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结果 1841-1850 的 62,595
The role of natural organics in photochemical air pollution. Issues and research needs.
1981
Dimitriades B.
Comparative ozone dose response of gas exchange in a ponderosa pine stand exposed to long-term fumigations.
1981
Coyne P.I. | Bingham G.E.
A simple and inexpensive method for sampling 2,4-D [dichlorophenoxy acetic acid] and 2,4,5-T [trichlorophenoxy acetic acid] herbicides from air.
1978
Jackson J.W. | Thomas T.C.
Post-application volatillization of pesticides under field conditions.
1978
Taylor A.W.
The impact of gold smelter emissions on vegetation and soils of a sub-arctic forest-tundra transition ecosystem [Canada].
1978
Hocking D. | Kuchar P. | Plambeck J.A. | Smith R.A.
Fluoride cycling near a coastal emission source [Levels in plant tissues].
1978
Ares J.O.
Airborne studies of particles and gases from forest fires [Pollution].
1978
Radke L.F. | Stith J.L. | Hegg D.A. | Hobbs P.V.
Decision support tool for soil sampling of heterogeneous pesticide (chlordecone) pollution 全文
2014
Clostre F. | Lesueur Jannoyer M. | Achard R. | Letourmy P. | Cabidoche Y.M. | Cattan P.
Decision support tool for soil sampling of heterogeneous pesticide (chlordecone) pollution 全文
2014
Clostre F. | Lesueur Jannoyer M. | Achard R. | Letourmy P. | Cabidoche Y.M. | Cattan P.
When field pollution is heterogeneous due to localized pesticide application, as is the case of chlordecone (CLD), the mean level of pollution is difficult to assess. Our objective was to design a decision support tool to optimize soil sampling. We analyzed the CLD heterogeneity of soil content at 0-30- and 30-60-cm depth. This was done within and between nine plots (0.4 to 1.8 ha) on andosol and ferralsol. We determined that 20 pooled subsamples per plot were a satisfactory compromise with respect to both cost and accuracy. Globally, CLD content was greater for andosols and the upper soil horizon (0-30 cm). Soil organic carbon cannot account for CLD intra-field variability. Cropping systems and tillage practices influence the CLD content and distribution; that is CLD pollution was higher under intensive banana cropping systems and, while upper soil horizon was more polluted than the lower one with shallow tillage (<40 cm), deeper tillage led to a homogenization and a dilution of the pollution in the soil profile. The decision tool we proposed compiles and organizes these results to better assess CLD soil pollution in terms of sampling depth, distance, and unit at field scale. It accounts for sampling objectives, farming practices (cropping system, tillage), type of soil, and topographical characteristics (slope) to design a relevant sampling plan. This decision support tool is also adaptable to other types of heterogeneous agricultural pollution at field level. (Résumé d'auteur)
显示更多 [+] 显示较少 [-]Decision support tool for soil sampling of heterogeneous pesticide (chlordecone) pollution 全文
2014
Clostre, Florence | Lesueur Jannoyer, Magalie | Achard, Raphaël | Letourmy, Philippe | Cabidoche, Yves-Marie | Cattan, Philippe | Fonctionnement agroécologique et performances des systèmes de cultures horticoles (UPR HORTSYS) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad) | Pôle de Recherche Agro-Environnementale de la Martinique ; Partenaires INRAE | Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad) | Agrosystèmes tropicaux (ASTRO) ; Institut National de la Recherche Agronomique (INRA) | Conseil Régional de la Martinique et Ministère des Outre-Mer (France)
The online version of this article (doi:10.1007/s11356-013-2095-x) contains supplementary material, which is available to authorized users. | International audience | When field pollution is heterogeneous due to localized pesticide application, as is the case of chlordecone (CLD), the mean level of pollution is difficult to assess. Our objective was to design a decision support tool to optimize soil sampling. We analyzed the CLD heterogeneity of soil content at 0-30- and 30-60-cm depth. This was done within and between nine plots (0.4 to 1.8 ha) on andosol and ferralsol. We determined that 20 pooled subsamples per plot were a satisfactory compromise with respect to both cost and accuracy. Globally, CLD content was greater for andosols and the upper soil horizon (0-30 cm). Soil organic carbon cannot account for CLD intra-field variability. Cropping systems and tillage practices influence the CLD content and distribution; that is CLD pollution was higher under intensive banana cropping systems and, while upper soil horizon was more polluted than the lower one with shallow tillage (< 40 cm), deeper tillage led to a homogenization and a dilution of the pollution in the soil profile. The decision tool we proposed compiles and organizes these results to better assess CLD soil pollution in terms of sampling depth, distance, and unit at field scale. It accounts for sampling objectives, farming practices (cropping system, tillage), type of soil, and topographical characteristics (slope) to design a relevant sampling plan. This decision support tool is also adaptable to other types of heterogeneous agricultural pollution at field level.
