2024-03-29T09:17:06Zhttps://minerva.usc.es/oai/requestoai:minerva.usc.es:10347/118122020-04-11T08:13:14Zcom_10347_2917com_10347_2891com_10347_2888com_10347_227com_10347_2973com_10347_2889col_10347_11706col_10347_11709
Fernández Marcos, María Luisa
Macías Vázquez, Felipe
Guitián Ojea, Francisco
Universidade de Santiago de Compostela. Departamento de Edafoloxía e Química Agrícola
2014-11-11T11:17:33Z
2014-11-11T11:17:33Z
1979
Fernández Marcos, M. L., Macías, F., Guitián Ojea, F. (1979). A contribution to the study of the stability of clay minerals from the soil solution composition at different pF values. "Clay Minerals". Vol. 14, 29-37
0009-8558
http://hdl.handle.net/10347/11812
(EN)The composition of the soil solution of various horizons of Galician soils was studied to gain insight into the direction of the processes of weathering and neoformation by means of stability diagrams of the clay minerals. The soil solution was extracted by compression at various pF values.
The most significant results are as follows: In all the cases studied the mineral in equilibrium with the soil solution is a 1:1 phyllosilicate. As the pF at which the soil solution is extracted increases, corresponding to smaller pore size, pH increases and silica concentration falls. The stable mineral does not vary significantly between different horizons of the same profile. Each parent material gives rise to a different zonation in the stability diagrams. The predictions of the stability diagrams are in general agreement with the mineralogical data of the clays of the horizons in question.
Finally, weathering processes in Galicia are briefly commented on.
(ES)Se realiza un estudio de la composición de la solución del suelo extraída por compresión a diferentes valores de pF como medio de conocer la dirección de los procesos de alteración y
neoformación en diversos horizontes de suelos de Galicia, utilizando diagramas de estabilidad de los minerales de la arcilla.
Los resultados más significativos son los siguientes: En todos los casos estudiados el mineral en
equilibrio con la solución del suelo es un filosilicato 1:1. La solución extraída a valores crecientes de pF, que corresponden a tamaños de poros más pequeños, presenta valores de pH más altos y disminución de
la concentración de sílice. No se aprecian diferencias significativas en cuanto al mineral estable en los
diferentes horizontes de un mismo perfil. Para cada material original se aprecia una diferente zonaci6n en los diagramas de estabilidad. Las predicciones de los diagramas de estabilidad están generalmente de
acuerdo con los datos mineralógicos de las arcillas de los horizontes correspondientes. Finalmente se realizan unas breves consideraciones sobre los procesos de alteración en Galicia.
eng
Mineralogical Society
© Mineralogical Society
open access
Materias::Investigación::25 Ciencias de la tierra y del espacio::2511 Ciencias del suelo (Edafología)::251110 Mineralogía de suelos
A contribution to the study of the stability of clay minerals from the soil solution composition at different pF values
journal article
http://www.minersoc.org/pages/Archive-CM/Volume_14/14-1-29.pdf
oai:minerva.usc.es:10347/266282021-07-29T02:02:26Zcom_10347_2916com_10347_2891com_10347_2888com_10347_227com_10347_2973com_10347_2889col_10347_12324col_10347_11709
Gómez-Orellana Rodríguez, Luis
Ramil Rego, Pablo
Ferreiro da Costa, Javier
Muñoz Sobrino, Castor
Universidade de Santiago de Compostela. Departamento de Botánica
Universidade de Santiago de Compostela. Instituto de Biodiversidade Agraria e Desenvolvemento Rural (IBADER)
2021-07-28T08:42:10Z
2021-07-28T08:42:10Z
2021
Gómez-Orellana, L., Ramil-Rego, P., Ferreiro da Costa, J. and Muñoz Sobrino, C. (2021), Holocene environmental change on the Atlantic coast of NW Iberia as inferred from the Ponzos wetland sequence. Boreas. https://doi.org/10.1111/bor.12535
http://hdl.handle.net/10347/26628
10.1111/bor.12535
1502-3885
The intertidal environment of the Ponzos beach (NW Iberian Peninsula) hosts a sedimentary sequence (including large wood fragments) deposited during the first half of the Holocene in a hygrophilous continental wetland. Pollen and macrofossil data alongside radiocarbon dating allow reconstruction of the changes that occurred during the Early and Middle Holocene in the landscape of the NW Iberia coastal lowlands, as well as the local wetland plant communities, in response to the climate variations and the eustatic sea-level oscillations. The sequence represents the evolution of a coastal wetland from its initial phases as a hygrophilous wetland towards the subsequent installation of a freshwater lagoon. Pollen data show the dominant role of Atlantic (mainly deciduous) woody taxa, the scarcity of conifers and the lack of Mediterranean elements in the coastal landscapes around the Ponzos