Search results for "communitie"
showing 10 items of 385 documents
Rehabilitation of Mediterranean anthropogenic soils using symbiotic wild legume shrubs: Plant establishment and impact on the soil bacterial communit…
2010
Abstract Susceptibility to desertification in southern Europe is increasing and rehabilitation of desertification-threatened Mediterranean soils is a challenge due to the inhospitality of the environment. In particular, recovery of anthropogenic soils (mainly human-derived artefacts from housing construction and other inert materials or topsoil of terminal phase municipal landfills) cannot rely on spontaneous processes and low-cost/low-impact strategies are needed to prevent desertification. Mediterranean wild legume shrubs have great potential for soil recovery and conservation against desertification, thanks to drought resistance, and their symbiosis with N2-fixing rhizobia and arbuscular…
Microbial communities and novel taxa in « Continental Smokers » of northern Greece
2017
Analogously to the ocean-bottom black/white smokers, “continental smokers” have recently been defined as sites of mantle degassing through continental crust. The goal of this research, carried out within the Deep Carbon Observatory Community, is to investigate the role of deeplysourced fluids in niche ecosystem differentiation in European continental smokers. A 16S rRNA gene survey of microbial communities was carried out on 11 geothermal manifestations of northern Greece, all showing a distinct contribution of mantle fluids (R/Ra up to 1.2) that allow to classify them as continental smokers. The selected sites cover a wide range of temperatures (15-77 °C), pH (6.11-8.46), Eh (-289 – 40 mV)…
Impact of innovative agricultural practices of carbon sequestration on soil microbial community. In: Carbon sequestration in agricultural soils: a mu…
2012
Abstract This chapter deals with the impact on soil microbiology of innovative management techniques for enhancing carbon sequestration. Within the MESCOSAGR project, the effect of different field treatments was investigated at three experimental sites differing in pedo-climatic characteristics. Several microbiological parameters were evaluated to describe the composition of soil microbial communities involved in the carbon cycle, as well as to assess microbial biomass and activity. Results indicated that both compost and catalyst amendments to field soils under maize or wheat affected microbial dynamics and activities, though without being harmful to microbial communities.
Utilization of microbial abundance and diversity as indicators of the origin of soil aggregates produced by earthworms
2013
This study aimed at testing the capability of microbial community structure and abundance to be used as bioindicators of the origin of earthworm cast aggregates. Compact surface casts produced by Amynthas khami and surrounding aggregates lacking visible signs of biological activity (control) were left to disaggregate by natural rainfall and separated into four size classes (5-2, 2-0.5, 0.5-0.25 and <0.25 mm). The genetic structure and the abundance of the bacterial and fungal communities were characterized using B- and F-ARISA fingerprinting approach and quantitative PCR directly from DNA extracted from soil. Bacteria and to a lesser extent fungi were more abundant in casts than in control …
Minimum information about a biofilm experiment (MIABiE): standards for reporting experiments and data on sessile microbial communities living at inte…
2014
The minimum information about a biofilm experiment (MIABiE) initiative has arisen from the need to find an adequate and scientifically sound way to control the quality of the documentation accompanying the public deposition of biofilm-related data, particularly those obtained using high-throughput devices and techniques. Thereby, the MIABiE consortium has initiated the identification and organization of a set of modules containing the minimum information that needs to be reported to guarantee the interpretability and independent verification of experimental results and their integration with knowledge coming from other fields. MIABiE does not intend to propose specific standards on how biof…
Editorial: Elevation Gradients: Microbial Indicators of Climate Change?
2019
Life cycle assessment of solar communities
2020
Abstract This study presents the comparison of the life cycle performance of two different urban energy systems, applied to a large mixed-use community, in Calgary (Canada). The two systems investigated consist of an energy efficient conventional system, using heat pumps for heating, cooling and domestic hot water; the second design widely deploys solar thermal panels coupled to district heating infrastructure and a borehole seasonal thermal storage. The analysis is based on the Life Cycle Assessment methodology and includes the stages of raw materials and energy supply, system manufacturing, use stage of the systems, generation and use of energy on-site, maintenance and components’ substit…
À la recherche des maillages communaux d'antan. Présentation du projet ANR COMMUNES et de quelques résultats préliminaires
2020
The COMMUNES project aims: 1) to produce the first H-GIS in the world providing annualised boundary data for all French municipalities from the Revolution to the present day. Each spatial unit will include population data and metrics of access to networks of transport; 2) to develop a multimodal model of transport to allow the dynamic analysis of the relationship between economic and demographic changes and accessibility from the end of the 18th century to the present day; 3) to represent and analyse on a very fine scale some key demographic and socio-economic phenomena. Our method for reconstructing historic administrative boundaries combines the study of historical and cartographic source…
Zbiorowiska z klasy Utricularietea intermedio-minoris DEN HARTOG et SEGAL 1964 em. PIETSCH 1965 w Słowińskim Parku Narodowym
2017
Zbiorowiska z klasy Utricularietea intermedio-minoris DEN HARTOG et SEGAL 1964 em. PIETSCH 1965 należą do wyspecjalizowanych pod względem ekologicznym fitocenoz, występujących w wodach oligotroficznych oraz dystroficznych na podłożu torfowym. Polsce należą do grupy zbiorowisk bardzo słabo zbadanych. W 2014 r. na terenie Słowińskiego Parku Narodowego zbiorowiska z klasy Utricularietea intermedio-minoris zostały stwierdzone w dystroficznym zbiorniku wodnym koło miejscowości Gać. Są to: Sparganietum minimi (współrzędne geograficzne 54°69’05,65’’ N, 17°50’40,42’’ E) oraz Scorpidio-Utricularietum minoris (współrzędne geograficzne 54°69’06,52’’ N, 17°50’50,29’’ E). Akwen, w którym stwierdzono fit…
Desigualdad social y toma de decisiones en los comunales: El gobierno del mayor canal de riego de España (la Acequia Real del Júcar, Valencia) en el …
2021
espanolHacia 1850 la Acequia Real del Jucar era el mayor sistema comunitario de riego de Espana y se caracterizaba por la fuerte desigualdad social entre los regantes. El articulo analiza los cambios que experimentaron las instituciones para su gobierno en una etapa de profundas transformaciones sociales y politicas en la sociedad espanola, la segunda mitad del siglo XIX. Los organos de gobierno del canal estaban sujetos a una organizacion de tipo jerarquico que comprendia dos grandes niveles: por una parte, estaba la direccion del conjunto del sistema, en la que solo una reducida elite de terratenientes podia intervenir; por otra, habia organos de gestion local que administraban las sucesi…