Gema Guzmán

Dr. Gema Guzmán

Institute for Sustainable Agriculture-CSIC, 14004 Córdoba, Spain
orcid

Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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7 February 2018 in Journal of Applied Ecology
Verified
Journal Article
Open access
PDF file
SWSilvia Winter
Silvia Winter
TBThomas Bauer
Thomas Bauer
Peter StraussPeter Strauss
Peter Strauss
SKSophie Kratschmer
Sophie Kratschmer
DPDaniel Paredes
Daniel Paredes
PBPéter Batáry
Péter Batáry
At the global scale, vineyards are usually managed intensively to optimize wine production without considering possible negative impacts on biodiversity and ecosystem services (ES) such as high soil erosion rates, degradation of soil fertility or contamination of groundwater. Winegrowers regulate competition for water and nutrients between the vines and inter‐row vegetation by tilling, mulching and/or herbicide application. Strategies for more sustainable viticulture recommend maintaining vegetation cover in inter‐rows, however, there is a lack of knowledge as to what extent this less intensive inter‐row management affects biodiversity and associated ES. We performed a hierarchical meta‐analysis to quantify the effects of extensive vineyard inter‐row vegetation management in comparison to more intensive management (like soil tillage or herbicide use) on biodiversity and ES from 74 studies covering four continents and 13 wine‐producing countries. Overall, extensive vegetation management increased above‐ and below‐ground biodiversity and ecosystem service provision by 20% in comparison to intensive management. Organic management together with management without herbicides showed a stronger positive effect on ES and biodiversity provision than inter‐row soil tillage. Soil loss parameters showed the largest positive response to inter‐row vegetation cover. The second highest positive response was observed for biodiversity variables, followed by carbon sequestration, pest control and soil fertility. We found no trade‐off between grape yield and quality vs. biodiversity or other ES. Synthesis and applications. Our meta‐analysis concludes that vegetation cover in inter‐rows contributes to biodiversity conservation and provides multiple ecosystem services. However, in drier climates grape yield might decrease without irrigation and careful vegetation management. Agri‐environmental policies should therefore focus on granting subsidies for the establishment of locally adapted diverse vegetation cover in vineyard inter‐rows. Future studies should focus on analysing the combined effects of local vineyard management and landscape composition and advance research in wine‐growing regions in Asia and in the southern hemisphere.

1 March 2017 in Anthropocene
Verified
Journal Article
Closed access
TVTom Vanwalleghem
Tom Vanwalleghem
JGJ.A. Gómez
J.A. Gómez
JIJuan Infante-Amate
Juan Infante-Amate
Manuel González de MolinaManuel González de Molina
Manuel González de Molina
KVKarl Vanderlinden
Karl Vanderlinden
JGJuan V Giráldez
Juan V Giráldez

1 December 2009 in Soil and Tillage Research
Verified
Journal Article
Closed access
Jose A GomezJose A Gomez
Jose A Gomez
Gema GuzmánGema Guzmán
Gema Guzmán
JGJuan V Giráldez
Juan V Giráldez
EFElías Fereres
Elías Fereres

27 February 2013 in Journal of Soils and Sediments
Verified
Journal Article
Open access
PDF file
Gema GuzmánGema Guzmán
Gema Guzmán
JQJohn N. Quinton
John N. Quinton
MNMark A. Nearing
Mark A. Nearing
LMLionel Mabit
Lionel Mabit
Jose A GomezJose A Gomez
Jose A Gomez
Interest in the use of sediment tracers as a tool to complement traditional water erosion or deposition measurements has increased due to the additional information they provide, such as sediment source identification, tracking of sediment movement across the landscape at various temporal and spatial scales, and estimation of soil erosion rates. For these reasons, the utility and robustness of sediment tracing approaches using a wide range of substances and soil properties have been evaluated in numerous studies. A review of established tracing approaches identified five distinct groups of tracing approaches: fallout radionuclides, rare earth elements, soil magnetism and magnetic substances, other tracers, and sediment fingerprinting techniques. This paper describes the basic theory of each tracing approach in assessing soil erosion and sediment redistribution, describing their methodology and main applications, and summarizing the commonalities and differences between the approaches. It also identifies research gaps and future trends.

30 January 2017 in Environmental Science and Pollution Research
Verified
Journal Article
Closed access
PDF file
Jose A GomezJose A Gomez
Jose A Gomez
MCMercedes Campos
Mercedes Campos
Gema GuzmánGema Guzmán
Gema Guzmán
FCFranco Castillo-Llanque
Franco Castillo-Llanque
TVTom Vanwalleghem
Tom Vanwalleghem
JGJuan V Giráldez
Juan V Giráldez

1 December 2020 in International Soil and Water Conservation Research
Verified
Journal Article
Open access
MBM. Biddoccu
M. Biddoccu
Gema GuzmánGema Guzmán
Gema Guzmán
GCG. Capello
G. Capello
TTT. Thielke
T. Thielke
PSP. Strauss
P. Strauss
JGJ.A. Gómez
J.A. Gómez