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Agricultural Land Tenure and Carbon Offsets AgEcon
Claassen, Roger; Morehart, Mitchell J..
Agricultural Land Tenure and Carbon Offsets examines the potential role that land ownership might play in determining the agricultural sector’s involvement in carbon sequestration programs. By estimating the carbon sequestration potential of agricultural producers who own most of the land they operate, this report finds that land ownership should not be a constraining factor in agriculture’s ability to provide carbon offsets.
Tipo: Report Palavras-chave: Keywords: Climate change; Carbon sequestration; Carbon offsets; Cap and trade programs; Farmland ownership; Tenure; Farming practices; Conservation practices; Conservation Reserve Program; Crops; Livestock; Environmental services; ERS; USDA; Environmental Economics and Policy; Land Economics/Use.
Ano: 2009 URL: http://purl.umn.edu/58994
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An Economic Analysis and Assessment of Impacts of Conservation Practices on Agro-Environmental Conditions in the Lower Bad River Basin of South Dakota AgEcon
Parvez, Md Rezwanul; Janssen, Larry; Stover, Ronald; Reitsma, Kurt D.; Smart, Alexander.
In this poster, we report selected socio-economic findings from analysis of the Bad River Water Quality project (BRWQ) implemented in western South Dakota from 1990 through 2004. An overview of various BRWQ project phases are presented, along with analysis of cost of conservation practices applied and local landowners current assessment of the practices implemented from 1990 – 2004.
Tipo: Conference Paper or Presentation Palavras-chave: Rangeland conservation; Cost-sharing; Conservation practices; Conservation assessment; Conservation programs; Resource economics; Bad River Water Quality project; Environmental Economics and Policy; Land Economics/Use; Q20.
Ano: 2011 URL: http://purl.umn.edu/103718
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An examination of soil and water conservation practices in the paddy fields of Guilan province, Iran Anais da ABC (AABC)
ASHOORI,DARYOUSH; BAGHERI,ASGHAR; ALLAHYARI,MOHAMMAD S.; AL-RIMAWI,AHMAD S..
ABSTRACT This study examined the use of soil and water conservation (SWC) practices among rice farmers in Iran. A random sample of 400 rice paddy farmers in the Foumanat plain of Guilan province, who use SWC measures, was drawn from a population of 52 thousand farmers. A two-part questionnaire was used to examine the level of utilization of SWC practices and to profile paddy farmers. Internal consistency was demonstrated with a coefficient alpha of 0.76, and the content and face validity of the instrument was confirmed by a panel of soil and water experts. Descriptive and analytical statistics were used to analyze the data. Results of ANOVA indicated that the mean levels of SWC practices vary considerably at the 0.01 level of significance by groups of age,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Conservation practices; Soil and water; Rice paddy; Foumanat plain; Iran..
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000300959
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ASSESSING THE COSTS AND ENVIRONMENTAL CONSEQUENCES OF AGRICULTURAL LAND USE CHANGES: A SITE-SPECIFIC, POLICY-SCALE MODELING APPROACH AgEcon
Wu, JunJie; Adams, Richard M.; Kling, Catherine L.; Tanaka, Katsuya.
The growth in federal conservation programs has created a need for policy modeling frameworks capable of measuring micro-level behavioral responses and macro-level landscape changes. This paper presents an empirical model that predicts crop choices, crop rotations, and conservation tillage adoption as a function of conservation payment levels, profits, and other variables at more than 42,000 agricultural sites of the National Resource Inventory (NRI) in the Upper Mississippi River Basin. Predicted changes in crop choices and tillage practices are then fed into site-specific environmental production functions to determine changes in nitrate runoff and leaching and in water and wind erosion at each NRI site. This policy-scale model is applied to the case of...
Tipo: Working or Discussion Paper Palavras-chave: Agricultural policy; Conservation practices; Green payments; Land use changes; Nitrate runoff and leaching; Non-point pollution; Soil erosion; Environmental Economics and Policy; Land Economics/Use.
Ano: 2003 URL: http://purl.umn.edu/18475
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Assessment of Efficiency and Adequacy of Retention Terraces Rev. Bras. Ciênc. Solo
Miranda,Antônio Calazans Reis; Silva,Danilo Paulúcio da; Mello,Eloy Lemos de; Pruski,Fernando Falco.
