Effect of climate change, CO2 trends, nitrogen addition, and land-cover   and management intensity changes on the carbon balance of European   grasslands

doi:10.1111/gcb.13050

CORC > 北京大学 > 城市与环境学院

	Effect of climate change, CO2 trends, nitrogen addition, and land-cover and management intensity changes on the carbon balance of European grasslands
	Chang, Jinfeng ; Ciais, Philippe ; Viovy, Nicolas ; Vuichard, Nicolas ; Herrero, Mario ; Havlik, Petr ; Wang, Xuhui ; Sultan, Benjamin ; Soussana, Jean-Francois
刊名	GLOBAL CHANGE BIOLOGY
	2016
关键词	carbon balance climate change European grassland land-cover change management intensity ORCHIDEE-GM GREENHOUSE-GAS MITIGATION SOIL MICROBIAL COMMUNITY PASTURE SIMULATION-MODEL LONG-TERM TERRESTRIAL ECOSYSTEMS PRIMARY PRODUCTIVITY TEMPERATE GRASSLAND ENRICHMENT FACE PLANT-GROWTH ELEVATED CO2
DOI	10.1111/gcb.13050
英文摘要	Several lines of evidence point to European managed grassland ecosystems being a sink of carbon. In this study, we apply ORCHIDEE-GM a process-based carbon cycle model that describes specific management practices of pastures and the dynamics of carbon cycling in response to changes in climatic and biogeochemical drivers. The model is used to simulate changes in the carbon balance [i.e., net biome production (NBP)] of European grasslands over 1991-2010 on a 25kmx25km grid. The modeled average trend in NBP is 1.8-2.0g Cm(-2)yr(-2) during the past two decades. Attribution of this trend suggests management intensity as the dominant driver explaining NBP trends in the model (36-43% of the trend due to all drivers). A major change in grassland management intensity has occurred across Europe resulting from reduced livestock numbers. This change has inadvertently' enhanced soil C sequestration and reduced N2O and CH4 emissions by 1.2-1.5 Gt CO2-equivalent, offsetting more than 7% of greenhouse gas emissions in the whole European agricultural sector during the period 1991-2010. Land-cover change, climate change and rising CO2 also make positive and moderate contributions to the NBP trend (between 24% and 31% of the trend due to all drivers). Changes in nitrogen addition (including fertilization and atmospheric deposition) are found to have only marginal net effect on NBP trends. However, this may not reflect reality because our model has only a very simple parameterization of nitrogen effects on photosynthesis. The sum of NBP trends from each driver is larger than the trend obtained when all drivers are varied together, leaving a residual - nonattributed - term (22-26% of the trend due to all drivers) indicating negative interactions between drivers.; European Union Seventh Framework Programme [266018, 603864]; SCI(E); ARTICLE; jinfeng.chang@locean-ipsl.upmc.fr; 1; 338-350; 22
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/438990]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Chang, Jinfeng,Ciais, Philippe,Viovy, Nicolas,et al. Effect of climate change, CO2 trends, nitrogen addition, and land-cover and management intensity changes on the carbon balance of European grasslands[J]. GLOBAL CHANGE BIOLOGY,2016.
APA	Chang, Jinfeng.,Ciais, Philippe.,Viovy, Nicolas.,Vuichard, Nicolas.,Herrero, Mario.,...&Soussana, Jean-Francois.(2016).Effect of climate change, CO2 trends, nitrogen addition, and land-cover and management intensity changes on the carbon balance of European grasslands.GLOBAL CHANGE BIOLOGY.
MLA	Chang, Jinfeng,et al."Effect of climate change, CO2 trends, nitrogen addition, and land-cover and management intensity changes on the carbon balance of European grasslands".GLOBAL CHANGE BIOLOGY (2016).