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	Provedor de dados Infoteca-e (5) AgEcon (4) Ecology and Society (2) Rev. Ciênc. Agron. (1) Scientia Agricola (1) Autor CUNHA, T. J. F. (2) ACCIOLY, L. J. de O. (1) ANDRADE, A. G. de (1) Accioly,Luciano José de Oliveira (1) Andrade,Eunice Maia de (1) Aquino,Deodato do Nascimento (1) BHERING, S. B. (1) BROU, T. (1) Burgos,Nivaldo (1) CALDERANO FILHO, B. (1) CARVALHO JUNIOR, W. de (1) CAVALCANTI, E. R. (1) CHAGAS, C. da S. (1) CORREIA, J. R. (1) Calatrava-Requena, Javier (1) Costa,Thomaz Corrêa e Castro da (1) DAVID, G. (1) DELAÎTRE, E. (1) DRUMOND, M. A. (1) DÉRIOZ, P. (1) Mais... Palavra-chave Desertification (13) Desertificação (4) Agribusiness (2) Aboveground biomass (1) Accelerated erosion (1) Activity choice (1) Agricultural and Food Policy (1) Arid soils (1) Arid zones (1) Bacia Hidrográfica (1) CO2 (1) Caatinga (1) China (1) Clima (1) Climate (1) Common Agricultural Policy (1) Community/Rural/Urban Development (1) Conservação (1) Contingent valuation (1) Control mode (1) Mais... Tipo do documento Conference Paper or Presentation (3) Info:eu-repo/semantics/article (2) Peer-Reviewed Reports (2) Artigo de divulgação na mídia (INFOTECA-E) (1) Capítulo em livro técnico (INFOTECA-E) (1) Documentos (INFOTECA-E) (1) Fôlder / Folheto / Cartilha (INFOTECA-E) (1) Journal Article (1) Livro técnico (INFOTECA-E) (1) Mais... Ano 2020 (1) 2019 (1) 2018 (1) 2014 (1) 2010 (2) 2009 (1) 2008 (1) 2005 (1) 2002 (2) 2001 (1) 1979 (1) Mais... País Brazil (7) United States (4) Canada (2) Idioma Inglês (9) Português (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 13 Primeira ... 1 ... Última Fertility Island Formation and Evolution in Dryland Ecosystems Ecology and Society Ridolfi, Luca; Politecnico di Torino; luca.ridolfi@polito.it; Laio, Francesco; Politecnico di Torino; francesco.laio@polito.it. Vast dryland regions around the world are affected by the encroachment of woody vegetation, with important environmental and economical implications. Grassland-to-shrubland conversions are often triggered by disturbance of grassland vegetation, and the consequent formation of barren areas prone to erosion-induced nutrient losses. Inhibition of encroachment by erosion-induced depletion of soil nutrients contributes to the emergence of highly heterogeneous landscapes with shrub-dominated fertility islands surrounded by nutrient-poor bare soil. Here, we develop a process-based simplistic model thataccounts for the two competing processes of resource depletion and shrub encroachment by a non-linear diffusion mechanism. The proposed model is able to generate... Tipo: Peer-Reviewed Reports Palavras-chave: Desertification; Islands of fertility; Non-linear diffusion; Stability; Vegetation patterns. Ano: 2008 Livestock Subsidies and Rangeland Degradation in Central Crete Ecology and Society Lorent, Hugues; University of Louvain; hugues.lorent@uclouvain.be; Tsiourlis, Georgios M.; National Agricultural Research Foundation (NAGREF); gmtsiou@fri.gr; Lambin, Eric; University of Louvain; lambin@geog.ucl.ac.be. Marginal and unstable environmental conditions force stockbreeders in drylands to develop adaptive strategies to ensure stability of production. In intensive market-oriented pastoral systems, the partial substitution of rangeland forage production by external feed increases the influence of commodity prices in stockbreeders’ decisions, which become increasingly decoupled from environmental constraints. In Mediterranean countries of the European Union (EU), Common Agricultural Policy (CAP) subsidies also influence agricultural practices, potentially increasing environmental impacts. By modeling subsidy allocation to sheep and goat breeders in Crete, we showed that livestock subsidies for Less Favoured Areas (LFA) stimulated flock growth up to a... Tipo: Peer-Reviewed Reports Palavras-chave: Common Agricultural Policy; Crete; Desertification; Sheep and goats; Subsidies; Vegetation-cover trend. Ano: 2009 Atelier ORIXAS: Projeto Tripartite África/Brasil/França: luta contra a desertificação: promoção da segurança alimentar e