气候变化领域集成服务门户(CCPortal): Shifts in soil traits and arbuscular mycorrhizal symbiosis represent the conservation status of Araucaria araucana forests and the effects after fire events

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DOI	10.1016/j.foreco.2019.117806
	Shifts in soil traits and arbuscular mycorrhizal symbiosis represent the conservation status of Araucaria araucana forests and the effects after fire events
	Chávez D.; Machuca Á.; Fuentes-Ramirez A.; Fernandez N.; Cornejo P.
发表日期	2020
ISSN	0378-1127
卷号	458
英文摘要	Araucaria araucana is a long-lived native conifer from the sub-Antarctic Andean forests of South America. Currently, the species is classified as endangered due to fragmentation, deforestation and increasing fire events affecting southern Chile. Although fire is a key factor shaping the dynamics of A. araucana forests, the impact of fire on the chemical and microbiological soil properties remains elusive. Here, we aimed to characterize the (bio)chemical and microbiological soil traits in different sites of the Andes and the Coastal range of southern Chile, as a way to describe the conservation status of A. araucana forests in contrasting environments with different fire history. The study was conducted in old-growth A. araucana forests within protected areas affected by different fire events during the last 18 years. Roots were analyzed for arbuscular mycorrhizal (AM) colonization and soil samples were processed for (bio)chemical and microbiological analyses. Our results revealed that AM colonization was strongly affected by fire, being closely related with the acid phosphatase and β-glucosidase enzymatic activities, which also showed lower values in fire-affected sites. Glomalin-related protein in the soil was also a good indicator of soil stability associated to environments non-affected by fire. Based on our results, the conservation status benchmark for A. araucana is in the Coastal range, showing high rates of AM colonization, fungal structures and biochemical activities in environments subjected to minor geological risks and no fire events. This research provides helpful information for finding efficient biological inoculants, including indigenous AM fungal species, which can help to enhance A. araucana plantlets with an optimized rhizosphere oriented to the restoration of burned A. araucana forests in south-central Chile. © 2019 Elsevier B.V.
英文关键词	Arbuscular mycorrhizae; Biochemical soil activity; Fire impacts; Native forests; Protected areas; Soil ecology
语种	英语
scopus关键词	Chemical analysis; Deforestation; Ecology; Environmental protection; Fire hazards; Fires; Fungi; Phosphatases; Soils; Arbuscular mycorrhizas; Fire impacts; Native forests; Protected areas; Soil ecology; Soil conservation; arbuscular mycorrhiza; biochemistry; colonization; coniferous forest; conservation status; deforestation; endangered species; fire; habitat fragmentation; native species; protected area; soil analysis; symbiosis; Chemical Analysis; Deforestation; Ecology; Environments; Fires; Forests; Fungi; Soil; Andes; Chile; Araucaria araucana; Coniferophyta
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155527
作者单位	Department of Plant Sciences and Technology, Universidad de Concepción, Campus Los Ángeles, Juan Antonio Coloma 0201, Los Ángeles, Chile; Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental, CIMYSA, Universidad de La Frontera, Av. Francisco Salazar 01145, Temuco, Chile; Laboratorio de Biometría, Departamento de Ciencias Forestales, Universidad de La Frontera, Temuco, Chile; Centro Butamallin-Investigación en Cambio Global, Facultad de Ciencias Agropecuarias y Forestales, Universidad de La Frontera, Temuco, Chile; Instituto de Ecología y Biodiversidad (IEB), Santiago, Chile; Laboratorio de Microbiología Aplicada y Biotecnología, Centro Regional Universitario Bariloche, Universidad Nacional del Comahue and IPATEC-CONICET, Quintral 1250, Bariloche, Argentina
推荐引用方式 GB/T 7714	Chávez D.,Machuca Á.,Fuentes-Ramirez A.,et al. Shifts in soil traits and arbuscular mycorrhizal symbiosis represent the conservation status of Araucaria araucana forests and the effects after fire events[J],2020,458.
APA	Chávez D.,Machuca Á.,Fuentes-Ramirez A.,Fernandez N.,&Cornejo P..(2020).Shifts in soil traits and arbuscular mycorrhizal symbiosis represent the conservation status of Araucaria araucana forests and the effects after fire events.Forest Ecology and Management,458.
MLA	Chávez D.,et al."Shifts in soil traits and arbuscular mycorrhizal symbiosis represent the conservation status of Araucaria araucana forests and the effects after fire events".Forest Ecology and Management 458(2020).