site. The presence and abundance of some taxa such as deciduous Quercus, Castanea, Fagus, Tilia and Ulmus during the Early Holocene provides further support for the occurrence of glacial refuges in the Cantabrian-Atlantic area during the Last Glaciation. The diverse vegetation that characterizes the modern landscapes in this territory established later, spreading from these glacial reservoirs of biodiversity. In this sense, the notable and early presence of Fagus at the beginning of the Holocene, a tree also previously recorded during several phases of the Last Glacial Cycle on the NW Iberia coasts, is noteworthy. In addition, during the Early and Middle Holocene are recorded other trees that are currently extirpated as natural taxa in the area, such as Pinus, Tilia and Carpinus
SI
eng
Wiley
© 2021 The Authors. Boreas published by John Wiley & Sons Ltd on behalf of The Boreas Collegium. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
open access
Holocene environmental change on the Atlantic coast of NW Iberia as inferred from the Ponzos wetland sequence
journal article
VoR
https://doi.org/10.1111/bor.12535
oai:minerva.usc.es:10347/311702024-02-23T11:17:19Zcom_10347_2973com_10347_2889com_10347_227com_10347_2956com_10347_2893com_10347_2888col_10347_11709col_10347_9747
Fernández‐Labrada, Miguel
López‐Mosquera, María Elvira
García Calvo, Lucio
Barrio, José Carlos
López‐Fabal, Adolfo
Universidade de Santiago de Compostela. Departamento de Produción Vexetal e Proxectos de Enxeñaría
Universidade de Santiago de Compostela. Instituto de Biodiversidade Agraria e Desenvolvemento Rural (IBADER)
2023-11-06T12:53:00Z
2023-11-06T12:53:00Z
2023-07-01
Animal Science Journal, 94(1), e13849
1344-3941
http://hdl.handle.net/10347/31170
10.1111/asj.13849
1740-0929
In this work, 124 samples of slurry from 32 commercial farms of three animal categories (lactating sows, nursery piglets, and growing pigs) were studied. The samples were collected in summer and winter over two consecutive years and analyzed for physicochemical properties, macronutrient and micronutrient, heavy metals, and major microbiological indicators. The results were found to be influenced by farm type and to deviate especially markedly in nursery piglets, probably as a consequence of differences in pig age, diet, and management. The main potential hazards of the slurries can be expected to arise from their high contents in heavy metals (Cu and Zn), especially in the nursery piglet group, and from the high proportion of samples testing positive for Salmonella spp. (66%). Linear and nonlinear predictive equations were developed for each animal category and the three as a whole. Dry matter, which was highly correlated with N, CaO, and MgO contents, proved the best predictor of fertilizer value. Using an additional predictor failed to improve the results but nonlinear and farm-specific equations did. Rapid on-site measurements can improve the accuracy of fertilizer value estimates and help optimize the use of swine slurry as a result
This work was supported by the Xunta de Galicia (Unidad Mixta de Investigacion, Desarrollo e Innovacion sobre el Sector Cárnico) and by the pre-doctoral grant of Miguel Fernández-Labrada from “Programa de ayudas a la etapa predoctoral” of the Xunta de Galicia (Consellería de Educacion, Universidade e Formacion Profesional) (grant number ED481A-2020/130)
SI
eng
Wiley
© 2023 The Authors. Animal Science Journal published by John Wiley & Sons Australia, Ltd on behalf of Japanese Society of Animal Science. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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open access
Electrical conductivity
Fertilizer value
Pig slurry
Prediction model
Hazards of swine slurry: Heavy metals, bacteriology, and overdosing—Physicochemical models to predict the nutrient value
journal article
VoR
https://doi.org/10.1111/asj.13849
94
1
Animal Science Journal
oai:minerva.usc.es:10347/117162021-04-05T08:24:22Zcom_10347_2917com_10347_2891com_10347_2888com_10347_227com_10347_2973com_10347_2889col_10347_11706col_10347_11709
Fernández Marcos, María Luisa
Macías Vázquez, Felipe
Universidade de Santiago de Compostela. Departamento de Edafoloxía e Química Agrícola
2014-10-27T14:00:09Z
2014-10-27T14:00:09Z
1989
Fernández Marcos, María Luisa, Macías Vázquez, Felipe (1989). Neoformacion de minerales de la arcilla en la Espana Peninsular: tendencias termodinamicas basadas en la composicion de las aguas de los rios españoles. "Cuadernos do Laboratorio Xeolóxico de Laxe", vol. 14, 19-28
0213-4497
http://hdl.handle.net/10347/11716
Stable or metastabie minerals are established for 381 sampling points from river water compositions for every spanish watershed aiong the years 1974-75, 1975-76, 1981-82, 1982-83 and 1983-84, as published by the spanish Department of Public Works.
