Management planning for winter wheat with multiple objectives (1): The BETHA system

Loyce, Chantal; Rellier, Jean-Pierre; Meynard, Jean-Marc

doi:10.1016/s0308-521x(01)00064-6

Cited by 40 publications

(21 citation statements)

References 30 publications

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“…More realistically integrating the decision-maker's own views, since they are not necessarily expressed with formal, quantitative models (Dent et al 1995;Munda 2005); 3. Handling incomparability, incommensurability, and noncompensation between sustainability dimensions more effectively than other, more "classic" MCDA approaches frequently used to assess sustainability, such as ELEC TRE (Loyce et al 2002;Mazzetto and Bonera 2003), AHP (Shrestha et al 2004) or multi-objective optimization models (Dogliotti et al 2004;Meyer-Aurich 2005).…”

Section: Model Dissemination and Usesmentioning

confidence: 99%

Guidelines to design models assessing agricultural sustainability, based upon feedbacks from the DEXi decision support system

Craheix¹,

Bergez²,

Angevin³

et al. 2015

Agron. Sustain. Dev.

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New agricultural systems are required to satisfy societal expectations such as higher quantity and quality of agricultural products, reducing environmental impacts, and more jobs. However, identifying and implementing more suitable agricultural systems is difficult due to conflicting objectives and to the wide diversity of scientific disciplines required to solve agricultural issues. Therefore, designing models to assess the sustainability of agricultural systems requires multicriteria decision aid methods. The French agronomist community has recently developed 11 hierarchical and qualitative models to assess sustainability using the DEXi decision aid software. Here, we give guidelines to help designers to build their own specific models. First, we present the principles and applications of the DEXi software. Then, we provide guidance on the following steps of model designing: (1) initial analysis and planning of the design process, (2) selection and hierarchy of sustainability criteria, (3) indicator selection and building, (4) parameterization, (5) evaluation, and (6) model dissemination and uses. We then discuss advantages and drawbacks of this kind of modeling formalism, the role of a participatory approach, and the main properties to consider during the design process.

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Section: Model Dissemination and Usesmentioning

confidence: 99%

Guidelines to design models assessing agricultural sustainability, based upon feedbacks from the DEXi decision support system

Craheix¹,

Bergez²,

Angevin³

et al. 2015

Agron. Sustain. Dev.

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“…Agronomists can call upon methods developed for evaluation and design: multicriteria evaluation (Rossing et al, 1997;Loyce et al, 2002), agronomic diagnosis (Doré et al, 2008), designing based on models or expert evaluations. All these concepts and tools should be applicable to multispecies systems as they account for interactions between techniques, long-term cumulative effects and multi-criteria objectives for a crop.…”

Section: The Framework Provided By Agronomistsmentioning

confidence: 99%

Mixing Plant Species in Cropping Systems: Concepts, Tools and Models: A Review

Malézieux

Crozat²,

Dupraz³

et al. 2009

Sustainable Agriculture

155

142

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-The evolution of natural ecosystems is controled by a high level of biodiversity, In sharp contrast, intensive agricultural systems involve monocultures associated with high input of chemical fertilisers and pesticides. Intensive agricultural systems have clearly negative impacts on soil and water quality and on biodiversity conservation. Alternatively, cropping systems based on carefully designed species mixtures reveal many potential advantages under various conditions, both in temperate and tropical agriculture. This article reviews those potential advantages by addressing the reasons for mixing plant species; the concepts and tools required for understanding and designing cropping systems with mixed species; and the ways of simulating multispecies cropping systems with models. Multispecies systems are diverse and may include annual and perennial crops on a gradient of complexity from 2 to n species. A literature survey shows potential advantages such as (1) higher overall productivity, (2) better control of pests and diseases, (3) enhanced ecological services and (4) greater economic profitability. Agronomic and ecological conceptual frameworks are examined for a clearer understanding of cropping systems, including the concepts of competition and facilitation, above-and belowground interactions and the types of biological interactions between species that enable better pest management in the system. After a review of existing models, future directions in modelling plant mixtures are proposed. We conclude on the need to enhance agricultural research on these multispecies systems, combining both agronomic and ecological concepts and tools. species mixture / plant mixture / cropping system / agroforestry system / agrobiodiversity / resource sharing / crop model / competition / facilitation

