CO2 Flux Estimation by Di®erent Regression Methods froman Alpine Meadow on the Qinghai-Tibetan Plateau
文献类型：期刊论文
| 作者 | Cao GM(曹广民) ; Li YN(李英年)
|
| 刊名 | advances in atmospheric sciences
 |
| 出版日期 | 2010 |
| 卷号 | 27期号:6页码:1372-1379 |
| 关键词 | CO2 emission static chamber technique nonlinearity underestimation Qinghai-Tibetan Plateau |
| 中文摘要 | co2 e²ux was estimated using di®erent regression methods in static chamber observation from an alpinemeadow on the qinghai-tibetan plateau. the co2 e²ux showed a seasonal pattern, with the maximun°ux occurring in the middle of july. the temperature sensitivity of co2 e²ux (q10) was 3.9, which wasat the high end of the range of global values. co2 emissions calculated by linear and nonlinear regressionwere signi¯cantly di®erent (p <0.05). compared with the linear regression, co2 emissions calculated by exponential regression and quadratic regression were 12.7% and 11.2% larger, respectively. however, therewere no signi¯cant di®erences in temperature sensitivity values estimated by the three methods. in theentire growing season, the co2 e²ux estimated by linear regression may be underestimated by up to 25%compared to the real co2 e²ux. consequently, great caution should be taken when using published °uxdata obtained by linear regression of static chamber observations to estimate the regional co2 °ux in alpinemeadows on the qinghai-tibetan plateau. |
| 学科主题 | 环境生物学 |
| 收录类别 | CSCD |
| 公开日期 | 2011-12-09 |
| 源URL | [http://ir.nwipb.ac.cn//handle/363003/1493]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | Cao GM,Li YN. CO2 Flux Estimation by Di®erent Regression Methods froman Alpine Meadow on the Qinghai-Tibetan Plateau[J]. advances in atmospheric sciences,2010,27(6):1372-1379. |
| APA | Cao GM,&Li YN.(2010).CO2 Flux Estimation by Di®erent Regression Methods froman Alpine Meadow on the Qinghai-Tibetan Plateau.advances in atmospheric sciences,27(6),1372-1379. |
| MLA | Cao GM,et al."CO2 Flux Estimation by Di®erent Regression Methods froman Alpine Meadow on the Qinghai-Tibetan Plateau".advances in atmospheric sciences 27.6(2010):1372-1379. |
入库方式： OAI收割
来源：西北高原生物研究所
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