redução da pobreza. Infoteca-e LOIREAU, M.; CARVALHO JUNIOR, W. de; CORREIA, J. R.; LIBOUREL, T.; FARGETTE, M.; CALDERANO FILHO, B.; KHATRA, N. B.; KHIARI, H.; SGHAIER, M.; DAVID, G.; MITJA, D.; MERTENS, B.; PEREIRA, N. R.; ACCIOLY, L. J. de O.; CUNHA, T. J. F.; DELAÎTRE, E.; CHAGAS, C. da S.; BHERING, S. B.; DÉRIOZ, P.; WÉLÉ, A.; FAYE, A.; BROU, T.; ILTIS, J.. No âmbito do Programa de Cooperação Científica Tripartite entre a Agence Inter-établissements de Recherche pourle Développement (AIRD), Agence Panafricaine de la Grande Muraille Verte (APGMV) e o Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), o projeto ORIXAS "Observatórios Regionais Integrados de Regiões Árida, Semiáridas e Sub-úmidas secas" concebido em uma visão transversal, foca principalmente em metodologias e ferramentas para apoiar dispositivos de monitoramento ambiental para ser aplicado nos países inseridos na iniciativa africana Grande Muralha Verde - GMV (Burkina-Faso, Djibouti, Érythrée, Éthiopie, Mali, Mauritanie, Niger, Nigeria, Sénégal, Soudan, Tchad) e tem como objetivo desenvolver abordagens metodológicas e produtos... Tipo: Documentos (INFOTECA-E) Palavras-chave: Projeto ORIXAS; Desertificação; Segurança alimentar; Pobreza; Desertification; Food safety; Poverty. Ano: 2014 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1010038 Zoneamento das áreas suscetíveis à desertificação do estado de Pernambuco. Infoteca-e SA, I. B.; CUNHA, T. J. F.; TAURA, T. A.; DRUMOND, M. A.; CAVALCANTI, E. R.; MENDONÇA, S. de A.; GUESDES, M. V.. Desertificação - conceitos adotados; Combate à desertificação como medida de adaptação às mudanças climáticas; Desertificação e os Objetivos de Desenvolvimento Sustentável Gênero e desertificação; Aspectos metodológicos; Do mapeamento das variáveis biofísicas; Da realização dos Diálogos Municipais e Workshops Regionais; Desertificação no estado de Pernambuco; Um panorama da suscetibilidade à desertificação em Pernambuco em dois recortes temporais; Suscetibilidade à Desertificação nas Regiões de Desenvolvimento Situadas no Semiárido; Região de Desenvolvimento Agreste Setentrional; Região de Desenvolvimento Agreste Central; Região de Desenvolvimento Agreste Meridional; Região de Desenvolvimento Sertão do Pajeú; Região de Desenvolvimento Sertão do Moxotó;... Tipo: Livro técnico (INFOTECA-E) Palavras-chave: Suscetibilidade a desertificação; Pesquisa participativa; Região de Desenvolvimento Agreste Setentrional; Região de Desenvolvimento Agreste Central; Região de Desenvolvimento Agreste Meridional; Região de Desenvolvimento Sertão do Pajeú; Região de Desenvolvimento Sertão do Moxotó; Região de Desenvolvimento Sertão de Itaparica; Região de Desenvolvimento Sertão Central; Região de Desenvolvimento Sertão do Araripe; Semiárido; Pernambuco; Desertificação; Mudança Climática; Zoneamento Ecológico; Método de Pesquisa; Pesquisa Social; Desenvolvimento Sustentável; Arid soils; Arid zones; Desertification. Ano: 2020 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130865 Semi-Árido: aprendendo a conviver com a seca. Infoteca-e MATTALO JUNIOR, H.; LOPES, P. R. C.. bitstream/item/130447/1/Paulo.pdf Tipo: Artigo de divulgação na mídia (INFOTECA-E) Palavras-chave: Convivencia com a seca; Mudanças climáticas; Semi-arido; Resistance; Natural resource.; Recurso natural; Clima; Desertificação.; Drought.; Climate; Desertification. Ano: 2001 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134487 Prevention of advancing degradation and recovery of degraded lands. Infoteca-e ANDRADE, A. G. de; FREITAS, P. L. de. This chapter presents an overview on the main technological contributions of Embrapa and partners to halt land degradation, accelerated erosive processes, desertification, sanding, salinization, and to restore degraded lands, as established in target 15.3 (United Nations, 2018): By 2030, combat desertification, restore degraded land and soil, including land affected by desertification, drought and floods, and strive to achieve a land degradation-neutral world. Tipo: Capítulo em livro técnico (INFOTECA-E) Palavras-chave: Desertificação; Degradação