Savanna
Mostrando 25-36 de 422 artigos, teses e dissertações.
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25. Tolerance of Eucalyptus and Pinus seedlings to exchangeable Aluminium
ABSTRACT: Tolerance to acid soil is an important trait of Eucalyptus and Pinus species introduced into commercial forestry plantations in tropical ecosystems. The objective of this study was to evaluate the effect of the exchangeable Al on growth of the seedlings of two species and one hybrid of Eucalyptus and two species of Pinus. We also wanted to identify
Sci. agric. (Piracicaba, Braz.). Publicado em: 30/05/2019
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26. Levantamento de plantas de baixa inflamabilidade em áreas queimadas de Cerrado no Distrito Federal e análise das suas propriedades físicas
Resumo Os incêndios florestais se propagam principalmente através do material combustível superficial. Portanto, plantas de baixa inflamabilidade podem ser usadas para proteção contra incêndios, pois dificultam a propagação do fogo. Neste sentido, o objetivo deste trabalho foi realizar um levantamento de plantas de baixa inflamabilidade no cerrado do
Ciênc. Florest.. Publicado em: 30/05/2019
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27. Structural differences in mammal assemblages between savanna ecosystems of the Colombian Llanos
Abstract The Colombian Orinoquia region is characterized by a high diversity of mammals, which is associated with complex ecosystems that include large extensions of Neotropical savannas (known locally as “Llanos Orientales”). Despite accelerated anthropogenic transformations in savanna ecosystems, the knowledge to design effective conservation strategie
Pap. Avulsos Zool.. Publicado em: 20/05/2019
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28. Growth rates and yields of cassava at different planting dates in a tropical savanna climate
ABSTRACT: Details on growth and yield for cassava planted on different dates are useful for determining suitable genotypes for particular growing seasons. Our aim was to study growth and yield of cassava planted on different dates. Four cassava genotypes (Kasetsart 50, Rayong 9, Rayong 11 and CMR38-125-77) were evaluated using a randomized complete block des
Sci. agric. (Piracicaba, Braz.). Publicado em: 20/05/2019
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29. Características e potencialidades dos frutos do Cerrado na indústria de alimentos
Resumo O Cerrado é o segundo maior bioma brasileiro e apresenta grande diversidade de frutos que possuem alto valor nutricional, sabor e aroma característicos, compostos bioativos com propriedades antioxidantes e apelo saudável. O mercado consumidor visa a produtos com apelo natural e funcional, e, pelo fato de haver grandes perdas pós-colheita dos fruto
Braz. J. Food Technol.. Publicado em: 16/05/2019
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30. Edaphic Filters and Plant Colonization in a Mine Revegetated with Sewage Sludge
ABSTRACT We evaluated the recruitment of plant species and their relation with edaphic attributes in a mine revegetated with sewage sludge in the Brazilian Federal District. Plant species in the revegetated mine and in remaining portions of Cerrado (savanna) within the mined landscape were sampled and identified. Then, samples of revegetated substrate and so
Floresta Ambient.. Publicado em: 02/05/2019
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31. Riparian vegetation structure and soil variables in Pandeiros river, Brazil
Resumo Este estudo analisou as variações florísticas, estruturais e suas relações com variáveis do solo em dois trechos de vegetação ripária em uma região ecotonal entre savana e zonas semi-áridas. Propomos a hipótese de que, apesar da proximidade entre as áreas amostradas, as condições do solo são distintas e levam a mudanças na estrutura e
Rodriguésia. Publicado em: 18/03/2019
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32. Vegetative propagation of pequi (souari nut) by cutting
RESUMO: O pequizeiro é propagado predominantemente por via seminal apresentando germinação desuniforme e reduzida. A crescente demanda por frutos e mudas para reflorestamento indicam a necessidade de novas estratégias para a propagação desta espécie, minimizando os impactos do extrativismo predatório. Objetivou-se com este estudo auxiliar no desenvo
Cienc. Rural. Publicado em: 28/02/2019
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33. Sugarcane Root Development and Yield under Different Soil Tillage Practices
ABSTRACT New strategies for sugarcane production have been very important since the incorporation of ethanol in the Brazilian energy mix in the early 1970s. Prior to planting sugarcane, the soil is prepared, and this process can affect root development and, consequently, sugarcane production. This study was conducted in an area of sugarcane crop renewal in t
Rev. Bras. Ciênc. Solo. Publicado em: 14/02/2019
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34. Losses of soil, water, organic carbon and nutrients caused by water erosion in different crops and natural savannah in the northern Amazon
Resumo Atualmente no Brasil a principal forma de erosão é causada pelo impacto das gotas de chuva na superfície do solo, desencadeando o processo de erosão hídrica e causando sérios danos às áreas agrícolas. Este trabalho foi realizado com o objetivo de avaliar perdas de solo, água, nutrientes e carbono orgânico em diferentes culturas, solo descob
Rev. Ambient. Água. Publicado em: 07/01/2019
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35. Inceptisol Physicochemical Attributes in the Caatinga Biome Agroforestry Systems
ABSTRACT We evaluated two areas of sustainable management within the Caatinga and one area of conventional agricultural cultivation to compare their physicochemical attributes with those of native forest. The management strategies were as follows: (1) thinning of savanna; (2) thinning of strips; (3) conventional tillage with plowing and harrowing; and (4) n
Floresta Ambient.. Publicado em: 26/07/2018
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36. Occurrence of Yeast Species in Soils under Native and Modified Vegetation in an Iron Mining Area
ABSTRACT Soils of the Quadrilátero Ferrífero are rich in mineral resources, especially gold and iron. Soil management and mining activities greatly impact soil biology. However, studies addressed to the diversity of microorganisms and their ecological role in the recovery of these areas are scarce. This study aimed to assess the yeast occurrence in soils w
Rev. Bras. Ciênc. Solo. Publicado em: 26/07/2018