Search results for " Diversification"
showing 10 items of 42 documents
The transformation of agricultural systems into agro-forestry systems as a system of adaptation to climate and economic changes: some Sicilian case s…
2021
Many traditional agricultural systems show different limits both in ecological and economic terms. These limits are exacerbated by the increasingly extreme climatic conditions which in the southern regions are manifested essentially in a concentration of rainfall and in increasingly intense dry periods. As part of the LIFE (Desert Adapt) project, some companies involved in the project are modifying their cultivation systems without changing the land use destination. This appears possible by introducing elements of diversification which make the system more resilient as a whole but which guarantees safer economic resources. In particular, in the case of a "classic" agricultural company Calta…
The transformation of agricultural systems into agro-forestry systems as a mechanism of adaptation to climate and economic changes: some Sicilian cas…
2021
Many traditional agricultural systems show different limits both in ecological and economic terms. These limits are exacerbated by the increasingly extreme climatic conditions which in the southern regions are manifested essentially in a concentration of rainfall and in increasingly intense dry periods. As part of the LIFE (Desert Adapt) project, some companies involved in the project are modifying their cultivation systems without changing the land use destination. This appears possible by introducing elements of diversification which make the system more resilient as a whole but which guarantees safer economic resources. In particular, in the case of a "classic" agricultural company Calta…
Time-varying conditional correlation : effect on international portfolio diversification in Southeast Asia
2017
Tämä tutkimus tarkastelee USA:n ja valittujen Kaakkois-Aasian kehittyvien maiden markkinoita; Philippiinejä, Indonesiaa, Malesiaa ja Thaimaata. Tutkimus antaa tuloksia sekä USA:n että indonesialaisen sijoittajan näkökulmasta. Merkittävä rooli tutkimuksessa on ajassa muuttuvan korrelaation havainnollistamisessa osakeindeksien välillä käyttäen apuna Englen vuonna 2002 esittelemää DCC-GARCH mallia. Tutkimuksessa käytetty data on vuodesta 1988 vuoteen 2015 saakka. Tulokset paljastavat kuinka valittujen osakemarkkinoiden välinen korrelaatio on muuttunut kolmen kriisin - Aasian kriisin, teknologiakuplan ja globaali talouskriisin - myötä ja onko muutos ollut pysyvää vai ei. Lisäksi tutkimuksessa t…
Efficacia delle Fasce Tampone e della Gestione del Suolo per il Controllo dei Nitrati in Vigneto
2010
Buffer strip use in vineyard could represent an environmental strategy for nitrate control of surface and deep water due to agricolture managment. Buffer strip determines a reduction of soil erosion and consequently can reduce nutritive and pollulant elements losses. With the aim to evaluate buffer strips and soil managment effectiveness on nitrate control in vineyard, a trial was carried out in a South-West part of Sicily characterized by an high nitrate losses sensitivity, an annual rainfall of about 516mm and an average temperature of 18°C. In a vineyard on about 7% slope and 90m lenght a 10 meter buffer strip was seeded using a Lolium perenne permanent meadow. Vineyard was managed both …
How to model crop-weed competition for soil resources: Connecting the STICS soil submodel to the FLORSYS weed dynamics model
2020
International audience
Mise en évidence du rôle de la diversité dans la dynamique des communautés d'adventices et des interactions adventices/cultures
2020
The main challenge of 21st century agriculture is to provide sufficient food for a growing to identify cropping systems which maintain crop productivity, minimize reliance on synthetic herbicides and nitrogen fertilizers, and promote weed diversity. We hypothesized that cropping system diversification, either at the annual scale through the introduction of cover crops, or at the plurennial scale through a diversification of the crop sequence and associated weed management tools, could be a viable means to reach these objectives. More specifically, we hypothesized that cropping system diversification could (i) contain weed abundance and thereby, allow a reduction of herbicide use and an incr…
Comparaison de l'arisa et du séquençage haut débit pour l'étude des processus de diversification des communautés microbiennes du sol
2013
EA SPE EcolDur GenoSol; National audience
Co-design and test of biodiversity-based pesticide-free Conservation Agriculture in the long-term CA-SYS platform in France
2022
The French National Institute for Agricultural Research (INRA) has established an ambitious experimental infrastructure (the CA-SYS platform) in autumn 2018 after 5 years of co-design with farmers, crop advisors and researchers. CA-SYS covers an area of 125ha divided into 42 fields. The originality of CA-SYS is that it is explicitly conceivedfor the design and evaluation of biodiversity-based and pesticide-free agroecological systems across agriculturallyrealistic scales. An agroecological system will comprise a matrix of fields of one (or a few) cropping systems over anumber of years interacting with adjacent semi-natural habitats (hedges, grass margin strips, flower strips). Thisspatio-te…
Potential of crop mixtures to reduce pesticide use in France. A data analysis
2022
Over the last 50 years, agricultural intensification has led to simplified agricultural systemshighly dependent on fertilisers and pesticides, causing biodiversity loss, changes in the balanceof nutrients, water and soil contamination. The total amount of pesticides applied each yearin France makes it the main consumer of plant protection products in Europe, and arable cropsare currently the most pesticide-consuming production systems. Reducing pesticide use inarable crops is thus a major challenge. There is now evidence that crop diversification in time,with more diversified rotations, and in space, through crop mixtures, can help restoreecosystem services and represent a potential key lev…
Reconciling pesticide reduction with economic and environmental sustainability in arable
2014
National audience