Degraded Land
Mostrando 1-12 de 66 artigos, teses e dissertações.
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1. Functional patterns of tree communities in natural Araucaria forests and old monoculture conifer plantations
ABSTRACT A functional perspective of tree communities is helpful for understanding forest dynamics, especially vegetation recovery after other land uses. Knowledge about ecological filters and survival strategies of trees are also important for the restoration of degraded areas. This study aimed to evaluate the functional composition and structure of adult a
Acta Bot. Bras.. Publicado em: 25/11/2019
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2. Mudança dos elementos meteorológicos em função da degradação da floresta urbana
Resumo O estudo das interações biosfera-atmosfera permite descrever e caracterizar os principais processos de transferência de energia e massa, relacionados às particularidades da vegetação. Assim, as interações que ocorrem em uma floresta podem sofrer impactos significativos em virtude de mudanças do clima ou no uso do solo. Deste modo, o objetivo
Ciênc. Florest.. Publicado em: 30/09/2019
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3. Does Crop-Livestock-Forest Systems Contribute to Soil Quality in Brazilian Savannas?
ABSTRACT In this paper we discuss the impact on conversion degraded pasture areas into an integrated crop, livestock and forest system (ICLFS). We collected 30 soil samples at 0-0.1 m depth in five agroforestry systems, degraded pasture and native areas along Brazilian Cerrado biome. We analyzed the influence of chemical variables on microbial biomass carbon
Floresta Ambient.. Publicado em: 01/07/2019
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4. Evolução Espaço-Temporal do Risco de Degradação da Cobertura Vegetal de Petrolina-PE
Resumo A disponibilidade de imagens de satélites em diferentes resoluções espacial, temporal, radiométrica e espectral estão sendo empregadas para monitorar grandes áreas dos diversos biomas existentes no mundo. O monitoramento por imagens orbitais possibilita detectar, analisar e inferir sobre alterações da superfície da Terra provocadas por proces
Rev. bras. meteorol.. Publicado em: 30/05/2019
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5. Mapping and characterization of intensity in land use by pasture using remote sensing
RESUMO A demanda atual por alimentos tem sido atendida por meio da exploração das reservas naturais. O Brasil apresenta 26% da sua extensão ocupada por usos agropecuários, sendo 62% desses, pastagens. Pastagens degradadas apresentam maior intensidade de uso da terra do que pastagens bem manejadas, levando à maior degradação do meio ambiente. Os sistem
Rev. bras. eng. agríc. ambient.. Publicado em: 06/05/2019
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6. Physical, Chemical, and Microbiological Properties of Soil under Different Plant Covers in the Seridó Desertification Region in the Brazilian Semiarid
ABSTRACT The Seridó Desertification Region is a result of inadequate management of the native Caatinga vegetation, which generated degraded areas with little or no capacity for plant production. The area has experienced a succession of different land uses, but little is known about the impact of these changes. The present study tested the hypothesis that th
Rev. Bras. Ciênc. Solo. Publicado em: 28/03/2019
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7. Community Succession in an Urban Novel Forest after Four Decades of Regeneration
ABSTRACT This study aimed to analyse the tree community of an urban forest with 40 years of natural regeneration after abandonment of the degraded land. We hypothesized that after four decades of forest succession, the diversity, structure and functional aspects of the community would be similar to other secondary surrounding forests. We established ten plo
Floresta Ambient.. Publicado em: 13/09/2018
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8. The Quest for land at Piranema sand cluster
Abstract The Piranema Sand Cluster, located between the Seropédica and Itaguaí counties of Rio de Janeiro Metropolitan Region, is responsible for 65% of the sand used in construction works of the region and is the home of approximately 47 small mining companies. The construction works in progress in this area make this mining district a critical success fa
REM, Int. Eng. J.. Publicado em: 2018-07
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9. Quantity and quality of soil organic matter as a sustainability index under different land uses in Eastern Amazon
ABSTRACT: Soil organic matter (SOM), which influences chemical, physical and biological soil attributes, is the main form of C found in the soil which can also be used as a soil sustainability index. The aim of this study was to use the quantity and quality of SOM as an indicator to determine the sustainability of different land uses (native vegetation, seco
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-05
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10. Where is sugarcane cropping expanding in the brazilian cerrado, and why? A case study
ABSTRACT Sugarcane growing area in Brazil sharply expanded between 2000 and 2010 due to the increasing world demand for sugar and ethanol. Since this expansion of sugarcane is said to occur in areas covered by degraded pastures, it is likely not threatening the environment or food production. In order to verify this assumption, we investigate at farm and fie
An. Acad. Bras. Ciênc.. Publicado em: 14/08/2017
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11. Organic Carbon and Physical Properties in Sandy Soil after Conversion from Degraded Pasture to Eucalyptus in the Brazilian Cerrado
ABSTRACT Soil is currently seen as the most relevant carbon sink and the most effective carbon stabilizer. In contrast, agriculture is the second largest C emitter, after burning of fossil fuels. This organic carbon (OC) introduced into the soil, mainly via organic matter (OM), is essential for several soil properties and plays an extremely important role in
Rev. Bras. Ciênc. Solo. Publicado em: 22/06/2017
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12. Litterfall and Nutrient Input in a Degraded Area
ABSTRACT This study aimed to test the effects of fertilization with organic compost from industrial production of pulp on the litterfall and nutrient input of monospecific plantations in a loan area. The treatments consisted of three doses of the organic compost D10, D15 and D20 (10, 15 and 20 Mg ha-1, respectively), mineral conventional fertilization (DAM)
Floresta Ambient.. Publicado em: 27/04/2017