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	Provedor de dados AgEcon (1) PAB (1) Autor Lankoski, Jussi E. (1) Ollikainen, Markku (1) Pižl,Václav (1) Sklenička,Petr (1) Zeithaml,Josef (1) Palavra-chave Landscape mosaic (2) Agricultural and Food Policy (1) Biodiversity (1) Edge effect (1) First-best instruments (1) Lumbricidae (1) Multifunctional agriculture (1) Nutrient runoff (1) Shannon diversity index (1) Species-area relationship (1) Mais... Tipo do documento Conference Paper or Presentation (1) Info:eu-repo/semantics/article (1) Ano 2009 (1) 2002 (1) País Brazil (1) United States (1) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Earthworm assemblages in an ecotone between forest and arable field and their relations with soil properties PAB Zeithaml,Josef; Pižl,Václav; Sklenička,Petr. The objective of this work was to assess the effects of a forest-field ecotone on earthworm assemblages. Five sites (blocks) differing in the type of crop rotation used in the field were studied in Central Bohemia, Czech Republic. In each block, sampling was carried out in seven parallel rows perpendicular to a transect from a forest (oak or oak-pine) to the centre of a field, both in spring and autumn 2001-2003. Individual rows were located in the forest (5 m from the edge), in the forest edge, and in the field (at 5, 10, 25, 50 and 100 m distances from the forest edge). The density and biomass of earthworms were lowest in the forest, increased markedly in the forest edge, decreased again at 5 or 10 m distance from the forest edge and then continuously... Tipo: Info:eu-repo/semantics/article Palavras-chave: Edge effect; Landscape mosaic; Lumbricidae. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800018 Multifunctional Agriculture: A Framework and Policy Design AgEcon Lankoski, Jussi E.; Ollikainen, Markku. We study the multifunctional character of agriculture in a model of endogenous input use and land allocation augmented by biodiversity, landscape amenity, and nutrient runoff. While biodiversity and landscape amenities represent the public good aspects of agriculture, nutrient runoff represents its negative externalities. We show that the private use of fertilizer input is higher and the size of buffer strips lower than the socially optimal solution requires. Also the socially optimal land allocation differs from the private solution due to the valuation of landscape diversity and runoff damages. The optimal policy is to use a differentiated fertilizer tax and a differentiated buffer strip subsidy and to determine their levels by the equality between the... Tipo: Conference Paper or Presentation Palavras-chave: Biodiversity; First-best instruments; Landscape mosaic; Multifunctional agriculture; Nutrient runoff; Shannon diversity index; Species-area relationship; Agricultural and Food Policy. Ano: 2002 URL: http://purl.umn.edu/24947 Registros recuperados: 2 Primeira ... 1 ... Última

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