Due to losses caused by water erosion, the development of techniques that increase the efficiency of soil conservation practices is fundamental. Terracing of agricultural lands is an important conservation practice. Bearing in mind that improperly built terraces may negatively affect the landscape, the purpose of this work was to evaluate the efficiency as well as the adequacy of retention terraces. Assessments were performed in four terraces implanted in different states, all located in the mideastern region of the state of Minas Gerais. The water storage efficiency of the terraces was determined by comparing the effective with the required storage capacity, as established in the project. Proposals were also made for the adequacy of the assessed terraces,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Water erosion; Surface runoff; Conservation practices; Terrace systems.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000200027
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Bambus no Brasil: da biologia à tecnologia. Infoteca-e
DRUMOND, P. M.; WIEDMAN, G..
O bambu (ou taboca, taquara, entre outros diferentes nomes existentes no Brasil) é uma gramínea de ampla distribuição geográfica. Existem no mundo em torno de 1.300 espécies de bambu. O Brasil é líder de ocorrência nas Américas, com cerca de 200 espécies, entre nativas e exóticas, sendo a grande maioria endêmica. Há milênios, o bambu é conhecido e utilizado no Oriente para as mais diversas funções do cotidiano: alimento, estruturas de casas, paredes, telhas, portas e janelas, mobiliário, utensílios de cozinha, objetos de decoração, cercas, pontes, irrigação, drenos, embarcações, contenção de encostas, entre outras. Sítios arqueológicos no Equador mostram que o bambu é usado há cerca de 5 mil anos na América do Sul, primeiramente pelos indígenas. Em países...
Tipo: Livro técnico (INFOTECA-E) Palavras-chave: Prácticas de conservación.; Bambués; Desarrollo socioeconómico; Industralización; Bambu; Bambusa spp; Conservação; Desenvolvimento socio-econômico; Produção; Industrialização; Biologia Vegetal.; Bamboos; Plant biology; Conservation practices; Socioeconomic development; Industrialization..
Ano: 2017 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1078373
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Efeito da aplicação de revestimentos comestíveis para conservação de tomate italiano (Solanum lycopersicum L.) 'Ravena' in natura. Repositório Alice
AMANCIO, D. F..
O objetivo deste trabalho foi comparar e avaliar o efeito de dois revestimentos comestível e um controle (não revestido) por análises físicas, químicas e patológicas armazenadas à temperatura ambiente e aplicados no tomate. Os frutos foram cultivados no sistema TOMATEC e colhidos na fase madura. Para avaliação da qualidade após a colheita, os tomates foram submetidos aos seguintes procedimentos: Controle (sem imersão em água),Solução de alginato de sódio (componente principal) e nanopartículas de óxido de zinco (imersas por 2 min; T1)e Solução à base de carboximetil celulose (componente principal) e óleo orgânico de nim (imerso por 2 min; T2). Em seguida, após a aplicação das soluções,os frutos foram secos e armazenados a 25ºC, 80-85% RH por 12 dias. Foram...
Tipo: Tese/dissertação (ALICE) Palavras-chave: Alterações físico-químicas; Vida útil; Physical-chemical changes; Tecnologia de Alimento; Conservação; Pós-Colheita; Food technology; Postharvest treatment; Conservation practices.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1122945
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Espacialização de espécies florestais por classe diamétrica usando máxima entropia no sudoeste da Amazônia. Repositório Alice
FIGUEIREDO, S. M. de M.; FIGUEIREDO, E. O..
