Pas d'enregistrements
Sirine Bouguerra
2022
2Improve: Boost the potential of resistant indigenous plant growth-promoting rhizobacteria to improve crop productivity and soil quality in Estarreja and Baixo Vouga Lagunar affected agroecosystems.
The threatens to agriculture soils from the Estarreja and Baixo Vouga Lagunar (BVL) regions include the combination of several anthropogenic and environmental factors, such as industrial pollution, intensive farming practices, overuse of fertilizers, the use of contaminated groundwater for irrigation, and salinization due to surface saltwater intrusion. For instance, these factors contributed to land degradation and therefore to crop productivity and safety decreasing. Maize (Zea mays L.) is one of the most important crops in these regions and boosting maize production in affected soils can have a significant socio-economic impact. Thus, the need of sustainable and eco-friendly solutions to improve productivity is one of the major challenges of agriculture activity in these regions. Estarreja and BVL may also be living labs, providing experience to other sites, where these approaches may be transferred. Several studies have demonstrated that inoculation with indigenous rhizobacteria can enhance plant performance and growth. Driven by described issues and based on knowledges acquired from our previous OHM projects (e.g: SoilGenomic, 2016; NotillAgri-Estarreja, 2017; Nameless, 2017; SoilSalt, 2017; SoilRice, 2018), this proposal aims to explore the potential of a consortium of indigenous plant growth-promoting rhizobacteria (PGPB) that are resistant to metal(loids) present in those soils, as well as PGPB well adapted to high levels of salinity and re-applied them to reduce problems associated with stressful environments via ex-situ bioinoculation of new seeds (before sowing) and in-situ bioinoculation of new plantlets. Accordingly, this may contribute to minimizing impacts on crops productivity and assure more sustainable agriculture practices.
Nuno Durães
2022
TracEnviSoil - Tracing metal(loid) and rare earth elements contents in alluvial soils of Baixo Vouga Lagunar: Origin, availability and environmental issues
The Baixo Vouga Laugar (BVL) is a very particular example of the harmonious coexistence between man and nature. This region, characterised by highly productive soils, enticed humankind to take advantage of its land and surface water reservoirs for the development of various agricultural practices (e.g., rice paddies, cornfields, pasture, among others). The high fertility of BVL's soils is owed to their development under the influence of alluvial deposits, materials with loamy texture, high porosity and marked organic matter enrichment. However, as demonstrated by the results obtained in other OHM projects, some of these soils are enriched in several potential toxic elements (PTEs). For this reason, the TracEnviSoil project intends to obtain a screening of the distribution of metal(loid)s of greater concern, as well as of rare earth elements (REEs), in order to ascertain the most probable sources (geogenic versus anthropogenic) of these trace elements, but also their (bio)availability and eco-toxicity in agriculture soils. This would allow to infer the potential risks for soil productivity, by creating harmful conditions for the soil microbiome and plant growth. Finally, the bioaccumulation of PTEs in the edible parts of plants will be evaluated in order to estimate the risk of their entry into the food chain, namely of animals and humans that feed on the vegetable products grown on these soils.
Andrés Andrés Rodríguez Seijo
2018
MATiSSe - Microplastics on AgriculTural SoilS: assessment of their impact on physical, chemical and biological soil properties
This project proposes to study the impact of Microplastics in agricultural soils, though the assessment of several soil properties: physical (soil texture, soil structure and bulk density), chemical (pH, cation exchange capacity, organic matter, potentially toxic elements and compounds) and biological properties (soil enzymatic activity and/or soil organisms). Although this project could be developed in any region, Estarreja region offers an exceptional environment due to having a mixed area of agricultural and industrial activities, where MPs can act as carriers of potentially toxic elements and compounds, as reported for aquatic ecosystems. Further, insights brought by this project can be useful to support the development of soil management measures specifically targeting the restoration of the quality of soils from Estarreja.
Jean-Philippe Bedell
2017
Bioavailability and ecotoxicology assessment of organic contaminants presents in Estarreja soils
Soil, an important environmental compartment, is largely affected daily by anthropogenic activities such as industries, traffic and waste disposal. These activities can bring to the soils large quantities of several contaminants and consequently they can easily enter the food chain and the trophic scale of ecosystems via plants and animals.
Ruth Pereira
2017
NAMELESs - Nanomaterials for the Remediation of agriculture Metal contaminated soils surrounding the Estarreja chemical complex
Estarreja Chemical Complex (ECC) is the second largest chemical complex in Portugal and has been classified by the Portuguese Environmental Agency as a "site of priority actions in terms of rehabilitation". Previous studies found that potentially toxic elements (PTEs) in Estarreja agricultural soils are associated with labile fractions, which results in their bioaccumulation and translocation in plant tissues of commercial interest, and a potential risk of transfer to the food web.
Olga Ameixa
2016
PHYTOREMEDIATION OF SALINE SOILS USING SALICORNIA RAMOSSISIMA (Acronym: RESTORE)
Baixo Vouga Lagunar (BVL) is an area with a strong and balanced relationship between man, land and water, recognized by its high biological diversity. However, the impact of human activity (e.g. changes in the system hydrology) combined with climate change (e.g. sea level rise), have already affected BVL, wherein areas are currently flooded by tides, and soils affected by surface saline intrusion. The conclusion of the dike, foreseen in a short term, is fundamental to save still existing agricultural areas and to reclaim flooded areas. However, it is necessary to remediate these soils from salt contamination in order to return them back to agriculture. In this context, we propose to conduct an innovative and multidisciplinary project, linking the team scientific knowledge on agriculture and soils, environmental chemistry and salt marsh ecology, in combination with local farmer’s knowledge. This proposal will integrate two of the topics proposed by OHM-Estarreja: Evolution of the Relations Between Society and Environment and Evolution of Biodiversity. We propose, to evaluate the potential of the autochthonous halophyte Salicornia ramosissima to remediate the BVL salt contaminated soils. Apart from having a phytoremediation capacity, S. ramosissima is currently considered a gourmet plant with high market demand as a green fashionable vegetable, dished up in fine restaurants all over the world. Hence, it can be grown as a cash crop and be an alternative in salinized soils for farmers in the region. RESTORE project can also serve as showcase for other coastal areas under treat due to salt contamination.
Eduardo Ferreira Da Silva
2015
Environmental quality assessment and monitoring with wireless sensors network in different sampling media
