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  • 1-10 ل  148 نتائج ل ""consumers""

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Collection : Institut National Des Sciences De L'univers
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Conference

Recycling local organic waste in peri-urban horticulture: a casestudy in the Parisian region ; In France, there is a growing demand of locally produced vegetables from urban consumers. Meanwhile, cities and their peri-urban areas are a source of organic wastes (OW) that can be recycled as amendment or fertiliser in agriculture. Our research objective was to investigate the current and prospective uses of OW by market gardeners and fruit growers in three peri-urban areas near Paris (France). We carried out semi-structured interviews with thirty market gardeners and/or fruit growers to study their current fertilisation practices and their perception regarding the potential use of diverse OW available (or probably available in the future). It turned out that the most common OW were green waste compost and horse manure, used mainly as soil amendment. Besides, most farmers used commercial organic fertilisers. Farmers’ perception regarding the potential use of biowaste compost was good, as well as for shredded green waste. However, the farmers were more reluctant to use digestate from biowaste anaerobic digestion and human urine, although they would be suitable OW for the substitution of commercial fertilisers (thanks to a high N availability). This reluctance was mainly explained by sanitary risks, legal barriers, logistic problems or fear of consumer perception. We showed that for farmers, OW had to be considered not only for their fertilisation or amendment role but also for other farming objectives such as mulching. The rates of OW application greatly varied among farmers but were higher than what was usually applied in field crops in Paris region. Based on these figures, we extrapolated the required acreage to recycle all composted organic wastes from private households at the scale of the Ile-de-France (Paris) region. This showed that market gardening and fruit production could play a significant role in recycling OW from cities at the regional level.

Subjects: France; vegetables production; urban consumersAngers; France

  • Source: International Horticulture Congress ; https://hal.inrae.fr/hal-03765958 ; International Horticulture Congress, International Society for Horticultural Science: ISHS, Aug 2022, Angers, France ;

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Academic Journal

Copper and Gold Nanoparticles Increase Nutrient Excretion Rates of Primary Consumers

Subjects: [SDE]Environmental Sciences

  • Source: ISSN: 0013-936X.

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Academic Journal

Calcium stable isotopes place Devonian conodonts as first level consumers

Subjects: [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry; [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology

  • Source: ISSN: 2410-339X.

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Academic Journal

Flow intermittency affects the nutritional quality of phototrophic biofilms and their capacity to support secondary production

Subjects: dry period; freshwater periphyton; intermittent rivers

  • Source: ISSN: 0046-5070.

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Academic Journal

Diatom-specific highly branched isoprenoids as biomarkers in Antarctic consumers

Subjects: [SDE.BE]Environmental Sciences/Biodiversity and Ecology

  • Source: ISSN: 1932-6203.

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Academic Journal

The functional response predicts the effect of resource distribution on the optimal movement rate of consumers

Subjects: modelling; Marginal Value Theorem; enrichment

  • Source: ISSN: 1461-023X.

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Dissertation/ Thesis

Trophic relations between primary producers and four primary consumers benthic in a moderate coastal ecosystem ; Relations trophiques entre producteurs primaires et quatre consommateurs primaires benthiques dans un écosystème côtier tempéré

Subjects: Food web; Phytoplankton; Benthic filters

  • Source: https://theses.hal.science/tel-01193015 ; Ecologie, Environnement. Université de Bretagne occidentale - Brest, 2014. Français. ⟨NNT : 2014BRES0111⟩.

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Academic Journal

Diversity patterns of leaf-associated aquatic hyphomycetes along a broad latitudinal gradient

Subjects: Aquatic hyphomycetes; Fungal biodiversity; Fungal sporulation

  • Source: ISSN: 1754-5048 ; Fungal Ecology ; https://hal.science/hal-00958291 ; Fungal Ecology, 2013, vol. 6, pp. 439-448. ⟨10.1016/j.funeco.2013.04.002⟩.

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Academic Journal

Effects of large dams on the aquatic food web along a coastal stream with high sediment loads

Subjects: nutrient concentrations; sediment fluxes; photosynthetic biofilm

  • Source: ISSN: 2296-701X ; Frontiers in Ecology and Evolution ; https://hal.science/hal-04383209 ; Frontiers in Ecology and Evolution, 2024, Frontiers in Ecology and Evolution, 11, pp.1250892.

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Effects of large dams on the aquatic food web along a coastal stream with high sediment loads

Subjects: nutrient concentrations; sediment fluxes; photosynthetic biofilm

  • Source: ISSN: 2296-701X ; Frontiers in Ecology and Evolution ; https://hal.science/hal-04610621 ; Frontiers in Ecology and Evolution, 2024, 11, ⟨10.3389/fevo.2023.1250892⟩.

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  • 1-10 ل  148 نتائج ل ""consumers""