Estimated carbon residence times in three forest ecosystems of eastern China: Applications of probabilistic inversion
文献类型：SCI/SSCI论文
| 作者 | Zhang L.; Zhang L. |
| 发表日期 | 2010 |
| 关键词 | soil organic-matter eddy covariance measurements model-data synthesis parameter-estimation data assimilation temperate forest duke forest flux data turnover sequestration |
| 英文摘要 | Carbon residence time is one critical parameter for predicting future land carbon sink dynamics but has not been well quantified for many plant and soil pools. This study applied a probabilistic inverse analysis of multiple observations to estimate mean residence times of carbon among three forest ecosystems in eastern China. Three assimilation experiments were conducted with either net ecosystem exchange data from eddy-flux measurements or six biometric and soil data (i.e., foliage biomass, fine root biomass, woody biomass, litterfall, soil organic carbon, and soil respiration) or all data to evaluate their relative effectiveness on estimation of carbon residence times of different pools in a terrestrial ecosystem model. Estimated mean residence times of carbon ranged from 2 to 10 months for metabolic litter and microbial biomass pools, from 1 to 3 years for foliage, fine root biomass, and structural litter pools, and from 17 to 1361 years for woody biomass, slow and passive soil organic matter pools at three forest sites. The residence times of carbon were longer for leaf, litter and microbes pools but shorter for fine root and wood pools in the young evergreen coniferous plantation at Qianyanzhou site than the two mature mixed forests at Changbaishan and Dinghushan sites. Carbon residence times were well constrained for three plant pools and slow soil organic matter by biometric and soil data, whereas residence times for metabolic and structural litter, and microbial biomass pools were constrained by daily net ecosystem exchange data. Overall, our study demonstrated that biometric, soil and net ecosystem exchange data are complementary in constraining mean residence times of an ecosystem model. |
| 出处 | Journal of Geophysical Research-Biogeosciences |
| 卷 | 115 |
| 收录类别 | SCI |
| ISSN号 | 0148-0227 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/22402]  |
| 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 | Zhang L.,Zhang L.. Estimated carbon residence times in three forest ecosystems of eastern China: Applications of probabilistic inversion. 2010. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。