| 基于土壤微生物的碳氮互作效应综述 |
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| 引用本文： | 单文俊,王庆贵,闫国永,邢亚娟.基于土壤微生物的碳氮互作效应综述[J].中国农学通报,2016,32(23):65-71. |
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| 作者姓名： | 单文俊 王庆贵 闫国永 邢亚娟 |
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| 作者单位： | 黑龙江大学农业学院与环境学院,黑龙江大学农业学院与环境学院,黑龙江大学农业学院与环境学院,黑龙江大学农业学院与环境学院 |
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| 基金项目： | 黑龙江省自然科学基金重点项目“黑龙江省寒温带针叶林生态系统碳循环对模拟N沉降的响应”(ZD201406)；国家自然科学“大兴安岭北方森林细根动态和形态特征对氮沉降的响应”(41575137),“大兴安岭北方森林生态系统对N沉降增加的响应”(31370494),“小兴安岭阔叶红松林生态系统对N沉降增加的响应”(31170421),“气候变化背景下小兴安岭阔叶红松林土壤碳汇变化机理”(31070406)；科技部基础性工作专项A类项目“东北森林国家级保护区植物群落和土壤生物调查”(2014FY110600)。 |
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| 摘 要： | 土壤微生物在养分循环中起着至关重要的作用,可为陆地生态系统能量流动提供动力。碳(C)、氮(N)元素是构成生物基本骨架和能量代谢最基本的元素,其循环关系到生物生长和生态系统的稳定性。在陆地生态系统中,土壤微生物C、N元素有着明显的相互作用,环境中C、N浓度的变化会促使其发生变化,进而导致微生物群落结构和生物功能改变。笔者从CO2浓度升高、黑碳添加和N沉降加剧出发,总结了环境条件变化对微生物C、N的影响;分析了现实环境背景下土壤微生物C、N的相互作用,探讨微生物C、N的内在联系,为微生物C、N耦合及生态系统C、N耦合提供参考依据。并提出,今后在气候变化对土壤微生物影响的研究中,应当根据地域和时空的差异建立多个研究模型,深入研究微生物C、N与环境中C、N的关系,注重生态系统C、N耦合的同时,也要注重微生物与其他生物之间,特别是与植物之间的C、N耦合。
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| 关 键 词： | 土壤微生物 CO2浓度升高 N沉降 相互作用 碳氮耦合 |
| 收稿时间： | 2016/1/12 0:00:00 |
| 修稿时间： | 2016/7/14 0:00:00 |
Interaction Effects of Soil Microbial Carbon and Nitrogen: A Review |
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| Abstract: | Soil microorganism plays an important role in nutrient cycling, which can provide power for terrestrial ecosystems energy flow. Carbon(C) and nitrogen(N) element constitute the basic biology skeleton and biological energy metabolism, and the circulation of these two elements are related to the biological growth and stability of ecosystem. In terrestrial ecosystems, soil microbial C and N element have obvious interaction, and C and N concentration change in environment would lead to the change of the two elements in the soil, and resulting in the change of microbial community structure and biological function. This article, from the research points of elevated CO2 concentration, the adding of black carbon and N deposition increase, summed up the influence of changing environmental conditions on microbial C and N, analyzed the interaction of soil microbial C and N under the background of the realistic environment, discussed the inherent relation of microbial C and N, and provided some references for the microbial C and N coupling and the ecosystem C and N coupling. In addition, the authors put forward that in future study of the influence of climate change on soil microorganisms, multiple research models should be established according to the difference of region and space-time, and further relationship between microbial C, N and environmental C, N should be emphasized. The research on ecosystem C and N coupling, as well as the C and N coupling between microorganisms and other organisms, especially the plants, should be highlighted. |
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| Keywords: | soil microbes elevated CO2 concentration nitrogen deposition interaction carbon and nitrogen coupling |
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