干旱区生态环境知识资源中心(Arid): Biological soil crusts from the Monte desert affect soil moisture and nutrients, and improve Leptochloa crinita grass development

Arid

DOI	10.1016/j.actao.2021.103712
	Biological soil crusts from the Monte desert affect soil moisture and nutrients, and improve Leptochloa crinita grass development
	Corvalan Videla, Maria Elena; Nelida Aranibar, Julieta; Greco, Silvina
通讯作者	Aranibar, JN (corresponding author), CONICET Mendoza, Inst Argentino Nivol Glaciol & Ciencias Ambiental, Av Ruiz Leal S-N Parque Gen San Martin, Mendoza, Argentina.
来源期刊	ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY
ISSN	1146-609X
EISSN	1873-6238
出版年	2021
卷号	110
英文摘要	Biological soil crusts (BSC) are widespread in the Monte desert. BSC, by fixing atmospheric N and retaining soil moisture, may enhance grass emergence, growth, and nutritional value. Our aim was to evaluate the effect of different functional types of BSC from the Monte desert on soil moisture and nutrients, N fixation, respiration, grass emergence, growth, and C/N. We sowed Leptochloa crinita seeds in pots with different BSC types (dominated by cyanobacteria, squamulose phycolichens, squamulose cyanolichens, gelatinous cyanolichens, and mosses) under two irrigation treatments: well watered and drought. We determined soil, BSC and grass properties related to nitrogen, phosphorus, and water cycles. In soils under BSC, we determined moisture, nitrate, and phosphate at two depths. In BSC, we determined total N, organic matter, ammonium, respiration, and delta N-15. Finally, in grasses growing under BSC, we determined seedling emergence, grass biomass, C/N, and delta N-15. All BSC types except cyanobacteria increased soil total N, ammonium, and respiration rates compared to bare soils under drought conditions. Cyanobacteria BSC increased soil moisture under drought conditions, while squamulose phycolichens and mosses increased it under well watered conditions. All BSC types increased underlying soil nitrate under well watered conditions, and decreased phosphate in at least one experimental condition. All BSC types improved at least one grass variable: cyanobacteria decreased C/N; squamulose cyanolichens increased emergence and decreased C/N; squamulose phycolichens increased emergence and biomass; gelatinous cyanolichens decreased C/N; and mosses increased emergence, biomass, and decreased C/N. The differential effects of each BSC type on soil and grass variables, under drought and well watered conditions, suggest the importance of BSC functional diversity on ecosystem functions of water regulation and nutrient cycling.
英文关键词	Lichens Mosses Seedling emergence Moisture Nitrogen Phosphorus
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000641035900033
WOS关键词	TENGGER-DESERT ; SPATIAL-DISTRIBUTION ; NITROGEN-FIXATION ; EMERGENCE ; BIOCRUSTS ; CYANOBACTERIAL ; ECOSYSTEMS ; DYNAMICS ; PLATEAU ; SHRUBS
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349264
作者单位	[Corvalan Videla, Maria Elena; Nelida Aranibar, Julieta] CONICET Mendoza, Inst Argentino Nivol Glaciol & Ciencias Ambiental, Av Ruiz Leal S-N Parque Gen San Martin, Mendoza, Argentina; [Nelida Aranibar, Julieta] Univ Nacl Cuyo, Fac Ciencias Exactas & Nat, Padre Jorge Contreras 1300,Parque Gen San Martin, Mendoza, Argentina; [Greco, Silvina] Univ Nacl Cuyo, Fac Ciencias Agr, Almirante Brown 52, Mendoza, Argentina
推荐引用方式 GB/T 7714	Corvalan Videla, Maria Elena,Nelida Aranibar, Julieta,Greco, Silvina. Biological soil crusts from the Monte desert affect soil moisture and nutrients, and improve Leptochloa crinita grass development[J],2021,110.
APA	Corvalan Videla, Maria Elena,Nelida Aranibar, Julieta,&Greco, Silvina.(2021).Biological soil crusts from the Monte desert affect soil moisture and nutrients, and improve Leptochloa crinita grass development.ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY,110.
MLA	Corvalan Videla, Maria Elena,et al."Biological soil crusts from the Monte desert affect soil moisture and nutrients, and improve Leptochloa crinita grass development".ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY 110(2021).