不同冠层和胸径的云南沉香叶片叶绿素特性分析  

Chlorophyll characteristics of leaves of aquilaria yunnanensis with different canopy layers and DBH

作　　者：张曦 雷苑 李秋燕 李杰 周文 蒋小元 者建苍 石凤伟 ZHANG Xi;LEI Yuan;LIU Qiuyan;LI Jie;ZHOU Wen;JIANG Xiaoyuan;ZHE Jiancang;SHI Fengwei(Nuozhadu Provincial Nature Reserve Bureau,Pu'er 665000)

机构地区：[1]糯扎渡省级自然保护区管护局,云南普洱665000

出　　处：《林业建设》2024年第6期37-41,共5页Forestry Construction

基　　金：云南沉香迁地保护与繁殖培育。

摘　　要：植物叶绿素是光合作用的关键色素,在光能利用和转化过程中发挥核心功能,并决定植物的生产潜力和实际产量水平。本研究测定云南沉香不同冠层和胸径叶片叶绿素含量,以期助力沉香产业科学发展。以云南省糯扎渡省级自然保护区周边人工种植云南沉香目标树种为研究对象,通过采集其叶片,采用分光光度法对研究区不同冠层和胸径叶片的叶绿素进行检测,数据通过SPSS开展相关性分析和线性回归分析,得出以下结果。(1)叶绿素含量和层数之间有着显著的负相关关系。(2)叶绿素含量和胸径之间并没有相关关系。(3)叶绿素含量会对层数产生显著的负向影响关系,但是胸径并不会对层数产生影响。因此,云南省糯扎渡省级自然保护区周边人工种植云南沉香叶片叶绿素随着冠层的增加而减少,它们存在负相关关系。【Objective】Plant chlorophyll is a key pigment in photosynthesis,plays a core function in the process of light energy utilization and conversion,and determines the production potential and actual yield level of plants.In order to help the scientific development of agarwood industry,we determined the chlorophyll content of different canopy and DBH leaves of agarwood in Yunnan province.【Methods】The target tree species of Yunnan agarwood planted artificially around Nuozhadu provincial nature reserve in Yunnan province was selected as the research object.The leaves were collected and the chlorophyll of leaves of different canopy layers and DBH in the study area were detected by spectrophotometry.The data obtained were analyzed by SPSS for correlation and linear regression analysis.【Results】(1)There was a significant negative correlation between chlorophyll content and layer number.(2)There was no correlation between chlorophyll content and DBH.(3)Chlorophyll content has a significant negative effect on the number of layers,but DBH has no effect on the number of layers.【Conclusion】Leaf chlorophyll decreased with the increase of canopy,and there was a negative correlation between them.

关 键 词：沉香 冠层 胸径 叶绿素 SPSS 糯扎渡省级自然保护区 

分 类 号：S792.99[农业科学—林木遗传育种]