| 南极地区苔藓地衣植物的地球化学元素营养富集特征 |
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| 引用本文： | 李小梅,赵俊琳,孙立广.南极地区苔藓地衣植物的地球化学元素营养富集特征[J].应用生态学报,2001,12(4):513-516. |
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| 作者姓名： | 李小梅 赵俊琳 孙立广 |
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| 作者单位： | 1. 北京师范大学环境科学研究所
2. 中国科技大学极地研究室 |
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| 基金项目： | 国家"九五”重点科技攻关项目(98-927-01-04). |
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| 摘 要： | 研究南极苔藓地衣中地球化学元素的营养富集特征,发现K,Ca为苔藓地衣中最活跃元素,主要以主动吸收的方式累积于苔藓地衣植物中,P极易富集在地衣的藻层,参与藻类的有机合成过程,苔藓容易富集环境中的S,Al,Si以被动吸收的方式累积于地衣中,同时Fe,Mg以被动吸收的方式累积于苔藓体内,根据元素的含量和营养作用,研究认为K,Ca苔地衣的大量无机营养元素,S,P为苔藓地衣的中等营养元素,Al,Si为苔藓地衣的环境累积元素。
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| 关 键 词： | 苔藓植物 地衣 地球化学元素 植物营养 南极地区 营养富集 |
| 文章编号： | 100-9332(2001)04-0513-04 |
| 修稿时间： | 2000年7月17日 |
Nourishing characteristic of geochemical elements in Antarctic mosses and lichens. |
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| LI Xiaomei,ZHAO Junlin.Nourishing characteristic of geochemical elements in Antarctic mosses and lichens.[J].Chinese Journal of Applied Ecology,2001,12(4):513-516. |
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| Authors: | LI Xiaomei ZHAO Junlin |
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| Abstract: | Studies on the nourishing properties of geochemical elements in Antarctic mosses and lichens show that potassium and calcium were the most active elements,while phosphorous was accumulated in the middle part of lichen cells,and participated in organic synthesis.Mosses accumulated sulphur stressly,but took in iron and magnesium negatively.Aluminum and silicon were absorbed passively by lichens.It is concluded that potassium and calcium were the important nutrient elements for the growth of mosses and lichens,sulphur and phosphorous were the middle significant nutrients,while aluminum and silicon were the passively accumulated elements. |
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| Keywords: | Moss Lichen Geochemical elements Plant nutrient |
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