Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14927 |
Evidence for large carbon sink and long residence time in semiarid forests based on 15 year flux and inventory records | |
Qubaja, Rafat1; Grunzweig, Jose M.2; Rotenberg, Eyal1; Yakir, Dan1 | |
2019-12-14 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Israel |
英文摘要 | The rate of change in atmospheric CO2 is significantly affected by the terrestrial carbon sink, but the size and spatial distribution of this sink, and the extent to which it can be enhanced to mitigate climate change are highly uncertain. We combined carbon stock (CS) and eddy covariance (EC) flux measurements that were collected over a period of 15 years (2001-2016) in a 55 year old 30 km(2) pine forest growing at the semiarid timberline (with no irrigating or fertilization). The objective was to constrain estimates of the carbon (C) storage potential in forest plantations in such semiarid lands, which cover 18% of the global land area. The forest accumulated 145-160 g C m(-2) year(-1) over the study period based on the EC and CS approaches, with a mean value of 152.5 +/- 30.1 g C m(-2) year(-1) indicating 20% uncertainty in carbon uptake estimates. Current total stocks are estimated at 7,943 +/- 323 g C/m(2) and 372 g N/m(2). Carbon accumulated mostly in the soil (71% and 29% for soil and standing biomass carbon, respectively) with long soil carbon turnover time (59 years). Regardless of unexpected disturbances beyond those already observed at the study site, the results support a considerable carbon sink potential in semiarid soils and forest plantations, and imply that afforestation of even 10% of semiarid land area under conditions similar to that of the study site, could sequester 0.4 Pg C/year over several decades. |
英文关键词 | carbon sequestration carbon sink carbon turnover time ecosystem productivity semiarid soil carbon |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000502471300001 |
WOS关键词 | SOIL ORGANIC-CARBON ; NET ECOSYSTEM EXCHANGE ; LAND-USE CHANGE ; TURNOVER TIMES ; USE EFFICIENCY ; PINE FORESTS ; CLIMATE ; SEQUESTRATION ; RESPIRATION ; STORAGE |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225328 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Weizmann Inst Sci, Dept Earth & Planetary Sci, IL-76100 Rehovot, Israel; 2.Hebrew Univ Jerusalem, Fac Agr Food & Environm, Rehovot, Israel |
推荐引用方式 GB/T 7714 | Qubaja, Rafat,Grunzweig, Jose M.,Rotenberg, Eyal,et al. Evidence for large carbon sink and long residence time in semiarid forests based on 15 year flux and inventory records[J]. GLOBAL CHANGE BIOLOGY,2019. |
APA | Qubaja, Rafat,Grunzweig, Jose M.,Rotenberg, Eyal,&Yakir, Dan.(2019).Evidence for large carbon sink and long residence time in semiarid forests based on 15 year flux and inventory records.GLOBAL CHANGE BIOLOGY. |
MLA | Qubaja, Rafat,et al."Evidence for large carbon sink and long residence time in semiarid forests based on 15 year flux and inventory records".GLOBAL CHANGE BIOLOGY (2019). |
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