Frontiers and challenges in soil respiration research: from measurements to model-data integration
Frontiers and challenges in soil respiration research: from measurements to model-data integration
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DOI：
10.1007/s10533-010-9462-1
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发表时间：
2011
期刊：
影响因子：
4
通讯作者：
R. Vargas;M. Carbone;M. Reichstein;D. Baldocchi
中科院分区：
文献类型：
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作者：
R. Vargas;M. Carbone;M. Reichstein;D. Baldocchi
土壤呼吸，即二氧化碳从土壤到大气的通量，是全球碳循环的一个主要通量。由于多种控制机制在不同的时间和空间尺度上相互作用，我们预测这种通量的能力仍然有限。然而，测量和分析的新进展为科学界提供了一个机会，以提高对调节土壤呼吸机制的理解。在本文中，我们讨论了土壤呼吸研究的几个最新进展，从实验测量和数据分析到模型数据集成的新考虑。我们关注土壤-植物-大气连续体在短期（如日）和中期（如季节年）时间尺度上的联系。首先，我们强调了识别土壤二氧化碳产生源的重要性，并强调了自动土壤呼吸测量和同位素方法的应用。其次，讨论了时间序列分析应用中质量保证和质量控制的必要性。第三，我们回顾了土壤呼吸研究中模型开发和模型数据集成的新兴观点。最后，我们呼吁在建模者和实验者之间加强相互作用，以提高我们对土壤呼吸和整体陆地碳循环的理解。
Soil respiration, the flux of CO2from the soil to the atmosphere represents a major flux in the global carbon cycle. Our ability to predict this flux remains limited because of multiple controlling mechanisms that interact over different temporal and spatial scales. However, new advances in measurement and analyses present an opportunity for the scientific community to improve the understanding of the mechanisms that regulate soil respiration. In this paper, we address several recent advancements in soil respiration research from experimental measurements and data analysis to new considerations for model-data integration. We focus on the links between the soil–plant-atmosphere continuum at short (i.e., diel) and medium (i.e., seasonal-years) temporal scales. First, we bring attention to the importance of identifying sources of soil CO2production and highlight the application of automated soil respiration measurements and isotope approaches. Second, we discuss the need of quality assurance and quality control for applications in time series analysis. Third, we review perspectives about emergent ideas for modeling development and model-data integration for soil respiration research. Finally, we call for stronger interactions between modelers and experimentalists as a way to improve our understanding of soil respiration and overall terrestrial carbon cycling.