Carlos Gregorio Hernández Díaz-Ambrona

Universidad Politécnica de Madrid | UPM · E.T.S.I. Agronómica, Alimentaria y de Biosistemas

Cities depend directly on surrounding lands for food, water, energy, and other fundamental issues. Potential disturbances caused by climate change in these resources may have a negative impact on populations. Therefore, this study’s predominant objective was to evaluate the perception of the Indigenous Kichwa people living in the city of Puyo, loca...

Understanding the dynamics of the soil–vegetation–atmosphere (SVA) system, particularly in arid and semiarid regions, remains challenging due to its intricate and interdependent nature. This system creates problems for rangeland administration, such as insurance and risk management. This paper focuses on the complex interactions within the SVA syst...

Given the decrease in water availability for agriculture caused by climate change (CC) in Mediterranean environments, it is necessary to use water efficiently in food production. As stated in the PNACC (National Plan for Adaptation to Climate Change), knowing the water demand for agricultural use before and after adaptation to CC is essential. In t...

The bioeconomy and the circular economy are novel aspects that are attracting growing interest. However, despite this, there are few teaching materials related to these concepts, especially in the agri-food sector. The BIOCIR project (Active learning in bioeconomy and circular economy in agri-food systems) aims to fill this gap by creating audiovis...

The use of natural resources for food production and the identification of viable solutions to problems related to agricultural sustainability are topics of current debate. Our proposed objectives were to: i) determine the agronomic characteristics of strawberry crops in open-field and aeroponic greenhouse production systems, ii) assess the sustain...

Dada la importancia de este sector se hace oportuno la elaboración de un estudio para estimar los costes de producción de leche de vaca en Castilla y León. Este Estudio de costes pretende ser una herramienta para aportar información y transparencia a las relaciones comerciales en el primer eslabón de la cadena y mejorar la competitividad de las exp...

The predominant aim of the current research has been to quantify and map the pattern of changes in land use coverage (LULC), using a variety of tools of geographic information systems. The study area comprises the southern zone of the Diversity and Life Zone (DLZ), located in the Yasuní Biosphere Reserve, within the western Amazonian lowland. The p...

La Junta de Castilla y León, a través de la Consejería de Agricultura, Ganadería y Desarrollo Rural, ha encargado a la Universidad de Valladolid el “Estudio de costes productivos de la uva para vinificación en Castilla y León, en zonas de referencia, para el primer eslabón de la cadena alimentaria” con el objetivo de estimar los costes de producció...

Este Estudio se concibe como una guía para que el viticultor pueda conocer mejor su estructura de costes. Los datos que se pueden extraer del mismo no se pueden tomar como referencias de precios. De la misma forma que otros estudios, como el elaborado por la Organización Interprofesional del Vino de España, este Estudio trata de dar más transparenc...

Rangeland ecosystems comprise more than a third of the global land surface, sustaining essential ecosystem services and livelihoods. In Spain, Southeast Spain includes some of the driest regions; accordingly, rangelands from Murcia and Almeria provinces were selected for this study. We used time series metrics and the Hurst Exponent from rescale ra...

Resumen del cálculo de costes de la producción de uva en la Denominación de Origen Rueda y en la Denominación de Origen Ribera del Duero en la campaña 2021-2022.

La Junta de Castilla y León a través de la Consejería de Agricultura, Ganadería y Desarrollo Rural de la Junta de Castilla y León ha encargado a la Universidad de Valladolid el estudio “Costes mínimos de la producción de uva en la Denominación de Origen Rueda y Ribera del Duero para el año 2022” con el objetivo de estimar los costes de producción q...

The main aim of the current research has been to quantify and map the pattern of changes in land use coverage (LULC), using free data. The study area has been the northern area of the Diversity and Life Strip, located in the Yasuní Biosphere Reserve, considered to be a biodiversity hotspot. The processes performed in order to apply LULC on the Dive...

Although traditional agriculture carried out by ethnic groups is considered for its high biodiversity and important for food security and sovereignty, few studies have investigated the potential of these systems in the interest of promoting a sustainable agricultural development policy according to United Nations Sustainable Development Goals. Usin...

El capítulo analiza el contexto y los retos de la revolución digital en la zona.

