Integrating plant-soil interactions into global carbon cycle models

被引:198
作者
Ostle, Nicholas J. [1 ]
Smith, Pete [2 ]
Fisher, Rosie [3 ]
Woodward, F. Ian [3 ]
Fisher, Joshua B. [4 ]
Smith, Jo U. [2 ]
Galbraith, David [5 ,6 ]
Levy, Peter [5 ]
Meir, Patrick [6 ]
McNamara, Niall P. [1 ]
Bardgett, Richard D. [7 ]
机构
[1] Ctr Ecol & Hydrol, Lancaster Environm Ctr, Lancaster LA1 4AP, England
[2] Univ Aberdeen, Inst Biol & Environm Sci, Aberdeen BA24 3UU, Scotland
[3] Univ Sheffield, Dept Anim & Plant Sci, Sheffield S10 2TN, S Yorkshire, England
[4] Univ Oxford, Environm Change Inst, Sch Geog & Environm, Oxford OX1 3QY, England
[5] Ctr Ecol & Hydrol, Edinburgh EH26 0QB, Midlothian, Scotland
[6] Univ Edinburgh, Sch Geosci, Edinburgh EH8 9XP, Midlothian, Scotland
[7] Lancaster Environm Ctr, Soil & Ecosyst Ecol Grp, Lancaster LA1 4YQ, England
基金
英国自然环境研究理事会;
关键词
carbon; climate change; DGVM; feedbacks; GCM; models; PFT; plant; soil; DISSOLVED ORGANIC-CARBON; AMAZONIAN RAIN-FOREST; LAND-SURFACE MODEL; CLIMATE-CHANGE; TERRESTRIAL CARBON; NO-TILLAGE; LONG-TERM; STOMATAL CONDUCTANCE; VEGETATION DYNAMICS; NITROGEN LIMITATION;
D O I
10.1111/j.1365-2745.2009.01547.x
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
P>1. Plant-soil interactions play a central role in the biogeochemical carbon (C), nitrogen (N) and hydrological cycles. In the context of global environmental change, they are important both in modulating the impact of climate change and in regulating the feedback of greenhouse gas emissions (CO2, CH4 and N2O) to the climate system. 2. Dynamic global vegetation models (DGVMs) represent the most advanced tools available to predict the impacts of global change on terrestrial ecosystem functions and to examine their feedbacks to climate change. The accurate representation of plant-soil interactions in these models is crucial to improving predictions of the effects of climate change on a global scale. 3. In this paper, we describe the general structure of DGVMs that use plant functional types (PFTs) classifications as a means to integrate plant-soil interactions and illustrate how models have been developed to improve the simulation of: (a) soil carbon dynamics, (b) nitrogen cycling, (c) drought impacts and (d) vegetation dynamics. For each of these, we discuss some recent advances and identify knowledge gaps. 4. We identify three ongoing challenges, requiring collaboration between the global modelling community and process ecologists. First, the need for a critical evaluation of the representation of plant-soil processes in global models; second, the need to supply and integrate knowledge into global models; third, the testing of global model simulations against large-scale multifactor experiments and data from observatory gradients. 5. Synthesis. This paper reviews how plant-soil interactions are represented in DGVMs that use PFTs and illustrates some model developments. We also identify areas of ecological understanding and experimentation needed to reduce uncertainty in future carbon coupled climate change predictions.
引用
收藏
页码:851 / 863
页数:13
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