Search results for "nuisance"

showing 7 items of 17 documents

Peut-on réduire les herbicides sans perdre de rendement ?

2019

Afin de concevoir des systèmes agricoles durables et économes en herbicides, il est indispensable de comprendre les relations entre usage d'herbicides, niveau d’infestation par les adventices et pertes de rendement. Comme les agriculteurs raisonnent l'utilisation des herbicides en fonction de la flore et de leurs autres pratiques (ex. travail du sol, date de semis, rotation), il est difficile d'évaluer ces relations directement en parcelles agricoles, tant les possibilités sont nombreuses. Notre étude a donc choisi de traiter la question via l’utilisation d’un modèle de simulation. Nous avons collecté et simulé 272 systèmes de culture d'agriculteurs de sept régions avec la flore adventice t…

[SDE] Environmental Sciencesnuisibilité[SDV]Life Sciences [q-bio]yield lossHTFIsimulation[SDV] Life Sciences [q-bio]IFT herbicidenuisanceherbicide[SDE]Environmental Sciencesperte de rendement;IFT herbicide;adventice;simulation;nuisibilité; yield loss;HTFI;herbicide;weed;simulation;nuisance[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biologyadventiceweed
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"Save the Night" : light footprint, urbanism and territorial governance

2010

Our society maintains a complex relation with night, space-time often outside the diurnal cadences which facilitates the reflection, the imagination, the creation, the listening and the link with the other one, while revealing the segregation, the fear, and thus the restriction. By this research, we put compared to the urban lighting – real light project carrier of a strong symbolism – the socio-cultural, ecological and sanitary costs engendered by the artificial light. The urban lighting generates a geographical interlacing of bright imprints of differentiated scales, which we approach by various modellings, without forbidding us the sensitive analysis. We clarify, at various scales, the g…

[SHS.ARCHI]Humanities and Social Sciences/Architecture space management[ SHS.HIST ] Humanities and Social Sciences/HistoryGouvernance des territoiresEclairage publicNuit[ SHS.ARCHI ] Humanities and Social Sciences/Architecture space management[SHS.HIST] Humanities and Social Sciences/HistoryEmpreinte lumineuseLumière urbaineNo english keywords[SHS.ARCHI] Humanities and Social Sciences/Architecture space management[SHS.HIST]Humanities and Social Sciences/HistoryPollutions lumineusesNuisances lumineuses
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Quand les eaux de rouissage débordaient dans la cité : essai sur le mode d'existence d'une nuisance (France, XVIIIe-XIXe siècle)

2013

[SHS.DROIT]Humanities and Social Sciences/Lawnuisance[SHS.DROIT] Humanities and Social Sciences/Lawcitéeaux de rouissage[ SHS.DROIT ] Humanities and Social Sciences/Law
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Dimensions cognitives et multiscalaires des conflits environnementaux

2011

Résumé disponible en ligne sur le site de l'UMR SAD-APT (INRA AgroParisTech) : http://www6.versailles-grignon.inra.fr/sadapt/Equipe-Proximites/Seminaire-Conflits-et-territoires/dernieres-interventions/a_larceneux; National audience; La dynamique conflictuelle s'exprime particulièrement sur le terrain de l'aménagement et de l'environnement. Mais pour qu'il y ait conflit ou opposition entre des individus ou des groupes, il faut que des " opinions " soient constituées : or celles-ci se forment de manière complexe, dans des processus dont les explications théoriques sont multiples et opposent nettement les lectures économiste, monétarisant les dommages, et écologique, qui raisonne en termes de …

dommagesnuisancescognitionterritoire[SHS.GEO] Humanities and Social Sciences/Geographypollutionsconflits[SHS.GEO]Humanities and Social Sciences/Geographyrisquesacteursperception[ SHS.GEO ] Humanities and Social Sciences/Geography
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Application of Electronic Nose for Evaluation of Wastewater Treatment Process Effects at Full-Scale WWTP

