Bienvenue au Centre de Documentation et d'Information de 2iE: Plus de 27422 ouvrages vous sont proposés
Détail de l'éditeur
U. S. Geological Survey |
Documents disponibles chez cet éditeur (26)
Faire une suggestion Affiner la recherche
U.S. Geological Survey Supply paper, 2274. Relation between ground-water quality and mineralogy in the coal-producing norton formation of Buchaman county, Virginia / Powell, J. D.
Titre de série : U.S. Geological Survey Supply paper, 2274 Titre : Relation between ground-water quality and mineralogy in the coal-producing norton formation of Buchaman county, Virginia Type de document : texte imprimé Auteurs : Powell, J. D. ; Larson, J. D. Mention d'édition : U. S. Geological Survey Editeur : U. S. Geological Survey Année de publication : 1985 ISBN/ISSN/EAN : CI-05054 Note générale : The geochimical processes controlling groundwater chemistry in the coal-producing state if southwestern Virginia include hydrolysis of silicates, dissolution of carbonates, oxidation of pyrite, catian exhange and precipitation of secondary minerals, kaolinite and geothite. Core material from the Norton-Formation of the Pennsylvania period is composed of slightly more than one-half sandstone siltstone and minor amounts of shale, clay and coal account for the majority of the remainder. Petrographic analyses and x-ray diffraction studie indicate that the sandstone is about 75 percent quartz, 15 percent plagioclase feldspar, 2 percent potassium feldspar, 2 percent muscovite, 4 percent chlorite and 1 percent siderite... Langues : Anglais (eng) Mots-clés : Hydrogéologie Minéralogie Hydrologie Climat Eau souterraine Qualité de l'eau Hydrochimie Index. décimale : 551.48 Hydrologie : Résumé : The geochimical processes controlling groundwater chemistry in the coal-producing state if southwestern Virginia include hydrolysis of silicates, dissolution of carbonates, oxidation of pyrite, catian exhange and precipitation of secondary minerals, kaolinite and geothite. Core material from the Norton-Formation of the Pennsylvania period is composed of slightly more than one-half sandstone siltstone and minor amounts of shale, clay and coal account for the majority of the remainder. Petrographic analyses and x-ray diffraction studie indicate that the sandstone is about 75 percent quartz, 15 percent plagioclase feldspar, 2 percent potassium feldspar, 2 percent muscovite, 4 percent chlorite and 1 percent siderite... Note de contenu : The geochimical processes controlling groundwater chemistry in the coal-producing state if southwestern Virginia include hydrolysis of silicates, dissolution of carbonates, oxidation of pyrite, catian exhange and precipitation of secondary minerals, kaolinite and geothite. Core material from the Norton-Formation of the Pennsylvania period is composed of slightly more than one-half sandstone siltstone and minor amounts of shale, clay and coal account for the majority of the remainder. Petrographic analyses and x-ray diffraction studie indicate that the sandstone is about 75 percent quartz, 15 percent plagioclase feldspar, 2 percent potassium feldspar, 2 percent muscovite, 4 percent chlorite and 1 percent siderite... U.S. Geological Survey Supply paper, 2274. Relation between ground-water quality and mineralogy in the coal-producing norton formation of Buchaman county, Virginia [texte imprimé] / Powell, J. D. ; Larson, J. D. . - U. S. Geological Survey . - U. S. Geological Survey, 1985.
ISSN : CI-05054
The geochimical processes controlling groundwater chemistry in the coal-producing state if southwestern Virginia include hydrolysis of silicates, dissolution of carbonates, oxidation of pyrite, catian exhange and precipitation of secondary minerals, kaolinite and geothite. Core material from the Norton-Formation of the Pennsylvania period is composed of slightly more than one-half sandstone siltstone and minor amounts of shale, clay and coal account for the majority of the remainder. Petrographic analyses and x-ray diffraction studie indicate that the sandstone is about 75 percent quartz, 15 percent plagioclase feldspar, 2 percent potassium feldspar, 2 percent muscovite, 4 percent chlorite and 1 percent siderite...
