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Papers by Inazio Martinez de Arano

Routledge eBooks, Nov 2, 2022

Forest Policy and Economics, 2018

Soil Science, Apr 1, 2011

ABSTRACT The main objective of this research was to study the oxidizability of soil organic matte... more ABSTRACT The main objective of this research was to study the oxidizability of soil organic matter (SOM). Forty-one surface horizons of forest soils under Fagus sylvatica L. developed on different lithologies (limestones, sandstones, marlstones, and shales) were sampled. The oxidizability of SOM was assessed by reacting air-dried samples with 33 mmol/L of potassium permanganate for different incubation times (1, 3, 6, and 24 h). None of the soil properties analyzed (including organic C content and oxidizability of SOM) showed significant differences (P < 0.05) based on the lithology of the parent material. The amount of oxidized C (OCper) at each reaction time was strongly correlated to the initial organic C content of the soil (r2 > 0.850). The cumulative amount of OCper increased with time following an asymptotic trend that fitted to a power model (r2 > 0.700); oxidation rates showed that the first hour was the most reactive (0.069-0.094 g of C g−1 of soil h−1). On average, 9% of the total initial organic C was oxidized at 1 h, 12% at 3 h, 15% at 6 h, and 23% at 24 h, which are values comparable to those found in previous studies. Principal component analysis revealed that the samples were composed of two groups of soils. Both groups showed an increase in total soil organic C content (and oxidizability) with increasing contents of reactive soil colloids (clay and metal-SOM complexes) but had different slopes in their relationship to the scores of the first principal component, suggesting different dynamics.

Presses de Sciences Po eBooks, Nov 28, 2016

Journal of innovative science and engineering, Jun 24, 2019

Soil and Tillage Research

Sustainability

In recent years, the potential of the forest-based bioeconomy to provide competitiveness, differe... more In recent years, the potential of the forest-based bioeconomy to provide competitiveness, differentiation, and sustainability to the European economy has often been claimed. Interestingly, regions, as territorial units with their own political and socioeconomic strategies, have been highlighted as the most suitable targets for the development of the European forest-based bioeconomy. Here, using the case method, we evaluated the development of the forest-based bioeconomy in three European regions (i.e., North Karelia in Finland, North Rhine-Westphalia in Germany, the Basque Country in Spain), by appraising the status of 10 previously identified key drivers through primary (interviews with experts) and secondary (literature review) sources of information. In our analysis, North Karelia and the Basque Country obtained the highest and lowest score, respectively, with regard to forest-based bioeconomy development. In any case, for the successful development of the forest-based bioeconomy...

Prerequisites Students should preferably hold an undergraduate degree with relevance to environme... more Prerequisites Students should preferably hold an undergraduate degree with relevance to environmental sciences, biology, geography or ecology, although students with a background in social and political sciences are also welcome and should be able to follow the course provided they are acquainted with basic principles of Earth and physical sciences. A reasonable level of English speaking and writing skills are recommended to follow the course.

Forest Policy and Economics, 2021

Applied Soil Ecology, 2016

Soil microbial community function is influenced, among other factors, by the chemical composition... more Soil microbial community function is influenced, among other factors, by the chemical composition of C substrates, which in turn is dependent on the overlying tree species and the soil environmental conditions. The aim of this study was to examine how different dominant forest species and soil properties are related to soil microbial community level physiological profiles (CLPPs) in temperate forests. Forest floor properties and physico-chemical properties of the topsoil (0-30 cm) and the subsoil (30-60 cm) were studied in National Forest Inventory (NFI) plots differing in the dominant tree species (Quercus robur L., Fagus sylvatica L., Quercus ilex L. and Pinus radiata D. Don) but affected by similar climatic conditions. Soil microbial functional activity was assessed by the MicroResp analytical system. The only forest floor properties that differed significantly under different tree species were the concentrations of Ca, Mg and K. The forest floor of oak plots was characterized by higher concentrations of Mg and K, and the forest floor in holm oak plots by higher concentrations of Ca than in the other stands. Holm oak plots were also characterized by significantly higher concentrations of topsoil organic matter, nitrogen, phosphorus and potassium than beech, oak and pine, as well as a higher cation exchange capacity. Substrate C respiration was always higher for carboxylic acids than other substrates and the activity of soil microbial communities was higher under beech and holm oak than under oak and pine. The Mantel partial test and forward stepwise regression revealed that the soil microbial activity in the topsoil was mainly related to the topsoil N concentration. Most of the variation in CLPP in the subsoil was related to the concentration of Ca and pH in the subsoil. In conclusion, the soil microbial functional activity was related to both forest species and soil properties 2015 Elsevier B.V. All rights reserved.

