References of "Colinet, Gilles"
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See detailA Methodology for Sampling Design dedicated to the Evaluation of Effects of Soil Type and Land Use on the Fate of Metallic Trace Elements in Contaminated Soils
Liénard, Amandine ULg; Bock, Laurent ULg; Colinet, Gilles ULg

Poster (2011, July 04)

Contaminated soils may present a risk to human health and the environment. The aim of this study is to evaluate the fate of metallic trace elements (Cd, Pb and Zn) brought to soils from atmospheric ... [more ▼]

Contaminated soils may present a risk to human health and the environment. The aim of this study is to evaluate the fate of metallic trace elements (Cd, Pb and Zn) brought to soils from atmospheric fallouts according to soil type and land use. We have developed a sampling soil strategy in order to both map soil contaminations and assess the effects of soils and land use on the mobility of MTE. [less ▲]

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See detailUn conseil de fumure raisonné - le cas du phosphore
Genot, Valérie ULg; Renneson, Malorie ULg; Bock, Laurent ULg et al

Book published by ASBL REQUASUD - Edition 2011 (2011)

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See detailNear infrared reflectance spectroscopy for estimating soil characteristics valuable in the diagnosis of soil fertility
Genot, Valérie ULg; Colinet, Gilles ULg; Bock, Laurent ULg et al

in Journal of Near Infrared Spectroscopy [=JNRIS] (2011), 19(2), 117-138

Soil fertility diagnostics rely not only upon measurement of available nutrients but also upon the soil’s ability to retain these nutrients. Near-infrared reflectance spectroscopy (NIRS) is a rapid and ... [more ▼]

Soil fertility diagnostics rely not only upon measurement of available nutrients but also upon the soil’s ability to retain these nutrients. Near-infrared reflectance spectroscopy (NIRS) is a rapid and non-destructive analytical technique which allows to simultaneously estimate standard soil characteristics and does not require use of chemicals. Previous studies showed that NIRS could be used in local contexts to predict soil properties. The main goal of our research is to build a methodological framework for the use of NIRS at a more global scale. The specific goals of this study were (i) to identify the best spectra treatment and processing –LOCAL versus GLOBAL regression- methods, (ii) to compare NIRS performances to standard chemical protocols and (iii) to evaluate the ability of NIRS to predict soil total organic carbon (TOC), total Nitrogen (TN), clay content and cationic exchange capacity (CEC) for a wide range of soil conditions. We scanned 1,300 samples representative of main soil types of Wallonia under crop, grassland or forest. Various sample preparations were tested prior to NIRS measurements. The most appropriate options were selected according to ANOVA analysis and multiple means comparisons of the spectra principal components. Fifteen pre-treatments were applied to a calibration set and the prediction accuracy was evaluated for GLOBAL and LOCAL modified partial least square (MPLS) regression models. The LOCAL MPLS calibrations showed very encouraging results for all the studied characteristics. On average, for crop soil samples, the prediction coefficient of variation (CVp) was close to 15% for TOC content, 7% for TN content, and 10% for clay content and CEC. The comparisons of repeatability and reproducibility of both NIRS and standard methods showed that NIRS is as reliable as reference methods. Prediction accuracy and technique repeatability allow the use of NIRS within the framework of the soil fertility evaluation and its replacement of standard protocols. LOCAL MPLS can be applied within global datasets, such as the International global soil spectral library. However, the performance of LOCAL MPLS is linked to the number of similar spectra in the dataset and more standard measurements are needed to characterize the least widespread soils. [less ▲]

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See detailActes du premier séminaire Sol-Eau
Degre, Aurore ULg; Colinet, Gilles ULg

Book (2011)

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See detailPotentialités d’application des technologies biologiques pour la depollution des sols en Wallonie
Aldric, Jean-Marc ULg; Druart, P.; Maesen, Philippe ULg et al

in Journal des Ingénieurs (Le) (2011), 132

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See detailRelation between Cobalt Fractionation and its Accumulation in Metallophytes from South of Central Africa
Faucon, Michel-Pierre; Colinet, Gilles ULg; Jitaru, P et al

in Mineralogical Magazine (2011), 75(3), 832

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See detailMéthodologie de constitution d'une collection d'échantillons de sols en relation avec les principaux matériaux parentaux en Wallonie (Belgique méridionale)
Legrain, Xavier ULg; Renneson, Malorie ULg; Genot, Valérie ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2011), 15(S2), 683-697

