Degraded Lands
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Seed germination and dormancy break in Eragrostis polytricha, a native Brazilian grass species with potential for recovery of degraded lands
ABSTRACT Ferruginous Rocky Outcrops have high levels of species richness and endemism, but have been threatened by several anthropic actions, especially mining. Eragrostis polytricha, a common grass species in the vegetation of these outcrops, has shown promising features for use in the recovery of mining areas. However, in order to fully understand the spec
Acta Bot. Bras.. Publicado em: 2020-09
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2. SHADING LEVELS AND PLANT GROWTH REGULATOR FOR FORMATION OF SCHIZOLOBIUM AMAZONICUM COMPACT SEEDLINGS
ABSTRACT Paricá (Schizolobium amazonicum) can be used for rehabilitation of degraded lands, timber manufacturing markets. However, for its planting, high-quality seedlings should be used. Thus, this study aimed to evaluate the effect of different types of paclobutrazol (PBZ) application and two shading levels on high-quality seedling production. As there wa
Eng. Agríc.. Publicado em: 04/11/2019
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3. Influence of arbuscular mycorrhizal fungi inoculum produced on-farm and phosphorus on growth and nutrition of native woody plant species from Brazil
Mycorrhizal fungus inoculum produced on-farm can be used during production of woody plant seedlings to reduce costs associated with purchase of commercial inoculant and fertilization. This study aimed to test the efficiency of a mycorrhizal inoculant produced on-farm to promote growth and nutrition of woody species in combination with different levels of pho
Acta Bot. Bras.. Publicado em: 2016-03
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4. Avaliação da aptidão agrícola de solos do projeto de Assentamento Alegria, município de Pium, Tocantins.
ABSTRACT: The Alegria Rural Settlement Plan is a result of Land Reform politics of the INCRA, located in the town of Pium, Tocantins, in order to use unproductive lands for rural settlement development. The soil of the Alegria PA is generally shallow or very shallow (Haplic Inceptisols, Quartzipsamments Entisols), with low fertility and degraded by the manag
Planaltina. Publicado em: 2011
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5. Organic carbon pools in a luvisol under agroforestry and conventional farming systems in the semi-arid region of Ceará, Brazil.
Many environmental benefits have been attributed to agroforestry systems in various ecosystems around the world. However, there is a limited amount of information to evaluate this agricultural system in the semi-arid region, specifically in the region of Ceara´, Brazil. The objective of this work was to evaluate five agricultural (four agroforestry and one
Agroforestry Systems. Publicado em: 2011
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6. Atributos químicos relacionados ao processo de sulfurização em solos construídos após mineração de carvão / Chemical attributes of constructed soils after surface coal mining related to sulphurization process
A mineração de carvão a céu aberto envolve a remoção superficial do solo e de camadas geológicas, os quais devem ser repostos visando à reabilitação das áreas mineradas. Essa obra expõe o carvão às condições oxidativas do ar e altera as características originais do solo e da paisagem. Como consequência, o processo de sulfurização pode ser
Publicado em: 2011
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7. Tipologia e fragmentação das terras úmidas do cerrado na alta bacia do Rio Araguaia, estado de Goiás / Typology and fragmentation wetland savanna int he high Araguia River basin, Goiás state
The aim of this research is to call the attention to the humid areas preservation for they are natural habitat with special dynamic and genesis and that they have been damaged by the gradual development of the use of the soil in the latest year. The upper basin of Araguaia river were chosen as an area study to follow systematically the development of Cerrado
Publicado em: 2010
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8. Soil properties for different uses in irrigated perimeter of Sertão in Pernambuco State. / Atributos do solo em função dos diferentes usos em perímetro irrigado do Sertão de Pernambuco
The semiarid Northeast Brazil, represented by the Caatinga biome is characterized as an environment of low water availability and shallow soils, which require regional scientific community, further studies directed at understanding and managing these resources, for their preservation in a sustainable way. Thus, this study aims to evaluate the chemical, physi
Publicado em: 2010
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9. Biocombustíveis, controvérsia agrícola na economia do petróleo: o caso do etanol no Cerrado / .
In the controversial debate about the impacts of biofuels, Brazil has been trying to sustain a supposed immunity. The argument rests on the extraordinary abundance of degraded grazing land, sufficiently capable of accommodating the expansion of sugarcane without threatening food security or compromising the integrity of ecosystems. Although the enormous adva
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/09/2009
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10. Arrendamento e parceria na agricultura brasileira : condicionantes, contratos e funcionamento / Leasing and sharecroppoing in brazilian agrculture : factors, contracts and functions
The central objective of this thesis is to analyze leasing and sharecropping relationships in the Brazilian rural areas in the last two decades. The presence of leasing and sharecropping in every state of the country with great heterogeneity in format, production results and probably in won of efficiency was observed. The hypothesis that guided this research
Publicado em: 2009
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11. ENVIRONMENTAL PLANNING OF CITY OF BARRA BONITA, SC, IN THE PERSPECTIVE OF GEOGRAPHIC INFORMATION TECHNOLOGIES / PLANEJAMENTO AMBIENTAL DO MUNICÍPIO DE BARRA BONITA, SC, NA PERSPECTIVA DAS TECNOLOGIAS DE INFORMAÇÃO GEOGRÁFICA
Human actions, in their diversity, deeply affect the environment, making changes which can reflect a state of environmental degradation. With the purpose to contribute with analysis about local spaces, environmental planning in urban and rural areas becomes an important tool, allowing to get a better knowledge about physical spaces and applied human actions.
Publicado em: 2009
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12. Avaliação de fungos micorrízicos arbusculares e ectomicorrízicos para seleção de simbioses eficientes com leguminosas arbóreas do gênero Acacia. / Arbuscular mycorrhizal and ectomycorrhizal fungi evaluation for selection of efficient symbiosis for leguminous trees of Acacia genus.
The present research aimed the selection of FMA and isolate of fECTOs of high symbiotic efficiency for Acacia mangium, Acacia holosericea, and Acacia auriculiformis with the purpose of evaluating the best combination of inoculation among the different types of mycorrhizae. The experiments were carried on at Embrapa Agrobiologias greenhouse, in Seropédica/RJ
Publicado em: 2008