活性氮增加：一个威胁环境的问题 |
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| 出 版 社：牛态环境 |
| 发表时间：2006 |
| 台 站：
鼎湖山森林生态系统定位研究站
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| 作 者：方华，莫江明 |
| 点 击 率：12656 |
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| 关 键 字：活性氮,污染,环境,全球变化 |
| 摘 要：活性氮增加是前伞球变化的重要现象之一，已经对伞球氮素循环产生了严重的影响。人类活动，如燃料燃烧、氮肥牛产、氮植物的培育和畜牧业的集约经营等是弓I起全球活性氮增加的主要原因。活性氮增加正在引起大气污染、N2O等温室气体增加、森林退化、土壤和淡水酸化、海水富营养化、陆地和水体生态系统物种组成变化和生物多样性减少等诸多环境问题。该文综述了活性氮及其对环境的影响。主要包括：(1)活性氮的来源：(2)活性氮生产的历史与现状；(3)活性氮对大气、水体、森林、土壤等多乖I-牛态系统的影响等．并提出了减少活性氮产量和降低其环境危害的一些思路。 |
| 关 键 字(英文)：reactive nitrogen ；pollution；environment；global change |
| 摘 要(英文)：Being one ofthe important issues ofglobal change，elevated reactive nitrogen has been increasingly concerned worldwide．Human activities such as fossil fuel combustion，nitrogen fertilizer production and cultivation of nitrogen fixing crops are the main sources of reactive N．The elevation of reactive N is causing air pollution，increase ofpotent greenhouse gas N20 concentration，forest degradation，soils and water acidification，etc．In this paper,based on available scien tific knowledge we reviewed the elevation of
reactive nitrogen and its efect on the environment．The review mainly includes the following three aspects：1)the source of the reactive nitrogen；2)the past and present production of reactive nitrogen；3)the effects of reactive nitrogen on atmospheric environment and on various ecosystems(such as water,forest，soil，etc)．In addition，the possible management measures for reducing reactive nitrogen production and its effect on environment are also proposed in this Paper
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 活性氮增加：一个威胁环境的问题_2006 生态环境 莫江明.pdf |
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