Over the past few years, there has been growing concern about soils and their properties, thanks to greater environmental awareness. Consequently, existing documents on soil are valuable in risk ... [more ▼]

Over the past few years, there has been growing concern about soils and their properties, thanks to greater environmental awareness. Consequently, existing documents on soil are valuable in risk assessment and for the research of well-adapted solutions. In this context, this paper reviews the main stages of soil mapping in Belgium and presents current works to valorize the Digital Soil Map of Wallonia and update associated databases. Belgium is among the first countries to be completely covered by a detailed soil map (1:20,000). The origin of the Soil Map of Belgium, its realisation between 1947 and 1991, the principles and characteristics as well as the related products are described. But since its publication, due to the increasing need of soil information and thanks to the development of geographical information systems the Walloon part of the map was digitalised between 2000 and 2003 by the Digital Soil Map of Wallonia (DSMW) Project. From this early action at regional level, a selection of immediately derived products is presented and briefly commented. However, if these products go beyond the initial objective of agricultural production increase, they do not always meet the environmental challenges nor the future legislation at European, national and regional levels. To fill this gap, the recent tasks carried out by the DMSW team are presented through a description of their methodological and technical framework. The long-term objective is to build Regional Soil Information Systems based on the use of the Digital Soil Map of Wallonia as a tool of integration, structuring and referencing of pedological information. [less ▲]

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See detailAgro-pedological Assessment of the Traditional Yuanyang Rice Terraces of Yunnan Province, China
Colinet, Gilles ULg; Koulos, Keiko; Wu, Bozhi et al

in Journal of Resources and Ecology (2011), 2(4), 353-361

As a contribution to a long-term evaluation of the sustainability of agro-ecosystems in the Yuanyang rice terraces, this paper reviews the bio-physical environment of the terraced landscape in a small ... [more ▼]

As a contribution to a long-term evaluation of the sustainability of agro-ecosystems in the Yuanyang rice terraces, this paper reviews the bio-physical environment of the terraced landscape in a small catchment around Qingkou village and assesses soil fertility in the village crop growing area. A soillandscape organization pattern was developed using a geomorphopedological approach. Anthropogenic, climatic and topographic factors were identified as the main soil forming factors. Soil capability and associated edaphic constraints were assessed and the main soil types were identified and classified using FAO protocols. Spatial patterns of soil fertility appear quite homogeneous. Soils are acid and cation exchange capacity and nutrient reserves are generally low. The agro-ecosystem has largely been developed by the Hani population. This agro-ecosystem has succeeded in maintaining a relatively dynamic nutrient circulation system. Current research is focusing on: (i) the evaluation of the representativeness of the studied area compared to the whole terraced system in the Yuanyang terraced landscape; (ii) measurements of nutrients flows at the field scale; (iii) the effects of soil properties on crop yields; and (iv) up-scaling field levels results to larger spatial units. [less ▲]

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See detailPour un échantillonnage et un conseil agronomique raisonné, les outils d'aide à la décision
Genot, Valérie ULg; Buffet, Dominique; Legrain, Xavier ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2011), 15(S2), 657-668

Environmental and agronomic issues require always more well thought and suited farmer management of agricultural inputs; soil analysis is therefore an essential tool to support decision. However, for a ... [more ▼]

Environmental and agronomic issues require always more well thought and suited farmer management of agricultural inputs; soil analysis is therefore an essential tool to support decision. However, for a soil analysis to provide valuable information, it is essential for the sample to be representative of the studied field. Without this representativeness, an analytical result, as accurate as it could be, would not be of interest if it could mislead the farmer. In practice, the main difficulty for the sampler is the recognition of soil criteria which are essential to provide a fertility advice, especially in Wallonia (Belgium) where soil variability is very important. With the Digital Soil Map of Wallonia (DSMW), drowned at the scale 1/5,000, it seems appropriate to give these information to the samplers in an useful form for routine works. That is why a mapping tool for decision support, named REQUACARTO, was designed to be used for soil analysis by provincial laboratories, members of the REQUASUD laboratories network. This tool responds to a real requirement in Wallonia: achieving a quality sampling for the development of personalized soil fertility advice. [less ▲]