Increasing water scarcity is encouraging the use of unconventional water resources. In recent years, the European Union has launched numerous initiatives to promote and facilitate water reuse for agricultural irrigation. Today, the use of reclaimed water for agriculture has become an alternative, reliable and safe source of water supply and an indi...

Land use and land cover change (LULC) is an essential component for the monitoring environmental change and managing natural resources in areas of high natural and cultural biodiver�sity, such as the Amazon biome. This study was conducted in in the northern Amazon of Ecuador, specifically in the Diversity and Life Zone (DLZ) of the Yasuní Biosphere...

This special issue delivers a platform in which researchers expose intersections between algorithm design, software platforms, and hardware architectures to deal with emerging challenges in the scientific field of management of water and water-dependent resources. Since the call for papers was announced in June 2019, this special issue has received...

Greenhouse gas emissions (GHG) from livestock raise the increase of temperature worldwide. They contribute 14.5% of global emissions while enteric fermentation is the largest contributor (39.1%). The main objectives of the current study were: a) to determine the socio-productive characteristics at the household/farm level and b) to estimate the GHG...

Estimates suggest that more than 70% of the world’s rangelands are degraded. The Normalized Difference Vegetation Index (NDVI) is commonly used by ecologists and agriculturalists to monitor vegetation and contribute to more sustainable rangeland management. This paper aims to explore the scaling character of NDVI and NDVI anomaly (NDVIa) time serie...

In the Amazon, the Sumaco Biosphere Reserve (SBR) is considered a key point of natural and cultural diversity. It is populated by several indigenous groups, including the Kichwa, who are characterized by their traditional production systems, which are a means of subsistence and socioecological integration, The objectives were: (a) identify the soci...

Border production systems are a threat to biodiversity hotspots. This is due to the dilemma of conservation or economic maximization, while the amount of carbon footprint (CF) generated by the management of border grazing and livestock is an uncertainty. The objectives of this study were to determine the socio-demographic characteristics of househo...

Agricultural production outlines the constant antagonism between the quest to achieve the highest yields and the need to preserve the physical / chemical properties of soils. The constantly increasing global demand for food prompts producers to apply more agrochemicals in order to increase their production, generating soil degradation, which is a c...

Rangeland degradation caused by increasing misuses remains a global concern. Rangelands have a remarkable spatiotemporal heterogeneity, making them suitable to be monitored with remote sensing. Among the remotely sensed vegetation indices, Normalized Difference Vegetation Index (NDVI) is most used in ecology and agriculture. In this paper, we resea...

The Imbabura Geopark, like many other geoparks around the world, has an alliance between population growth factors, the development of agricultural, industrial and tourist activities, and the need for these activities to be sustainable for the conservation of the geopark. The use of information systems to identify the factors to be addressed is a f...

In the Amazon, the Yasuní Biosphere Reserve (YBR) is considered a natural and cultural diversity hotspot. It is populated by several indigenous groups, including the Kichwa, who are characterized by their traditional systems of production, which are a means of subsistence and socio-ecological integration. The objective of this research was to evalu...

Special Issue "Environmental Sustainability of Agriculture in a Changing Climate" A special issue of Sustainability (ISSN 2071-1050). Deadline for manuscript submissions: 31 December 2021. Manuscript Submission Information Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are register...

In 1952 the Revista de Estudios Agrosociales (REAS) was created, and in 1994 it was renamed Revista Española de Economía Agraria (REEA). Agricultura y Sociedad (AyS) was created in 1976. In 1998 REEA and AyS were combined to create the present Revista Española de Estudios Agrosociales y Pesqueros (REEAP). The main purpose of REAAP is to become a f...

The progressive human needs along with the economic activities, exert an increasing pressure of the natural resources; the environmental problems generated by lifestyles are incompatible with the process of the environment regeneration. The management of natural resources and its sustainability has been an externality in the political, economic, so...

The Yasuni Biosphere Reserve (YBR) occupies a unique biogeographic position in the world, where the richness of the four taxa (amphibians, birds, mammals and vascular plants) reaches maximum diversity. However, threats to species conservation are latent: the opening of roads, illegal logging, the advance of the agricultural frontier, oil extraction...

