影响街道绿化樟树叶片黄化的土壤障碍因子  

Soil barrier factors affecting chlorosis of camphor tree leaves in street greening

作　　者：李利敏[1] 于英翠[1] 刘思春[1] 吴良欢[2] 李晓明[1] LI Limin;YU Yingcui;LIU Sichun;WU Lianghuan;LI Xiaoming(College of Resources&Environment,Northwest A&F University,Yangling,Shaanxi 712100,China;College of Environmental and Resource Sciences,Zhejiang University,Hangzhou,Zhejiang 310029,China)

机构地区：[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310029

出　　处：《江苏大学学报（自然科学版）》2021年第4期478-484,共7页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(31572194);浙江省重点研发计划项目(2015C03011)。

摘　　要：为了分析引起张家港市樟树叶片失绿黄化的主要原因,以张家港市4条主要街道两旁发生叶片黄化樟树的立地土壤为研究对象,以叶片正常樟树的立地土壤为参照对象,采集0~20 cm及20~40 cm土层中的土样,对土样进行理化性质的测定,并研究了黄化樟树与土壤理化性质之间的关系.研究结果表明:黄化樟树立地土壤pH以及HCO 3-、有效磷和有效铜的质量分数均高于正常株,而有机质、速效氮、速效钾、有效铁、有效锰和有效锌的质量分数低于正常株;土壤的pH以及HCO 3-、有效磷、有效铜的质量分数与有效铁质量分数之间为负相关,而土壤有机质、速效氮、速效钾、有效锰、有效锌的质量分数与有效铁质量分数之间为正相关.To investigate the main factors affecting chlorosis of camphor tree leaves in Zhangjiagang city,taking the site soil of chlorosis camphor tree on both sides of the 4 main streets in Zhangjiagang city as research object and with the site soil of normal camphor tree as contrast,the soil samples from 0 to 20 cm and from 20 to 40 cm were collected,and the physical and chemical properties of soil sample were determined.The relationship between chlorosis camphor trees and soil physical and chemical properties was analyzed.The results show that soil pH,HCO 3-,available phosphorus and available copper of chlorosis trees are higher than those of normal trees,while organic matter,available nitrogen,available potassium,available iron,available manganese and available zinc are lower.Soil pH,HCO 3-,available phosphorus and available copper are negative correlation with available iron,while organic matter,available nitrogen,available potassium,available manganese and available zinc are positive correlation with available iron.

关 键 词：樟树 黄化 施肥 土壤 障碍因子 

分 类 号：S792.23[农业科学—林木遗传育种]