16 documents found, page 1 of 2
Insights into 15 years of transdisciplinary research on a small Greek island
Noll, Dominik; Petridis, Panos; Gingrich, Simone; Skoulikidis, Nikos; Jit Singh, Simron; Jongen, Marjan; George, Papaioannou; Fischer-Kowalski, MarinaThis article introduces a long-term transdisciplinary research process on the Greek island of Samothraki, aiming at sustainability solutions that are not only scientifically sound, but also co-designed, well received and adopted by the local community. We reflect on 15 years of socioecological research by utilizing the conceptual lens of real-world laboratories (RwLs). We present the research approach pursued o...
Changing pasture management practices on the Greek island of Samothraki: Obstac...
Jongen, Marjan; Noll, Dominik; Maskalidis, Giorgos; Domingos, Tiago; Fischer-Kowalski, MarinaContext On the Greek island of Samothraki, decades of overgrazing by the large domestic population of small ruminants accelerated soil degradation and surface erosion, with direct consequences for ecosystem functioning and the delivery of ecosystem services. Objective This manuscript reports on a 5-year research project to achieve more sustainable pasture management practices among small ruminant farmers on the...
Satellite-based estimation of soil organic carbon in Portuguese grasslands
Morais, Tiago G.; Jongen, Marjan; Tufik, Camila; Rodrigues, Nuno R.; Gama, Ivo; Serrano, João; Gonçalves, Maria C.; Mano, Raquel; Domingos, TiagoSoil organic carbon (SOC) sequestration is one of the main ecosystem services provided by well-managed grasslands. In the Mediterranean region, sown biodiverse pastures (SBP) rich in legumes are a nature-based, innovative, and economically competitive livestock production system. As a co-benefit of increased yield, they also contribute to carbon sequestration through SOC accumulation. However, SOC monitoring in...
Characterization of portuguese sown rainfed grasslands using remote sensing and...
Morais, Tiago; Jongen, Marjan; Tufik, Camila; Rodrigues, Nuno; Gama, Ivo; Fangueiro, David; Serrano, João; Vieira, Susana; Domingos, TiagoGrasslands are crucial ecosystems that support and provide a diverse number of ecosystem services. Sown biodiverse pastures rich in legumes (SBP) were developed with the main goal of increasing grassland production while minimizing fertilizers inputs. In this paper, the main properties of SBP in Portugal were estimated using remote sensing and machine learning in six different farms and two production years (sp...
Characterization of portuguese sown rainfed grasslands using remote sensing and...
Morais, Tiago G.; Jongen, Marjan; Tufik, Camila; Rodrigues, Nuno R.; Gama, Ivo; Fangueiro, David; Serrano, João; Vieira, Susana; Domingos, TiagoGrasslands are crucial ecosystems that support and provide a diverse number of ecosystem services. Sown biodiverse pastures rich in legumes (SBP) were developed with the main goal of increasing grassland production while minimizing fertilizers inputs. In this paper, the main properties of SBP in Portugal were estimated using remote sensing and machine learning in six different farms and two production years (sp...
Evaluation of near infrared spectroscopy (NIRS) for estimating soil organic mat...
Serrano, João; Shahidian, Shakib; Silva, José Marques; Paixão, Luís; Carvalho, Mário; Moral, Francisco; Nogales-Bueno, Julio; Teixeira, Ricardo F.M.The Montado is an agro-silvo-pastoral ecosystem characteristic of the Mediterranean region. Pasture productivity and, consequently, the possibilities for intensifying livestock production depend on soil fertility. Soil organic matter (SOM) and phosphorus (P2O5) are two indicators of the evolution of soil fertility in this ecosystem. However, their conventional analytical determination by reference laboratory me...
Estimating soil organic carbon of sown biodiverse permanent pastures in Portuga...
Morais, Tiago G.; Tufik, Camila; Rato, Ana E.; Rodrigues, Nuno R.; Gama, Ivo; Jongen, Marjan; Serrano, João; Fangueiro, David; Domingos, TiagoGrasslands in Portugal are key managed ecosystems, supporting and providing a diverse number of ecosystem services. Here, we developed a procedure for rapid estimation of soil organic carbon (SOC) in soil samples of sown biodiverse permanent pastures rich in legumes (SBP) in Portugal. We combined laboratory NIR spectral data analysis with artificial neural networks (ANN) to estimate the SOC content of SBP soil ...
Climate control of terrestrial carbon exchange across biomes and continents
Yi, Chuixiang; Li, Runze; Wolbeck, John; Xu, Xiyan; Nilsson, Mats B.; Aires, Luis Miguel Igreja; Albertson, John D.; Ammann, ChristophUnderstanding the relationships between climate and carbon exchange by terrestrial ecosystems is critical to predict future levels of atmospheric carbon dioxide because of the potential accelerating effects of positive climate-carbon cycle feedbacks. However, directly observed relationships between climate and terrestrial CO2exchange with the atmosphere across biomes and continents are lacking. Here we present ...
Modeling soil water dynamics and pasture growth in the montado ecosystem using ...
Simionesei, Lucian; Ramos, Tiago B.; Oliveira, Ana R.; Jongen, Marjan; Darouich, Hanaa; Weber, Kirsten; Proença, Vânia; Domingos, Tiago; Neves, RamiroThe southern Iberian Peninsula is characterized by evergreen oak woodlands (locally known as montado), which constitute an important savanna-type agro-silvo-pastoral ecosystem. This ecosystem is facing a progressive decline for several reasons, with the foremost being overgrazing. Better management tools are necessary to accurately quantify the systems’ carrying capacity and the sustainable stocking rates that ...
Species-specific adaptations explain resilience of herbaceous understorey to in...
Jongen, Marjan; Hellmann, Christine; Unger, StephanTo date, the implications of the predicted greater intra-annual variability and extremes in precipitation on ecosystem functioning have received little attention. This study presents results on leaf-level physiological responses of five species covering the functional groups grasses, forbs, and legumes in the understorey of a Mediterranean oak woodland, with increasing precipitation variability, without alterin...