globalchange  > 气候变化事实与影响
CSCD记录号: CSCD:6119306
论文题名:
增温影响陆地生态系统呼吸的研究进展
其他题名: Advances in Warming Effect on Ecosystem Respiration in Terrestrial Ecosystems
作者: 朱先进; 张函奇; 殷红
刊名: 沈阳农业大学学报
ISSN: 1000-1700
出版年: 2017
卷: 48, 期:5, 页码:385-391
语种: 中文
中文关键词: 碳循环 ; 生态系统呼吸 ; 气候变化 ; 陆地生态系统 ; 增温
英文关键词: carbon cycle ; ecosystem respiration ; climate change ; terrestrial ecosystem ; warming
WOS学科分类: AGRICULTURE MULTIDISCIPLINARY
WOS研究方向: Agriculture
中文摘要: 生态系统呼吸是陆地生态系统向大气释放CO_2的最大分量,与温度升高存在着复杂的相互作用。揭示温度升高对生态系统呼吸的影响有助于阐明陆地生态系统碳循环与气候间的反馈作用。在总结生态系统呼吸定义及观测方法的基础上,重点就温度升高影响陆地生态系统呼吸的研究结果进行综述,从研究对象、增温方式、增温梯度、增温幅度、影响效果及影响机理等方面进行归纳。结果表明,已有研究主要以极地、青藏高原等地的陆地生态系统为研究对象,增温手段以开顶箱(OTCs)式增温为主,并逐渐向开放式红外增温扩展。增温梯度大多设置增温和对照两个梯度且增温幅度多数介于1~3℃。已有研究发现增温显著促进了多数站点的生态系统呼吸,但在青藏高原等水分限制的陆地生态系统,增温可能导致生态系统呼吸没有发生显著变化甚至显著降低。增温影响陆地生态系统呼吸的机理大多从生态系统呼吸的温度敏感性及生态系统呼吸组分所占比例的变化等着手来探讨。进而提出未来需要重视箱式法在陆地生态系统呼吸及其组分观测中的作用,基于陆地生态系统呼吸组分的变化阐明生态系统呼吸对外界环境变化的响应,并积极开展梯度增温对农田生态系统呼吸的影响研究。
英文摘要: Ecosystem respiration, the largest CO_2 flux from terrestrial ecosystems to the atmosphere, has complex interactions with the global warming. Analyzing warming effect on ecosystem respiration would be helpful for unraveling the feedback between ecosystem carbon cycle in terrestrial ecosystems and climate. After integrating the definition of ecosystem respiration and its measurements, we summarized the advances in the response of ecosystem respiration to global warming from the aspects of research objects, warming methods, warming gradients, warming magnitude, warming effects and its underlying mechanisms. The results showed that the previous researches targeted on the terrestrial ecosystems in Arctic and Qinghai -Tibet Plateau. The warming was achieved primarily through open-top chamber (OTCs) but tended to expand to the infrared heating warming. The warming gradients were set to two treatments with warming and control, whose warming magnitude ranged from 1-3℃. In most terrestrial ecosystems, warming significantly increases ecosystem respiration, while warming has no significant effect on ecosystem respiration or decreases ecosystem respiration in terrestrial ecosystems of Qinghai -Tibet Plateau, where water is limited. The mechanisms underlying warming effect on terrestrial ecosystem respiration were illuminated from the temperature sensitivity or the variations of ecosystem respiration components. Future studies should thus be performed to reveal the responses of ecosystem respiration to the varying environments by emphasizing the chamber method in measuring ecosystem respiration and its components. In addition, the effect of gradient warming on ecosystem respiration in cropland should also be strengthened.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/152878
Appears in Collections:气候变化事实与影响

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作者单位: 沈阳农业大学农学院, 沈阳, 辽宁 110161, 中国

Recommended Citation:
朱先进,张函奇,殷红. 增温影响陆地生态系统呼吸的研究进展[J]. 沈阳农业大学学报,2017-01-01,48(5):385-391
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