Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1038/s41598-020-61239-0 |
| Constraining size-dependence of vegetation respiration rates | |
| Ito, Akihiko | |
| 通讯作者 | Ito, A |
| 来源期刊 | SCIENTIFIC REPORTS
 |
| ISSN | 2045-2322 |
| 出版年 | 2020 |
| 卷号 | 10期号:1 |
| 英文摘要 | Plant autotrophic respiration is responsible for the atmospheric release of about half of all photosynthetically fixed carbon and responds to climate change in a manner different from photosynthesis. The plant mass-specific respiration rate (r(A)), a key parameter of the carbon cycle, has not been sufficiently constrained by observations at ecosystem or broader scales. In this study, a meta-analysis revealed a global relationship with vegetation biomass that explains 67-77% of the variance of r(A) across plant ages and biomes. r(A) decreased with increasing vegetation biomass such that annual r(A) was two orders of magnitude larger in fens and deserts than in mature forests. This relationship can be closely approximated by a power-law equation with a universal exponent and yields an estimated global autotrophic respiration rate of 64 +/- 12 Pg C yr(-1). This finding, which is phenomenologically and theoretically consistent with metabolic scaling and plant demography, provides a way to constrain the carbon-cycle components of Earth system models. |
| 类型 | Article |
| 语种 | 英语 |
| 开放获取类型 | Green Published, gold |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000563340000019 |
| WOS关键词 | PLANT RESPIRATION ; THERMAL-ACCLIMATION ; LEAF RESPIRATION ; CARBON ; NITROGEN ; CLIMATE ; REPRESENTATION ; PRODUCTIVITY ; METABOLISM ; DATABASE |
| WOS类目 | Multidisciplinary Sciences |
| WOS研究方向 | Science & Technology - Other Topics |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/325854 |
| 作者单位 | [Ito, Akihiko] Natl Inst Environm Studies, 16-2 Onogawa, Tsukuba, Ibaraki 3058506, Japan; [Ito, Akihiko] Japan Agcy Marine Earth Sci & Technol, 3173-25 Showa Machi, Kanazawa, Ishikawa 2360001, Japan |
| 推荐引用方式 GB/T 7714 | Ito, Akihiko. Constraining size-dependence of vegetation respiration rates[J],2020,10(1). |
| APA | Ito, Akihiko.(2020).Constraining size-dependence of vegetation respiration rates.SCIENTIFIC REPORTS,10(1). |
| MLA | Ito, Akihiko."Constraining size-dependence of vegetation respiration rates".SCIENTIFIC REPORTS 10.1(2020). |
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