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See detailCartographie des sols en Belgique : aperçu historique et présentation des travaux actuels de valorisation et de révision de la Carte Numérique des Sols de Wallonie
Legrain, Xavier ULg; Demarcin, Pierre ULg; Colinet, Gilles ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2011), 15(S2), 647-656

Over the past few years, there has been growing concern about soils and their properties, thanks to greater environmental awareness. Consequently, existing documents on soil are valuable in risk ... [more ▼]

Over the past few years, there has been growing concern about soils and their properties, thanks to greater environmental awareness. Consequently, existing documents on soil are valuable in risk assessment and for the research of well-adapted solutions. In this context, this paper reviews the main stages of soil mapping in Belgium and presents current works to valorize the Digital Soil Map of Wallonia and update associated databases. Belgium is among the first countries to be completely covered by a detailed soil map (1:20,000). The origin of the Soil Map of Belgium, its realisation between 1947 and 1991, the principles and characteristics as well as the related products are described. But since its publication, due to the increasing need of soil information and thanks to the development of geographical information systems the Walloon part of the map was digitalised between 2000 and 2003 by the Digital Soil Map of Wallonia (DSMW) Project. From this early action at regional level, a selection of immediately derived products is presented and briefly commented. However, if these products go beyond the initial objective of agricultural production increase, they do not always meet the environmental challenges nor the future legislation at European, national and regional levels. To fill this gap, the recent tasks carried out by the DMSW team are presented through a description of their methodological and technical framework. The long-term objective is to build Regional Soil Information Systems based on the use of the Digital Soil Map of Wallonia as a tool of integration, structuring and referencing of pedological information. [less ▲]

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See detailIntérêt des cartes des sols pour l'élaboration d'une stratégie d'échantillonnage en sols contaminés par retombées atmosphériques : application à l'étude de l'effet sol sur le devenir des éléments traces métalliques
Liénard, Amandine ULg; Bock, Laurent ULg; Colinet, Gilles ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2011), 15(2), 669-682

As a result of pollution from atmospheric dusts, some sites of Wallonia (Belgium) are contaminated by metallic trace elements (MTE) such as cadmium, lead and zinc. These metalliferous soils are called ... [more ▼]

As a result of pollution from atmospheric dusts, some sites of Wallonia (Belgium) are contaminated by metallic trace elements (MTE) such as cadmium, lead and zinc. These metalliferous soils are called ‘calaminary sites’. The major aim of this study concerns the multi-scalar characterization of MTE distribution in these contaminated soils and landscapes. The strategy of sampling described in this paper is based on the influence of soil type and its land use on the fate of MTE. After analysis of collected samples, it will be possible to have an idea of the distribution of MTE among soil components, and therefore, to evaluate the risks caused by environmental changes such as an agricultural use of afforested areas. [less ▲]

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See detailSoil, plant and goat faeces can be used to map trace elements contaminations in the town of Lubumbashi (RDCongo)
Mpundu, Michel; Mobinzo, Paul; Bindelle, Jérôme ULg et al

in The 6th International Conference on Soils of Urban, Industrial, Traffic, Mining and Military Areas: Program, Abstracts and participants directory (2011)

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See detailAvailability of Trace Elements for Chinese Cabbage Amended with Lime in a Periurban Market Garden in Yunnan Province, China
Zu, Yanqun; Bock, Laurent ULg; Schvartz, Christian et al

in Communications in Soil Science & Plant Analysis (2011)

Pot experiments were conducted in the laboratory with lime applications to decrease trace elements in Chinese cabbage produced on soils contaminated by trace ele- ments in the intensive periurban area in ... [more ▼]