Langues : Anglais (eng)
Mots-clés : Hydrogéologie Minéralogie Hydrologie Climat Eau souterraine Qualité de l'eau Hydrochimie Index. décimale : 551.48 Hydrologie : Résumé : The geochimical processes controlling groundwater chemistry in the coal-producing state if southwestern Virginia include hydrolysis of silicates, dissolution of carbonates, oxidation of pyrite, catian exhange and precipitation of secondary minerals, kaolinite and geothite. Core material from the Norton-Formation of the Pennsylvania period is composed of slightly more than one-half sandstone siltstone and minor amounts of shale, clay and coal account for the majority of the remainder. Petrographic analyses and x-ray diffraction studie indicate that the sandstone is about 75 percent quartz, 15 percent plagioclase feldspar, 2 percent potassium feldspar, 2 percent muscovite, 4 percent chlorite and 1 percent siderite... Note de contenu : The geochimical processes controlling groundwater chemistry in the coal-producing state if southwestern Virginia include hydrolysis of silicates, dissolution of carbonates, oxidation of pyrite, catian exhange and precipitation of secondary minerals, kaolinite and geothite. Core material from the Norton-Formation of the Pennsylvania period is composed of slightly more than one-half sandstone siltstone and minor amounts of shale, clay and coal account for the majority of the remainder. Petrographic analyses and x-ray diffraction studie indicate that the sandstone is about 75 percent quartz, 15 percent plagioclase feldspar, 2 percent potassium feldspar, 2 percent muscovite, 4 percent chlorite and 1 percent siderite... Réservation
Réserver ce document
Exemplaires(8)
Code-barres Cote Support Localisation Section Disponibilité CI03B054.77714 CI-05054 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B054.77713 CI-05054 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B054.77712 CI-05054 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B054.77711 CI-05054 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B054.77710 CI-05054 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B054.77709 CI-05054 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B054.77708 CI-05054 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B054.77707 CI-05054 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible U.S. Geological Survey Supply paper, 2277. A primer on trace metal-sediment chemistry / Horowitz, A. J.
Titre de série : U.S. Geological Survey Supply paper, 2277 Titre : A primer on trace metal-sediment chemistry Type de document : texte imprimé Auteurs : Horowitz, A. J. Mention d'édition : U. S. Geological Survey Editeur : U. S. Geological Survey Année de publication : 1985 ISBN/ISSN/EAN : CI-05052 Note générale : In most aquatic systems, concentration of trace metals in suspended sediment and the top few centimeters of botton sediment are for greater than concentrations of trace metals disolved in the water column. Consequently, the distribution, transport and availability of these constituents can not be intelligently evaluated, nor can their envrionmental impact be determined or predicted solely through the sampling and analysis of disolved plans. This primer is designed to acquaint the reader with the basic principles that govern the concentration and distribution of trace metals associated with bottom an suspended sediments ... Langues : Anglais (eng) Mots-clés : Sédimentation Hydrochimie Géologie Analyse chimique Débit solide Métal Index. décimale : 551.48 Hydrologie : Résumé : In most aquatic systems, concentration of trace metals in suspended sediment and the top few centimeters of botton sediment are for greater than concentrations of trace metals disolved in the water column. Consequently, the distribution, transport and availability of these constituents can not be intelligently evaluated, nor can their envrionmental impact be determined or predicted solely through the sampling and analysis of disolved plans. This primer is designed to acquaint the reader with the basic principles that govern the concentration and distribution of trace metals associated with bottom an suspended sediments ... Note de contenu : In most aquatic systems, concentration of trace metals in suspended sediment and the top few centimeters of botton sediment are for greater than concentrations of trace metals disolved in the water column. Consequently, the distribution, transport and availability of these constituents can not be intelligently evaluated, nor can their envrionmental impact be determined or predicted solely through the sampling and analysis of disolved plans. This primer is designed to acquaint the reader with the basic principles that govern the concentration and distribution of trace metals associated with bottom an suspended sediments ... U.S. Geological Survey Supply paper, 2277. A primer on trace metal-sediment chemistry [texte imprimé] / Horowitz, A. J. . - U. S. Geological Survey . - U. S. Geological Survey, 1985.
ISSN : CI-05052
In most aquatic systems, concentration of trace metals in suspended sediment and the top few centimeters of botton sediment are for greater than concentrations of trace metals disolved in the water column. Consequently, the distribution, transport and availability of these constituents can not be intelligently evaluated, nor can their envrionmental impact be determined or predicted solely through the sampling and analysis of disolved plans. This primer is designed to acquaint the reader with the basic principles that govern the concentration and distribution of trace metals associated with bottom an suspended sediments ...
