Insight into climate change from the carbon exchange of biocrusts utilizing non-rainfall water | |
Ouyang, Hailong1,2; Hu, Chunxiang1 | |
刊名 | SCIENTIFIC REPORTS
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2017-05-31 | |
卷号 | 7期号:1页码:13 |
ISSN号 | 2045-2322 |
DOI | 10.1038/s41598-017-02812-y |
英文摘要 | Biocrusts are model ecosystems of global change studies. However, light and non-rainfall water (NRW) were previously few considered. Different biocrust types further aggravated the inconsistence. So carbon-exchange of biocrusts (cyanobacteria crusts-AC1/AC2; cyanolichen crust-LC1; chlorolichen crust-LC2; moss crust-MC) utilizing NRW at various temperatures and light-intensities were determined under simulated and insitu mesocosm experiments. Carbon input of all biocrusts were negatively correlated with experimental temperature under all light-intensity with saturated water and stronger light with equivalent NRW, but positively correlated with temperature under weak light with equivalent NRW. LCPs and R/Pg of AC1 were lowest, followed in turn by AC2, LC2 and MC. Thus AC1 had most opportunities to use NRW, and 2.5 degrees C warming did cause significant changes of carbon exchange. Structural equation models further revealed that air-temperature was most important for carbon-exchange of ACs, but equally important as NRW for LC2 and MC; positive influence of warming on carbon-input in ACs was much stronger than the latter. Therefore, temperature effect on biocrust carbon-input depends on both moisture and light. Meanwhile, the role of NRW, transitional states between ACs, and obvious carbon-fixation differences between lichen crusts should be fully considered in the future study of biocrusts responding to climate change. |
资助项目 | National Natural Science Foundation of China[41573111] ; National Natural Science Foundation of China[31170464] |
WOS关键词 | BIOLOGICAL SOIL CRUSTS ; ALTERED SUMMER PRECIPITATION ; ALGAL CRUSTS ; ENVIRONMENTAL-FACTORS ; INCREASED TEMPERATURE ; MICROBIOTIC CRUSTS ; COLORADO PLATEAU ; CO2 EXCHANGE ; NEGEV DESERT ; SAND DUNES |
WOS研究方向 | Science & Technology - Other Topics |
语种 | 英语 |
出版者 | NATURE PUBLISHING GROUP |
WOS记录号 | WOS:000402519400037 |
资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
内容类型 | 期刊论文 |
源URL | [http://ir.ihb.ac.cn/handle/342005/31868] ![]() |
专题 | 水生生物研究所_藻类生物学及应用研究中心_期刊论文 |
通讯作者 | Hu, Chunxiang |
作者单位 | 1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Ouyang, Hailong,Hu, Chunxiang. Insight into climate change from the carbon exchange of biocrusts utilizing non-rainfall water[J]. SCIENTIFIC REPORTS,2017,7(1):13. |
APA | Ouyang, Hailong,&Hu, Chunxiang.(2017).Insight into climate change from the carbon exchange of biocrusts utilizing non-rainfall water.SCIENTIFIC REPORTS,7(1),13. |
MLA | Ouyang, Hailong,et al."Insight into climate change from the carbon exchange of biocrusts utilizing non-rainfall water".SCIENTIFIC REPORTS 7.1(2017):13. |
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