气候变化领域集成服务门户(CCPortal): Regional assessment and uncertainty analysis of carbon and nitrogen balances at cropland scale using the ecosystem model LandscapeDNDC

CCPortal

DOI	10.5194/bg-21-1563-2024
	Regional assessment and uncertainty analysis of carbon and nitrogen balances at cropland scale using the ecosystem model LandscapeDNDC
	Sifounakis, Odysseas; Haas, Edwin; Butterbach-Bahl, Klaus; Papadopoulou, Maria P.
发表日期	2024
ISSN	1726-4170
EISSN	1726-4189
起始页码	21
结束页码	6
卷号	21 期号:6
英文摘要	The assessment of cropland carbon and nitrogen (C and N) balances plays a key role in identifying cost-effective mitigation measures to combat climate change and reduce environmental pollution. In this paper, a biogeochemical modelling approach is adopted to assess all C and N fluxes in a regional cropland ecosystem of Thessaly, Greece. Additionally, the estimation and quantification of the modelling uncertainty in the regional inventory are realized through the propagation of parameter distributions through the model, leading to result distributions for modelling estimations. The model was applied to a regional dataset of approximately 1000 polygons, deploying model initializations and crop rotations for the five major crop cultivations and for a time span of 8 years. The full statistical analysis on modelling results (including the uncertainty ranges given as +/- values) yields for the C balance carbon input fluxes into the soil of 12.4 +/- 1.4 t C ha - 1 yr - 1 and output fluxes of 11.9 +/- 1.3 t C ha - 1 yr - 1 , with a resulting average carbon sequestration of 0.5 +/- 0.3 t C ha - 1 yr - 1 . The averaged N influx was 212.3 +/- 9.1 kg N ha - 1 yr - 1 , while outfluxes of 198.3 +/- 11.2 kg N ha - 1 yr - 1 were estimated on average. The net N accumulation into the soil nitrogen pools was estimated to be 14.0 +/- 2.1 kg N ha - 1 yr - 1 . The N outflux consists of gaseous N fluxes composed of N 2 O emissions of 2.6 +/- 0.8 kg N 2 O-N ha - 1 yr - 1 , NO emissions of 3.2 +/- 1.5 kg NO-N ha - 1 yr - 1 , N 2 emissions of 15.5 +/- 7.0 kg N 2 -N ha - 1 yr - 1 and NH 3 emissions of 34.0 +/- 6.7 kg NH 3 -N ha - 1 yr - 1 , as well as aquatic N fluxes (only nitrate leaching into surface waters) of 14.1 +/- 4.5 kg NO 3 -N ha - 1 yr - 1 and N fluxes of N removed from the fields in yields, straw and feed of 128.8 +/- 8.5 kg N ha - 1 yr - 1 .
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology
WOS类目	Ecology ; Geosciences, Multidisciplinary
WOS记录号	WOS:001191251100001
来源期刊	BIOGEOSCIENCES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/291549
作者单位	National Technical University of Athens; Helmholtz Association; Karlsruhe Institute of Technology; Aarhus University
推荐引用方式 GB/T 7714	Sifounakis, Odysseas,Haas, Edwin,Butterbach-Bahl, Klaus,et al. Regional assessment and uncertainty analysis of carbon and nitrogen balances at cropland scale using the ecosystem model LandscapeDNDC[J],2024,21(6).
APA	Sifounakis, Odysseas,Haas, Edwin,Butterbach-Bahl, Klaus,&Papadopoulou, Maria P..(2024).Regional assessment and uncertainty analysis of carbon and nitrogen balances at cropland scale using the ecosystem model LandscapeDNDC.BIOGEOSCIENCES,21(6).
MLA	Sifounakis, Odysseas,et al."Regional assessment and uncertainty analysis of carbon and nitrogen balances at cropland scale using the ecosystem model LandscapeDNDC".BIOGEOSCIENCES 21.6(2024).