气候变化领域集成服务门户(CCPortal): Tree ring and water deficit indices as indicators of drought impact on black truffle production in Spain

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DOI	10.1016/j.foreco.2020.118438
	Tree ring and water deficit indices as indicators of drought impact on black truffle production in Spain
	Garcia-Barreda S.; Camarero J.J.
发表日期	2020
ISSN	0378-1127
卷号	475
英文摘要	Black truffle is a highly-prized fungus that constitutes an important economic resource in many Mediterranean forests of southern Europe. Black truffle production in these forests and in cultivated truffle orchards is subject to important interannual variations linked to climatic factors, among which summer water shortage is particularly relevant in dry regions such as Mediterranean Spain. Thus, in recent years irrigation has become widespread in Spanish black truffle orchards, although no long-term proxies of black truffle production exist and scientific guidelines for the irrigation of these orchards are lacking. In this study, we explore the possibilities and limitations of pine tree-ring width data (seasonal wood production) and agroclimatic indices to predict black truffle production in Spain, while gaining more in-depth knowledge on water requirements of truffle production. For this purpose, we used the national annual estimates of black truffle production and compared these values with several tree-ring width series, monthly climatic factors, and water balance-based indices. We found a strong linkage between summer water availability, black truffle production and Mediterranean pine latewood formation, with summer drought intensity reducing both black truffle and Pinus pinaster latewood production. The adjusted latewood index for P. pinaster and the accumulated water deficit from April to September were robust predictors of black truffle production. The predictive skills of these two variables were further confirmed with a calibration-verification technique. These variables can be used as climatic proxies of black truffle production in agronomic or silvicultural studies, in a sector where no large-scale network for monitoring soil water content exists, and many truffle orchards are small and have low possibilities for modernisation. © 2020 Elsevier B.V.
英文关键词	Dendroecology; Fungal fruiting; Latewood; Pinus pinaster; Tuber melanosporum; Water deficit
语种	英语
scopus关键词	Drought; Irrigation; Orchards; Soil moisture; Calibration verification; Economic resources; Interannual variation; Large-scale network; Mediterranean forest; Mediterranean pines; Summer drought intensities; Water deficit index; Forestry; agrometeorology; agronomy; annual variation; coniferous tree; drought; environmental factor; forest ecosystem; fungus; orchard; silviculture; soil water; tree ring; Mediterranean Region; Spain; Fungi; Pinus pinaster; Tuber melanosporum
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/155046
作者单位	Unidad de Recursos Forestales, Centro de Investigación y Tecnología Agroalimentaria de Aragón (CITA), Instituto Agroalimentario de Aragón – IA2 (CITA-Universidad de Zaragoza), Avda. Montañana 930, Zaragoza, 50059, Spain; Centro de Investigación y Experimentación en Truficultura de la Diputación de Huesca (CIET), Polígono Fabardo s/n, Graus, 22430, Spain; Instituto Pirenaico de Ecología (IPE-CSIC), Avda. Montañana 1005, Zaragoza, 50059, Spain
推荐引用方式 GB/T 7714	Garcia-Barreda S.,Camarero J.J.. Tree ring and water deficit indices as indicators of drought impact on black truffle production in Spain[J],2020,475.
APA	Garcia-Barreda S.,&Camarero J.J..(2020).Tree ring and water deficit indices as indicators of drought impact on black truffle production in Spain.Forest Ecology and Management,475.
MLA	Garcia-Barreda S.,et al."Tree ring and water deficit indices as indicators of drought impact on black truffle production in Spain".Forest Ecology and Management 475(2020).