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SIMULATING N2O EMISSION FROM KOBRESIA HUMILIS SERG. ALPINE MEADOW ON TIBETAN PLATEAU WITH THE DNDC MODEL
Du, Yangong1,2; Cui, Xiaoyong1; Cao, Guangmin3; Zhao, Xudong3; Yang, Guixia2
2011
Source PublicationPOLISH JOURNAL OF ECOLOGY
ISSN1505-2249
Volume59Issue:3Pages:443-453
SubtypeArticle
AbstractField measured N2O emissions in two years were used to parameterize and validate a process based model,DNDC,for an alpine Kobresia humilis meadow on the Tibetan Plateau in China.Although this model failed to capture; Field measured N2O emissions in two years were used to parameterize and validate a process-based model, DNDC, for an alpine Kobresia humilis meadow on the Tibetan Plateau in China. Although this model failed to capture the N2O fluxes in some time periods in the spring or autumn, the modeled results showed overall a good performance in terms of simulating the seasonal variation of N2O fluxes and quantifying the annual total emissions. The relative deviation on the annual basis was about 12.4% and -15.9% for the two years, respectively. The modeled data showed that nitrification contributed about 53% of total N2O production, slightly higher than denitrification. The modeled fluxes were sensitive to soil organic content (SOC), pH, and temperature, but less sensitive to variation of precipitation, soil ammonium and nitrate contents. Further modifications for the model were suggested to focus on the process of soil freezing and thawing as well as the crop growth sub-model that would improve the model's performance for quantifying N2O emission from the alpine meadow.
KeywordDndc Model N2o Emission Nitrification Alpine Meadow
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS KeywordNITROUS-OXIDE EMISSIONS ; PROCESS-ORIENTED MODEL ; NITRIFIER DENITRIFICATION ; RAINFALL EVENTS ; GRAZED PASTURE ; CLIMATE-CHANGE ; CO2 EMISSIONS ; NO EMISSIONS ; FOREST SOILS ; LAND-USE
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEcology
WOS IDWOS:000294983200002
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://210.75.249.4/handle/363003/2218
Collection中国科学院西北高原生物研究所
Affiliation1.Chinese Acad Sci, Grad Univ, Coll Resource & Environm, Beijing 100039, Peoples R China
2.Minist Agr, Key Lab Resources Remote Sensing & Digital Agr, Beijing 100081, Peoples R China
3.Chinese Acad Sci, NW Inst Plateau Biol, Xining 810001, Qinghai, Peoples R China
Recommended Citation
GB/T 7714
Du, Yangong,Cui, Xiaoyong,Cao, Guangmin,et al. SIMULATING N2O EMISSION FROM KOBRESIA HUMILIS SERG. ALPINE MEADOW ON TIBETAN PLATEAU WITH THE DNDC MODEL[J]. POLISH JOURNAL OF ECOLOGY,2011,59(3):443-453.
APA Du, Yangong,Cui, Xiaoyong,Cao, Guangmin,Zhao, Xudong,&Yang, Guixia.(2011).SIMULATING N2O EMISSION FROM KOBRESIA HUMILIS SERG. ALPINE MEADOW ON TIBETAN PLATEAU WITH THE DNDC MODEL.POLISH JOURNAL OF ECOLOGY,59(3),443-453.
MLA Du, Yangong,et al."SIMULATING N2O EMISSION FROM KOBRESIA HUMILIS SERG. ALPINE MEADOW ON TIBETAN PLATEAU WITH THE DNDC MODEL".POLISH JOURNAL OF ECOLOGY 59.3(2011):443-453.
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