显示更多 [+] 显示较少 [-]Decision support tool for soil sampling of heterogeneous pesticide (chlordecone) pollution 全文
2014
Clostre, Florence | Lesueur Jannoyer, Magalie | Achard, Raphaël | Letourmy, Philippe | Cabidoche, Yves-Marie | Cattan, Philippe
When field pollution is heterogeneous due to localized pesticide application, as is the case of chlordecone (CLD), the mean level of pollution is difficult to assess. Our objective was to design a decision support tool to optimize soil sampling. We analyzed the CLD heterogeneity of soil content at 0–30- and 30–60-cm depth. This was done within and between nine plots (0.4 to 1.8 ha) on andosol and ferralsol. We determined that 20 pooled subsamples per plot were a satisfactory compromise with respect to both cost and accuracy. Globally, CLD content was greater for andosols and the upper soil horizon (0–30 cm). Soil organic carbon cannot account for CLD intra-field variability. Cropping systems and tillage practices influence the CLD content and distribution; that is CLD pollution was higher under intensive banana cropping systems and, while upper soil horizon was more polluted than the lower one with shallow tillage (<40 cm), deeper tillage led to a homogenization and a dilution of the pollution in the soil profile. The decision tool we proposed compiles and organizes these results to better assess CLD soil pollution in terms of sampling depth, distance, and unit at field scale. It accounts for sampling objectives, farming practices (cropping system, tillage), type of soil, and topographical characteristics (slope) to design a relevant sampling plan. This decision support tool is also adaptable to other types of heterogeneous agricultural pollution at field level.
显示更多 [+] 显示较少 [-]Increased zinc and copper availability in organic waste amended soil potentially involving distinct release mechanisms 全文
2016
Tella M. | Bravin M. | Thuriès L. | Cazevieille P. | Chevassus-Rosset C. | Collin B. | Chaurand P. | Legros S. | Doelsch E.
Increased zinc and copper availability in organic waste amended soil potentially involving distinct release mechanisms 全文
2016
Tella M. | Bravin M. | Thuriès L. | Cazevieille P. | Chevassus-Rosset C. | Collin B. | Chaurand P. | Legros S. | Doelsch E.
This study aimed at determining the fate of trace elements (TE) following soil organic waste (OW) application. We used a unique combination of X-ray absorption spectroscopy analyses, to determine TE speciation, with incubation experiments for in situ monitoring of TE availability patterns over a time course with the technique of the diffusive gradients in thin films (DGT). We showed that copper (Cu) and zinc (Zn) availability were both increased in OW-amended soil, but their release was controlled by distinct mechanisms. Zn speciation in OW was found to be dominated by an inorganic species, i.e. Zn sorbed on Fe oxides. Zn desorption from Fe oxides could explain the increase in Zn availability in OW-amended soil. Cu speciation in OW was dominated by organic species. Cu release through the mineralization of organic carbon from OW was responsible for the increase in Cu availability. (Résumé d'auteur)
显示更多 [+] 显示较少 [-]Increased zinc and copper availability in organic waste amended soil potentially involving distinct release mechanisms 全文
2016
Tella, Marie | Bravin, Matthieu N. | Thuriès, Laurent | Cazevieille, Patrick | Chevassus-Rosset, Claire | Collin, Blanche | Chaurand, Perrine | Legros, Samuel | Doelsch, Emmanuel
This study aimed at determining the fate of trace elements (TE) following soil organic waste (OW) application. We used a unique combination of X-ray absorption spectroscopy analyses, to determine TE speciation, with incubation experiments for in situ monitoring of TE availability patterns over a time course with the technique of the diffusive gradients in thin films (DGT). We showed that copper (Cu) and zinc (Zn) availability were both increased in OW-amended soil, but their release was controlled by distinct mechanisms. Zn speciation in OW was found to be dominated by an inorganic species, i.e. Zn sorbed on Fe oxides. Zn desorption from Fe oxides could explain the increase in Zn availability in OW-amended soil. Cu speciation in OW was dominated by organic species. Cu release through the mineralization of organic carbon from OW was responsible for the increase in Cu availability.
显示更多 [+] 显示较少 [-]Increased zinc and copper availability in organic waste amended soil potentially involving distinct release mechanisms 全文
2016
Tella, Marie | Bravin, Matthieu N. | Thuriès, Laurent | Cazevieille, Patrick | Chevassus-Rosset, Claire | Collin, Blanche | Chaurand, Perrine | Legros, Samuel | Doelsch, Emmanuel | Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) ; Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) | Recyclage et risque (UPR Recyclage et risque) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)
International audience | This study aimed at determining the fate of trace elements (TE) following soil organic waste (OW) application. We used a unique combination of X-ray absorption spectroscopy analyses, to determine TE speciation, with incubation experiments for in situ monitoring of TE availability patterns over a time course with the technique of the diffusive gradients in thin films (DGT). We showed that copper (Cu) and zinc (Zn) availability were both increased in OW-amended soil, but their release was controlled by distinct mechanisms. Zn speciation in OW was found to be dominated by an inorganic species, i.e. Zn sorbed on Fe oxides. Zn desorption from Fe oxides could explain the increase in Zn availability in OW amended soil. Cu speciation in OW was dominated by organic species. Cu release through the mineralization of organic carbon from OW was responsible for the increase in Cu availability. (C) 2016 Elsevier Ltd. All rights reserved.
显示更多 [+] 显示较少 [-]Field surveys of vegetation during a period of rising electric power generation in the Ohio River Valley [Sulfur dioxide].
1984
Jacobson J.S. | Showman R.E.