Phase diagrams for the systems SiO2-Al2O3-H2O, K2O-SiO2-Al2O3-H2O, Na2O-SiO2-Al2O3-H2O, MgO-SiO2-Al2O3-H2O, and CaO-SiO2-Al2O3-H2O, for 298 K and 1 atm. conditions, are used in order to determine the mineraiogical stability, and therefore neoformation trends. Stable and metastable phases were taken into account to draw the diagrams (Fernandez Marcos and Macias, 1987).
The prevailing trend in the Peninsula, according to this method, is towards kaolinite neoformation. Nevertheless differences are observed between watersheds. So kaolinite is the only stable mineral neoformed in the North watersheds while there exist severa! stable minerals (kaolinite, mica, (kaolinite, mica, chlorite, pyrophillite) or metastable ones (smectite) in the Tajo, Guadiana, Guadalquivir, South, Jucar, Segura and East Pyrenees watersheds, depending on sampling point and date.
Geographic distribution of different minerals is satisfactorily explained by taking into account: rainfall distribution, sileceous or calcareous nature of ground, and upper, medium or lower position in the river course.
spa
Ediciós do Castro
Diagramas de equilibrio
Neoformación de arcillas
Estabilidad de arcillas
Clay mineral stability
Equilibrium diagram
Kaolinite
Metastable mineral
Neoformation
Watershed
Spain
Materias::Investigación::25 Ciencias de la tierra y del espacio::2511 Ciencias del suelo (Edafología)::251110 Mineralogía de suelos
Neoformacion de minerales de la arcilla en la Espana Peninsular: tendencias termodinamicas basadas en la composicion de las aguas de los rios españoles
journal article
http://www.udc.es/files/iux/almacen/articulos/cd14_art02.pdf
open access
oai:minerva.usc.es:10347/329122024-03-21T09:21:44Zcom_10347_2895com_10347_2890com_10347_2888com_10347_227com_10347_2990com_10347_2889com_10347_2919com_10347_2891com_10347_2973com_10347_2956com_10347_2893com_10347_2924col_10347_12328col_10347_11719col_10347_10699col_10347_11709col_10347_9747col_10347_12284
Fernández Vidal, Xosé Ramón
Fernández Canto, Nerea
Romero Rodríguez, María Ángeles
Ramos Cabrer, Ana María
Pereira Lorenzo, Santiago
Lombardero Fernández, Matilde
Universidade de Santiago de Compostela. Centro de Investigación en Tecnoloxías da Información
Universidade de Santiago de Compostela. Departamento de Anatomía e Produción Animal
Universidade de Santiago de Compostela. Departamento de Física Aplicada
Universidade de Santiago de Compostela. Departamento de Produción Vexetal e Proxectos de Enxeñaría
Universidade de Santiago de Compostela. Departamento de Química Analítica, Nutrición e Bromatoloxía
Universidade de Santiago de Compostela. Instituto de Biodiversidade Agraria e Desenvolvemento Rural (IBADER)
2024-02-26T16:53:05Z
2024-02-26T16:53:05Z
2024
Food Control, Volume 158, 2024, 110198
0956-7135
http://hdl.handle.net/10347/32912
10.1016/j.foodcont.2023.110198
Quality control of flour is essential to control the quality of bread produced from it. We propose a control method based on the morphological characteristics of the granules of starch. The automation of the identification, segmentation and determination of the average size of the granules of starch of each of the cereals that make up a flour, from microscopy images, is an essential procedure for producers who want to produce bread under the protected geographical indication (PGI) ‘Galician Bread’. This identification and counting procedure, if performed manually, is a tedious activity for a trained expert, and is very time consuming. Thus, automating this task would streamline the process, in addition to saving a great deal of time. This paper addresses this problem by using deep learning approaches (Mask R–CNN) to predict the type of the granule of starch and its size for the first time. The trained models are then evaluated with the same raw microscopy images of these granules observed under polarized light, as has been previouly used for manual identification and counting. A dataset comprising 1308 2564 × 1924-pixel images is analysed. The images contain 17000 labelled granules of starch for two types of wheat: commercial wheat flour from ‘Castilla’ (type 0) and the Galician autochthonous flour ‘Caaveiro’ (type 1). The number of samples is approximately the same for each class. Instance segmentation with Mask R–CNN (Model II) achieved valid results for unseen images, with a categorical global accuracy of about 88.6% and with a discrepancy with respect to the areas of the granules as estimated by a human expert of less than 4%. The performance achieved by Mask R–CNN produces a strong correlation between the results of an expert and the results of the network, confirming the practical validity of our proposal
