Arid
DOI10.1111/gcb.12306
Changes in biocrust cover drive carbon cycle responses to climate change in drylands
Maestre, Fernando T.1; Escolar, Cristina1; Ladron De Guevara, Monica2; Quero, Jose L.1,3; Lazaro, Roberto2; Delgado-Baquerizo, Manuel4; Ochoa, Victoria1; Berdugo, Miguel1; Gozalo, Beatriz1; Gallardo, Antonio4
通讯作者Maestre, Fernando T.
来源期刊GLOBAL CHANGE BIOLOGY
ISSN1354-1013
EISSN1365-2486
出版年2013
卷号19期号:12页码:3835-3847
英文摘要

Dryland ecosystems account for ca. 27% of global soil organic carbon (C) reserves, yet it is largely unknown how climate change will impact C cycling and storage in these areas. In drylands, soil C concentrates at the surface, making it particularly sensitive to the activity of organisms inhabiting the soil uppermost levels, such as communities dominated by lichens, mosses, bacteria and fungi (biocrusts). We conducted a full factorial warming and rainfall exclusion experiment at two semiarid sites in Spain to show how an average increase of air temperature of 2-3 degrees C promoted a drastic reduction in biocrust cover (ca. 44% in 4years). Warming significantly increased soil CO2 efflux, and reduced soil net CO2 uptake, in biocrust-dominated microsites. Losses of biocrust cover with warming through time were paralleled by increases in recalcitrant C sources, such as aromatic compounds, and in the abundance of fungi relative to bacteria. The dramatic reduction in biocrust cover with warming will lessen the capacity of drylands to sequester atmospheric CO2. This decrease may act synergistically with other warming-induced effects, such as the increase in soil CO2 efflux and the changes in microbial communities to alter C cycling in drylands, and to reduce soil C stocks in the mid to long term.


英文关键词bacteria biological soil crusts carbon cycling climate change drylands fungi lichens soil CO2 efflux soil net CO2 exchange
类型Article
语种英语
国家Spain
收录类别SCI-E
WOS记录号WOS:000326836000023
WOS关键词BIOLOGICAL SOIL CRUSTS ; CO2 EFFLUX ; SUCCESSIONAL STAGES ; NITROGEN-FIXATION ; SPECIES RICHNESS ; COLORADO PLATEAU ; SEMIARID PLANT ; NEGEV DESERT ; LICHEN ; RESPIRATION
WOS类目Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/177440
作者单位1.Univ Rey Juan Carlos, Escuela Super Ciencias Expt & Tecnol, Dept Biol & Geol, Area Biodiversidad Conservac, Mostoles 28933, Spain;
2.Estn Expt Zonas Aridas CSIC, La Canada De San Urbano 04120, Spain;
3.Univ Cordoba, Escuela Tecn Super Ingn Agron & Montes, Dept Ingn Forestal, E-14071 Cordoba, Spain;
4.Univ Pablo de Olavide, Dept Sistemas Fis Quim & Nat, Seville 41013, Spain
推荐引用方式
GB/T 7714
Maestre, Fernando T.,Escolar, Cristina,Ladron De Guevara, Monica,et al. Changes in biocrust cover drive carbon cycle responses to climate change in drylands[J],2013,19(12):3835-3847.
APA Maestre, Fernando T..,Escolar, Cristina.,Ladron De Guevara, Monica.,Quero, Jose L..,Lazaro, Roberto.,...&Gallardo, Antonio.(2013).Changes in biocrust cover drive carbon cycle responses to climate change in drylands.GLOBAL CHANGE BIOLOGY,19(12),3835-3847.
MLA Maestre, Fernando T.,et al."Changes in biocrust cover drive carbon cycle responses to climate change in drylands".GLOBAL CHANGE BIOLOGY 19.12(2013):3835-3847.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Maestre, Fernando T.]的文章
[Escolar, Cristina]的文章
[Ladron De Guevara, Monica]的文章
百度学术
百度学术中相似的文章
[Maestre, Fernando T.]的文章
[Escolar, Cristina]的文章
[Ladron De Guevara, Monica]的文章
必应学术
必应学术中相似的文章
[Maestre, Fernando T.]的文章
[Escolar, Cristina]的文章
[Ladron De Guevara, Monica]的文章
相关权益政策
暂无数据
收藏/分享

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。