Pot experiments were conducted in the laboratory with lime applications to decrease trace elements in Chinese cabbage produced on soils contaminated by trace ele- ments in the intensive periurban area in Chenggong County, Yunnan Province, China. Soil was an acidic loam developed from lacustrine-alluvial deposits. Results showed the following: (1) soil pH increased from 5.3 to 6.5, and acetic-acid-extractable trace-element contents and ratio of acetic-acid-extractable trace-element contents in treatments relative to those in the control (RRCT) decreased with increased rate of lime application. (2) Chinese cabbage more easily absorbed acetic-acid-extractable trace elements. Enrichment coefficients related to trace-element availability (AEC) of lead (Pb; mean: 3.3) and zinc (Zn; mean: 5.8) were stable, and the AEC of cadmium (Cd) was 1.8–2.0 with increased lime application rate. (3) Trace-element contents in Chinese cabbage decreased, and biomass of Chinese cabbage increased, with lime application rate. Trace-element contents in soil solution and acetic-acid-extractable trace-element contents can predict trace-element contents in Chinese cabbage, especially for soil solution. Lime quality and trace-element accumulation in Chinese cabbage should be taken into account when amendment is added to in situ soil contaminated with trace elements. [less ▲]

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See detailMay Rare Metallophytes Benefit from Disturbed Soils Following Mining Activity? The Case of the Crepidorhopalon tenuis in Katanga (D. R. Congo)
Faucon, Michel-Pierre; Parmentier, Ingrid; Colinet, Gilles ULg et al

in Restoration Ecology (2011), 19

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See detailSoil redistribution in rural catchment: how fifty years old soil survey can help model improvement
Legrain, Xavier ULg; Colard, François ULg; Colinet, Gilles ULg et al

in Geophysical Research Abstracts (2011), 13

In a context of high urbanization’s pressure in rural zones, landscape modelling of erosion opens interesting perspectives in land use planning. In most cases, validation data are the weak point. In this ... [more ▼]

In a context of high urbanization’s pressure in rural zones, landscape modelling of erosion opens interesting perspectives in land use planning. In most cases, validation data are the weak point. In this study, we present how fifty years old soil observations can help progressing towards a more accurate validation of such modelling in rural areas. As of 1947, a comprehensive systematic survey of the Belgian soil cover was initiated. Field observations were done every 75 meters by soil auger to a standard depth of 125cm (if possible). Map units were delineated on cadastral field survey maps at scale 1:5,000, based on auger observations and landscape context, then generalised on the 1:10,000 topographic base map for a publication at 1:20,000 scale. The legend of the map includes more than 6,000 different soil types and variants. More recently, the Walloon part of this map was digitalised to produce the Digital Soil Map of Wallonia (DSMW). A 10m resolution DEM was build up in 2009. Its RMSE is 0.8m. Soil erodibility and runoff production maps were derived at the same resolution. A land use map exists at 1:10,000 scale since 2005 and is updated yearly. We applied the USPED model (Unit Stream Power - based Erosion Deposition) (Moore and Burch, 1986) in a small watershed where first soil observations took place in 1956. New soil observations were done in 2010. The watershed is completely included in a cultivated area. The model was applied considering a transport capacity limitation proposed by Mitasova and Mitas (1996). Furthermore, we slightly modified it, in order to take into account recent advances in RUSLE factors computations like LS computation proposed by Desmet and Govers (1996) and Nearing (1997). The spatial distribution of erosion and deposition area produced by the model on the basis of the current DEM is consistent with a comparison between old and recent pedological observations. Furthermore, a comparison between horizons’ thickness in 1956 and 2010 gives spatially distributed quantitative information on erosion and deposition. Nevertheless, some uncertainties remain since the pedological descriptions are based on thickness classes, due to the variability of soil cartographical units, and since the current DEM is itself affected by an uncertainty on the elevation value. Future research will then focus on more accurate elevation data as starting point and then it will become conceivable to model the evolution of watershed elevation including land use and other local anthropogenic structures like hedgerows, ditches or grass strips. [less ▲]

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See detailFactors affecting trace element content in periurban market garden subsoil in Yunnan Province, China
Zu, Yanqun; Bock, Laurent ULg; Schvartz, Christian et al

in Journal of Environmental Sciences (China) (2011), 23(3), 488-496

Detailed reference viewed: 17 (3 ULg)