BibTex format
@article{Pan:1998:10.1007/s004420050462,
author = {Pan, Y and Melillo, JM and McGuire, AD and Kicklighter, DW and Pitelka, LF and Hibbard, K and Pierce, LL and Running, SW and Ojima, DS and Parton, WJ and Schimel, DS and Borchers, J and Neilson, R and Fisher, HH and Kittel, TGF and Rossenbloom, NA and Fox, S and Haxeltine, A and Prentice, IC and Sitch, S and Janetos, A and McKeown, R and Nemani, R and Painter, T and Rizzo, B and Smith, T and Woodward, FI},
doi = {10.1007/s004420050462},
journal = {Oecologia},
pages = {389--404},
title = {Modeled responses of terrestrial ecosystems to elevated atmospheric CO<inf>2</inf>: A comparison of simulations by the biogeochemistry models of the Vegetation/Ecosystem Modeling and Analysis Project (VEMAP)},
url = {http://dx.doi.org/10.1007/s004420050462},
volume = {114},
year = {1998}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - Although there is a great deal of information concerning responses to increases in atmospheric CO2 at the tissue and plant levels, there are substantially fewer studies that have investigated ecosystem-level responses in the context of integrated carbon, water, and nutrient cycles. Because our understanding of ecosystem responses to elevated CO2 is incomplete, modeling is a tool that can be used to investigate the role of plant and soil interactions in the response of terrestrial ecosystems to elevated CO2. In this study, we analyze the responses of net primary production (NPP) to doubled CO2 from 355 to 710 ppmv among three biogeochemistry models in the Vegetation/Ecosystem Modeling and Analysis Project (VEMAP): BIOME-BGC (BioGeochemical Cycles), Century, and the Terrestrial Ecosystem Model (TEM). For the conterminous United States, doubled atmospheric CO2 causes NPP to increase by 5% in Century, 8% in TEM, and 11% in BIOME-BGC. Multiple regression analyses between the NPP response to doubled CO2 and the mean annual temperature and annual precipitation of biomes or grid cells indicate that there are negative relationships between precipitation and the response of NPP to doubled CO2 for all three models. In contrast, there are different relationships between temperature and the response of NPP to doubled CO2 for the three models: there is a negative relationship in the responses of BIOME-BGC, no relationship in the responses of Century, and a positive relationship in the responses of TEM. In BIOME-BGC, the NPP response to doubled CO2 is controlled by the change in transpiration associated with reduced leaf conductance to water vapor. This change affects soil water, then leaf area development and, finally, NPP. In Century, the response of NPP to doubled CO2 is controlled by changes in decomposition rates associated with increased soil moisture that results from reduced evapotranspiration. This change affects nitrogen availability for plants, which influences NPP. In
AU - Pan,Y
AU - Melillo,JM
AU - McGuire,AD
AU - Kicklighter,DW
AU - Pitelka,LF
AU - Hibbard,K
AU - Pierce,LL
AU - Running,SW
AU - Ojima,DS
AU - Parton,WJ
AU - Schimel,DS
AU - Borchers,J
AU - Neilson,R
AU - Fisher,HH
AU - Kittel,TGF
AU - Rossenbloom,NA
AU - Fox,S
AU - Haxeltine,A
AU - Prentice,IC
AU - Sitch,S
AU - Janetos,A
AU - McKeown,R
AU - Nemani,R
AU - Painter,T
AU - Rizzo,B
AU - Smith,T
AU - Woodward,FI
DO - 10.1007/s004420050462
EP - 404
PY - 1998///
SN - 0029-8549
SP - 389
TI - Modeled responses of terrestrial ecosystems to elevated atmospheric CO<inf>2</inf>: A comparison of simulations by the biogeochemistry models of the Vegetation/Ecosystem Modeling and Analysis Project (VEMAP)
T2 - Oecologia
UR - http://dx.doi.org/10.1007/s004420050462
VL - 114
ER -