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“…ou complexes (mod ele de cultures ; David et al, 2005 ;Barbottin et al, 2006) ou des mod eles sp ecifiquement construits pour classer et identifier les syst emes de culture les mieux adapt es (Loyce et al, 2002).…”

Section: Resultsunclassified

Comment favoriser la régulation biologique des insectes de l’échelle de la parcelle à celle du paysage agricole, pour aboutir à des stratégies de protection intégrée sur le colza d’hiver ?

Valantin‐Morison¹

2012

OCL

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Comment favoriser la r egulation biologique des insectes de l' echelle de la parcelle a celle du paysage agricole, pour aboutir a des strat egies de protection int egr ee sur le colza d'hiver ?Durant ces soixante dernieres annees, les modes de production agricole des pays du Nord ont permis d'assurer l'augmentation de la productivite agricole, grâce a une intensification importante des modes de conduite via le recours a une forte mecanisation et a une utilisation massive d'intrants. Ces nouvelles pratiques agricoles ont bel et bien conduit a une augmentation de la productivite mais ont egalement entraîne des impacts environnementaux et sanitaires considerables. D'abord, l'utilisation massive de fertilisants et de pesticides est reconnue comme ayant des effets nefastes sur les ecosystemes, et sur la gestion durable des bio-agresseurs, via l'apparition de resistance (Aubertot Abstract: How to enhance biocontrol of insects from the field scale up to agricultural landscape in order to propose integrated management strategies on winter oilseed rape? Continuous increases in the use of synthetic fertilisers and pesticides in agro-ecosystems have led to an increase in crop production, but also to a simplification of landscape and a decline in biodiversity at the field, cropping system level. Changes at landscape level, such as regional farm specialisation, increases in field size and the removal of hedgerows and woodlots suppression, have strengthened this tendency towards decline. The loss of biodiversity in agro-ecosystems has increased the need for external inputs, as important functions are no longer provided by beneficial species. This has led to an apparently inevitable reliance on petrochemicals in production systems. However, many scientists are arguing that this reliance on pesticides could be considerably reduced by making better use of biotic interactions. This review explores, in the light of recent studies, possible ways to increase beneficial biotic interactions in agro-ecosystems, and to improve bio control pest management at field and landscape scales. This review also points out the possible integrated cropping system on oilseed rape and concludes on the future research that has to be engaged to achieve the goal of improvement the natural bio-control of pests. For example at field scale, it has been shown that the choice of cultivar, the sowing date and nitrogen fertilisation practices can be manipulated to prevent interactions between pests and crop, in either time or space . We have also highlighted that beneficial biotic interactions may result from appropriate changes to the habitats of beneficial species, mediated by soil management and cover or mixing species utilisation. Finally, changes achieved at landscape scale appear promising. However, these approaches frequently also present drawbacks that may not necessarily be outweighed by the beneficial effects. Endly, we propose the approaches to design integrated crop management systems to reduce the damage of pests. However, major research efforts a...

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Management planning for winter wheat with multiple objectives (1): The BETHA system

Cited by 40 publications

References 30 publications

Guidelines to design models assessing agricultural sustainability, based upon feedbacks from the DEXi decision support system

Guidelines to design models assessing agricultural sustainability, based upon feedbacks from the DEXi decision support system

Mixing Plant Species in Cropping Systems: Concepts, Tools and Models: A Review

Comment favoriser la régulation biologique des insectes de l’échelle de la parcelle à celle du paysage agricole, pour aboutir à des stratégies de protection intégrée sur le colza d’hiver ?

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