Arid
DOI10.1007/s00374-016-1087-7
Precipitation regime drives warming responses of microbial biomass and activity in temperate steppe soils
Liu, Weixing1; Allison, Steven D.2,3; Xia, Jianyang4; Liu, Lingli1; Wan, Shiqiang5
通讯作者Liu, Weixing
来源期刊BIOLOGY AND FERTILITY OF SOILS
ISSN0178-2762
EISSN1432-0789
出版年2016
卷号52期号:4页码:469-477
英文摘要

Although numerous warming experiments have examined the impacts of elevated temperature on soil microbial activities, most are based on responses from a single site. To investigate how precipitation regime regulates warming effects on the carbon cycle, we conducted manipulative warming experiments in desert steppe, typical steppe, and meadow steppe along a precipitation gradient in northern China. Soil temperature, moisture, microbial biomass C (MBC), N (MBN), and microbial respiration were measured from 2006 to 2009. Soil moisture was significantly reduced by warming in the typical steppe but not affected in the desert and meadow steppe. Across the 4 years, warming decreased MBC and microbial respiration in the desert and typical steppe but not in the meadow steppe. The magnitude of warming-induced reductions in MBC and microbial respiration declined as site precipitation increased. Across the three sites, the changes in soil MBC, MBN, and microbial respiration were all positively correlated with annual precipitation and changes in belowground net primary productivity. Our results suggest that precipitation regime controls the response of soil microbial activity and biomass to warming, possibly by regulating soil moisture and substrate availability. With increasing precipitation, the stimulatory effects of warming on soil microbial activity and biomass outweigh the inhibitory effects due to declining soil moisture.


英文关键词Drought Elevated temperature Grassland Microbial activities Precipitation Soil moisture Substrate availability
类型Article
语种英语
国家Peoples R China ; USA
收录类别SCI-E
WOS记录号WOS:000374659400004
WOS关键词EXTRACELLULAR ENZYME-ACTIVITIES ; CARBON-CYCLE FEEDBACKS ; BEECH FOREST SOIL ; CLIMATE-CHANGE ; NITROGEN ADDITION ; HETEROTROPHIC RESPIRATION ; SEASONAL PATTERNS ; ARCTIC TUNDRA ; CO2 ; COMMUNITIES
WOS类目Soil Science
WOS研究方向Agriculture
来源机构中国科学院植物研究所
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/191798
作者单位1.Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Inst Bot, Beijing 100093, Peoples R China;
2.Univ Calif Irvine, Dept Ecol & Evolutionary Biol, Irvine, CA 92697 USA;
3.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA;
4.Univ Oklahoma, Dept Microbiol & Plant Biol, 770 Van Vleet Oval, Norman, OK 73019 USA;
5.Henan Univ, Key State Lab Cotton Biol, Coll Life Sci, Kaifeng 475004, Henan, Peoples R China
推荐引用方式
GB/T 7714
Liu, Weixing,Allison, Steven D.,Xia, Jianyang,et al. Precipitation regime drives warming responses of microbial biomass and activity in temperate steppe soils[J]. 中国科学院植物研究所,2016,52(4):469-477.
APA Liu, Weixing,Allison, Steven D.,Xia, Jianyang,Liu, Lingli,&Wan, Shiqiang.(2016).Precipitation regime drives warming responses of microbial biomass and activity in temperate steppe soils.BIOLOGY AND FERTILITY OF SOILS,52(4),469-477.
MLA Liu, Weixing,et al."Precipitation regime drives warming responses of microbial biomass and activity in temperate steppe soils".BIOLOGY AND FERTILITY OF SOILS 52.4(2016):469-477.
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