Forest Policy and Economics, 2018

Soil Science, Apr 1, 2011

ABSTRACT The main objective of this research was to study the oxidizability of soil organic matte... more ABSTRACT The main objective of this research was to study the oxidizability of soil organic matter (SOM). Forty-one surface horizons of forest soils under Fagus sylvatica L. developed on different lithologies (limestones, sandstones, marlstones, and shales) were sampled. The oxidizability of SOM was assessed by reacting air-dried samples with 33 mmol/L of potassium permanganate for different incubation times (1, 3, 6, and 24 h). None of the soil properties analyzed (including organic C content and oxidizability of SOM) showed significant differences (P < 0.05) based on the lithology of the parent material. The amount of oxidized C (OCper) at each reaction time was strongly correlated to the initial organic C content of the soil (r2 > 0.850). The cumulative amount of OCper increased with time following an asymptotic trend that fitted to a power model (r2 > 0.700); oxidation rates showed that the first hour was the most reactive (0.069-0.094 g of C g−1 of soil h−1). On average, 9% of the total initial organic C was oxidized at 1 h, 12% at 3 h, 15% at 6 h, and 23% at 24 h, which are values comparable to those found in previous studies. Principal component analysis revealed that the samples were composed of two groups of soils. Both groups showed an increase in total soil organic C content (and oxidizability) with increasing contents of reactive soil colloids (clay and metal-SOM complexes) but had different slopes in their relationship to the scores of the first principal component, suggesting different dynamics.

Presses de Sciences Po eBooks, Nov 28, 2016

Soil and Tillage Research

Routledge eBooks, Nov 2, 2022

Forest Policy and Economics, 2018

Soil Science, Apr 1, 2011

ABSTRACT The main objective of this research was to study the oxidizability of soil organic matte... more ABSTRACT The main objective of this research was to study the oxidizability of soil organic matter (SOM). Forty-one surface horizons of forest soils under Fagus sylvatica L. developed on different lithologies (limestones, sandstones, marlstones, and shales) were sampled. The oxidizability of SOM was assessed by reacting air-dried samples with 33 mmol/L of potassium permanganate for different incubation times (1, 3, 6, and 24 h). None of the soil properties analyzed (including organic C content and oxidizability of SOM) showed significant differences (P < 0.05) based on the lithology of the parent material. The amount of oxidized C (OCper) at each reaction time was strongly correlated to the initial organic C content of the soil (r2 > 0.850). The cumulative amount of OCper increased with time following an asymptotic trend that fitted to a power model (r2 > 0.700); oxidation rates showed that the first hour was the most reactive (0.069-0.094 g of C g−1 of soil h−1). On average, 9% of the total initial organic C was oxidized at 1 h, 12% at 3 h, 15% at 6 h, and 23% at 24 h, which are values comparable to those found in previous studies. Principal component analysis revealed that the samples were composed of two groups of soils. Both groups showed an increase in total soil organic C content (and oxidizability) with increasing contents of reactive soil colloids (clay and metal-SOM complexes) but had different slopes in their relationship to the scores of the first principal component, suggesting different dynamics.

Presses de Sciences Po eBooks, Nov 28, 2016

Journal of innovative science and engineering, Jun 24, 2019

Soil and Tillage Research

Sustainability

In recent years, the potential of the forest-based bioeconomy to provide competitiveness, differe... more In recent years, the potential of the forest-based bioeconomy to provide competitiveness, differentiation, and sustainability to the European economy has often been claimed. Interestingly, regions, as territorial units with their own political and socioeconomic strategies, have been highlighted as the most suitable targets for the development of the European forest-based bioeconomy. Here, using the case method, we evaluated the development of the forest-based bioeconomy in three European regions (i.e., North Karelia in Finland, North Rhine-Westphalia in Germany, the Basque Country in Spain), by appraising the status of 10 previously identified key drivers through primary (interviews with experts) and secondary (literature review) sources of information. In our analysis, North Karelia and the Basque Country obtained the highest and lowest score, respectively, with regard to forest-based bioeconomy development. In any case, for the successful development of the forest-based bioeconomy...

