Rechercher un terme


Affichage des termes 1 à 25 sur un total de 193

Water balance

Updated on 06/09/2018
Définition
Sens technique
Ratio between inflows to (e.g. precipitation, runoff, capillary rise) and outflows (e.g. transpiration or evaporation) from a given system over a given time interval, which gives the variation in water storage. The water balance allows knowing the soil water storage capacity, potentially usable for different purposes (agriculture or other).
Source
according to INRA and Aquitaine Chamber of Agriculture

Organic farming

Updated on 13/10/2021
Définition
Sens commun

Un Label. Méthode de production agricole excluant le recours aux produits chimiques de synthèse utilisés par l’agriculture industrielle et intensive. Les agriculteurs labellisés « bio » sont regroupés en fédérations avec des cahiers des charges à respecter. Ces derniers comprennent en général l’utilisation d’engrais d’origine naturelle, l’interdiction d’intrants d’origine chimique, la rotation des cultures et des élevages peu intensifs de manière à préserver les sols.

Source
d'après la Cité de l'agriculture

Brown infrastructure (soil)

Updated on 30/10/2020
Définition
Sens technique

Expression inventée sur le modèle de la Trame Verte et Bleue, appliquée à la continuité écologique des sols. Largement ignorés pendant de nombreuses années, ces derniers sont pourtant essentiels au fonctionnement des écosystèmes. Ce terme désigne le réseau écologique en profondeur, à préserver et restaurer.

Source
d'après Bureau d'études Lichen conseil en éco-urbanisme

Agroecology

Updated on 28/04/2021
Définition
Sens technique

Démarche scientifique attentive aux phénomènes biologiques qui combine développement agricole et protection/régénération de l’environnement naturel. Elle est à la base d’un système global de gestion d’une agriculture multifonctionnelle et durable, qui valorise les agro-écosystèmes, optimise la production et minimise les intrants.

Des systèmes de production agricole valorisant la diversité biologique et les processus naturels (cycles de l’azote, du carbone, de l’eau, équilibres biologiques entre organismes ravageurs et auxiliaires des cultures…). L’agroécologie se développe dans le champ scientifique comme une approche intégrant les concepts et méthodes d’une diversité de disciplines dont l’agronomie, l’écologie, l’économie, la sociologie.

 

Source
d'après Ministère de l'agriculture et l'INRAe

Geodiversity

Updated on 09/11/2021
Définition
Sens technique

Ensemble des éléments des sous-sols, sols et paysages qui, assemblés les uns aux autres, constituent des systèmes organisés, issus de processus géologiques (SHARPLES, 1995). Cela concerne autant les phénomènes passés de la Terre (traces de vie, d'écosystèmes et d'environnements), observables dans les sous-sols, sols et paysages, que les phénomènes courants actuels (biologiques, climatiques, atmosphériques) qui agissent sur ces mêmes sous-sols, sols et paysages (EBERHARD, 1997).

Source
d'après l'INPN
Sens réglementaire

Diversité géologique, géomorphologique, hydrologique et pédologique ainsi que l'ensemble des processus dynamiques qui les régissent, y compris dans leurs interactions avec la faune, la flore et le climat. L'article L110-1 du Code de l'environnement modifié par la loi n° 2021-85 du 29 janvier 2021 visant à définir et protéger le patrimoine sensoriel des campagnes françaises

Source
d'après code de l'environnement

Extractable soil water

Updated on 05/03/2019
Définition
Sens commun

Quantity of water that the soil can hold and return immediately to the roots of plants. It is expressed in millimeters (mm).

Source
d'après Ministère chargé de l'environnement et AFB
Sens technique

The extractable soil water (RU) is the fraction of the soil water reserve available to the plant, or that which can be extracted by the plant through root suction. It is expressed in millimetres of water.

Source
d'après INRA

Public water supply and sanitation services

Updated on 25/02/2019
Définition
Sens technique

Municipal public utility in charge of conveying drinking water to the consumer's tap and collecting and treating wastewater and stormwater before returning them to the natural environment. The 30,000 French public water supply and sanitation services are also in charge of the relations with the consumer: information, demand management, billing, etc. The "drinking water supply" service includes the abstraction of water from the natural environment, its potabilization and supply. The "sanitation" service includes the collection, conveyance and treatment of wastewater and the disposal or reuse of sludge…

Source
According to the Ministries of the Environment and Health and AFB

Drinking water supply system

Updated on 25/02/2019
Définition
Sens commun
Part of the overall water supply system including pipes, tanks, pumping stations and other equipment through which water is supplied to users. This part begins at the exit of drinking water production plants and ends at the point of water delivery to the user. It does not include private pipes and accessories of buildings that bring water to the consumption points.
Source
According to the Ministries of the Environment and Health and AFB

Water conveyance system

Updated on 06/09/2018
Définition
Sens commun
Set of techniques to bring water from its spring to consumption sites.
Source
according to Wikipedia

Water softening

Updated on 04/12/2018
Définition
Sens commun
It is a technique to remove minerals that cause water hardness, especially calcium and magnesium.
Source
according to IOWater
Sens technique
A technique consisting in exchanging the calcium and magnesium ions, which are not very soluble and which react with the carbonates of water to form limestone, with the sodium ions which are perfectly soluble in water. This operation is named "ion exchange".
Source
According to UAE

Water aeration

Updated on 06/09/2018
Définition
Sens commun
Bringing water and air in close contact to remove all dissolved gases (especially those responsible for bad odours) from water and introducing oxygen to oxidise certain compounds such as iron and manganese to prevent corrosion).
Source
according to WHO

Water corrosivity

Updated on 06/09/2018
Définition
Sens commun
Qualifies water which can dissolve scale and limestone. Corrosive water contributes to the corrosion of metallic pipes and equipment. It can cause the dissolution of metals (nickel, iron, copper, lead, cadmium...) and in this case induce health risks.
Source
according to the Alsace Regional Health Agency (ARS)

Biological sludge

Updated on 06/09/2018
Définition
Sens commun
Residual solids produced by biological wastewater treatment. Biological sludge is mainly composed of bacterial bodies and secretions.
Source
according to Wikipedia

Water treatment sludge

Updated on 06/09/2018
Définition
Sens commun
Sludge resulting from the treatment of water.
Source
according to the Seine-Normandy Water Agency

Water tower

Updated on 04/12/2018
Définition
Sens commun
A tower with an elevated high-capacity tank used to store drinking water and then convey it by gravity pipes.
Source
according to AFB

Decarbonatation

Updated on 06/09/2018
Définition
Sens technique
Removal of some calcium and magnesium from water to achieve a compromise between the proper mineral balance of water and the optimum level of hardness.
Source
according to IFREMER and the General Council of Seine-et-Marn

Iron removal

Updated on 06/09/2018
Définition
Sens technique
Action to remove iron or its derivatives from a liquid.
Source
according to Wikipedia

Defluorination

Updated on 06/09/2018
Définition
Sens commun
Removal of the surplus of fluorine from water, to reach a concentration that does not expose anyone to dental or bone health risks.
Source
according to the Belgian Development Agency

Demineralisation

Updated on 06/09/2018
Définition
Sens commun
Action to remove minerals and salts from water to produce demineralised water.
Source
according to Lenntech

Nitrate removal

Updated on 06/09/2018
Définition
Sens technique
Action to remove nitrates by filtration through an ion exchange resin.
Source
according to the General Council of Seine-et-Marne

Bottled water

Updated on 06/09/2018
Définition
Sens commun
Kind of water including spring waters and mineral waters, having specific regulatory requirements defined by the Public Health Code.
Source
according to the Brittany Regional Health Agency (ARS)

Water economy

Updated on 06/09/2018
Définition
Sens technique
A branch of the economy that theoretically deals with the relations between human societies and water, especially in economic policies relating to water, its consumption, use and pricing.
Source
according to the Ministry of Ecology

Hydraulic equipment

Updated on 06/09/2018
Définition
Sens commun
Equipment or infrastructure used for the abstraction, storage, treatment, conveying or transfer of water.
Source
according to the Corsican Hydraulic Equipment Office

Treatment line

Updated on 04/12/2018
Définition
Sens commun
Organised series of processes for the treatment of water intended for human consumption.
Source
according to AFB