Developing bioenergy projects determine several challenges for industries engaged in replacing fossil sources of energy. Feedstock availability and sustainability issues have been major aspects for private companies, the farming sector and policy makers. While biofuel debates emerged and sustainability criteria became the focus of attention new alt...

Robust projections of climate impact on crop growth and productivity by crop models are key to designing effective adaptations to cope with future climate risk. However, current crop models diverge strongly in their climate impact projections. Previous studies tried to compare or improve crop models regarding the impact of one single climate variab...

A cropping system model, CropSyst, was used to simulate indicators of sustainability in a representative rainfed agricultural system of the Spanish Central Plateau. Sustainability analyses require long-term series of experimentation, and crop models applied to long-term weather series, enable the evaluation of different management practices. In thi...

Dear Colleagues, We are organizing and editing a Special Issue of the Journal Scientific Programming (IF 1.289, ISSN 1058-9244; https://www.hindawi.com/journals/sp/) entitled "Scientific Programming Tools for Water Management" and would like to invite you to submit a manuscript. The due date for submission is 25 October 2019. May we kindly ask if y...

La supervivencia de los Pueblos Indígenas en Aislamiento (PIAs), Tagaeri – Taromenane en la Amazonía ecuatoriana, está influida por agentes externos y características culturales. El área definida como Zona Intangible para el desplazamiento de los PIAs presenta cierta debilidad geográfica, lo que alterna el superviviencia de estas comunidades. El ob...

La agricultura y la alimentación ocupan un papel destacado en la Agenda 2030 para el Desarrollo Sostenible de las Naciones Unidas. La lucha contra el hambre, la promoción de la salud, la producción y el consumo responsable, el cambio climático, la gestión de los recursos naturales, son algunos de los temas abordados por los objetivos de desarrollo...

Food and Nutritional Security (FNS) is still an outstanding problem, and rural areas of Guatemala demonstrate this by an increase in the undernourished population from 1.4 million in 1991 to 2.5 million in 2014. Some FNS programs were developed in the past, and our research evaluates the following: (1) the critical points perceived by farmers relat...

Farmer field schools (FFSs) emerged in response to the gap left by the worldwide decline in agricultural extension services. With time, this methodology has been adapted to specific rural contexts to solve problems related to the sustainability of peasant-farming systems. In this study we draw upon empirical data regarding the peasant-farming syste...

Smallholder agricultural systems have an important role in world food production. Agricultural smallholders in highland areas of the Mesoamerican dry-corridor are central to improve farming systems. The key issue is that the subsistence smallholders are joint producer-consumers, with insufficient food production due to extreme environmental and wea...

Resumo Este estudo apresenta a construção de um modelo ecofisiológico-matemático (BrCane) para predizer a produtividade potencial-sem restrições nutricionais ou de água, a fim de analisar a sustentabilidade da expansão do cultivo de cana-de-açúcar em novas áreas para produção de etanol. A arquitetura do modelo BRCANE foi concebida para uma planta t...

Climate change impact assessments are plagued with uncertainties from many sources, such as climate projections or the inadequacies in structure and parameters of the impact model. Previous studies tried to account for the uncertainty from one or two of these. Here, we developed a triple-ensemble probabilistic assessment using seven crop models, mu...

La dehesa es un sistema agrosilvopastoral característico de la península Ibérica. Configura un paisaje modelado por el hombre que mantiene los componentes del bosque mediterráneo original. La diversidad, de plantas y animales, presente en este ecosistema favorece su resiliencia y su adaptación al cambio climático. El conocimiento de las característ...

Climate change and its associated higher frequency and severity of adverse weather events require genotypic adaptation. Process-based ecophysiological modelling offers a powerful means to better target and accelerate development of new crop cultivars. Barley (Hordeum vulgare L.) is an important crop throughout the world, and a good model for study...

RESUMEN Las sequías se encuentran entre los tipos más comúnes de desastres, generando enormes impactos socioeconómicos, especialmente cuando se considera el carácter silencioso que tienen. Son cada vez más frecuentes, intensos y de mayor duración, el cúal nos da una idea de lo que puede suceder con la acentuación del cambio climático. Este artículo...

