Search Results - "Sampaio, Everardo Valadares de Sá Barreto"

Grazing reduces plant species diversity of Caatinga dry forests in northeastern Brazil by Schulz, Katharina, Guschal, Maike, Kowarik, Ingo, Silva de Almeida‐Cortez, Jarcilene, Valadares de Sá Barreto Sampaio, Everardo, Cierjacks, Arne, Fraser, Lauchlan

“…Questions In many arid and semi‐arid regions of the world, livestock husbandry is the main land use and grazing is one of the main challenges for biodiversity…”
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Salvaguardas da Redd: proteção para as comunidades da Caatinga em Pernambuco, Brasil by Reis Neto, Afonso Feitosa, Araújo, Maria do Socorro Bezerra de, Sampaio, Everardo Valadares de Sá Barreto

“…A Redução do Desmatamento e da Degradação Florestal (Redd) é um instrumento jurídico criado pelas Nações Unidas para combater o desmatamento dos remanescentes…”
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ARBUSCULAR MYCORRHIZAL FUNGI IN SUCCESSIONAL STAGES OF CAATINGA IN THE SEMI-ARID REGION OF BRAZIL by da Silva Sousa, Carla, Cezar Menezes, Rômulo Simões, de Sá Barreto Sampaio, Everardo Valadares, de Sousa Lima, Francisco, Costa Maia, Leonor, Oehl, Fritz

“…Caatinga is an exclusively Brazilian biome with areas in accentuated process of desertification. Arbuscular mycorrhizal fungi (AMF) act in plant succession by…”
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Caatinga Revisited : Ecology and Conservation of an Important Seasonal Dry Forest by Maria Xavier Freire, Eliza, Sampaio, Everardo Valadares de Sá Barreto, Las-Casas, Flor Maria Guedes, de Moura, Geraldo Jorge Barbosa, Pereira, Glauco Alves, de Melo, Joabe Gomes, Alves Ramos, Marcelo, Rodal, Maria Jesus Nogueira, Schiel, Nicola, de Lyra-Neves, Rachel Maria, Alves, Romulo Romeu da Nobrega, de Azevedo-Júnior, Severino Mendes, Telino Júnior, Wallace Rodrigues, Severi, William, Albuquerque, Ulysses Paulino de, Ferraz, Elba Maria Nogueira, Bezerra, Bruna Martins, Souto, Antonio, de Lima Araújo, Elcida, El-Deir, Ana Carla Asfora, de Lima, André Luiz Alves

“…Besides its extreme climate conditions, the Caatinga (a type of tropical seasonal forest) hosts an impressive faunal and floristic biodiversity. In the last 50…”
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Bioethanol production from cactus cladode biomass: considerations of harvesting time, dry matter concentrations, and enzymatic hydrolysis by Alencar, Bárbara Ribeiro Alves, Medeiros, Nilson, da Silva, Carolaine Larissa Lira, Torres, Aldo, Dutra, Emmanuel Damilano, de Sá Barreto Sampaio, Everardo Valadares, Menezes, Rômulo Simões Cezar, Morais Júnior, Marcos Antônio

“…Cactus pear biomass has the potential for bioethanol production in dry regions. However, its low solids concentration and pH variations may hinder the process…”
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Accumulation and apparent recovery of N, P and K after the incorporation of gliricidia and manure in intercropping during the cultivation of corn–cowpea–cotton by da Silva Garrido, Marlon, Menezes, Rômulo Simões Cezar, de Sá Barreto Sampaio, Everardo Valadares, Marques, Tereza Raquel Rodrigues, Olszevski, Nelci

“…Fertilization with manure is widely adopted by farmers in the semiarid region of northeastern Brazil, although the quantity of available manure is limited…”
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Soil CO2 Efflux Measurements by Alkali Absorption and Infrared Gas Analyzer in the Brazilian Semiarid Region by Carlas Renata Prissila Costa Ferreira, Antonio Celso Dantas Antonino, Everardo Valadares de Sá Barreto Sampaio, Karina Guedes Correia, José Romualdo de Sousa Lima, Willames de Albuquerque Soares, Rômulo Simões Cezar Menezes

