干旱区生态环境知识资源中心(Arid): Hypersaline tidal flats as important blue carbon systems: a case study from three ecosystems

Arid

DOI	10.5194/bg-18-2527-2021
	Hypersaline tidal flats as important blue carbon systems: a case study from three ecosystems
	Brown, Dylan R.; Marotta, Humberto; Peixoto, Roberta B.; Enrich-Prast, Alex; Barroso, Glenda C.; Soares, Mario L. G.; Machado, Wilson; Perez, Alexander; Smoak, Joseph M.; Sanders, Luciana M.; Conrad, Stephen; Sippo, James Z.; Santos, Isaac R.; Maher, Damien T.; Sanders, Christian J.
通讯作者	Brown, DR ; Sanders, CJ (corresponding author), Southern Cross Univ, Natl Marine Sci Ctr, Sch Environm Sci & Engn, POB 4321, Coffs Harbour, NSW 2450, Australia. ; Sanders, CJ (corresponding author), East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 201100, Peoples R China.
来源期刊	BIOGEOSCIENCES
ISSN	1726-4170
EISSN	1726-4189
出版年	2021
卷号	18 期号:8 页码:2527-2538
英文摘要	Hypersaline tidal flats (HTFs) are coastal ecosystems with freshwater deficits often occurring in arid or semiarid regions near mangrove supratidal zones with no major fluvial contributions. Here, we estimate that organic carbon (OC), total nitrogen (TN) and total phosphorus (TP) were buried at rates averaging 21 (+/- 6), 1.7 (+/- 0.3) and 1.4 (+/- 0.3) gm(-2) yr(-1), respectively, during the previous century in three contrasting HTF systems, one in Brazil (eutrophic) and two in Australia (oligotrophic). Although these rates are lower than those from nearby mangrove, saltmarsh and seagrass systems, the importance of HTFs as sinks for OC, TN and TP may be significant given their extensive coverage. Despite the measured short-term variability between net air-saltpan CO2 influx and emission estimates found during the dry and wet season in the Brazilian HTF, the only site with seasonal CO2 flux measurements, the OC sedimentary profiles over several decades suggest efficient OC burial at all sites. Indeed, the stable isotopes of OC and TN (delta C-13 and delta N-1(5)) along with C : N ratios show that microphytobenthos are the major source of the buried OC in these HTFs. Our findings highlight a previously unquantified carbon as well as a nutrient sink and suggest that coastal HTF ecosystems could be included in the emerging blue carbon framework.
类型	Article
语种	英语
开放获取类型	gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000644250600002
WOS关键词	SEDIMENT-AIR INTERFACE ; MANGROVE FORESTS ; TEMPORAL VARIABILITY ; CYANOBACTERIAL MATS ; CO2 FLUXES ; ESTUARY ; ACCUMULATION ; RESPONSES ; NITROGEN ; MARSHES
WOS类目	Ecology ; Geosciences, Multidisciplinary
WOS研究方向	Environmental Sciences & Ecology ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368057
作者单位	[Brown, Dylan R.; Conrad, Stephen; Sippo, James Z.; Santos, Isaac R.; Maher, Damien T.; Sanders, Christian J.] Southern Cross Univ, Natl Marine Sci Ctr, Sch Environm Sci & Engn, POB 4321, Coffs Harbour, NSW 2450, Australia; [Marotta, Humberto; Peixoto, Roberta B.; Enrich-Prast, Alex] Univ Fed Fluminense, Biomass & Water Management Res Ctr NAB, Ecosyst & Global Change Lab LEMG UFF, Int Lab Global Change LINCGlobal, Av Edmundo March S-N Extdegree, BR-24210310 Niteroi, RJ, Brazil; [Marotta, Humberto; Peixoto, Roberta B.; Barroso, Glenda C.; Machado, Wilson; Perez, Alexander] Univ Fed Fluminense, Dept Geochem, Grad Program Geosci Environm Geochem, BR-24020141 Niteroi, RJ, Brazil; [Marotta, Humberto] Univ Fed Fluminense, Dept Geog, Phys Geog Lab LAGEF UFF, Grad Program Geog, Av Gal Milton Tavares de Souza S-No, BR-24210346 Niteroi, RJ, Brazil; [Enrich-Prast, Alex] Linkoping Univ, Dept Themat Studies Environm Change, S-58183 Linkoping, Sweden; [Enrich-Prast, Alex] Univ Fed Rio de Janeiro, Dept Bot, BR-21941902 ...
推荐引用方式 GB/T 7714	Brown, Dylan R.,Marotta, Humberto,Peixoto, Roberta B.,et al. Hypersaline tidal flats as important blue carbon systems: a case study from three ecosystems[J],2021,18(8):2527-2538.
APA	Brown, Dylan R..,Marotta, Humberto.,Peixoto, Roberta B..,Enrich-Prast, Alex.,Barroso, Glenda C..,...&Sanders, Christian J..(2021).Hypersaline tidal flats as important blue carbon systems: a case study from three ecosystems.BIOGEOSCIENCES,18(8),2527-2538.
MLA	Brown, Dylan R.,et al."Hypersaline tidal flats as important blue carbon systems: a case study from three ecosystems".BIOGEOSCIENCES 18.8(2021):2527-2538.