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Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
09/06/2015 |
Data da última atualização: |
09/06/2015 |
Autoria: |
GOUVEIA, R. G. L. de; GALVANIN, E. A. dos S.; NEVES, S. M. A. da S.; KREITLOW, J. P.; SANTOS, A. L. dos. |
Título: |
Analysis of landscape quality in the queima-pé river basin, Mato Grosso. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Floresta, Curitiba, v. 45, n. 1, p. 21-30, jan./mar. 2015. |
Idioma: |
Inglês |
Conteúdo: |
In thist study, land use and landscape quality were analyzed in the Queima-Pé river basin, Mato Grosso, Brazil. Land use and landscape quality were identified based on 3 m of spatial resolution images from GeoEye. For land use, manual segmentation and visual interpretation methods were used. Twelve map classes were identified and semi-perennial crops, temporary crops, pasture and native vegetation were the most significant ones. In terms of land use, the basin area contained 55.83% pasture, 26.06% crops, and 7.49% natural vegetation. Landscape analysis revealed that the study area contained 0.79% lower class, 87.80% medium-class, and 11.40% upper-class quality landscape. Through this analysis was determined predominance of the visual quality characterized as medium class, in the basin area. |
Palavras-Chave: |
Geotechnology. |
Thesaurus Nal: |
environment; land use. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01332naa a2200157 a 4500 001 2017236 005 2015-06-09 008 2015 bl uuuu u00u1 u #d 100 1 $aGOUVEIA, R. G. L. de; GALVANIN, E. A. dos S.; NEVES, S. M. A. da S.; KREITLOW, J. P.; SANTOS, A. L. dos 245 $aAnalysis of landscape quality in the queima-pé river basin, Mato Grosso. 260 $c2015 520 $aIn thist study, land use and landscape quality were analyzed in the Queima-Pé river basin, Mato Grosso, Brazil. Land use and landscape quality were identified based on 3 m of spatial resolution images from GeoEye. For land use, manual segmentation and visual interpretation methods were used. Twelve map classes were identified and semi-perennial crops, temporary crops, pasture and native vegetation were the most significant ones. In terms of land use, the basin area contained 55.83% pasture, 26.06% crops, and 7.49% natural vegetation. Landscape analysis revealed that the study area contained 0.79% lower class, 87.80% medium-class, and 11.40% upper-class quality landscape. Through this analysis was determined predominance of the visual quality characterized as medium class, in the basin area. 650 $aenvironment 650 $aland use 653 $aGeotechnology 773 $tFloresta, Curitiba$gv. 45, n. 1, p. 21-30, jan./mar. 2015.
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Embrapa Florestas (CNPF) |
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Registro Completo
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
15/01/1999 |
Data da última atualização: |
15/01/1999 |
Autoria: |
COUTO, W.; SANZONOWICS, C.; LEITE, G. G. |
Título: |
Effect of excess water in an oxisol on ammonium, nitrate, iron and manganese availability and nutrient uptake of two tropical forage species. |
Ano de publicação: |
1983 |
Fonte/Imprenta: |
Plant and Soil, The Hague, v.73, p.159-166, 1983. |
Idioma: |
Inglês |
Notas: |
C. Sanzonowicz. |
Conteúdo: |
A glasshouse experiment was condcted to determine how reduction conditions would affect plant nutrient availability and uptake in red-yellow latosol (Acrustox). Soil analysis showed that the most important change were a marked increase in extractable and in inhibition of nitrification. The grass andropogon (Andropongon gayanus Kunth var. bisquamulatus (Hoechst) Hack) and the legume stylo (Stylosanthes capitata (Vog) responded differently to reducing conditions. Andropogon showed low P, Ca, Mg Fe and Mn content in the shoots but an intense coating of oxidized iron was observed on the surface roots. Stylo plant, on the other hand, showed no iron deposition on the root surfaces a high iron content in the shoots. No decreased P, Ca or Mg content was observed in this case. Is was concluded tha in water saturated soil, reduction took place and plant performance was affected no only by restricted root development but by preventing P, Ca and Mg uptake in Andropogon and increasing Fe uptake stylo plants. It is suggested that restricted P, Ca and Mg uptake by Andropogen would be the result of iron deposition on root surfaces. |
Palavras-Chave: |
Ammonium; Latossolo vermelho-amarelo; Nitrate; Red-yellow latosol. |
Thesagro: |
Amônia; Andropogon Gayanus; Cerrado; Ferro; Manganês; Nitrato; Zinco. |
Thesaurus NAL: |
Ferralsols; iron; manganese; Stylosanthes capitata; zinc. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02073naa a2200349 a 4500 001 1544560 005 1999-01-15 008 1983 bl --- 0-- u #d 100 1 $aCOUTO, W. 245 $aEffect of excess water in an oxisol on ammonium, nitrate, iron and manganese availability and nutrient uptake of two tropical forage species. 260 $c1983 500 $aC. Sanzonowicz. 520 $aA glasshouse experiment was condcted to determine how reduction conditions would affect plant nutrient availability and uptake in red-yellow latosol (Acrustox). Soil analysis showed that the most important change were a marked increase in extractable and in inhibition of nitrification. The grass andropogon (Andropongon gayanus Kunth var. bisquamulatus (Hoechst) Hack) and the legume stylo (Stylosanthes capitata (Vog) responded differently to reducing conditions. Andropogon showed low P, Ca, Mg Fe and Mn content in the shoots but an intense coating of oxidized iron was observed on the surface roots. Stylo plant, on the other hand, showed no iron deposition on the root surfaces a high iron content in the shoots. No decreased P, Ca or Mg content was observed in this case. Is was concluded tha in water saturated soil, reduction took place and plant performance was affected no only by restricted root development but by preventing P, Ca and Mg uptake in Andropogon and increasing Fe uptake stylo plants. It is suggested that restricted P, Ca and Mg uptake by Andropogen would be the result of iron deposition on root surfaces. 650 $aFerralsols 650 $airon 650 $amanganese 650 $aStylosanthes capitata 650 $azinc 650 $aAmônia 650 $aAndropogon Gayanus 650 $aCerrado 650 $aFerro 650 $aManganês 650 $aNitrato 650 $aZinco 653 $aAmmonium 653 $aLatossolo vermelho-amarelo 653 $aNitrate 653 $aRed-yellow latosol 700 1 $aSANZONOWICS, C. 700 1 $aLEITE, G. G. 773 $tPlant and Soil, The Hague$gv.73, p.159-166, 1983.
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