“…ABSTRACT The CO2 emission from the soil surface, commonly referred to as soil CO2 efflux (ECO2) or soil respiration, is the sum of processes that include root…”
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Allometric Equations to Estimate Sugarcane Aboveground Biomass by de Carvalho, Eric Xavier, Menezes, Rômulo Simões Cezar, de Sá Barreto Sampaio, Everardo Valadares, Neto, Djalma Elzébio Simões, Tabosa, José Nildo, de Oliveira, Luiz Rodrigues, Simões, Aluizio Low, Sales, Aldo Torres

“…Sugarcane harvest implies in the movement of very large amounts of biomass and, therefore, demands careful planning of logistics. Accurate pre-harvest…”
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An Index of Susceptibility to Drought (ISD) for the Semiarid Brazilian Northeast by Neves, Josemir Araujo, Melo, Silvio de Barros, Sampaio, Everardo Valadares de Sá Barreto

“…Abstract This work presents the development of a composite Index of Susceptibility to Drought (ISD) for semiarid Brazilian Northeast that considers…”
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Do agrosystems change soil carbon and nutrient stocks in a semiarid environment? by Santana, Mônica da Silva, Andrade, Eunice Maia de, Sampaio, Everardo Valadares de Sá Barreto, Ferreira, Tiago Osório, Salviano, Alessandra Monteiro, Silva, Davi José da, Cunha, Tony Jarbas Ferreira, Giongo, Vanderlise

“…Ecological processes, such as net primary production, root system development, organic matter mineralization, nutrient removal and fertilizer application…”
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Moisture, temperature and respiration of two soil classes under pasture and tropical dry forest in the semiarid Brazilian region by Lima, José Romualdo de Sousa, Souza, Rodolfo Marcondes Silva, Sampaio, Everardo Valadares de Sá Barreto, Antonino, Antônio Celso Dantas, Souza, Eduardo Soares de, Medeiros, Érika Valente de, Duda, Gustavo Pereira, Ferreira, Carlas Renata Prissila Costa, Menezes, Rômulo Simões César, Hammecker, Claude

“…Soil respiration (Rs), or soil CO2 efflux, is the largest carbon flux from ecosystems to the atmosphere; it is an order of magnitude greater than that released…”
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Economic and energetic analysis of cactus pear biomass production systems with increasing levels of technological intensity by da Silva, Jéssica Bárbara, Santos Júnior, Edvaldo Pereira, Siqueira e Silva, Servúlo Mercier, Maciel, Vinícius Gonçalves, Sales, Aldo Torres, Sampaio, Everardo Valadares de Sá Barreto, Rotela Junior, Paulo, Coelho Junior, Luiz Moreira, Dubeux Jr, José Carlos B., Menezes, Rômulo Simões Cezar, Dutra, Emmanuel Damilano

“…The forecasted expansion of arid and semi-arid lands worldwide due to climate changes requires alternatives for economically viable agricultural cropping…”
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Efeito de fungos micorrízicos arbusculares no crescimento de mudas de Leucaena leucocephala (Lam.) de Wit. em solos de caatinga sob impacto de mineração de cobre by Lins, Cláudia Elizabete de Lima(Universidade Federal de Pernambuco Departamento de Micologia), Maia, Leonor Costa(Universidade Federal de Pernambuco Departamento de Micologia), Cavalcante, Uided Maaze Tiburcio(Universidade Federal de Pernambuco Departamento de Micologia), Sampaio, Everardo Valadares de Sá Barreto(Universidade Federal de Pernambuco Departamento de Energia Nuclear)

“…Os fungos micorrízicos arbusculares (FMA) podem conferir às plantas maior tolerância a metais pesados e têm sido indicados para uso em processos de…”
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Efeito da Gliricidia sepium sobre nutrientes do solo, microclima e produtividade do milho em sistema agroflorestal no Agreste Paraibano by Marin, Aldrin Martin Pérez(Universidade Federal de Pernambuco Departamento de Energia Nuclear ,CNPq), Menezes, Rômulo Simões César(UFPE Departamento de Energia Nuclear), Silva, Emanuel Dias(CNPq ,Universidade Federal da Paraíba), Sampaio, Everardo Valadares de Sá Barreto(CNPq ,UFPE Departamento de Energia Nuclear)

