14 research outputs found
Quinta da França
Quinta da França (QF) is a farm located in Cova da Beira, Covilhã, which is managed by
Terraprima. The farmâs main activities are agriculture and livestock production. Among the
fodder crops, the most important are temporary and permanent pastures and annual crops (such
as maize, both irrigated and rainfed). Livestock consists of sheep, cows and goats (the latter in
smaller numbers). The management of QF privileges sown seeks to optimize the environmental
services of agricultural activities through the use of biodiverse pastures and no-tillage, and to
obtain payment for those services. Regarding forest occupation, the oak-Negral is dominant, but
there is a non-neglectable area of pine, and some small plots of eucalyptus marble and/or acacia.
The main promoters of change in QF are: investment and participation in R&D projects;
payment for environmental services; land use changes, biotic and abiotic threats and public
support. Some R&D projects were particularly important in the management of QF. theProject
Agro 87) plaid a pivotal role in the implantation of a significant area of biodiverse pastures in
QF. Project Landstate was the source of the trademarked Terraprima products. Project Extensity
contributed to the improvement and monitoring of the environmental performance of QF. QF,
through Terraprima, was also a pioneer in the payment for environmental services. Terraprima
signed with EDP (the Portuguese electrical company) the first contract in Portugal for carbon
sequestration resulting from agro-forestry activities. Main promoters of land use change in QF
are the construction of the irrigation perimeter of Cova da Beira, and the consequent
intensification of agricultural and livestock activities. The main abiotic and biotic threats
identified are the occurrence of fires and the incidence of the brucellosis disease. In terms of
public support, agri-environmental payments are particularly important.
The main themes for conditions and trends identified in the QF are biodiversity, food production,
carbon sequestration / soil protection / regulation of water cycle and the supply of scientific
information. In terms of biodiversity, and with respect to vertebrates, species with confirmed
occurrence in QF are 72% of all species in the region. Main food products in QF are beef, lamb
and calf meat, sheep milk, and grain silage maize. Carbon sequestration, soil protection and
water cycle regulation are all achieved together by planting new forests, introducing sustainabl
Life cycle cost assessment of insect based feed production in West Africa
While there is a growing body of research investigating the technical feasibility and nutritional properties of insect based feeds (IBFs), thus far little attention has been devoted to gauge the economic implications of implementation. This study has investigated the economic performance of ex-ante modelled IBF production systems operating in the geographical context of West Africa. A Life Cycle Cost (LCC) analysis of recently published life cycle inventory (LCI) data served as a basis to analyse and compare the economic performances of IBF production systems using Musca domestica and Hermetia illucens reared on different substrates. To gauge the application potential of IBF in West Africa, estimated breakeven sale prices of IBFs were benchmarked against the customary market prices of conventional feeds. The results show that the economic performance of IBF production in West Africa is largely determined by the costs attributed to labour and the procurement of rearing substrates, attesting economic advantages to the production of M. domestica larvae by measure of breakeven price (1.28â1.74 EUR/kg IBF) and LCC (1.72â1.99 EUR/kg IBF). A comparison of the breakeven sale prices of IBF with market prices of conventional feeds suggest that IBF has potential to substitute imported fishmeal, but findings offer no support for conjectured economic advantages over plant based feeds
EFO-LCI: A New Life Cycle Inventory Database of Forestry Operations in Europe
Life cycle assessment (LCA) has become a common methodology to analyze environmental impacts of forestry systems. Although LCA has been widely applied to forestry since the 90s, the LCAs are still often based on generic Life Cycle Inventory (LCI). With the purpose of improving LCA practices in the forestry sector, we developed a European Life Cycle Inventory of Forestry Operations (EFO-LCI) and analyzed the available information to check if within the European forestry sector national differences really exist. We classified the European forests on the basis of "Forest Units" (combinations of tree species and silvicultural practices). For each Forest Unit, we constructed the LCI of their forest management practices on the basis of a questionnaire filled out by national silvicultural experts. We analyzed the data reported to evaluate how they vary over Europe and how they affect LCA results and made freely available the inventory data collected for future use. The study shows important variability in rotation length, type of regeneration, amount and assortments of wood products harvested, and machinery used due to the differences in management practices. The existing variability on these activities sensibly affect LCA results of forestry practices and raw wood production. Although it is practically unfeasible to collect site-specific data for all the LCAs involving forest-based products, the use of less generic LCI data of forestry practice is desirable to improve the reliability of the studies. With the release of EFO-LCI we made a step toward the construction of regionalized LCI for the European forestry sector
Fungos basidiomicetas agentes causais de podridÔes do lenho em årvores na cidade de Lisboa
Mestrado em Engenharia Florestal e dos Recursos Naturais - Instituto Superior de Agronomia - ULN/
Life cycle sustainability assessment and its application potential in the development of sustainable feed production systems â an ex-ante assessment of insect-based feed production
info:eu-repo/semantics/nonPublishe
First records of the lawn bug Blissus insularis Barber (Hemiptera: Blissidae) in Europe
Short CommunicationSince October 2019, chinch bugs have been
detected in large sunken dead patches of St.
Augustinegrass (Stenotaphrum secundatum) lawns in
different locations of Lisbon and Setubal districts, in
Portugal. Based on morphological and molecular studies,
using mitochondrial Cytochrome C Oxidase subunit
I (COI) gene, the collected insects were identified as
Blissus insularis (Hemiptera, Heteroptera, Blissidae).
This is the first record of this noxious chinch bug species
in Europe and in the Palaearctic regionThe project was funded by LaboratĂłrio de Patologia
Vegetal âVerĂssimo de Almeidaâ, School of Agriculture, University
of Lisboninfo:eu-repo/semantics/publishedVersio
Life Cycle Inventory Analysis of Prospective Insect Based Feed Production in West Africa
While the concept of insect based feeds (IBFs) promises great potential, especially in developing countries, the sustainability performance of IBF production remains widely underexplored. Drawing on experimental data from rearing trials in West Africa, three different insect production systems were modelled ex-ante. The generic models served as a basis to analyse and compare the process performances of different IBF production systems using Musca domestica and Hermetia illucens reared on different substrates. The results show that the input efficiency in the production of IBF is largely determined by the quality of rearing substrates, the larval development time and the employed inoculation practises, i.e., the method by which eggs or larvae are added to rearing substrates. The H. illucens system ranked highest for conversion efficiency (substrate input per IBF output), but showed substantially higher inputs in labour, fossil energy and output of wastewater. M. domestica systems operated at lower conversion efficiencies, which resulted in higher outputs of residue substrates, together with higher emissions, land requirements, built infrastructure and water. By offering full disclosure of generic inventory data, this study provides data and inspiration for prospect research and development activities and offers a reference to future life cycle assessments (LCAs) on IBF
Ex-ante life cycle impact assessment of insect based feed production in West Africa
info:eu-repo/semantics/publishe