城市绿化中樟树叶片黄化的营养诊断

doi:10.3969/j.issn.1004-1524.2019.12.13

浙江农业学报 ›› 2019, Vol. 31 ›› Issue (12): 2043-2048.DOI: 10.3969/j.issn.1004-1524.2019.12.13

城市绿化中樟树叶片黄化的营养诊断

李利敏¹, 于英翠¹, 刘思春¹, 吴良欢^2,*

1.西北农林科技大学资源环境学院,陕西杨凌712100;
2.浙江大学环境与资源学院,浙江杭州 310058

收稿日期:2019-05-28 出版日期:2019-12-25 发布日期:2019-12-25
通讯作者: 吴良欢,E-mail :finm @zju. edu. cn
作者简介:李利敏(1977-),女,河南济源人,博士,实验师,主要从事植物铁营养及铁肥开发研究。E-mail:liliminamy@163.com
基金资助:
浙江省重点研发计划(2015C03011); 国家自然科学基金(31572194)

Nutrition diagnosis of camphora tree leaves in municipal landscaping

LI Limin¹, YU Yingcui¹, LIU Sichun¹, WU Lianghuan^2,*

1. College of Resources & Environment, Northwest A&F University, Yangling 712100, China;
2.College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China

Received:2019-05-28 Online:2019-12-25 Published:2019-12-25

摘要/Abstract

摘要： 樟树(Cinnamomum camphora)作为城市绿化树种常会发生叶片黄化现象,既引起树木生长不良,也影响景观的美观度。本试验以张家港市主要街道两旁发生叶片黄化的樟树为研究对象,以叶片颜色正常的樟树为对照,通过采集叶片进行养分含量、SPAD值和酶活性等测定,诊断黄化叶片的营养特征。结果表明:黄化樟树叶片全磷含量比正常樟树的高,而全氮含量、全钾含量、SPAD值、活性铁含量、全铁含量、过氧化氢酶和过氧化物酶含量比正常樟树的低;活性铁与全磷含量之间表现为拮抗作用,活性铁与全氮含量、全钾含量、SPAD值、全铁含量、过氧化氢酶和过氧化物酶含量表现为增效作用。

关键词: 樟树, 城市绿化, 黄化, 施肥

Abstract: Chlorosis often occurs in camphor trees (Cinnamomum camphora) which are used for municipal landscaping. Chlorosis not only shows the poor growth of trees, but also affects the beauty of the landscape. Taking chlorosis camphor tree on both sides of main streets of Zhangjiagang City as an object, and normal camphor tree as the control, nutrient content, SPAD value and enzyme activity of leaves were measured to diagnose the nutritional characteristics of camphor chlorosis. The results indicated that total phosphorus content of chlorosis trees were higher than normal trees, while the contents of total nitrogen, total potassium, SPAD value, active iron, total iron, catalase and peroxidase activities were lower. There was antagonism between active iron and total phosphorus, while there was synergy between the active iron and total nitrogen, total potassium, SPAD value, total iron, catalase, peroxidase.

Key words: camphor, municipal landscaping, chlorosis, fertilizing

中图分类号:

S731.2

李利敏, 于英翠, 刘思春, 吴良欢. 城市绿化中樟树叶片黄化的营养诊断[J]. 浙江农业学报, 2019, 31(12): 2043-2048.

LI Limin, YU Yingcui, LIU Sichun, WU Lianghuan. Nutrition diagnosis of camphora tree leaves in municipal landscaping[J]. , 2019, 31(12): 2043-2048.

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城市绿化中樟树叶片黄化的营养诊断

Nutrition diagnosis of camphora tree leaves in municipal landscaping

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