| 湿地植物对土壤生态系统中氮含量变化的响应 |
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| 引用本文： | 王庆改1,白军红2,张勇3,丁秋祎2,高海峰2. 湿地植物对土壤生态系统中氮含量变化的响应[J]. 水土保持研究, 2007, 14(4): 164-167 |
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| 作者姓名： | 王庆改1 白军红2 张勇3 丁秋祎2 高海峰2 |
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| 作者单位： | 1. 国家环境保护总局环境工程评估中心, 北京, 100012;2. 北京师范大学环境学院水环境模拟国家重点实验室, 北京, 100875;3. 河北省邯郸市第三中学, 河北, 邯郸, 056001 |
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| 摘 要： | 氮是植物生长必需的生源要素之一,湿地生态系统中土壤氮转化过程直接影响着湿地植物可吸收利用的有效氮含量的多寡,对植物的生长、演替和初级生产力具有明显的制约作用;湿地植物在富氮土壤中生长能够获得较高的生产力;灰色关联分析表明湿地植物氮含量主要受土壤中铵态氮和硝态氮含量变化的制约;建坝、农耕、放牧、排水等人类干扰活动也可通过改变湿地土壤氮含量而对湿地植物的生长产生影响.
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| 关 键 词： | 湿地植物 土壤生态系统 氮含量 灰色关联 |
Effects of Changes in Nitrogen Contents of Soil Ecosystem on Wetland Plants |
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| WANG Qing-gai1,BAI Jun-hong2,ZHANG Yong3,DING Qiu-yi2,GAO Hai-feng2. Effects of Changes in Nitrogen Contents of Soil Ecosystem on Wetland Plants[J]. Research of Soil and Water Conservation, 2007, 14(4): 164-167 |
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| Authors: | WANG Qing-gai1 BAI Jun-hong2 ZHANG Yong3 DING Qiu-yi2 GAO Hai-feng2 |
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| Affiliation: | 1. Appraisal Center of Environment and Engineering, State Environment Protection Administration of China, Beijing, 100012, China;2. State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China;3. The Third High School in Handan city of Hebei Province, Handan, Hebei, 056001, China |
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| Abstract: | Nitrogen is one of life elements for plant growth.Nitrogen processes of soils from wetland ecosystem directly affect available nitrogen contents which impacts plant growth,evolution,and primary production.There is higher primary production for wetland plants in marsh soils with rich nitrogen.Gray correlation analysis shows that nitrogen contents in wetland plants are mainly controlled by ammonia nitrogen and nitrate nitrogen of marsh soils.Human activities such as dam construction,fertilization,drainage also affect wetland plant growth by altering nitrogen processes of soil ecosystem. |
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| Keywords: | wetland plant soil ecosystem nitrogen contents gray relation |
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