O objetivo do estudo foi analisar a predição da distribuição de espécies florestais madeireiras, em escala local, utilizando dados de ocorrência agrupados por classe diamétrica. Para estimar a distribuição foi utilizado o método de máxima entropia (Maxent) e as ocorrências são de inventário florestal de planos de manejo. Foram selecionadas seis variáveis preditoras, por espécie, pelo método de todas as regressões possíveis. Os modelos tiveram em média bom desempenho (AUC = 0,7; taxa de omissão = 8,8%), demonstrando a viabilidade de se predizer a distribuição de espécies por classe diamétrica. De acordo com os modelos, Astonium lecointei, Clarisia racemosa e Ceiba pentandra com diâmetro a altura do peito (DAP) ≥ 100 cm têm maior probabilidade de...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Árboles forestales; Inventario forestal; Biodiversidad; Prácticas de conservación; Manejo florestal; Manejo forestal; Sistemas de información geográfica; Teledetección; Método da Máxima Entropia (Maxent); Maximum Entropy Method (Maxent); Modeflora; Predição; Predicción; Embrapa Acre; Instituto de Meio Ambiente do Acre; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Árvore Florestal; Diâmetro; Biogeografia; Inventário Florestal; Biodiversidade; Conservação; Administração Florestal; Sistema de Informação Geográfica; Sensoriamento Remoto; Dendrometria; Forest trees; Biogeography; Forest inventory; Biodiversity; Conservation practices; Forest management; Geographic information systems; Remote sensing; Forest mensuration; Prediction.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1110086
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ESTIMATES OF PUBLIC SECTOR TRANSACTION COSTS IN NRCS PROGRAMS AgEcon
McCann, Laura M.J.; Easter, K. William.
When evaluating the economic efficiency of policies to reduce nonpoint source pollution, administrative or transaction costs are usually not taken into account. While the importance of transaction costs has been recognized in the theoretical literature, the fact that they are not incorporated in empirical analyses means that, in effect, these costs are given a zero value. This issue is examined quantitatively using data collected by the National Resource Conservation Service (NRCS). Transaction costs are found to be a significant portion (38 percent) of overall conservation costs. This provides strong support for including these costs in economic evaluations of alternative policy instruments.
Tipo: Journal Article Palavras-chave: NRCS; Transaction costs; Conservation practices; Abatement costs; Environmental policy; Environmental Economics and Policy.
Ano: 2000 URL: http://purl.umn.edu/15313
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FACTORS AFFECTING CONSERVATION PRACTICE BEHAVIOR OF CRP PARTICIPANTS IN ALABAMA AgEcon
Hendrix, Shannon; Wheelock, Gerald; Onianwa, Okwudili O..
This study examines the factors that affect conservation practice choices of CRP farmers in Alabama. From over 9,000 contracts enrolled in the state between 1986 and 1995, 594 were randomly selected for the study. A multiple-regression analysis was employed to analyze the data. Results indicate that education, ratio of cropland in CRP, farm size, gender, prior crop practice, and geographic location of contract had a significant influence on the choice of conservation practice adopted.
Tipo: Journal Article Palavras-chave: Conservation practices; Conservation Reserve Program; CRP contracts; Cost share; Erodible cropland; Grass practice; Land retirement; Tree practice; Farm Management; Land Economics/Use.
Ano: 1999 URL: http://purl.umn.edu/14730
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FROM THE PERSPECTIVE OF GLOBAL WARMING: ALTERNATIVE FARMING SYSTEMS AND SUSTAINABILITY AgEcon
Paudel, Krishna P.; Lohr, Luanne.
According to Article 3.4 of the Kyoto Protocol, agricultural soil could be used as a sink for carbon sequestration. Soil sequestration of carbon provides dual benefits: an increase in soil productivity and a reduction in atmospheric carbon concentration. The gain in soil productivity is a slow process and attaining a steady-state level of carbon in soil takes several years. A frequently encountered difficulty in this situation is how to discount the future benefit of carbon sequestration into a current term. We compared the net benefit of four alternative management systems using discount rates based on the sliding gamma distribution, market rate of investment, and the social rate of time preference. We also calculated the sustainability of these alternate...
Tipo: Working or Discussion Paper Palavras-chave: Carbon sequestration; Conservation practices; Strong and weak sustainability; Discounting method; Environmental Economics and Policy; Production Economics.
Ano: 2002 URL: http://purl.umn.edu/31656
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Genetic diversity of a natural population of Mezilaurus itauba (Meisn.) Taub. ex Mez. in the southern Amazon, Brazil. Repositório Alice
EBERT, A.; BALDONI, A. B.; SKOWRONSKI, L.; CONSTANTINO. M.; BARROS. J. H. de S.; COSTA, R. B. da.
