土壤有机碳激发效应的发展及未来研究方向

杨 振宇, 兰 国新
重庆三峡学院环境与化学工程学院;重庆三峡学院三峡库区水环境演变与污染防治重庆市重点实验室

摘要


土壤碳库是陆地生态系统有机碳库的重要组成部分，在全球的碳循环过程中发挥着不可替代的作用。在全球气候变化以及人为活动的影响下，外源有机物的输入将不可避免地引起土壤有机碳的分解速率加快或减慢，这一现象被称为激发效应。激发效应对全球“土壤-大气”之间的相互反馈具有深远影响，对调控全球气候变化具有重要作用。本文总结了激发效应的发展、发生机理以及部分影响因素，并为之后的研究提出了一些建议。

关键词


土壤碳库；激发效应；产生机理；影响因素；研究建议

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参考


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DOI: http://dx.doi.org/10.12361/2661-3786-06-02-132204

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