Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 3
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
A Multicriteria Risk Analysis to Evaluate Impacts of Forest Management Alternatives on Forest Health in Europe Ecology and Society
Duncker, Philipp; Albert-Ludwigs-University Freiburg, Institute for Forest Growth;; Gardiner, Barry; Forest Research, Northern Research Station;; Grodzki, Wojciech; Forest Research Institute, Department of Forest Management in Mountain Regions;; Langstrom, Bo; The Swedish University of Agricultural Sciences, Department of Ecology;; Netherer, Sigrid; University of Natural Resources and Life Sciences, Department of Forest and Soil Sciences, Institute of Forest Entomology, Forest Pathology, and Forest Protection;; Nicoll, Bruce; Forest Research, Northern Research Station;; Orazio, Christophe; IEFC - EFI Atlantic;; Schelhaas, Mart-Jan; Centre for Ecosystem Studies, Alterra;; Tojic, Karl; Albert-Ludwigs-University Freiburg, Institute for Forest Growth;.
Due to climate change, forests are likely to face new hazards, which may require adaptation of our existing silvicultural practices. However, it is difficult to imagine a forest management approach that can simultaneously minimize all risks of damage. Multicriteria decision analysis (MCDA) has been developed to help decision makers choose between actions that require reaching a compromise among criteria of different weights. We adapted this method and produced a multicriteria risk analysis (MCRA) to compare the risk of damage associated with various forest management systems with a range of management intensity. The objective was to evaluate the effect of four forest management alternatives (FMAs) (i.e., close to nature, extensive management with combined...
Tipo: Peer-Reviewed Reports Palavras-chave: Abiotic; Biotic; Damage; Hazard; MCRA; Silviculture.
Ano: 2012
Imagem não selecionada

Imprime registro no formato completo
ABA regulation of post-germination desiccation tolerance in wheat cultivars contrasting in drought tolerance Anais da ABC (AABC)
KOUR,SATINDER; ZHAWAR,VIKRAMJIT K..
ABSTRACT Post-germination desiccation tolerance (DT) was studied in two wheat cultivars. Effect of pretreatment of abscisic acid (ABA)/ osmotic/ salt/ heat stress was also studied. One day (d)-old seedlings of wheat cultivars PBW 644 (drought tolerant) and PBW 343 (drought susceptible) were exposed to ABA/stress treatment for next 1 d, desiccated for 4 d and subsequently rehydrated for 4 d. Biomass, protein, water, protein carbonyls (oxidative toxicity) and nitric oxide (NO) levels were measured in 2 d (treated), 6 d (desiccated), 10 d (rehydrated) seedlings. Vegetative reactive oxygen species (ROS)/ NO-pathways were studied under normal condition and ABA supply by supplying ROS/NO scavengers. Desiccation caused water loss and increased oxidative toxicity....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Abiotic; Abscisic acid; Nitric oxide; Post germination desiccation tolerance; Wheat.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401493
Imagem não selecionada

Imprime registro no formato completo
Factors determining the structure of fish assemblages in an Amazonian river near to oil and gas exploration areas in the Amazon basin (Brazil): establishing the baseline for environmental evaluation Rev. Bras. Zool.
Costa,Igor David; Freitas,Carlos Edwar de Carvalho.
ABSTRACT Determining the significance of biotic and abiotic factors in the structuring of fish assemblages in freshwater environments is an important question in ecology, particularly in view of environmental changes caused by man. In this paper we sought to identify the factors responsible for the composition and abundance of fish species collected with gill nets in six locations near ports in forest clearance areas opened up for oil and natural gas exploration (Petrobras Pedro Moura Base) in the Urucu River, during drought and flood cycles. In all, 923 individuals from 23 families and 82 species were collected, totalling a biomass of 182,244 g. The most abundant species during the flood season were Bryconops alburnoides (Kner, 1858) and Dianema...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Abiotic; Floodplain; Biological organization; Hydrocarbons.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000500351
Registros recuperados: 3
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional