Results 51 to 60 of about 35,913 (157)
Why are there so many definitions of eutrophication?
Ecological Monographs, Volume 94, Issue 3, August 2024.Abstract Because of the first observations in the 1900s of the oligotrophic and eutrophic states of lakes, researchers have been interested in the process that makes lakes become turbid because of high phytoplankton biomass. Definitions of eutrophication have multiplied and diversified since the mid‐20th century, more than for any other ecological ...
Alexandrine Pannard +11 more
wiley +1 more source
Food Risk Assess Europe, Volume 2, Issue 3, July 2024.Abstract Over the next decade, demographic, societal, technological, economic, environmental, and political factors are expected to significantly influence the agri‐food chain. Demographic shifts, characterised by an aging population and sustained migration, along with evolving consumer demands, will drive a greater emphasis on sustainability.
Gary Delalay +2 more
wiley +1 more source
Etat de la biodiversité en Suisse en 2014 - Une analyse scientifique [PDF]
, 2015 Le présent rapport donne une vue d’ensemble de l’état de la biodiversité en Suisse en 2014. Les principaux instituts et organismes scientifiques de Suisse qui explorent le thème de la biodiversité ont fait part de leurs données et de leur ...
Fischer, M. et al.
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Canadian Geographer / Le géographe canadien, Volume 68, Issue 2, Page 212-223, Summer / été 2024.Résumé La publication de la Politique nationale de l'architecture et de l'aménagement du territoire du Québec (PNAAT) interpelle la géographie à plusieurs égards. Cette politique, qui résulte d'un processus d'élaboration de dix‐huit mois, est mise en récit autour du paradigme de l'aménagement durable, comme le veut la tendance générale aujourd'hui en ...
Martin Simard
wiley +1 more source
Mouvement agroécologique au Brésil : trajectoire, contradictions et perspectives. [PDF]
, 2008 Le présent texte analyse la trajectoire du mouvement alternatif ou écologique dans l’agriculture, en prenant comme référence des données et des informations provenant d’études réalisées au Brésil.
Brandenburg , Alfio
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Global Change Biology, Volume 30, Issue 6, June 2024.Life influences global climate by modulating Earth's atmospheric composition (which determines its greenhouse effect) and reflectivity (which determines its capacity to absorb solar heat). As human‐induced climate change reshapes environments on our planet, so too will changes in ecosystem structure and function alter climate.
Corday R. Selden +9 more
wiley +1 more source
Diagnostic des eaux de surface. Application du système modulaire gradué au Boiron de Morges [PDF]
, 2017 Les variations hydro-climatiques et anthropiques actuelles et prévues dans le futur interrogent sur l’évolution de l’état écologique des cours d’eau.
Chèvre, N. +3 more
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The Glacier Complexes of the Mountain Massifs of the North-West of Inner Asia and their Dynamics [PDF]
, 2011 The subject of this paper is the glaciation of the mountain massifs Mongun-Taiga, Tavan-Boghd-Ola, Turgeni- Nuru, and Harhira-Nuru. The glaciation is represented mostly by small forms that sometimes form a single complex of domeshaped peaks ...
Chistyakov , Kirill V. +3 more
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Canadian Geographer / Le géographe canadien, Volume 68, Issue 1, Page 101-114, Spring / printemps 2024.ABSTRACT When it comes to making planning and development decisions, the concepts of small, medium‐sized, or large cities are sometimes used to adapt public policies and instruments, or even to highlight challenges that are specific to certain categories of city. In this article, we take a look at the various dimensions that can be used to characterize
Michel Rochefort +3 more
wiley +1 more source
African Journal of Ecology, Volume 62, Issue 1, January 2024.Abstract Restoring valuable timber trees is a necessary part of regaining many ecosystem services and products provided by degraded tropical forests. However, knowledge of seed production, a regeneration prerequisite, is limited for many tropical timber tree species.
John Paul Okimat +2 more
wiley +1 more source