徐州市樟树黄化病与土壤理化性质的关系  

Cinnamomum camphora chlorosis and soil physicochemical properties

作　　者：张俊叶[1,2,3] 司志国[3] 俞元春[1,2] 李旭冉 郭伟红 

机构地区：[1]南京林业大学南方现代林业协同创新中心,江苏南京210037 [2]南京林业大学生物与环境学院,江苏南京210037 [3]河南职业技术学院环境艺术工程系,河南郑州450046 [4]徐州市城市园林绿化管理站,江苏徐州221018

出　　处：《浙江农林大学学报》2017年第2期233-238,共6页Journal of Zhejiang A&F University

基　　金：国家自然科学基金资助项目(31670615;31270664;31511130024);高等学校博士学科点专项科研基金项目(20123204110004);江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：通过对江苏省徐州市樟树Cinnamomun camphora土壤理化性质的调查评价,分析引起樟树叶片黄化的主要因素。结果表明:0~30 cm土层黄化样地土壤容重比非黄化样地高20.61%,差异显著(P<0.05),30~60 cm土层土壤容重差异不显著;黄化样地土壤pH值变幅为pH 8.28~8.64,呈碱性,非黄化样地土壤pH值变幅为pH 6.57~7.45,呈中性;黄化样地和非黄化样地土壤有机质、全氮、有效磷、铁、锰质量分数差异显著(P<0.05),0~30 cm土层非黄化样地分别比黄化样地高62.84%,67.44%,74.55%,137.47%,71.25%;30~60 cm土层非黄化样地分别比黄化样地高30.89%,57.57%,134.06%,86.93%,71.38%。速效钾、锌及铜质量分数差异不显著。黄化样地土壤pH值偏高,土壤容重偏大,土壤有机质、全氮、速效磷、铁和锰质量分数偏低。推测土壤呈碱性及有效铁质量分数较低是引起樟树黄化的主要因素。To determine the cause of leaf chlorosis of Cinnamomum camphora, soil physicochemical properties were analyzed and evaluated. Results showed that in the 0-30 cm layer, soil bulk density in yellowing plots was significantly greater（P〈0.05） than that in non-yellowing plots; whereas, in the 30-60 cm layer there were no significant differences. Soil pH in yellowing plots was 8.28-8.64 and in non-yellowing plots was 6.57-7.45.For both 0-30 cm and 30-60 cm layers, yellowing plots were significantly greater than non-yellowing plots（P〈0.05） for soil organic matter（SOM）, total nitrogen（N）, available phosphorus（P）, available iron（Fe）,and manganese（Mn）. The yellowing plots were greater than non-yellowing plots in the 0-30 cm layer for SOM（62.84%）, total N（67.44%）, available P（74.55%）, available Fe（137.47%）, and Mn（71.25%）, and in the30-60 cm plots for SOM（30.89%）, total N（57.57%）, available P（134.06%）, available Fe（86.93%）, and Mn（71.38%）. No significant differences were found for available potassium, Zn, and Cu. Thus, soil alkalinity and low available Fe were the main factors causing C. camphora yellowing.

关 键 词：土壤学 土壤评价 樟树 黄化 土壤理化性质 徐州市 

分 类 号：S718.5[农业科学—林学]