全球变化野外控制试验及其在土壤微生物生态学研究中的应用

发布时间：2018-05-22 14:44

本文选题：全球变化 + 野外控制试验　；参考：《应用生态学报》2016年05期

【摘要】：全球变化是近几十年世界广泛关注的热点之一.土地利用变化和化石能源消耗已引起如温室气体增多、气温升高、降水格局改变等多种形式的变化.这些变化对整个生态系统过程,特别是陆地生态系统碳氮循环过程有着深远影响.自20世纪70年代以来,世界各地已开展大量野外控制试验用以模拟单因子和多因子气候变化的影响,这些研究对解释生态系统响应和适应全球变化的内在机制提供了重要的基础.本文梳理了全球变化控制试验的发展历程,介绍了不同因子模拟控制试验的研究概况及不足之处,重点阐述CO_2倍增、增温、降水和模拟氮沉降等全球变化控制试验在土壤微生物生态学研究中的应用,探析土壤微生物及其介导的生态学过程对全球变化的响应和反馈,并对未来野外控制试验需关注的问题和研究方向进行了展望,为认识气候变化对地下生态系统的影响提供参考.
[Abstract]:Global change is one of the hot spots in the world in recent decades. Land use change and fossil energy consumption have caused many kinds of changes, such as the increase of greenhouse gas, the increase of temperature, the change of precipitation pattern and so on. These changes have a profound effect on the whole ecosystem process, especially the carbon and nitrogen cycle in terrestrial ecosystem. Since the 1970s, a large number of field control experiments have been conducted around the world to simulate the effects of single-factor and multi-factor climate change. These studies provide an important basis for explaining the underlying mechanisms of ecosystem response and adaptation to global change. This paper reviews the development of the global change control test, introduces the general situation and shortcomings of the simulation control test of different factors, and focuses on the CO_2 multiplication and temperature increase. The application of global change control experiments such as precipitation and simulated nitrogen deposition in the study of soil microbial ecology, and the response and feedback of soil microorganisms and their mediated ecological processes to global change. The problems and research directions of field control experiments in the future are prospected in order to provide a reference for understanding the impacts of climate change on the underground ecosystem.
【作者单位】：中国科学院生态环境研究中心城市与区域生态国家重点实验室;中国科学院大学;
【基金】：科技部全球变化重大研究计划项目(2013CB956300) 国家自然科学基金项目(41371265)资助~~
【分类号】：S154.3

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