This study was funded by the project ‘Farm to Fork of Autochthonous Cereals in Ecological vs. Conventional Management’ (CECOLECOPAN). Grants 2021 of “State Subprogram for Knowledge Generation” in the framework of State Program to Promote Scientific-Technical Research and its Transfer of the State Plan for Scientific and Technical Research and Innovation 2021–2023. PID2021-123905OB-I00. Nerea Fernández-Canto is grateful to the Xunta de Galicia for her predoctoral research fellowship (ED481A-2019/263)
SI
eng
Elsevier
© 2023 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/bync/4.0/)
Atribución-NoComercial 4.0 Internacional
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open access
Flour starch granules
Polarized microscopy
Manual starch identification and counting
Automatic starch identification and counting
Neural networks
Elliptical fit
Instance segmentation
Mask R–CNN
Neural networks allow the automatic verification of the type of flour, analysing the starch granule morphology, to ensure the protected geographical indication ‘Galician Bread’
journal article
VoR
https://doi.org/10.1016/j.foodcont.2023.110198
158
110198
Food Control
oai:minerva.usc.es:10347/215642020-04-21T02:02:08Zcom_10347_2916com_10347_2891com_10347_2888com_10347_227com_10347_2904com_10347_2890com_10347_2973com_10347_2889col_10347_12324col_10347_12265col_10347_11709
Ayuso, Manuel
Ramil Rego, Pablo
Landín Pérez, Mariana
Gallego, Pedro P.
Barreal, M. Esther
Universidade de Santiago de Compostela. Departamento de Botánica
Universidade de Santiago de Compostela. Departamento de Farmacoloxía, Farmacia e Tecnoloxía Farmacéutica
Universidade de Santiago de Compostela. Instituto de Biodiversidade Agraria e Desenvolvemento Rural (IBADER)
2020-04-20T17:04:42Z
2020-04-20T17:04:42Z
2017
Ayuso M, Ramil-Rego P, Landin M, Gallego PP and Barreal ME (2017) Computer-Assisted Recovery of Threatened Plants: Keys for Breaking Seed Dormancy of Eryngium viviparum. Front. Plant Sci. 8:2092. doi: 10.3389/fpls.2017.02092
http://hdl.handle.net/10347/21564
10.3389/fpls.2017.02092
1664-462X
Many endangered plants such as Eryngium viviparum (Apiaceae) present a poor germination rate. This fact could be due to intrinsic and extrinsic seed variability influencing germination and dormancy of seeds. The objective of this study is to better understand the physiological mechanism of seed latency and, through artificial intelligence models, to determine the factors that stimulate germination rates of E. viviparum seeds. This description could be essential to prevent the disappearance of endangered plants. Germination in vitro was carried out under different dormancy breaking and incubation procedures. Percentages of germination, viability and E:S ratio were calculated and seeds were dissected at the end of each assay to describe embryo development. The database obtained was modeled using neurofuzzy logic technology. We have found that the most of Eryngium seeds (62.6%) were non-viable seeds (fully empty or without embryos). Excluding those, we have established the germination conditions to break seed dormancy that allow obtaining a real germination rate of 100%. Advantageously, the best conditions pointed out by neurofuzzy logic model for embryo growth were the combination of 1 mg L−1 GA3 (Gibberellic Acid) and high incubation temperature and for germination the combination of long incubation and short warm stratification periods. Our results suggest that E. viviparum seeds present morphophysiological dormancy, which reduce the rate of germination. The knowledge provided by the neurofuzzy logic model makes possible not just break the physiological component of dormancy, but stimulate the embryo development increasing the rate of germination. Undoubtedly, the strategy developed in this work can be useful to recover other endangered plants by improving their germination rate and uniformity favoring their ex vitro conservation
This research was supported/partially supported by TREMEDAL—Inland wetlands of Northern Iberian Peninsula: management and restoration of mires and wet environments European Union (LIFE11 NAT/ES/000707, 2012–2015) and “Red de Uso Sostenible de Recursos y Residuos” funded by XUNTA DE GALICIA (R2014/019)
