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SOIL RESPIRATION IN RESPONSE TO SHORT-TERM NITROGEN ADDITION IN AN ALPINE STEPPE IN NORTHERN TIBET
Sun, Jian1; Cheng, Genwei2; Fan, Jihui2
Corresponding AuthorCheng, Genwei
2013
Source PublicationPOLISH JOURNAL OF ECOLOGY
ISSN1505-2249
Volume61Issue:4Pages:655-663
SubtypeArticle
AbstractNorthern Tibet has a vital role in global ecological security. This study determined the effect of environmental factors on the soil respiration of an alpine steppe. Short-term nitrogen addition (2 g N m(-2) yr(-1)) was performed in an alpine steppe in Northern Tibet in June, 2011. Soil respiration was observed during the growing season of 2011 using LI-8100. The results were as follows. First, soil respiration had clear seasonal patterns, and significant differences existed between the control (CK) and nitrogen addition (ND) treatments (P = 0.004). Second, soil respiration was more sensitive to soil temperature (R-2 = 0.988, ND; R-2 = 0.05, CK) than soil moisture (R-2 = 0.0003, ND; R-2 = 0.038, CK), and the relationship between soil temperature and soil respiration in ND treatment was more significant than that in CK. Third, the relationships between soil chemical properties and root biomass in CK were greater than that in ND plots, especially the relationship of root biomass with the available nitrogen and nitrate nitrogen. These results indicated that differences among geographical conditions resulted in different phenomena of gas emissions, immature soil, and extremely short plant growing time, which may all be remarkably influenced in an alpine steppe.
KeywordNitrogen Addition Soil Respiration Alpine Steppe Northern Tibet
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
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WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordWATER-CONTENT ; DESERT ECOSYSTEMS ; TEMPERATURE ; CARBON ; CHINA ; DEPOSITION ; FORESTS ; FERTILIZATION ; REGULATORS ; EMISSIONS
Language英语
Quartile4区
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WOS SubjectEcology
WOS IDWOS:000328665800003
Funding OrganizationKnowledge Innovation Program of the Chinese Academy of Sciences(KZCX2-XB3-08) ; National Natural Science Foundation of China(41001177)
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Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/8315
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources, Key Lab Ecosyst Network Observat & Modelling, Chinese Ecosyst Res Network,Synth Res Ctr, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazard & Environm, Chengdu 610041, Peoples R China
Recommended Citation
GB/T 7714
Sun, Jian,Cheng, Genwei,Fan, Jihui. SOIL RESPIRATION IN RESPONSE TO SHORT-TERM NITROGEN ADDITION IN AN ALPINE STEPPE IN NORTHERN TIBET[J]. POLISH JOURNAL OF ECOLOGY,2013,61(4):655-663.
APA Sun, Jian,Cheng, Genwei,&Fan, Jihui.(2013).SOIL RESPIRATION IN RESPONSE TO SHORT-TERM NITROGEN ADDITION IN AN ALPINE STEPPE IN NORTHERN TIBET.POLISH JOURNAL OF ECOLOGY,61(4),655-663.
MLA Sun, Jian,et al."SOIL RESPIRATION IN RESPONSE TO SHORT-TERM NITROGEN ADDITION IN AN ALPINE STEPPE IN NORTHERN TIBET".POLISH JOURNAL OF ECOLOGY 61.4(2013):655-663.
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