DOI: 10.1016/j.foreco.2013.12.027
Scopus记录号: 2-s2.0-84891916379
论文题名: Effects of fire on arbuscular mycorrhizal fungi in the Mountain Chaco Forest
作者: Longo S. ; Nouhra E. ; Goto B.T. ; Berbara R.L. ; Urcelay C.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 315 起始页码: 86
结束页码: 94
语种: 英语
英文关键词: Argentina
; Chaco Forest
; Disturbances
; Glomeromycota
; Soil nutrients
; Spores communities
Scopus关键词: Argentina
; Chaco Forest
; Disturbances
; Glomeromycota
; Soil nutrients
; Fires
; Fungi
; Soils
; Forestry
; arbuscular mycorrhiza
; community dynamics
; electrical conductivity
; environmental disturbance
; forest fire
; forest soil
; fungus
; soil chemistry
; soil microorganism
; soil nutrient
; Argentina
; Fires
; Forestry
; Fungi
; Nutrients
; Soil
; Argentina
; Gran Chaco
; Sierras Pampeanas
英文摘要: The aim of this study was to evaluate the fire effects on the AMF spore communities and soil chemical properties as well as the existence of possible correlations between them in the Chaco Serrano Forests of central Argentina. Our hypothesis is that the fire has a negative impact on the community of AMF spores (i.e. density, diversity, richness and evenness) and soil chemical properties. In addition, we expect to find a high correlation between changes in the communities of fungi and soil chemical properties. We selected five areas in the "Sierras Pampeanas" mountain ranges within the Chaquean region in central Argentina. In each of them we selected adjacent burned and unburned forest sites. Burned sites have all the same time since fire occurrence (August-November 2009) and soil samples were collected in autumn (April) and spring (November) in 2010. The fire events had direct negative effects on AMF spore communities. Evenness, and notably diversity and richness of AMF spores decreased in the burned sites. Density of AMF spores was not affected by fire. With the exception of C:N, nitrate and electrical conductivity, soil parameters showed significant differences between burned and unburned sites. The changes in AMF spore composition were not significantly correlated with most of the soil variables measured here. The results of this study suggest that fire occurrence negatively affect AMF communities. These effects do not seem to be mediated by changes in soil abiotic properties. Rather, they suggest direct effects of fire on soil fungi. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66106
Appears in Collections: 影响、适应和脆弱性
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作者单位: Instituto Multidisciplinario de Biología Vegetal (IMBIV), CONICET, Universidad Nacional de Córdoba, Casilla de correo 495, 5000 Córdoba, Argentina; Departamento de Botânica, Ecologia e Zoologia, CB, Universidade Federal do Rio Grande do Norte, Campus Universitário, 59072-970 Natal, RN, Brazil; Soil Science Department, Institute of Agronomy, Federal Rural University of Rio de Janeiro, Seropédica, RJ, Brazil
Recommended Citation:
Longo S.,Nouhra E.,Goto B.T.,et al. Effects of fire on arbuscular mycorrhizal fungi in the Mountain Chaco Forest[J]. Forest Ecology and Management,2014-01-01,315