Genetic diversity studies in natural forest species populations have consistently expanded in recent years. Considering that biodiversity is directly related to genetic variation among and within populations, its study has become essential to the knowledge of genetic patterns. The study assessed genetic diversity of a Mezilaurus itauba population, detecting similarity and dissimilarity evaluating distribution intensity of adult and juvenile trees in remnant rain forest fragments in southern Amazon, Brazil. Leaf and cambium samples were randomly collected from 36 reproductive individuals. Eleven RAPD (random-amplified polymorphic DNA) primers were tested for genetic similarity analyses. The obtained data demonstrated that the species presented 79.77%...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Genetic population; Manejo florestal; Genética de população; Similaridade genética; Conservação; Conservation practices; Forest management; Genetic similarity.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1087215
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GOVERNMENT POLICY, WIND EROSION, AND ECONOMIC VIABILITY IN SEMI-ARID AGRICULTURE: THE CASE OF THE SOUTHERN TEXAS HIGH PLAINS AgEcon
Bunn, Julie A..
The 1996 farm bill challenges agricultural producers to pursue conservation objectives while allowing flexibility and reducing subsidies. The nature of this challenge for semi-arid rainfed, wind-erosion-prone agriculture is explored via a behavioral model. Simulations of farm-firm decision making under scenarios in the southern Texas High Plains are evaluated. Results indicate that the removal of subsidies, while lowering farm incomes, does not, under most assumptions, alter cropping system choice. Alternatively, under a variety of assumptions, the imposition of an erosion tax shuts down cropping.
Tipo: Journal Article Palavras-chave: Conservation practices; Cropping system choice; Economic dynamics; FAIR Act of 1996; Agricultural and Food Policy.
Ano: 1998 URL: http://purl.umn.edu/15551
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Looking for attitudes related to amphibian species decline: how are peer-reviewed publications of education activities compared to ecological research? Anais da ABC (AABC)
MORMUL,ROGER P.; MORMUL,TAYLA D.S.; SANTOS,GUSTAVO M.B.; SANTANA,ANA R.A..
ABSTRACT Biodiversity decline has been the focus of discussions in the last decade, especially on the amphibian species decline. After a scientometric analysis using international databases, we found that the number of peer-reviewed articles considering education practices related to the theme increased along with the number of ecological researches. However, the increase in ecological researches is much higher than the increase in publications of education practices. Studies suggest that conservation attitudes are important and that education practices are an important tool for improving human perceptions on this subject. In this sense, increase the publication of projects and programs results related to local education practices in international journals...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Environmental education; Conservation practices; Teaching activities; Amphibian extinctions; Theory and practice.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000200491
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Managing agricultural phosphorus to minimize water quality impacts Scientia Agricola
Sharpley,Andrew.
ABSTRACT Eutrophication of surface waters remains a major use-impairment in many countries, which, in fresh waters, is accelerated by phosphorus (P) inputs from both point (e.g., municipal waste water treatment plants) and nonpoint sources (e.g., urban and agricultural runoff). As point sources tend to be easier to identify and control, greater attention has recently focused on reducing nonpoint sources of P. In Brazil, agricultural productivity has increased tremendously over the last decade as a consequence, to a large extent, of increases in the use of fertilizer and improved land management. For instance, adoption of the “4R” approach (i.e., right rate, right time, right source, and right placement of P) to fertilizer management can decrease P runoff....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fertilizer management; Conservation practices; Runoff; Erosion; Eutrophication.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000100001
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Plano de manejo da Reserva Particular do Patrimônio Natural da Fazenda Nhumirim. Infoteca-e
NUNES, A. P.; SORIANO, B. M. A.; FERNANDES, F. A.; SEVERO NETO, F.; PELLEGRIN, L. A.; SALIS, S. M.; FERREIRA, V, L.; TOMAS, W. M..
Espera-se que este Plano de Manejo, elaborado cuidadosamente por uma equipe de pesquisadores e parceiros de conhecimento ímpar sobre o Pantanal, seja objeto de um manejo eficiente e exemplar para com a biodiversidade da região e que motive outros proprietários a refletirem sobre a importância e a responsabilidade de manter e devolver tudo de bom que o Pantanal nos oferece.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Proteção Ambiental; Preservação da Natureza; The Nature Conservancy; Conservation areas; Conservation practices.