Langues : Anglais (eng)
Mots-clés : Sédimentation Hydrochimie Géologie Analyse chimique Débit solide Métal Index. décimale : 551.48 Hydrologie : Résumé : In most aquatic systems, concentration of trace metals in suspended sediment and the top few centimeters of botton sediment are for greater than concentrations of trace metals disolved in the water column. Consequently, the distribution, transport and availability of these constituents can not be intelligently evaluated, nor can their envrionmental impact be determined or predicted solely through the sampling and analysis of disolved plans. This primer is designed to acquaint the reader with the basic principles that govern the concentration and distribution of trace metals associated with bottom an suspended sediments ... Note de contenu : In most aquatic systems, concentration of trace metals in suspended sediment and the top few centimeters of botton sediment are for greater than concentrations of trace metals disolved in the water column. Consequently, the distribution, transport and availability of these constituents can not be intelligently evaluated, nor can their envrionmental impact be determined or predicted solely through the sampling and analysis of disolved plans. This primer is designed to acquaint the reader with the basic principles that govern the concentration and distribution of trace metals associated with bottom an suspended sediments ... Réservation
Réserver ce document
Exemplaires(8)
Code-barres Cote Support Localisation Section Disponibilité CI03B052.77706 CI-05052 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B052.77705 CI-05052 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B052.77704 CI-05052 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B052.77703 CI-05052 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B052.77702 CI-05052 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B052.77701 CI-05052 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B052.77700 CI-05052 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B052.77699 CI-05052 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible U.S. Geological Survey Water Supplu paper, 2177. Hydrologic effects of stress-relief fracturing in an appallachian valley / Wyrick, G. G.
Titre de série : U.S. Geological Survey Water Supplu paper, 2177 Titre : Hydrologic effects of stress-relief fracturing in an appallachian valley Type de document : texte imprimé Auteurs : Wyrick, G. G. ; Borchers, J. W. Mention d'édition : U. S. Geological Survey Editeur : U. S. Geological Survey Année de publication : 1981 ISBN/ISSN/EAN : CI-05114 Note générale : A hydrologic study at Twin Falls State Park, Wyoming county, West Virginia, was made to determine how fracture systems affect the occurrence and movement of ground water in a typical valley of the Applalachian Plateau Physiographic Province. Twin Falls was selected because it is generally unaffected by factors that would complicate an analysis of the data. The study area was the Black Fork Valley at Twin Falls. The valley is about 3 milles long and 400 to 600 feet wide and is cut into massive sandstone units interbedded with thin coal and shale beds. The study was made to determine how aquifer characteristics were related to fracture systems in this valley, so that the relation could be applied to studies of other valley. Langues : Anglais (eng) Mots-clés : Hydrologie Réseau hydrographique Hydrogéologie Eau souterraine Fracturation Pompage d'essai Index. décimale : 551.48 Hydrologie : Résumé : A hydrologic study at Twin Falls State Park, Wyoming county, West Virginia, was made to determine how fracture systems affect the occurrence and movement of ground water in a typical valley of the Applalachian Plateau Physiographic Province. Twin Falls was selected because it is generally unaffected by factors that would complicate an analysis of the data. The study area was the Black Fork Valley at Twin Falls. The valley is about 3 milles long and 400 to 600 feet wide and is cut into massive sandstone units interbedded with thin coal and shale beds. The study was made to determine how aquifer characteristics were related to fracture systems in this valley, so that the relation could be applied to studies of other valley. Note de contenu : A hydrologic study at Twin Falls State Park, Wyoming county, West Virginia, was made to determine how fracture systems affect the occurrence and movement of ground water in a typical valley of the Applalachian Plateau Physiographic Province. Twin Falls was selected because it is generally unaffected by factors that would complicate an analysis of the data. The study area was the Black Fork Valley at Twin Falls. The valley is about 3 milles long and 400 to 600 feet wide and is cut into massive sandstone units interbedded with thin coal and shale beds. The study was made to determine how aquifer characteristics were related to fracture systems in this valley, so that the relation could be applied to studies of other valley. U.S. Geological Survey Water Supplu paper, 2177. Hydrologic effects of stress-relief fracturing in an appallachian valley [texte imprimé] / Wyrick, G. G. ; Borchers, J. W. . - U. S. Geological Survey . - U. S. Geological Survey, 1981.
