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| Registros recuperados: 93 | |
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| Gilmour, Brad; Jotanovic, Aleksandar; Gurung, Rajendra Kumar; Polcyn, Tania; Deng, Hugh. |
| With a relatively small population and 7% of the world's available freshwater resources, Canada is well placed for a world of water scarcity where the real value of water in its many uses becomes more and more apparent. However, action is necessary to ensure that Canada continues to benefit from the social, economic and environmental goods and services derived from water resources. Experience and analysis suggests that policy and incentives play critical roles in the sustainable exploitation of natural resources. In particular, properly valuing water in all its forms and uses appears to be critical. Analysis abroad has underlined the benefits of clearly delineating the roles of regulators, resource managers, infrastructure operators and service... |
| Tipo: Report |
Palavras-chave: Water; Governance; Scarcity; Incentives; Sustainability; Valuation; Accountability; Transparency; Environmental Economics and Policy; Institutional and Behavioral Economics; International Relations/Trade; Resource /Energy Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/46689 |
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| Hyytiainen, Kari; Ahtiainen, Heini; Heikkila, Jaakko; Helin, Janne; Huhtala, Anni; Iho, Antti; Koikkalainen, Kauko; Miettinen, Antti; Pouta, Eija; Vesterinen, Janne. |
| This study introduces a prototype model for evaluating policies to abate agricultural nutrients in the Baltic Sea from a Finnish national point of view. The stochastic simulation model integrates nutrient dynamics of nitrogen and phosphorus in the sea basins adjoining the Finnish coast, nutrient loads from land and other sources, benefits from nutrient abatement (in the form of recreation and other ecosystem services) and the costs of agricultural abatement activities. The aim of this study is to present the overall structure of the model and to demonstrate its potential using preliminary parameters. The model is made flexible for further improvements in all of its ecological and economic components. Results of a sensitivity analysis suggest that... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Ecosystem services; Nutrient abatement; Monte Carlo simulation; Recreation; Valuation; Environmental Economics and Policy; Research Methods/ Statistical Methods. |
| Ano: 2009 |
URL: http://purl.umn.edu/49896 |
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| LIMA, J. A. S.; TAVARES, S. C. C. de H.. |
| Com o objetivo de identificar fontes de resistencia em mangueira ao fungo Botryodiplodia theobromae Pat., agente causal da "morte descendente", foram coletados frutos em pomares localizados na regiao do Submedio Sao Francisco, provenientes de 15 cultivares de mangueira (Preta, Maria, Cumprida roxa, Alphonsus, Hadden, Eduardo, Itiuba, Oiti, Florigon, Itamarace, Brasil, Espada, Irwin e Kensiton). Os embrioes foram extraidos e, em seguida, plantados em sacos de plastico com capacidade para 5 kg, contendo uma mistura constituida por solo+areia+esterco curtido na proporcao de 5:3:1. O experimento foi conduzido em casa-de-vegetacao a temperatura media de 28 oC em delineamento inteiramente casualizado com quatro repeticoes. A cv. Tommy Atkins foi utilizada como... |
| Tipo: Parte de livro |
Palavras-chave: Botryodiplodia theobromaepat; Variety; Diseases; Valuation; Doença; Manga; Morte Descendente; Variedade; Mangoes. |
| Ano: 1998 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/132349 |
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| LIMA, M. F.; DIAS, R. de C. S.; QUEIROZ, M. A. de. |
| Avaliou-se a resistencia de 77 acessos de melancia, coletados em Pernambuco, Bahia e Maranhao, pertencentes ao BAG da Embrapa Semi-Arido, Petrolina, PE, ao virus do mosaicoo da melancia- II (Watermelon mosaic virus- II- WMVII). O experimento foi conduzido em casa telada (anti-afideos) com sistema de ar forcado, a atemperatura de 25-30 oC. O delineamento foi blocos ao acaso, com 4 repeticoes e 5 plantas por parcela. Como inoculo, folhas de aboboreira (Cucurbita pepo), cv. Caserta, provenientes de plantas inoculadas mecanicamente com um isolado de WMV- II, em casa-de-vegetacao, foram maceradas na diluicao 1:10 (p:v), em tampao fosato 0,02 M, Ph 7,0, contendo 0,1% de Na2SO3. Fizeram-se 2 inoculacoes de WMV- II em plantulas, previamente pulverizadas com... |
| Tipo: Parte de livro |
Palavras-chave: Avaliacao; Watermelon; Germplasm bank; Diseases; Valuation; Banco de Germoplasma; Citrullus Lanatus; Doença; Melancia; Mosaico; Vírus. |
| Ano: 1998 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/132392 |
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| Registros recuperados: 93 | |
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