Ano: 2021 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130060
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Sementes Crioulas: Importância Social e ODS's. Repositório Alice
TOMASSEVSKI, E. A.; JULIANO, R. S.; BOURSHEIDT, D. M.; FEIDEN, A..
Resumo: A pesquisa possui como objetivo mostrar a importância histórica das Mobilizações Sociais, na conservação das sementes crioulas, e na determinação do Objetivo do Desenvolvimento Sustentável nº 2. Para o cumprimento desse objetivo foi realizada uma Pesquisa Bibliográfica acerca dos Guardiões de Sementes Crioulas, suas organizações sociais, a importância das feiras e eventos de sementes crioulas adotadas dentro das Estratégias de Conservação e o papel fundamental das Políticas Públicas. Nesse contexto, foi realizado um recorte acerca dos eventos de sementes crioulas da Rede de Sementes da Agroecologia do Estado do Paraná-RESA, e nessa configuração levantou-se os eventos realizados pela organização no ano de 2019. Desse estudo depreende-se que a...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Semente; Conservação; Conservation practices; Seeds.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1127705
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The Resource and Agricultural Policy System (RAPS): Upgrade and Documentation AgEcon
Wu, JunJie.
The Resource and Agricultural Policy System (RAPS) is upgraded and documented in this technical report. RAPS was developed to estimate the environmental impacts of farming practices and policy in 128,591 National Resources Inventory (NRI) sites in the Central United States (the Corn Belt, Lake States, and Northern Plains). This modeling system integrates the effects of soils, climate, crops, and management practices on several environmental indicators including nitrate runoff and leaching, pesticide runoff and leaching, water and wind erosion, and soil organic carbon. RAPS can be used to provide timely information on the nation's environmental health as it is impacted by agriculture and by changes in agricultural and resource policies.
Tipo: Working or Discussion Paper Palavras-chave: Agricultural policy; Carbon sequestration; Conservation practices; Environmental effects; Integrated modeling systems; Nitrate water pollution; Soil erosion; Agricultural and Food Policy.
Ano: 2000 URL: http://purl.umn.edu/18654
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The role of grazier motivations and risk attitudes in the adoption of grazing best management practices AgEcon
Greiner, Romy; Miller, Owen; Patterson, Louisa.
The onus on landholders in relation to environmental performance is ever increasing. One tool for achieving environmental improvements is the design and promotion of region-specific ‘best management practices’ (BMPs). These are conservation practices aimed at reducing diffuse source pollution from agricultural lands and thus improving end-of-catchment water quality. A suite of grazing BMPs were developed for the Burdekin Dry Tropics region in a consultative fashion but without explicit consideration of knowledge of adoption processes. It is known from the literature that farmers’ goals and risk perceptions in particular influence adoption decisions. This paper utilises the data from an earlier grazier survey to explore to what extent grazier motivations...
Tipo: Conference Paper or Presentation Palavras-chave: Conservation practices; Adoption; Water quality; Grazing; Burdekin River catchment; Best management practices; Risk management; Motivations; Empirical research; Correlations; Factor analysis; Environmental Economics and Policy; Farm Management; Risk and Uncertainty.
Ano: 2008 URL: http://purl.umn.edu/6002
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Water erosion risk prediction in eucalyptus plantations Ciência e Agrotecnologia
Silva,Mayesse Aparecida da; Silva,Marx Leandro Naves; Curi,Nilton; Oliveira,Anna Hoffmann; Avanzi,Junior Cesar; Norton,Lloyd Darrell.
Eucalyptus plantations are normally found in vulnerable ecosystems such as steep slope, soil with low natural fertility and lands that were degraded by agriculture. The objective of this study was to obtain Universal Soil Loss Equation (USLE) factors and use them to estimate water erosion risk in regions with eucalyptus planted. The USLE factors were obtained in field plots under natural rainfall in the Rio Doce Basin, MG, Brazil, and the model applied to assess erosion risk using USLE in a Geographic Information System. The study area showed rainfall-runoff erosivity values from 10,721 to 10,642 MJ mm ha-1 h-1 yr-1. Some soils (Latosols) had very low erodibility values (2.0 x 10-4 and 1.0 x 10-4t h MJ-1 mm-1), the topographic factor ranged from 0.03 to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: USLE factors; Soil loss tolerance; Conservation practices; Forest management.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000200007
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