素荧光特性的影响