The purpose of this study is to investigate the availability and quality of information for agricultural risk management purposes in a set of African countries. Both the existence of the information and the timely and useful access by stakeholders at micro-meso-macro1 level (and their interconnections) for risk management purposes will be assessed....

Extensive grazing activities in the Mediterranean area will have to confront an increasing risk of drought. This threat poses a challenge to the long-term viability of these activities that play an important role in rural development and have traditionally shaped highly valued ecosystems such as the Dehesa landscape in the Iberian Peninsula. The ai...

Evaluate the behavior of uncontacted indigenous populations in the Amazon is crucial to understanding the human ecology in the region.

Mediterranean mountain ecosystems are often complex and remarkably diverse and are seen as important sources of biological diversity. They play a key role in the water and sediment cycle for lowland regions as well as preventing and mitigating natural hazards especially those related to drought such as fire risk. However, these ecosystems are fragi...

This paper presents an innovative experience applying PBL methodology simultaneously to eight different subjects in a Master's Degree on Technology for Human Development of the Technical University of Madrid run by the Innovation and Technology for Development Centre (itdUPM). Students are encouraged to work on a real project considering multidisci...

Neste artigo é apresentado um modelo ecofisiológico-matemático (BrCane) para predizer a produtividade potencial - sem restrições nutricionais ou de água -, a fim de analisar a sustentabilidade da expansão do cultivo de cana-de-açúcar em novas áreas para produção de etanol. A arquitetura do modelo BRCANE foi concebida para uma planta tipo C4, onde a...

RESUMEN La sequía en España es un fenómeno frecuente y de elevada intensidad, para ello se ha diseñado el seguro de sequía de pastos, que se basa en la evaluación de un índice de vegetación sin la estimación de la producción de biomasa del pasto. El objetivo de este tra-bajo es obtener funciones de producción de biomasa de los pastos mediante índic...

Reintroductions of flagship species, including charismatic wild ungulates, are becoming increasingly frequent to protect endangered species or stimulate conservation awareness. However, indicators that go beyond the target species are still needed to ensure the ecological sustainability of past and future reintroductions. Here, we examined woody ve...

Ensuring that the food supply both keeps up with current population growth and changing food preferences are the main challenges of agriculture. Food security includes access to a sufficient amount of quality food products. Population growth, food preferences and economic wealth are variables that drive agricultural production, although agriculture...

The Iberian pig valued natural resources of the pasture when fattened in mountain. The variability of acorn production is not contained in any line of Spanish agricultural insurance. However, the production of arable pasture is covered by line insurance number 133 for loss of pasture compensation. This scenario is only contemplated for breeding cow...

Droughts are long-term phenomena affecting large regions causing significant damages both in human lives and economic losses. The use of remote sensing has proved to be very important in monitoring the growth of agricultural crops and trying to asses weather impact on crop loss. Several indices has been developed based in remote sensing data being...

The Iberian pig valued natural resources of the pasture when fattened in mountain. The variability of acorn production is not contained in any line of Spanish agricultural insurance. However, the production of arable pasture is covered by line insurance number 133 for loss of pasture compensation. This scenario is only contemplated for breeding cow...

The objective of this study was to verify the effectiveness of new patterns of sowing and to achieve a low-input organic system in two different environments (northern and southern Europe). The study was motivated by the hypothesis that more even sowing patterns (triangular and square) would significantly enhance the growth and yield of forage maiz...

The rotation maize and dry bean provides the main food supply of smallholder farmers in Honduras. Crop model assessment of climate change impacts (2070–2099 compared to a 1961–1990 baseline) on a maize–dry bean rotation for several sites across a range of climatic zones and elevations in Honduras. Low productivity systems, together with an uncertai...

Satellite image data have become an important source of information for monitoring vegetation and mapping land cover at several scales. Beside this, the distribution and phenology of vegetation is largely associated with climate, terrain characteristics and human activity. Various vegetation indices have been developed for qualitative and quantitat...

Title: Sustainability assessment of subsistence agriculture in San José de Cusmapa, Nicaragua Sustainability evaluation of peasant agricultural systems is becoming a global challenge due to the fact that family farms produce over 70% of food supply. In rural areas of Nicaragua family farm involve about 49% population and the subsistence agricultur...