PARTITIONING SOURCES OF ECOSYSTEM AND SOIL RESPIRATION IN AN ALPINE MEADOW OF TIBET PLATEAU USING REGRESSION METHOD
文献类型：SCI/SSCI论文
| 作者 | Fu G. ; Zhang X. Z. ; Zhou Y. T. ; Yu C. Q. ; Shen Z. X. |
| 发表日期 | 2014 |
| 关键词 | exponential relationship linear relationship microbial respiration plant respiration Tibetan Plateau microbial biomass organic-carbon inner-mongolia co2 exchange steppe efflux fluxes china |
| 英文摘要 | Partitioning sources of ecosystem and soil respiration (R-eco and R-s) is important for understanding how climate change affects carbon cycling. Plant and microbial biomass analyses and daytime measurements of R-eco and R-s were performed for 25 plots in an alpine meadow at elevation 4313 m on the Tibetan Plateau. Plant and microbial biomass were determined by harvesting method and the chloroform fumigation-extraction method, respectively. Respiration fluxes were measured by an automated CO2 flux system (LI-8100, LI-COR Biosciences, Lincoln, NE, USA). Soil respiration can be estimated by a linear or exponential relationship between R-eco and aboveground plant biomass (AGB). Microbial respiration (R-m) can be estimated by a linear or exponential relationship between R-s and belowground plant biomass (BGB) or by a multiple relationship between R-eco and AGB and BGB. Soil respiration (or R-m) is respiration flux when AGB (or BGB) is extrapolated to zero for the linear and exponential regression methods. Similarly, R-m is respiration flux when both AGB and BGB are zero for the multiple regression method. Our findings suggest that the exponential regression method to partition sources of R-eco and R-s may be more appropriate compared to other methods for this alpine meadow of Tibet. |
| 出处 | Polish Journal of Ecology |
| 卷 | 62 |
| 期 | 1 |
| 页 | 17-24 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1505-2249 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/29887]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Fu G.,Zhang X. Z.,Zhou Y. T.,et al. PARTITIONING SOURCES OF ECOSYSTEM AND SOIL RESPIRATION IN AN ALPINE MEADOW OF TIBET PLATEAU USING REGRESSION METHOD. 2014. |
入库方式： OAI收割
来源：地理科学与资源研究所
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