The seasonal and successional variations of carbon release from biological soil crust-covered soil
文献类型：期刊论文
| 作者 | Zhao, Yang1,2; Zhang, Zhishan1; Hu, Yigang1; Chen, Yongle1 |
| 刊名 | JOURNAL OF ARID ENVIRONMENTS
 |
| 出版日期 | 2016-04-01 |
| 卷号 | 127页码:148-153 |
| 关键词 | Accumulative rainfall amount Late succession stage Moss crust Soil respiration Tengger Desert |
| ISSN号 | 0140-1963 |
| DOI | 10.1016/j.jaridenv.2015.11.012 |
| 通讯作者 | Zhao, Yang(zhaoyang66@lzb.ac.cn) |
| 英文摘要 | Biological soil crusts play key roles in global carbon cycles in terms of carbon exchange between pedosphere and the atmosphere, yet few explorations have been conducted regarding how seasonal variations and successional patterns of the crusts influence C release in temperate desert ecosystems. The carbon release of four soil cover types (mobile dune sand, algae-, mixed- and moss-crusted) was measured in PVC mesocosms both before, in relatively dry conditions, and immediately after natural rainfall events. Intact crusts at a 10 cm level were removed from the southeast edges of Tengger Desert, China. Amounts of released C from the four soil cover types accounted for 18.4%-23.1%, 46.9%-52.3%, and 27.7%-31.1% of total C released in the spring, summer, and fall seasons, respectively. The annual C release amounts were 56.6 gCm(-2) yr(-1) for the mobile dune sand, 67.9 gCm(-2) yr(-1) for the algae-crusted soil, 90.3 and 128.8 gCm(-2) yr(-1) for the mixed-crusted soil and moss-crusted soil. Linear regression analyses suggest a significant positive relationship between seasonal accumulative rainfall and carbon release amounts. These findings indicate that variations in the amount of seasonal rainfall and the succession of the crusts significantly change the carbon output patterns in the sandy desert ecosystem. (C) 2015 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | TEMPERATE DESERT ; CO2 EXCHANGE ; PRECIPITATION PULSES ; DIOXIDE FLUXES ; CHINA ; RESPIRATION ; ECOSYSTEM ; RESPONSES ; WATER ; RAINFALL |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Ecology ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000370893900016 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557414 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhao, Yang |
| 作者单位 | 1.Chinese Acad Sci, Shapotou Desert Res & Expt Stn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Donggang West Rd 320, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Yang,Zhang, Zhishan,Hu, Yigang,et al. The seasonal and successional variations of carbon release from biological soil crust-covered soil[J]. JOURNAL OF ARID ENVIRONMENTS,2016,127:148-153. |
| APA | Zhao, Yang,Zhang, Zhishan,Hu, Yigang,&Chen, Yongle.(2016).The seasonal and successional variations of carbon release from biological soil crust-covered soil.JOURNAL OF ARID ENVIRONMENTS,127,148-153. |
| MLA | Zhao, Yang,et al."The seasonal and successional variations of carbon release from biological soil crust-covered soil".JOURNAL OF ARID ENVIRONMENTS 127(2016):148-153. |
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来源：寒区旱区环境与工程研究所
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