Knowledge Management System of Northwest Institute of Plateau Biology, CAS
Effects of temperature, glucose and inorganic nitrogen inputs on carbon mineralization in a Tibetan alpine meadow soil | |
Song, Minghua1,2; Jiang, Jing1,3; Cao, Guangmin4; Xu, Xingliang1 | |
2010-11-01 | |
发表期刊 | EUROPEAN JOURNAL OF SOIL BIOLOGY |
ISSN | 1164-5563 |
卷号 | 46期号:6页码:375-380 |
文章类型 | Article |
摘要 | High levels of available nitrogen (N) and carbon (C) have the potential to increase soil N and C mineralization We hypothesized that with an external labile C or N supply alpine meadow soil will have a significantly higher C mineralization potential and that temperature sensitivity of C mineralization will increase To test the hypotheses an incubation experiment was conducted with two doses of N or C supply at temperature of 5 15 and 25 C Results showed external N supply had no significant effect on CO(2) emission However external C supply increased CO(2) emission Temperature coefficient (Q(10)) ranged from 113 to 1 29 Significantly higher values were measured with C than with N addition and control treatment Temperature dependence of C mineralization was well-represented by exponential functions Under the control CO(2) efflux rate was 425 g CO(2)-Cm(-2) year(-1) comparable to the in situ measurement of 422 g CO(2)-Cm(-2) year(-1) We demonstrated if N is disregarded microbial decomposition is primarily limited by lack of labile C It is predicted that labile C supply would further increase CO(2) efflux from the alpine meadow soil (C) 2010 Elsevier Masson SAS All rights reserved; High levels of available nitrogen (N) and carbon (C) have the potential to increase soil N and C mineralization We hypothesized that with an external labile C or N supply alpine meadow soil will have a significantly higher C mineralization potential and that temperature sensitivity of C mineralization will increase To test the hypotheses an incubation experiment was conducted with two doses of N or C supply at temperature of 5 15 and 25 C Results showed external N supply had no significant effect on CO(2) emission However external C supply increased CO(2) emission Temperature coefficient (Q(10)) ranged from 113 to 1 29 Significantly higher values were measured with C than with N addition and control treatment Temperature dependence of C mineralization was well-represented by exponential functions Under the control CO(2) efflux rate was 425 g CO(2)-Cm(-2) year(-1) comparable to the in situ measurement of 422 g CO(2)-Cm(-2) year(-1) We demonstrated if N is disregarded microbial decomposition is primarily limited by lack of labile C It is predicted that labile C supply would further increase CO(2) efflux from the alpine meadow soil (C) 2010 Elsevier Masson SAS All rights reserved |
关键词 | Soc Mineralization q(10) c Or n Amendment Soil Heterotrophic Respiration Tibetan Plateau |
WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
关键词[WOS] | WATER-CONTENT ; ORGANIC-CARBON ; ALASKAN TUNDRA ; BOREAL FOREST ; ARCTIC TUNDRA ; CO2 EXCHANGE ; RESPIRATION ; DECOMPOSITION ; ECOSYSTEM ; FLUXES |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
WOS类目 | Ecology ; Soil Science |
WOS记录号 | WOS:000284991500005 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://210.75.249.4/handle/363003/1634 |
专题 | 中国科学院西北高原生物研究所 |
作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 4.Chinese Acad Sci, NW Inst Plateau Biol, Xining 810008, Peoples R China |
推荐引用方式 GB/T 7714 | Song, Minghua,Jiang, Jing,Cao, Guangmin,et al. Effects of temperature, glucose and inorganic nitrogen inputs on carbon mineralization in a Tibetan alpine meadow soil[J]. EUROPEAN JOURNAL OF SOIL BIOLOGY,2010,46(6):375-380. |
APA | Song, Minghua,Jiang, Jing,Cao, Guangmin,&Xu, Xingliang.(2010).Effects of temperature, glucose and inorganic nitrogen inputs on carbon mineralization in a Tibetan alpine meadow soil.EUROPEAN JOURNAL OF SOIL BIOLOGY,46(6),375-380. |
MLA | Song, Minghua,et al."Effects of temperature, glucose and inorganic nitrogen inputs on carbon mineralization in a Tibetan alpine meadow soil".EUROPEAN JOURNAL OF SOIL BIOLOGY 46.6(2010):375-380. |
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