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dc.contributor.authorLi, Linfeng
dc.contributor.authorQian, Ruyan
dc.contributor.authorWang, Weijin
dc.contributor.authorKang, Xiaoming
dc.contributor.authorRan, Qinwei
dc.contributor.authorZheng, Zhenzhen
dc.contributor.authorZhang, Biao
dc.contributor.authorXu, Cong
dc.contributor.authorChe, Rongxiao
dc.contributor.authorDong, Junfu
dc.contributor.authorXu, Zhihong
dc.contributor.authorCui, Xiaoyong
dc.contributor.authorHao, Yanbin
dc.contributor.authorWang, Yanfen
dc.date.accessioned2020-09-24T02:51:51Z
dc.date.available2020-09-24T02:51:51Z
dc.date.issued2020
dc.identifier.issn0016-7061
dc.identifier.doi10.1016/j.geoderma.2020.114629
dc.identifier.urihttp://hdl.handle.net/10072/397874
dc.description.abstractIncreasing frequency and magnitude of climate extremes could fundamentally affect terrestrial carbon (C) cycling. However, as the second-largest terrestrial C flux, soil respiration (SR) responses to climate extremes are not well understood. Here, we investigated the effects of drought, heat wave and drought plus heat wave on SR in a semiarid grassland during the growing season over 3 years. The results indicated that drought consistently reduced the growing-season mean SR, especially during the period of drought treatment, while heat wave, alone or when combined with drought, had little effect on SR. The decreased SR under drought at the intra-annual timescale could be primarily attributable to restriction of low soil moisture to microbial biomass, as there were no consistent changes in plant community (aboveground biomass, richness and abundance). In contrast, the inter-annual variation in SR was positively related to plant community abundance, richness and aboveground biomass in additional to soil water availability, but was not significantly affected by microbial biomass. Our study highlighted that incorporating microbial biomass in C cycling models can improve simulation of seasonal dynamics of soil respiration while incorporating plant community characteristics can benefit prediction of variation in SR across multiple years in semiarid grasslands.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofjournalGeoderma
dc.relation.ispartofvolume378
dc.subject.fieldofresearchEnvironmental sciences
dc.subject.fieldofresearchBiological sciences
dc.subject.fieldofresearchAgricultural, veterinary and food sciences
dc.subject.fieldofresearchcode41
dc.subject.fieldofresearchcode31
dc.subject.fieldofresearchcode30
dc.subject.keywordsScience & Technology
dc.subject.keywordsLife Sciences & Biomedicine
dc.subject.keywordsSoil Science
dc.subject.keywordsAgriculture
dc.subject.keywordsCarbon cycling
dc.titleThe intra- and inter-annual responses of soil respiration to climate extremes in a semiarid grassland
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationLi, L; Qian, R; Wang, W; Kang, X; Ran, Q; Zheng, Z; Zhang, B; Xu, C; Che, R; Dong, J; Xu, Z; Cui, X; Hao, Y; Wang, Y, The intra- and inter-annual responses of soil respiration to climate extremes in a semiarid grassland, Geoderma, 2020, 378
dc.date.updated2020-09-23T22:10:45Z
gro.hasfulltextNo Full Text
gro.griffith.authorXu, Zhihong


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