干旱区生态环境知识资源中心(Arid): 氮磷添加对唐古特白刺叶绿素含量和光合活性的影响

Arid

	氮磷添加对唐古特白刺叶绿素含量和光合活性的影响
其他题名	Effects of Nitrogen and Phosphorus Addition on Chlorophyll Content and Photosynthetic Activity of Nitraria tangutorum
	刘成功; 孙高洁; 段娜; 李清河; 朱甜甜; 李慧卿
来源期刊	草地学报
ISSN	1007-0435
出版年	2020
卷号	28 期号:3 页码:694-702
中文摘要	本文采用叶绿素荧光成像和叶绿素荧光动力学相结合的方法研究外源氮(nitrogen,N)、磷(phosphorus,P)对荒漠植物唐古特白刺(Nitraria tangutorum)叶绿素含量、叶绿素荧光参数、荧光比Rfd的影响。结果表明:在添加P为3gP·m~(-2)下,添加N为5gN·m~(-2),10gN·m~(-2)和15gN·m~(-2)时白刺的叶绿素含量显著下降(P <0.05);随着P的添加,叶绿素含量呈先增加后减小趋势,P3时(3gN·m~(-2)+6gP·m~(-2))最大;外源N、P对白刺的Fm, Fv,F_v/F_m和Rfd的影响不显著,说明外源N、P未损害PSⅡ反应中心;单施P时,白刺的Rfd最大,荧光强度最强,而P3时的光化学效率较好,叶柄以上至中部的荧光较强。因此,本研究得出外源N、P对白刺叶绿素含量和荧光活性的影响具有耦合效应,N添加为3gN·m~(-2)下配施6gP·m~(-2)能够改善白刺的叶绿素含量和荧光活性;叶绿素荧光成像技术可直观地看出白刺的叶绿素荧光分布特征,为及时发现荒漠植物的胁迫症状提供了方法。
英文摘要	In this study,we used the method of chlorophyll fluorescence imaging and chlorophyll fluorescence dynamics to explore the effects of exogenous nitrogen and phosphorus addition on chlorophyll content, chlorophyll fluorescence parameters and fluorescence ratio Rfdimages of the typical desert plant,Nitraria tangutorum.The results showed that the chlorophyll content in the leaves of N.tangutorum decreased significantly(P<0.05)when 5,10and 15g N·m~(-2) nitrogen combined with 3gP·m~(-2)phosphorus were added.With the increase of phosphorus addition,the chlorophyll content in the leaves of N.tangutorumtrended to increase first and then decrease,the maximum chlorophyll content reached when 6 g P·m~(-2) phosphorus were provided.There was no difference among Fm,Fv,F_v/F_mand Rfd gradients (P>0.05),and exogenous nitrogen and phosphorus did not damage the reaction center of PSⅡ.In addition, The CFI technology showed when 3g P·m~(-2) was added,the fluorescence ratio Rfdof N.tangutorum was the largest and the fluorescence intensity was the strongest,and the fluorescence was stronger in the middle and upper part of the leaves.Under fixed nitrogen level,the P3had better photochemical efficiency, and the fluorescence intensity from above petiole to middle part was stronger.Therefore,it was concluded that exogenous nitrogen and phosphorus addition have coupling effect on chlorophyll content and fluorescence activity of N.tangutorum,and 3g N·m~(-2) nitrogen with 6g P·m~(-2) phosphorus can improve the chlorophyll content and fluorescence activity.By means of CFI technology,we can directly see the distribution characteristics of chlorophyll fluorescence on the leaves of N.tangutica.It provides a method for inding the stress symptoms of desert plants in time.
中文关键词	唐古特白刺 ; 氮磷添加 ; 光合活性 ; 叶绿素荧光成像
英文关键词	Nitraria tangutorum Nitrogen and phosphorus additions Photosynthetic activity Chlorophyll fluorescence imaging
类型	Article
语种	中文
收录类别	CSCD
WOS研究方向	Forestry
CSCD记录号	CSCD:6785133
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336798
作者单位	刘成功, 中国林业科学研究院林业研究所;;国家林业和草原局林木培育重点实验室, ;;国家林业和草原局林木培育重点实验室, ;;, 北京;;北京 100091;;100091, 中国.; 孙高洁, 中国林业科学研究院林业研究所;;国家林业和草原局林木培育重点实验室, ;;国家林业和草原局林木培育重点实验室, ;;, 北京;;北京 100091;;100091, 中国.; 李清河, 中国林业科学研究院林业研究所;;国家林业和草原局林木培育重点实验室, ;;国家林业和草原局林木培育重点实验室, ;;, 北京;;北京 100091;;100091, 中国.; 朱甜甜, 中国林业科学研究院林业研究所;;国家林业和草原局林木培育重点实验室, ;;国家林业和草原局林木培育重点实验室, ;;, 北京;;北京 100091;;100091, 中国.; 李慧卿, 中国林业科学研究院林业研究所;;国家林业和草原局林木培育重点实验室, ;;国家林业和草原局林木培育重点实验室, ;;, 北京;;北京 100091;;100091, 中国.; 段娜, 中国林业科学研究院沙漠林业实验中心, 磴口, 内蒙古 015200, 中国.
推荐引用方式 GB/T 7714	刘成功,孙高洁,段娜,等. 氮磷添加对唐古特白刺叶绿素含量和光合活性的影响[J],2020,28(3):694-702.
APA	刘成功,孙高洁,段娜,李清河,朱甜甜,&李慧卿.(2020).氮磷添加对唐古特白刺叶绿素含量和光合活性的影响.草地学报,28(3),694-702.
MLA	刘成功,et al."氮磷添加对唐古特白刺叶绿素含量和光合活性的影响".草地学报 28.3(2020):694-702.