SI
eng
Frontiers Media
Copyright © 2017 Ayuso, Ramil-Rego, Landin, Gallego and Barreal. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms
Atribución 4.0 Internacional
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open access
Apiaceae
Artificial intelligence
Conservation
Germination
Dormancy
Endemic plant
Embryo seed ratio
Underdeveloped embryo
Computer-Assisted Recovery of Threatened Plants: Keys for Breaking Seed Dormancy of Eryngium viviparum
journal article
VoR
https://doi.org/10.3389/fpls.2017.02092
oai:minerva.usc.es:10347/252672021-04-06T02:05:44Zcom_10347_2917com_10347_2891com_10347_2888com_10347_227com_10347_2973com_10347_2889col_10347_11706col_10347_11709
González Rodríguez, Sara
Fernández Marcos, María Luisa
Universidade de Santiago de Compostela. Departamento de Edafoloxía e Química Agrícola
Universidade de Santiago de Compostela. Instituto de Biodiversidade Agraria e Desenvolvemento Rural (IBADER)
2021-04-05T08:34:06Z
2021-04-05T08:34:06Z
2021
Soil Syst. 2021, 5(2), 22; https://doi.org/10.3390/soilsystems5020022
http://hdl.handle.net/10347/25267
10.3390/soilsystems5020022
2571-8789
Sorption of oxyanions by soils and mineral surfaces is of interest due to their role as nutrients or pollutants. Volcanic soils are variable charge soils, rich in active forms of aluminum and iron, and capable of sorbing anions. Sorption and desorption of vanadate, arsenate, and chromate by two African andosols was studied in laboratory experiments. Sorption isotherms were determined by equilibrating at 293 K soil samples with oxyanion solutions of concentrations between 0 and 100 mg L−1 V, As, or Cr, equivalent to 0−2.0 mmol V L−1, 0−1.3 mmol As L−1, and 0−1.9 mmol Cr L−1, in NaNO3; V, As, or Cr were determined by ICP-mass spectrometry in the equilibrium solution. After sorption, the soil samples were equilibrated with 0.02 M NaNO3 to study desorption. The isotherms were adjusted to mathematical models. After desorption with NaNO3, desorption experiments were carried out with a 1 mM phosphate. The sorption of vanadate and arsenate was greater than 90% of the amount added, while the chromate sorption was much lower (19–97%). The sorption by the Silandic Andosol is attributed to non-crystalline Fe and Al, while in the Vitric Andosol, crystalline iron species play a relevant role. The V and Cr sorption isotherms fitted to the Freundlich model, while the As sorption isotherms conformed to the Temkin model. For the highest concentrations of oxyanions in the equilibrating solution, the sorbed concentrations were 37–38 mmol V kg−1, 25 mmol As kg−1, and 7.2–8.8 mmol Cr kg−1. The desorption was low for V and As and high for Cr. The comparison of the sorption and desorption isotherms reveals a pronounced hysteresis for V in both andosols and for Cr in the Silandic Andosol. Phosphate induced almost no V desorption, moderate As desorption, and considerable Cr desorption
SI
eng
MDPI
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/)
Atribución 4.0 Internacional
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open access
Andosol
Silandic Andosol
Vitric Andosol
Andosols
Oxyanions
Potentially toxic elements
Rwanda
São Tomé and Príncipe
Freundlich isotherm
Temkin isotherm
Sorption and Desorption of Vanadate, Arsenate and Chromate by Two Volcanic Soils of Equatorial Africa
journal article
VoR
https://doi.org/10.3390/soilsystems5020022
oai:minerva.usc.es:10347/299792023-01-24T03:02:42Zcom_10347_2917com_10347_2891com_10347_2888com_10347_227com_10347_2973com_10347_2889col_10347_11706col_10347_11709
Antelo Rodríguez, Maite
Illera Vives, Marta
Fernández Labrada, Miguel
Seoane Labandeira, Socorro
López Mosquera, María Elvira
Universidade de Santiago de Compostela. Instituto de Biodiversidade Agraria e Desenvolvemento Rural (IBADER)
Universidade de Santiago de Compostela. Departamento de Edafoloxía e Química Agrícola
2023-01-23T11:40:34Z
2023-01-23T11:40:34Z
2022
Rodríguez, M.A., Illera-Vives, M., Labrada, M.F. et al. Improving growing substrates by adding the seaweed Cystoseira baccata. J Appl Phycol 34, 3177–3188 (2022). https://doi.org/10.1007/s10811-022-02846-4
0921-8971
http://hdl.handle.net/10347/29979
10.1007/s10811-022-02846-4
1573-5176
