Design and use of a database of model parameters from elevated [CO2] experiments

Abstract This paper describes a new approach for linking experiments and models: a searchable database of model parameter values obtained directly from experiments. The experiments were carried out as part of a major European project studying the long-term effects of elevated [CO 2 ] on European forest species. To ensure that the information obtained from these experiments was fully utilised in the modelling component of the project, a database was used to store and synthesise experimental data. Key features of the database include: (1) Data is stored as model parameters rather than raw experimental data, which aids transfer of information from experiments to models. (2) Extensive meta-data is stored, which is crucial for correct interpretation of parameter values. (3) The database has a relational structure, which facilitates data retrieval. In this paper, we document the structure of the database. The structure is flexible and generic and could easily be adapted to suit other fields of research. We illustrate the use of the database with examples from the project.

[1]  Thomas J. Givnish,et al.  On the economy of plant form and function. , 1988 .

[2]  L. Hedges,et al.  Meta-analysis: Combining the results of independent experiments , 1993 .

[3]  Andrew D. Friend,et al.  A process-based, terrestrial biosphere model of ecosystem dynamics (Hybrid v3.0) , 1997 .

[4]  John V. Carlis,et al.  A Database for Agroecological Research Data: I. Data Model , 1999 .

[5]  S. Kellomäki,et al.  Model Computations on the Effects of Elevating Temperature and Atmospheric CO2 on the Regeneration of Scots Pine at the Timber Line in Finland , 1997 .

[6]  S. Kellomäki,et al.  Photosynthetic responses of Scots pine to elevated CO(2) and nitrogen supply: results of a branch-in-bag experiment. , 1997, Tree physiology.

[7]  Daneil Harmen. Walker,et al.  A knowledge-based systems approach to agroforestry research and extension. , 1994 .

[8]  P. Jarvis,et al.  European forests and global change : the likely impacts of rising CO[2] and temperature , 1999 .

[9]  Stan D. Wullschleger,et al.  Biochemical Limitations to Carbon Assimilation in C3 Plants—A Retrospective Analysis of the A/Ci Curves from 109 Species , 1993 .

[10]  R. McMurtrie,et al.  Long-Term Response of Nutrient-Limited Forests to CO"2 Enrichment; Equilibrium Behavior of Plant-Soil Models. , 1993, Ecological applications : a publication of the Ecological Society of America.

[11]  Christopher B. Field,et al.  photosynthesis--nitrogen relationship in wild plants , 1986 .

[12]  R. K. Dixon,et al.  Process modeling of forest growth responses to environmental stress , 1991 .

[13]  R. Ceulemans,et al.  Effects of elevated CO2 concentration on photosynthesis, respiration and carbohydrate status of coppice Populus hybrids , 1997 .

[14]  Darrel L. Williams,et al.  BOREAS in 1997: Experiment overview, scientific results, and future directions , 1997 .

[15]  Peter S. Curtis,et al.  A meta-analysis of elevated CO2 effects on woody plant mass, form, and physiology , 1998, Oecologia.

[16]  Jessica Gurevitch,et al.  Design and Analysis of Ecological Experiments , 1993 .

[17]  P. De Angelis,et al.  Effects of elevated (CO2) on photosynthesis in European forest species: a meta-analysis of model parameters , 1999 .

[18]  Yann Kerr,et al.  An overview of HAPEX-Sahel: a study in climate and desertification. , 1997 .

[19]  M. G. Ryan,et al.  Dark respiration of pines , 1994 .