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Analysis of institutional authors

Rodriguez, AlfredoCorresponding AuthorPerez-Lopez, DavidAuthorCenteno, AnaAuthorGomara, InigoAuthorRuiz-Ramos, MargaritaAuthor

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June 19, 2019
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Article

Chilling accumulation in fruit trees in Spain under climate change

Publicated to: Natural Hazards And Earth System Sciences. 19 (5): 1087-1103 - 2019-05-27 19(5), DOI: 10.5194/nhess-19-1087-2019

Authors:

Rodriguez, Alfredo; Perez-Lopez, David; Sanchez, Enrique; Centeno, Ana; Gomara, Inigo; Dosio, Alessandro; Ruiz-Ramos, Margarita
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Affiliations

European Commiss, JRC, Ispra, Italy - Author
Univ Castilla La Mancha, Dept Econ Anal & Finances, Toledo 45071, Spain - Author
Univ Castilla La Mancha, Fac Environm Sci & Biochem, Toledo 45071, Spain - Author
Univ Politecn Madrid, CEIGRAM, E-28040 Madrid, Spain - Author
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Abstract

Growing trees are quite vulnerable to cold temperatures. To minimise the effect of these cold temperatures, they stop their growth over the coldest months of the year, a state called dormancy. In particular, endodormancy requires accumulating chilling temperatures to finish this sort of dormancy. The accumulation of cool temperatures according to specific rules is called chilling accumulation, and each tree species and variety has specific chilling requirements for correct plant development. Under global warming, it is expected that the fulfilment of the chilling requirements to break dormancy in fruit trees could be compromised. In this study, the impact of climate change on the chilling accumulation over peninsular Spain and the Balearic Islands was assessed. For this purpose, bias-adjusted results of 10 regional climate models (RCMs) under Representative Concentration Pathways (RCPs) 4.5 and 8.5 were used as inputs of four different models for calculating chilling accumulation, and the results for each model were individually compared for the 2021-2050 and 2071-2100 future periods under both RCPs. These results project a generalised reduction in chilling accumulation regardless of the RCP, future period or chilling calculation model used, with higher reductions for the 2071-2100 period and the RCP8.5 scenario. The projected winter chill decrease may threaten the viability of some tree crops and varieties in some areas where the crop is currently grown, but also shows scope for varieties with lower chilling requirements. The results are relevant for planning future tree plantations under climate change, supporting adaptation of spatial distribution of tree crops and varieties in Spain.
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Keywords

Adaptation strategiesChange impactsDormancy breakingEuro-cordexFlowering dateHeat requirementsPistachio treesRest completionTemperature-dependenceWorld map

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Natural Hazards And Earth System Sciences due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2019, it was in position 22/94, thus managing to position itself as a Q1 (Primer Cuartil), in the category Water Resources.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations provided by WoS (ESI, Clarivate), it yields a value for the citation normalization relative to the expected citation rate of: 1.54. This indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 13, 2025)

This information is reinforced by other indicators of the same type, which, although dynamic over time and dependent on the set of average global citations at the time of their calculation, consistently position the work at some point among the top 50% most cited in its field:

  • Weighted Average of Normalized Impact by the Scopus agency: 2.01 (source consulted: FECYT Mar 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-12-21, the following number of citations:

  • WoS: 33
  • Scopus: 38
  • Google Scholar: 55
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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-12-21:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 86.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 89 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 38.
  • The number of mentions on the social network X (formerly Twitter): 12 (Altmetric).
  • The number of mentions in news outlets: 3 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/77644/

As a result of the publication of the work in the institutional repository, statistical usage data has been obtained that reflects its impact. In terms of dissemination, we can state that, as of

  • Views: 194
  • Downloads: 25
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Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Belgium; Italy.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (RODRIGUEZ SANCHEZ, ALFREDO) and Last Author (RUIZ RAMOS, MARGARITA).

the author responsible for correspondence tasks has been RODRIGUEZ SANCHEZ, ALFREDO.

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Awards linked to the item

We acknowledge the World Climate Research Programme's Working Group on Regional Climate, and the Working Group on Coupled Modelling, the former coordinating body of CORDEX and responsible panel for CMIP5. We also thank the climate modelling groups (listed in Table S1 of this paper) for producing and making their model output available. We also acknowledge the Earth System Grid Federation infrastructure, an international effort led by the U.S. Department of Energy's Program for Climate Model Diagnosis and Intercomparison, the European Network for Earth System Modelling and other partners in the Global Organisation for Earth System Science Portals (GOESSP). The authors thank AEMET and UC for the data provided for this work (Spain02 v5 data set, available at http://www.meteo.unican.es/datasets/spain02, last access: 16 May 2019). Inigo Gomara was supported by the Spanish Ministry of Economy and Competitiveness (Juan de la Cierva-Formacion contract; FJCI-201523874) and Universidad Politecnica de Madrid (Programa Propio -Retencion de Talento Doctor). Alfredo Rodriguez was supported by the Spanish National Institute for Agricultural and Food Research and Technology and Agencia Estatal de Investigacion grant MACSUR02-APCIN2016-0005-00-00 and by the Comunidad de Madrid (Spain) and structural funds 2014-2020 (ERDF and ESF), project AGRISOST-CM S2018/BAA-4330.
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