We examined the impact of adding the seaweed Cystoseira baccata (Ochrophyta, Sargassaceae) in various forms to two different growing substrates: pine bark and gorse compost. Specifically, we examined the influence of the seaweed on the physical and chemical properties of the substrates, and on their agronomic performance on a lettuce crop. The seaweed was used in a 20% (v/v) proportion and three different forms, namely: fresh (FS), washed fresh (WFS), and washed and dried (WDS). The mixed substrates exhibited no signs of instability. FS and DWS increased the total water retention capacity of pine bark by 20% and 27%, respectively. Adding the seaweed in any of its three forms to this type of substrate, which is poor in nutrients and has a low electrical conductivity (EC), significantly increased its P, K, Mg and Na contents, as well as its EC (from 0.08 dS m–1 in the control substrate to 0.69, 0.12 and 0.27 dS m–1 in those containing FS, WFS and WDS, respectively). On the other hand, only in fresh form (FS) altered the salinity and total K content of a substrate rich in nutrients and salts such gorse compost (from 0.89 to 1.42 dS m−1 in terms of EC and 0.59% to 0.98% in K). All mixtures performed well as substrates for a lettuce crop. Those containing DWS increased aerial mass in gorse compost, while any of the tested formats increased aerial mass in pine bark
Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature
SI
eng
Springer
© 2022 The Authors. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/
Atribución 4.0 Internacional
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open access
Brown seaweed
Growing media
Physical properties
Salinity
Germination
Lettuce
Improving growing substrates by adding the seaweed Cystoseira baccata
journal article
VoR
https://doi.org/10.1007/s10811-022-02846-4
oai:minerva.usc.es:10347/230512020-06-24T02:00:49Zcom_10347_2916com_10347_2891com_10347_2888com_10347_227com_10347_2973com_10347_2889col_10347_12324col_10347_11709
Martínez Sánchez, Susana
Mollicone, Danilo
Universidade de Santiago de Compostela. Departamento de Botánica
Universidade de Santiago de Compostela. Instituto de Biodiversidade Agraria e Desenvolvemento Rural (IBADER)
2020-06-23T10:32:51Z
2020-06-23T10:32:51Z
2012
Martínez, S.; Mollicone, D. From Land Cover to Land Use: A Methodology to Assess Land Use from Remote Sensing Data. Remote Sens. 2012, 4, 1024-1045
http://hdl.handle.net/10347/23051
10.3390/rs4041024
2072-4292
The “land use” concept has evolved during recent decades and it is now considered as the socioeconomic function of land. Land use representation and land use change assessment through remote sensing still remains one of the major challenges for the remote sensing scientific community. In this paper we present a methodological approach based on remote sensing techniques to assess land use in accordance with the requirements of the United Nations Framework Climate Change Convention, UNFCCC (1995). The methodology is based mainly on the recognition of the land key elements and their function and on the adoption of the “predominant land use” criteria in the classification scheme settled by rules. The concept that underpins these rules is that the land use function of land can be expressed through hierarchical relationships among key land elements, and that these functional relationships are based on thresholds reflecting the relevance and predominance of key land elements in the observed area. When analyses are supported by high (10–30 m) or very high ( < 10 m) spatial resolution remote sensing data, the methodology provides a systematic approach for the representation of land use that is consistent with the concepts and methodologies developed by the International Panel on Climate Change(IPCC) to fulfill UNFCCC commitments. In particular, data with high and very high spatial resolution provide good results, with overall accuracies above 87% in the identification of key land elements that characterize land use classes. The methodology could be used to assess land use in any context (e.g., for any land use category or in any country and region) as it is based on the definition of user/project rules that should be tailored on the land use function of any territory.
The Autonomous Region of Galicia (Spain) has financed Susana Martínez for this study through the Research Program PGIDT-INCITE-Xunta de Galicia
SI
eng
MDPI
© 2012 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/)
open access
Land cover
Land use
Key land element
Remote sensing
UNFCCC
From Land Cover to Land Use: A Methodology to Assess Land Use from Remote Sensing Data
journal article
VoR
https://doi.org/10.3390/rs4041024