2019

This paper presents the results of studies aiming at the assessment and classification of wastewater using an electronic nose. During the experiment, an attempt was made to classify the medium based on an analysis of signals from a gas sensor array, the intensity of which depended on the levels of volatile compounds in the headspace gas mixture above the wastewater table. The research involved samples collected from the mechanical and biological treatment devices of a full-scale wastewater treatment plant (WWTP), as well as wastewater analysis. The measurements were carried out with a metal-oxide-semiconductor (MOS) gas sensor array, when coupled with a computing unit (e.g., a computer with…

electronic noseBioengineering010501 environmental scienceslcsh:Chemical technology01 natural scienceslcsh:ChemistrySensor arraywastewater treatment processesChemical Engineering (miscellaneous)lcsh:TP1-1185multidimensional data analysisProcess engineering0105 earth and related environmental sciencesMultidimensional analysisElectronic nosebusiness.industryProcess Chemistry and TechnologyDimensionality reduction010401 analytical chemistrySupervised learningodor nuisances0104 chemical sciencesgas sensor arraylcsh:QD1-999WastewaterPrincipal component analysiswastewater qualityEnvironmental scienceSewage treatmentbusinessProcesses
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Increasing concentration of polyunsaturated fatty acids in browning boreal lakes is driven by nuisance algaGonyostomum

2020

Elevated concentrations of dissolved organic carbon (DOC) promote browning of lakes, which alters the physicochemical properties of water and ecosystem functioning. However, browning‐induced changes in basal production of polyunsaturated fatty acids from the n‐3 and n‐6 families (n‐3 and n‐6 PUFA) in lakes are not fully understood. The concentrations of PUFA, which are micronutrients required to maintain growth and reproduction of consumers, have been suggested to either rise or decline in seston as a response to lake browning. Elevated DOC concentrations may also promote bacterial biomass and production and thus potentially increase the concentration of bacterial fatty acids (BAFA) in sest…

liuennut orgaaninen hiili0106 biological sciencesGonyostomumrasvahapotdissolved organic carbon (DOC)010501 environmental sciences01 natural scienceslcsh:QH540-549.5PhytoplanktonBotanyBrowningdocosahexaenoic acid (DHA)ravinnekiertoeicosapentaenoic acid (EPA)Ecology Evolution Behavior and Systematics0105 earth and related environmental sciencesBoreal lakes2. Zero hungerchemistry.chemical_classificationEcologybiology010604 marine biology & hydrobiologyplanktonfood and beveragesmikrolevät15. Life on landbiology.organism_classificationmikrobistochemistryphytoplanktonEnvironmental sciencelipids (amino acids peptides and proteins)lcsh:EcologyNuisancePolyunsaturated fatty acidEcosphere
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Perception des adventices par les agriculteurs, conseillers, techniciens d’expérimentation et chercheurs en France

2019

Une enquête nationale ayant recueilli 1320 réponses (839 analysées dans cet article), dont 56% d'agriculteurs, 26% de conseillers, 14% de techniciens/expérimentateurs et 4% de chercheurs, a permis de sonder leur perception des adventices. Les effets positifs des adventices ont moins d’importance aux yeux des sondés que leurs effets négatifs. Pour les effets négatifs, la perte de rendement (nuisibilité primaire directe) et l’augmentation du stock semencier (nuisibilité secondaire) sont les plus importants. Entre 60% et 80% des personnes enquêtées jugent importants les effets négatifs sur la conduite des travaux agricoles et la perte de qualité la récolte. Les effets positifs « sources de pol…

nuisibilité[SDE] Environmental Sciencesnuisibilité secondaire[SDV]Life Sciences [q-bio]perceptionservice écosystémiqueecosystem service[SDV] Life Sciences [q-bio]secondary nuisancenuisanceprimary nuisance[SDE]Environmental Sciences[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biologynuisibilité primaire
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