ISSN : CI-05114
A hydrologic study at Twin Falls State Park, Wyoming county, West Virginia, was made to determine how fracture systems affect the occurrence and movement of ground water in a typical valley of the Applalachian Plateau Physiographic Province. Twin Falls was selected because it is generally unaffected by factors that would complicate an analysis of the data. The study area was the Black Fork Valley at Twin Falls. The valley is about 3 milles long and 400 to 600 feet wide and is cut into massive sandstone units interbedded with thin coal and shale beds. The study was made to determine how aquifer characteristics were related to fracture systems in this valley, so that the relation could be applied to studies of other valley.
Langues : Anglais (eng)
Mots-clés : Hydrologie Réseau hydrographique Hydrogéologie Eau souterraine Fracturation Pompage d'essai Index. décimale : 551.48 Hydrologie : Résumé : A hydrologic study at Twin Falls State Park, Wyoming county, West Virginia, was made to determine how fracture systems affect the occurrence and movement of ground water in a typical valley of the Applalachian Plateau Physiographic Province. Twin Falls was selected because it is generally unaffected by factors that would complicate an analysis of the data. The study area was the Black Fork Valley at Twin Falls. The valley is about 3 milles long and 400 to 600 feet wide and is cut into massive sandstone units interbedded with thin coal and shale beds. The study was made to determine how aquifer characteristics were related to fracture systems in this valley, so that the relation could be applied to studies of other valley. Note de contenu : A hydrologic study at Twin Falls State Park, Wyoming county, West Virginia, was made to determine how fracture systems affect the occurrence and movement of ground water in a typical valley of the Applalachian Plateau Physiographic Province. Twin Falls was selected because it is generally unaffected by factors that would complicate an analysis of the data. The study area was the Black Fork Valley at Twin Falls. The valley is about 3 milles long and 400 to 600 feet wide and is cut into massive sandstone units interbedded with thin coal and shale beds. The study was made to determine how aquifer characteristics were related to fracture systems in this valley, so that the relation could be applied to studies of other valley. Réservation
Réserver ce document
Exemplaires(8)
Code-barres Cote Support Localisation Section Disponibilité CI03B114.97265 CI-05114 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B114.97266 CI-05114 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B114.97264 CI-05114 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B114.97263 CI-05114 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B114.97262 CI-05114 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B114.97261 CI-05114 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B114.97260 CI-05114 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B114.97259 CI-05114 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible U.S. Geological Survey Water Supply, 2205. Mathematical model of the Tesuque aquifer system near Projoaque, New Mexico / Hearne, G. A.
Titre de série : U.S. Geological Survey Water Supply, 2205 Titre : Mathematical model of the Tesuque aquifer system near Projoaque, New Mexico Type de document : texte imprimé Auteurs : Hearne, G. A. Mention d'édition : U. S. Geological Survey Editeur : U. S. Geological Survey Année de publication : 1985 ISBN/ISSN/EAN : CI-05101 Note générale : A three dimensional digital model ground water flow was constructed to represent the dipping anisotropic beds of the Tesuque aquifer system underlying the Projoaque river basin and vicinity, New Mexico. The description of the prototype is simple enough to flow a mathematical simulation. This section of the report describes the analogy between the prototype and the model. The description is devided into three subsections : structure aquifer characteristics, and boundaries. In each instance a description of the prototype is followed by a description of the analogy used in the digital model. Langues : Anglais (eng) Mots-clés : Bassin versant Eau souterraine Eau de surface Hydrologie Modèle mathématique Bassin hydrologique Index. décimale : 551.48 Hydrologie : Résumé : A three dimensional digital model ground water flow was constructed to represent the dipping anisotropic beds of the Tesuque aquifer system underlying the Projoaque river basin and vicinity, New Mexico. The description of the prototype is simple enough to flow a mathematical simulation. This section of the report describes the analogy between the prototype and the model. The description is devided into three subsections : structure aquifer characteristics, and boundaries. In each instance a description of the prototype is followed by a description of the analogy used in the digital model. Note de contenu : A three dimensional digital model ground water flow was constructed to represent the dipping anisotropic beds of the Tesuque aquifer system underlying the Projoaque river basin and vicinity, New Mexico. The description of the prototype is simple enough to flow a mathematical simulation. This section of the report describes the analogy between the prototype and the model. The description is devided into three subsections : structure aquifer characteristics, and boundaries. In each instance a description of the prototype is followed by a description of the analogy used in the digital model. U.S. Geological Survey Water Supply, 2205. Mathematical model of the Tesuque aquifer system near Projoaque, New Mexico [texte imprimé] / Hearne, G. A. . - U. S. Geological Survey . - U. S. Geological Survey, 1985.