Prerequisites Students should preferably hold an undergraduate degree with relevance to environme... more Prerequisites Students should preferably hold an undergraduate degree with relevance to environmental sciences, biology, geography or ecology, although students with a background in social and political sciences are also welcome and should be able to follow the course provided they are acquainted with basic principles of Earth and physical sciences. A reasonable level of English speaking and writing skills are recommended to follow the course.

Forest Policy and Economics, 2021

Applied Soil Ecology, 2016

Soil microbial community function is influenced, among other factors, by the chemical composition... more Soil microbial community function is influenced, among other factors, by the chemical composition of C substrates, which in turn is dependent on the overlying tree species and the soil environmental conditions. The aim of this study was to examine how different dominant forest species and soil properties are related to soil microbial community level physiological profiles (CLPPs) in temperate forests. Forest floor properties and physico-chemical properties of the topsoil (0-30 cm) and the subsoil (30-60 cm) were studied in National Forest Inventory (NFI) plots differing in the dominant tree species (Quercus robur L., Fagus sylvatica L., Quercus ilex L. and Pinus radiata D. Don) but affected by similar climatic conditions. Soil microbial functional activity was assessed by the MicroResp analytical system. The only forest floor properties that differed significantly under different tree species were the concentrations of Ca, Mg and K. The forest floor of oak plots was characterized by higher concentrations of Mg and K, and the forest floor in holm oak plots by higher concentrations of Ca than in the other stands. Holm oak plots were also characterized by significantly higher concentrations of topsoil organic matter, nitrogen, phosphorus and potassium than beech, oak and pine, as well as a higher cation exchange capacity. Substrate C respiration was always higher for carboxylic acids than other substrates and the activity of soil microbial communities was higher under beech and holm oak than under oak and pine. The Mantel partial test and forward stepwise regression revealed that the soil microbial activity in the topsoil was mainly related to the topsoil N concentration. Most of the variation in CLPP in the subsoil was related to the concentration of Ca and pH in the subsoil. In conclusion, the soil microbial functional activity was related to both forest species and soil properties 2015 Elsevier B.V. All rights reserved.

Forest Policy and Economics, 2018

Soil Science, Apr 1, 2011

ABSTRACT The main objective of this research was to study the oxidizability of soil organic matte... more ABSTRACT The main objective of this research was to study the oxidizability of soil organic matter (SOM). Forty-one surface horizons of forest soils under Fagus sylvatica L. developed on different lithologies (limestones, sandstones, marlstones, and shales) were sampled. The oxidizability of SOM was assessed by reacting air-dried samples with 33 mmol/L of potassium permanganate for different incubation times (1, 3, 6, and 24 h). None of the soil properties analyzed (including organic C content and oxidizability of SOM) showed significant differences (P < 0.05) based on the lithology of the parent material. The amount of oxidized C (OCper) at each reaction time was strongly correlated to the initial organic C content of the soil (r2 > 0.850). The cumulative amount of OCper increased with time following an asymptotic trend that fitted to a power model (r2 > 0.700); oxidation rates showed that the first hour was the most reactive (0.069-0.094 g of C g−1 of soil h−1). On average, 9% of the total initial organic C was oxidized at 1 h, 12% at 3 h, 15% at 6 h, and 23% at 24 h, which are values comparable to those found in previous studies. Principal component analysis revealed that the samples were composed of two groups of soils. Both groups showed an increase in total soil organic C content (and oxidizability) with increasing contents of reactive soil colloids (clay and metal-SOM complexes) but had different slopes in their relationship to the scores of the first principal component, suggesting different dynamics.

Presses de Sciences Po eBooks, Nov 28, 2016

Soil and Tillage Research