Ambiental; Erosão; Desertification; Land degradation; Accelerated erosion. Ano: 2019 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1114511 Relatório de participação na 10. Reunião da Associação Latinoamericana de Ciências Agrícolas e treinamento sobre manejo de solo e água para as zonas áridas e Semi-Áridas. Infoteca-e SILVA, A. de S.. Participação nos eventos científicos programados pela Associação Latinoamericana de Ciências Agrícolas CALCA), em Acapulco, México, durante o período de 22 a 28 de abril de 1979, com apresentação de trabalhos técnicos-cientificos desenvolvidos no Nordeste do Brasil, sobre manejo de solo e água e métodos de irrigação "não convencionais". Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Região árida; Semi-árida; Relatório.; Água; Bacia Hidrográfica; Conservação; Desertificação; Manejo; Solo.; Soil.; Desertification; Water. Ano: 1979 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/156522 THE ROLE OF STAKEHOLDERS' INVOLVEMENT TO COMBAT DESERTIFICATION: A CASE STUDY IN THE APULIA REGION AgEcon Maraglino, T.; Ricco, V.; Schiralli, M.; Giordano, R.; Pappagallo, G.. Drought and desertification are largely considered as the major and most complex natural hazards. This is mainly due to the complexity of the web of impacts that ripple through too many sectors causing serious economic, social and environmental consequences. Hence, a wide range of actors are interested by drought effects. Empirical investigations in scientific literature have highlighted the differences between the stakeholder' perceptions of drought and desertification phenomena and the results of scientific – technical evaluation. There is no unique definition of the problem, but each individual has her/his own perception of drought and desertification, which is influenced by previous drought experiences and the mental models used to analyse these... Tipo: Conference Paper or Presentation Palavras-chave: Stakeholder; Desertification; Decision making process.; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Food Consumption/Nutrition/Food Safety; Labor and Human Capital. Ano: 2010 URL: http://purl.umn.edu/95201 Benefit Evaluation on the Control Mode for Typical Karst Rocky Desertification in Guizhou Province, China AgEcon Zuo, Xing-jun; Zuo, Tai-an; Xu, Shu-jian. Control mode for typical karst rocky desertification in Guizhou Province, China is selected as the research object. The ecological benefit, the social and economic benefit and the popularization prospect of mode are selected as evaluation indices. Evaluation index system of control mode benefits for karst rocky desertification is established. The Dingtan mode and the Wangjiazhai-Yangchangdong small watershed control mode are selected as evaluation objects. Preliminary assessment on the two modes are carried out by Analytic Hierarchy Process，grading evaluation, and comprehensive evaluation method. Result shows that comprehensive score of Dingtan mode is 3.81, which is higher than the score of Wangjiazhai-Yangchangdong small watershed control mode (3.11). In... Tipo: Journal Article Palavras-chave: Desertification; Control mode; The Dingtan mode; The Wangjiazhai-Yangchangdong small watershed control mode; Guizhou Province; China; Agribusiness. Ano: 2010 URL: http://purl.umn.edu/96070 Valuing Externalities of Watershed Restoration and Erosion Control Projects in Mediterranean Basins: A Comparative Analysis of the Contingent Valuation and Replacement Cost Methods AgEcon Saez, Maria Del Carmen Almansa; Calatrava-Requena, Javier. The methodology used for Economic Valuation of the Externalities generated by the Watershead Restoration and Erosion Control Projects in the Hydrographic Basins of the Mediterranean Slope, is based on the Replacement Cost Method. Environmental Economics, however, today offer us other methodological possibilities, whose application to the valuation of this type of project may prove to be of interest. It is the case of the Contingent Valuation Method used for the evaluation of the effects of the Watershead Restoration and Erosion Control Projects of the Aljibe Basin (Almería) Spain, presented here. The results obtained show that, in this case study, application of Contingent Valuation ascribes greater social profitability of the project, with 5.23 % of IRR... Tipo: Conference Paper or Presentation Palavras-chave: Contingent valuation; Replacement cost; Cost-benefit analysis; Restoration of basins; Desertification; Reforestation; Resource /Energy Economics and Policy. Ano: 2002 URL: http://purl.umn.edu/24847 The Impact of Environmental Policy on Household Income and Activity Choice: Evidence from Sandstorm Source Control Program in North China AgEcon Zhang, Wei; Liu, Can. This paper uses household data to assess the near-term impact of the program on incomes and activity choices of rural households in areas where the sandstorm control program (Beijing and Tianjin Sandstorm Source Control Program) was implemented. Central to our analysis is a unique panel survey conducted by the State Forestry Administration covering years from 1998 to 2003 in 17 counties in three Northern provinces Hebei, Shanxi, and Inner Mongolia (autonomous region). The essential feature of the program is an annual subsidy provided to participating farmers to cover costs associated with permanent retirement of farm land and the planting of saplings. We first look at the impact of program participation on household incomes and, not surprisingly, observe... Tipo: Conference Paper or Presentation Palavras-chave: Environmental program; Impact; Household income; Activity choice; Farmland retirement payment; Sandstorm; Desertification; Environmental Economics and Policy. Ano: 2005 URL: http://purl.umn.edu/19482 Use of remote sensing to identify areas at risk of degradation in the semi-arid region Rev. Ciênc. Agron. Aquino,Deodato do Nascimento; Rocha Neto,Odílio Coimbra da; Moreira,Maurício Alves; Teixeira,Adunias dos Santos; Andrade,Eunice Maia de. ABSTRACT One of the most effective procedures in the evaluation of degraded areas has been the use of remote sensing. The aim of this work was to evaluate the temporal dynamics of the NDVI and rainfall in detecting the degradation of natural resources in a semi-arid region of Brazil. The area under study is located to the west of the district of Tauá, in the State of Ceará, with a predominance of shrub-like caatinga forest. Rainfall data was obtained from FUNCEME. Ten images (dry season) were acquired from a 27-year historical series (1985-2011) from the TM/LANDSAT5 sensor, later converted to surface reflectance using the FLAASH/ENVI extension; NDVI indices were obtained and divided into six classes corresponding to land usage and occupation. The mean... Tipo: Info:eu-repo/semantics/article Palavras-chave: NDVI; Caatinga; Landsat TM5; Desertification. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000300420 Phytomass mapping of the "seridó caatinga" vegetation by the plant area and the normalized difference vegetation indeces Scientia Agricola Costa,Thomaz Corrêa e Castro da; Accioly,Luciano José de Oliveira; Oliveira,Maria Ap. José de; Burgos,Nivaldo; Silva,Flávio Hugo Barreto Batista da. Phytomass is a critical information for economic and environmental activities like the establishment of policies for timber resources, forest management, studies of plant nutrient cycling, CO2 sink, among other. The phytomass of a Caatinga area was obtained by an empirical method using normalized difference vegetation index (NDVI) of Landsat images, the plant area index (PAI) and the phytomass inventory. At a first stage, linear, logarithmic and non-linear models were developed and tested. Bush and tree specimens were considered in the study, so that most of the individuals that contribute to the spectral answer detected by satellite images were included. At a second stage, the orbital parameter NDVI was used to map the PAI, which was used to map the... Tipo: Info:eu-repo/semantics/article Palavras-chave: CO2; LAI; Aboveground biomass; Desertification. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162002000400014 Registros recuperados: 13 Primeira ... 1 ... Última

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