干旱区生态环境知识资源中心(Arid): Vertical movement of soluble carbon and nutrients from biocrusts to subsurface mineral soils

Arid

DOI	10.1016/j.geoderma.2021.115495
	Vertical movement of soluble carbon and nutrients from biocrusts to subsurface mineral soils
	Young, Kristina E.; Ferrenberg, Scott; Reibold, Robin; Reed, Sasha C.; Swenson, Tami; Northen, Trent; Darrouzet-Nardi, Anthony
通讯作者	Young, KE (corresponding author), Univ Texas El Paso, Biol Sci, 500 W Univ Ave, El Paso, TX 79968 USA.
来源期刊	GEODERMA
ISSN	0016-7061
EISSN	1872-6259
出版年	2022
卷号	405
英文摘要	Dryland ecosystems can be constrained by low soil fertility. Within drylands, the soil nutrient and organic carbon (C) cycling that does occur is often mediated by soil surface communities known as biological soil crusts (biocrusts), which cycle C and nutrients in the top ca. 0-2 cm of soil. However, the degree to which biocrusts are influencing soil fertility and biogeochemical cycling in deeper, subsurface mineral soils is unclear. The movement of dissolved resources from biocrusts to deeper soil layers in leachate may be one of the main mechanisms through which biocrust fertility is transferred downward towards deeper microbial communities and plant roots occurring within mineral soil. Here we examined the role of biocrust leachate in contributing to subsurface nutrient and soluble C pools and subsurface microbial cycling. We collected biocrusts from three biocrust successional stages and explored resource pools in situ at multiple soil depths, while collecting leachate and measuring nutrient and organic C concentrations and metabolite composition from each successional stage in the laboratory. After four leachate collections, we conducted an incubation of mineral soil collected from below each biocrust successional stage to measure heterotrophic microbial CO2 flux and biomass. Overall, our findings observed that the degree of nutrient and C connectivity between biocrusts and the sub-crust mineral soil depended on the biocrust successional stage and the element being considered, and the influence of biocrust successional stage on mineral soil CO2 flux is likely related to long-term resource build up. Together, our results suggest that the influence of biocrust leachate on subsurface mineral soil is complex and context dependent, but, over longer time periods and at later successional stages, can have measurable effects on dryland soil biogeochemical cycling with feedbacks to resource availability and CO2 flux.
英文关键词	Soil fertility Nutrient cycling Cryptogam Desert Biogeochemistry Metabolomics
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000708888600001
WOS关键词	BIOLOGICAL SOIL ; CRUST DEVELOPMENT ; COLORADO PLATEAU ; ORGANIC-CARBON ; CLIMATE-CHANGE ; NITROGEN ; DESERT ; STABILITY ; INCREASES ; MITIGATE
WOS类目	Soil Science
WOS研究方向	Agriculture
来源机构	United States Geological Survey ; New Mexico State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363393
作者单位	[Young, Kristina E.; Darrouzet-Nardi, Anthony] Univ Texas El Paso, Biol Sci, 500 W Univ Ave, El Paso, TX 79968 USA; [Ferrenberg, Scott] New Mexico State Univ, Dept Biol, Foster Hall,1305 Frenger St, Las Cruces, NM 88001 USA; [Reibold, Robin; Reed, Sasha C.] US Geol Survey, Southwest Biol Sci Ctr, 2290 S West Resource Blvd, Moab, UT 84532 USA; [Swenson, Tami; Northen, Trent] Lawrence Berkeley Natl Lab, Environm Genom & Syst Biol Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA; [Northen, Trent] DOE Joint Genome Inst, 2800 Mitchell Dr, Walnut Creek, CA 94598 USA
推荐引用方式 GB/T 7714	Young, Kristina E.,Ferrenberg, Scott,Reibold, Robin,et al. Vertical movement of soluble carbon and nutrients from biocrusts to subsurface mineral soils[J]. United States Geological Survey, New Mexico State University,2022,405.
APA	Young, Kristina E..,Ferrenberg, Scott.,Reibold, Robin.,Reed, Sasha C..,Swenson, Tami.,...&Darrouzet-Nardi, Anthony.(2022).Vertical movement of soluble carbon and nutrients from biocrusts to subsurface mineral soils.GEODERMA,405.
MLA	Young, Kristina E.,et al."Vertical movement of soluble carbon and nutrients from biocrusts to subsurface mineral soils".GEODERMA 405(2022).