文献类型：期刊文献

中文题名：夹竹桃光合及荧光特性对海岸线距离的响应

英文题名：Responses of Photosynthesis and Chlorophyll Fluorescence Characteristics of Nerium indicum to Distance from the Coastline

作者：董毅[1] 吴统贵[1] 顾建明[2] 虞木奎[3] 成向荣[3] 段溪[3] 王臣[4]

第一作者：董毅

机构：[1]中国林业科学研究院亚热带林业研究所,富阳311400;[2]上海市浦东新区林业站;[3]中国林业科学研究院亚热带林业研究所;[4]山东省乳山市林业局

年份：2012

卷号：40

期号：12

起止页码：60-62

中文期刊名：东北林业大学学报

外文期刊名：Journal of Northeast Forestry University

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

基金：“十一五”科技支撑课题(2009BADB2B03);浙江省重大科技专项(2011C12016)

语种：中文

中文关键词：海岸线;风;光合作用;叶绿素荧光;夹竹桃

外文关键词：Coastline; Wind; Photosynthesis; Chlorophyll fluorescence; Nerium indicum

分类号：S718.43

摘要：采用LI-6400便携式光合作用测定仪和PAM-2500便携式调制叶绿素荧光测定仪对距海岸线不同距离夹竹桃叶片的光合作用和叶绿素荧光特性进行了系统测量。结果表明:风力胁迫对夹竹桃叶片的光合、蒸腾特征产生明显的影响,离海岸线最近(风速最大)的D4(距海岸线4 km)处的夹竹桃叶片净光合速率(Pn)、蒸腾速率(Tr)明显低于其他各点(距离海岸线5、6、7、8 km,分别标记为D5、D6、D7、D8),并且随着海岸线距离的增加,Pn和Tr都呈上升的趋势;随着海岸线距离的增加,Fo、Fv/Fm逐渐增大,qP与qN发生一定的变化,但差异不显著(P>0.05);夹竹桃东方向叶片作为主要的迎风面,并没有因为长期的风胁迫而与其他3个方向的叶片光合、荧光特征产生明显的不同。
A systematic test was carried out on photosynthesis and chlorophyll fluorescence characteristics of Net/urn ind/cum Mill. , which were grown in different sites far from the coastline, using Li-6400 （Li-COR,Co. USA） and PAM-2500 （Walz, German）. Resul.ts show that wind loading has a significant impact on the photosynthesis and transpiration charac- teristics of The net photosynthesis rate and transpiration rate of trees grown in site 134, which are nearest to the coastline and algo share the＇biggest wind loading, were obviously lower than those of other sites （i. e. sites D5, D6, D7, D8）. Meanwhile., the net photosynthesis rate, transpiration rate, initial fluorescence （ Fo ） , and photochemical efficiency （Fn/Fm） of leaves increased with increasing distance of the trees from the coastline. Photochemical quenching （ Fe ） and non-photochemical quenching （ FN ） were different between different sites, but there was no significant difference （P〉0. 05）. The east-facing leaves, which also faced the main wind direction, did not show significant difference in photosynthesis and fluorescence characteristics compared with those facing other three directions （ i. e south, west. north）.