ISSN : CI-05101
A three dimensional digital model ground water flow was constructed to represent the dipping anisotropic beds of the Tesuque aquifer system underlying the Projoaque river basin and vicinity, New Mexico. The description of the prototype is simple enough to flow a mathematical simulation. This section of the report describes the analogy between the prototype and the model. The description is devided into three subsections : structure aquifer characteristics, and boundaries. In each instance a description of the prototype is followed by a description of the analogy used in the digital model.
Langues : Anglais (eng)
Mots-clés : Bassin versant Eau souterraine Eau de surface Hydrologie Modèle mathématique Bassin hydrologique Index. décimale : 551.48 Hydrologie : Résumé : A three dimensional digital model ground water flow was constructed to represent the dipping anisotropic beds of the Tesuque aquifer system underlying the Projoaque river basin and vicinity, New Mexico. The description of the prototype is simple enough to flow a mathematical simulation. This section of the report describes the analogy between the prototype and the model. The description is devided into three subsections : structure aquifer characteristics, and boundaries. In each instance a description of the prototype is followed by a description of the analogy used in the digital model. Note de contenu : A three dimensional digital model ground water flow was constructed to represent the dipping anisotropic beds of the Tesuque aquifer system underlying the Projoaque river basin and vicinity, New Mexico. The description of the prototype is simple enough to flow a mathematical simulation. This section of the report describes the analogy between the prototype and the model. The description is devided into three subsections : structure aquifer characteristics, and boundaries. In each instance a description of the prototype is followed by a description of the analogy used in the digital model. Réservation
Réserver ce document
Exemplaires(8)
Code-barres Cote Support Localisation Section Disponibilité CI03B101.77778 CI-05101 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B101.77777 CI-05101 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B101.77776 CI-05101 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B101.77775 CI-05101 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B101.77774 CI-05101 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B101.77773 CI-05101 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B101.77772 CI-05101 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B101.77771 CI-05101 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible U.S. Geological Survey Water Supply, 2240. Estimation of nonpoint source loadings of phosphorus for lakes in the Puget Sound Region, Washington / Gilliom, R. J.
Titre de série : U.S. Geological Survey Water Supply, 2240 Titre : Estimation of nonpoint source loadings of phosphorus for lakes in the Puget Sound Region, Washington Type de document : texte imprimé Auteurs : Gilliom, R. J. Mention d'édition : U. S. Geological Survey Editeur : U. S. Geological Survey Année de publication : 1983 ISBN/ISSN/EAN : CI-05097 Note générale : Control eutrophication of lakes in watersheds undergoing development is facilitated by estimates of the amounts of phosphorus (P) that reach the lakes from areas under various types of land use. Using a mass-balance model, the author calculated P loadings from present day P concentrations measured in lake water and from other easily measured physical characteristics in a total of 28 lakes in drainage basins that contain only forest andresidential land. The loadings from background sources to each of the lakes wera estimated by methods developed in a previous study. Differences between estimated present-day P loadings and loadings from background sources were attributed to changes in land use. Langues : Anglais (eng) Mots-clés : PRECIPITATIONS Qualité de l'eau Agriculture Phosphore Hydrogéologie Hydrochimie Index. décimale : 551.57 Hydrométéorologie : brouillard, nuages, précipitations Résumé : Control eutrophication of lakes in watersheds undergoing development is facilitated by estimates of the amounts of phosphorus (P) that reach the lakes from areas under various types of land use. Using a mass-balance model, the author calculated P loadings from present day P concentrations measured in lake water and from other easily measured physical characteristics in a total of 28 lakes in drainage basins that contain only forest andresidential land. The loadings from background sources to each of the lakes wera estimated by methods developed in a previous study. Differences between estimated present-day P loadings and loadings from background sources were attributed to changes in land use. Note de contenu : Control eutrophication of lakes in watersheds undergoing development is facilitated by estimates of the amounts of phosphorus (P) that reach the lakes from areas under various types of land use. Using a mass-balance model, the author calculated P loadings from present day P concentrations measured in lake water and from other easily measured physical characteristics in a total of 28 lakes in drainage basins that contain only forest andresidential land. The loadings from background sources to each of the lakes wera estimated by methods developed in a previous study. Differences between estimated present-day P loadings and loadings from background sources were attributed to changes in land use. U.S. Geological Survey Water Supply, 2240. Estimation of nonpoint source loadings of phosphorus for lakes in the Puget Sound Region, Washington [texte imprimé] / Gilliom, R. J. . - U. S. Geological Survey . - U. S. Geological Survey, 1983.
