|
|||||
|
|
| 影响市区樟树黄化病的主要因素研究 | |
| 引用本文： | 陈超燕,刘洪剑,束庆龙,刘晓莉,张鑫.影响市区樟树黄化病的主要因素研究[J].林业科学研究,2008,21(5):625-629. |
| 作者姓名： | 陈超燕 刘洪剑 束庆龙 刘晓莉 张鑫 |
| 作者单位： | 1. 安徽农业大学林学与园林学院,安徽,合肥,230036;山东省东营市恳利县林业局,山东,东营,257000 2. 安徽省林业科学研究院,安徽,合肥,230031 3. 安徽农业大学林学与园林学院,安徽,合肥,230036 4. 安徽农业大学林学与园林学院,安徽,合肥,230036;安徽省合肥市林校,安徽,合肥,230000 |
| 摘 要： | 对合肥市区樟树黄化病与立地条件关系进行了调查研究,并对不同程度的病株叶片营养成分进行了分析,结果表明:樟树黄化原因复杂多样,主要原因是pH值过高导致土壤中的有效铁不能被根系吸收;其他原因如地表水泥覆盖过度、土壤密度过大、污染严重、土壤营养条件不良等因素构成.在土壤矿质元素中,黄化程度与速效K、B、Cu、Zn的含量呈正相关;与有机质、有效Fe、速效N、速效P、Mn等元素含量呈负相关.在樟树叶片营养元素中,速效N、Zn、Fe和Mn含量随着黄化程度的增加而下降;S、Ca、B和Cu的含量随着病害的加重而增加. |
| 关 键 词： | 樟树 黄化病 土壤肥力 市区环境 |
| 收稿时间： | 2006/12/30 0:00:00 |
Studies on theMa in Causal Factors Affect Cinnam om um cam phorYellowing in Urban Condition |
|
| CHEN Chao-yan,LIU Hong-jian,SHU Qing-long,LIU Xiao-li and ZHANG Xin.Studies on theMa in Causal Factors Affect Cinnam om um cam phorYellowing in Urban Condition[J].Forest Research,2008,21(5):625-629. | |
| Authors: | CHEN Chao-yan LIU Hong-jian SHU Qing-long LIU Xiao-li and ZHANG Xin |
| Abstract: | The main factors affected Cinnam om um cam phor yellowing in urban area were investigated, and somenutrient elements in soil and leaveswere determined. The results showed that there were many factors as the causesof camphor-tree yellowing and the key factorswere the root covered tightlywith the cement; the soil polluted by thebuilding garbage or waste or the sewage; soil PH value too high; the soil texture too clay and harden which causedby human activity, and im-balance of nutrient elements, etc. . In soilmineral elements, the severity of yellowingwaspositively correlated with the contents of the available potassium, boron, copper, zinc; and negatively correlatedwith that of the organic matter, available ferric, nitrogen, phosphorus, and manganese. In leaves the contents ofavailable nitrogen, zinc, ferric, and manganese increased with the decrease of disease index and that of sulphur,calcium, boron and copper decrease with the increase of disease index. |
| Keywords: | Cinnam om um cam phora yellowing disease soil fertility urban environment |
| 本文献已被 维普 万方数据 等数据库收录！ | |
| 点击此处可从《林业科学研究》浏览原始摘要信息 | |
| 点击此处可从《林业科学研究》下载免费的PDF全文 | |