“…Gliricidia sepium é uma leguminosa arbórea que tem sido utilizada em sistemas em aléias no semi-árido nordestino por apresentar bom desenvolvimento em…”
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Adubação orgânica da batata com esterco e, ou, Crotalaria juncea: I - produtividade vegetal e estoque de nutrientes no solo em longo prazo by Silva, Tácio Oliveira da(Universidade Federal de Lavras Departamento de Ciência do Solo Programa de Solos e Nutrição de Plantas), Menezes, Rômulo Simões Cezar(Universidade Federal de Pernambuco Departamento de Energia Nuclear), Tiessen, Holm(Universität Göttingen Instituto de Agricultura Tropical), Sampaio, Everardo Valadares de Sá Barreto(UFPE Departamento de Energia Nuclear), Salcedo, Ignácio Hernan(UFPE Departamento de Energia Nuclear), Silveira, Luciano Marcal da(Centro Agroecológico São Miguel Assessoria e Serviços a Projetos em Agricultura Alternativa)

“…No Agreste paraibano, a batata (Solanum tuberosum L.) é importante cultura comercial, embora seja limitada pela variabilidade e escassez de chuvas e pela baixa…”
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Improving the generalization error and transparency of regression models to estimate soil organic carbon using soil reflectance data by dos Santos, Erli Pinto, Moreira, Michel Castro, Fernandes-Filho, Elpídio Inácio, Demattê, José Alexandre Melo, Santos, Uemeson José dos, da Silva, Demetrius David, Cruz, Renata Ranielly Pedroza, Moura-Bueno, Jean Michel, Santos, Isabel Caligiorne, Sampaio, Everardo Valadares de Sá Barreto

“…Despite the success of using soil spectroscopy in studies to predict soil attributes, like soil organic carbon (SOC), recent work has revealed several…”
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Production, storage and costs of inoculum of arbuscular mycorrhizal fungi (AMF) by de Santana, Angelo Souto, Cavalcante, Uided Maaze Tiburcio, de Sa Barreto Sampaio, Everardo Valadares, Costa Maia, Leonor

“…Arbuscular mycorrhizal fungi (AMF) inoculation may contribute to the development of sustainable agriculture. Inoculation requires production and storage of…”
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Arbuscular mycorrhizal fungi within agroforestry and traditional land use systems in semi-arid Northeast Brazil by Sousa, Carla da Silva, Menezes, Rômulo Simões Cezar, Sampaio, Everardo Valadares de Sá Barreto, Lima, Francisco de Sousa, Oehl, Fritz, Maia, Leonor Costa

“…The diversity of arbuscular mycorrhizal fungi (AMF) can be a critical factor in enhancing both the productivity and the diversity of plants in ecosystems, and…”
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Mudanças florísticas e estruturais, após cinco anos, em uma comunidade de Caatinga no estado de Pernambuco, Brasil by Cavalcanti, Airton de Deus Cysneiros(Universidade Federal Rural de Pernambuco Departamento de Biologia), Rodal, Maria Jesus Nogueira(Universidade Federal Rural de Pernambuco Departamento de Biologia), Sampaio, Everardo Valadares de Sá Barreto(Universidade Federal de Pernambuco Centro de Tecnologia Departamento de Energia Nuclear), Costa, Keila Cristina Carvalho(Universidade Federal Rural de Pernambuco Departamento de Biologia)

“…A flora e a estrutura da vegetação determinadas em um hectare de Caatinga, em 2001, foram comparadas com as de 2006. O número de espécies passou de 27 para 28,…”
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Occurrence of arbuscular mycorrhizal fungi after organic fertilization in maize, cowpea and cotton intercropping systems by Sousa, Carla Silva, Menezes, Rômulo Simões Cezar, Sampaio, Everardo Valadares Sá Barretto, Oehl, Fritz, Maia, Leonor Costa, Garrido, Marlon Da Silva, Lima, Francisco Sousa

“…The effect of organic manure on the community of mycorrhizal fungi (AMF) was evaluated in maize, cowpea and cotton intercropping systems in a semi-arid region…”
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