摘要
生态系统呼吸是草地生态系统碳交换过程的主要环节,也是草地生态系统中有机碳以CO2形式排放到大气中的主要途径。本文通过分析和总结已有研究的相关成果,探讨了国内外生态系统呼吸的不同测定方法以及影响草地生态系统呼吸的主要因素,揭示了现有研究中普遍存在的单一化研究方法以及单因素试验研究手段对生态系统呼吸研究结果产生不确定性。为准确估算生态系统呼吸值,建议以多因素交互试验作为主要研究手段,并采取不同测定方法,长期开展野外观测研究。
Ecosystem respiration is the main process in the carbon exchange in grassland ecosystems and the main way for organic carbon emission from grassland ecosystems to the atmosphere in the form of CO2.Based on analysis and summarization of existing research results,this paper discussed the different measurement methods of ecosystem respiration at home and abroad,analyzed the main factors that affect the respiration of grassland ecosystems,and uncovered uncertainties in the research outcomes of ecosystem respiration caused by single factorial study design and singular measurement methods that were commonly seen in the previous reports.In order to accurately estimate the ecosystem respiration value,it is suggested that multi factor interaction test should be used as the main research method,and different measurement methods should be adopted to carry out field observation for a long time.
作者
边巴普赤
斯确多吉
南吉
尕藏加
刘培培
汪诗平
Bianba Puchi;Tsechoe Dorji;Nan Ji;Skalsang Gyal;LIU Peipei;WANG Shiping(Key Laboratory of Alpine Ecology,Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100101;University of Chinese Academy of Sciences,Beijing 100049;Tibet University-Naqu Ecological Observation and Research Station,Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Naqu Tibet 852000;CAS Center for Excellence in Tibetan Plateau Earth Sciences,Beijing 100101;Tibet University,Lhasa Tibet 850000)
出处
《现代农业科技》
2021年第11期219-224,共6页
Modern Agricultural Science and Technology
基金
国家自然基金委面上项目(31770524)
青藏高原人类生存环境历史数据集成与状态评估(2019Q ZKK0608)
西藏自治区噶尔县沙化土地封禁保护补偿试点项目生态环境监测
关键词
生态系统呼吸
研究方法
影响因素
ecosystem respiration
research method
influencing factor