ISSN : CI-05097
Control eutrophication of lakes in watersheds undergoing development is facilitated by estimates of the amounts of phosphorus (P) that reach the lakes from areas under various types of land use. Using a mass-balance model, the author calculated P loadings from present day P concentrations measured in lake water and from other easily measured physical characteristics in a total of 28 lakes in drainage basins that contain only forest andresidential land. The loadings from background sources to each of the lakes wera estimated by methods developed in a previous study. Differences between estimated present-day P loadings and loadings from background sources were attributed to changes in land use.
Langues : Anglais (eng)
Mots-clés : PRECIPITATIONS Qualité de l'eau Agriculture Phosphore Hydrogéologie Hydrochimie Index. décimale : 551.57 Hydrométéorologie : brouillard, nuages, précipitations Résumé : Control eutrophication of lakes in watersheds undergoing development is facilitated by estimates of the amounts of phosphorus (P) that reach the lakes from areas under various types of land use. Using a mass-balance model, the author calculated P loadings from present day P concentrations measured in lake water and from other easily measured physical characteristics in a total of 28 lakes in drainage basins that contain only forest andresidential land. The loadings from background sources to each of the lakes wera estimated by methods developed in a previous study. Differences between estimated present-day P loadings and loadings from background sources were attributed to changes in land use. Note de contenu : Control eutrophication of lakes in watersheds undergoing development is facilitated by estimates of the amounts of phosphorus (P) that reach the lakes from areas under various types of land use. Using a mass-balance model, the author calculated P loadings from present day P concentrations measured in lake water and from other easily measured physical characteristics in a total of 28 lakes in drainage basins that contain only forest andresidential land. The loadings from background sources to each of the lakes wera estimated by methods developed in a previous study. Differences between estimated present-day P loadings and loadings from background sources were attributed to changes in land use. Réservation
Réserver ce document
Exemplaires(8)
Code-barres Cote Support Localisation Section Disponibilité CI03B097.87218 CI-05097 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B097.87215 CI-05097 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B097.87217 CI-05097 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B097.87216 CI-05097 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B097.87214 CI-05097 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B097.87213 CI-05097 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B097.87212 CI-05097 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible CI03B097.87211 CI-05097 Monographie Bibliothèque CDI-Ouaga Fond documentaire Disponible U.S. Geological Survey Water Supply paper, 2178. Design of surface water data networks for regional in formation / Moss, M. E.
PermalinkU.S. Geological Survey Water Supply paper, 2183. Hydrogeology and resultats of injection tests at waste injection test sites in Pinellas County, Florida / Hickey, J. J.
PermalinkU.S. Geological Survey Water Supply paper, 2191. Hydrologic conditions at the Idaho National Engineering Laboratory, Idaho - Emphasis : 1977 - 1978 / Bamadough, J. T.
PermalinkU.S. Geological Survey Water Supply paper, 2192. Appearance and water quality of turbidity plumes produced by dredging in Tampa Bay, Florida / Goodwin, C. R.
PermalinkU.S. Geological Survey Water Supply paper, 2193. Streamflow characteristics related to channel geometry of streams in Western United States / Hedman, E. K.
PermalinkU.S. Geological Survey Water Supply paper, 2196-B. River quality assessment of the Apalachicola river basin, Florida : production and decomposition of forest litter fall on the Apalachicola river flood plain, Florida - Chapter B / Elder, J. F.
PermalinkU. S. Geological Survey Water Supply paper, 2196-D. Hydrology and ecology of the Apalachicola river, Florida : a summary of the river quality assessment - Chapter D / Elder, J. F.
PermalinkU.S. Geological Survey Water Supply paper, 2197. Ground water monitoring at Santa Barbara, California : Phase 2 - Effects of pumping on water levels and on water quality in the Santa Barbara ground water basin / Martin, P.
PermalinkU.S. Geological Survey Water Supply paper, 2200. Analysis and computer simulation of stream-aquifer hydrology, Arkansas River Valley, Soutwestern Kansas / Barker, R. A.
PermalinkU.S. Geological Survey Water Supply paper, 2203. Investigation of the flooding in the Tug Fork Basin of Kentucky Virginia and West Virginia / Hirsch, R. M.
Permalink