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| Registros recuperados: 617 | |
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| Paulsen, Hans-Marten; Bauer, Benjamin. |
| Kohlenstoffinventare sind ein wichtiges Instrument, um Klimabilanzen auf verschiedener Ebene zu erstellen. Hinsichtlich der Diskussion zur Berücksichtigung von Landwirtschaft im Emissionshandel dient die Erfassung von natürlichen Kohlenstoffsenken auf Wirtschafts- und Randflächen. In dieser Arbeit wurde für den Versuchsbetrieb des Instituts für Ökologischen Landbau in Trenthorst, Schleswig-Holstein ein Bodenkohlenstoffinventar erstellt. Besondere Beachtung fanden die landschaftsprägenden Wallhecken, die größere Mengen an Boden anreichern. Diese wurden bislang nicht in Klimabewertungen mit einbezogen. Bodenuntersuchungen und Flächenbestimmungen erfolgten an Acker, Grünland, Wald und Wallhecken. Es fanden zwei Ansätze zur Erfassung des... |
| Tipo: Book chapter |
Palavras-chave: Soil quality; Environmental aspects. |
| Ano: 2009 |
URL: http://orgprints.org/17026/1/08_HP_Kohlenstoff.pdf |
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| Halberg, Niels. |
| The debate over agricultural sustainability continues due to the challenges of reducing externalities of intensive farming methods and preserving vital natural capital, but many definitions of sustainability are too wide to allow for a prioritized assessment. This paper uses a more narrow definition of agricultural sustainability focusing on the functional integrity of a system to highlight specific aspects of vital importance for the long-term resilience and reproducibility of agricultural systems. Key areas of resource sufficiency are also identified. Based on a review of scientific literature the relative sustainability of organic agriculture is assessed with a focus on environmental impact and resourceuse in Europe and North America. While there are... |
| Tipo: Journal paper |
Palavras-chave: Environmental aspects. |
| Ano: 2012 |
URL: http://orgprints.org/22190/1/22190.pdf |
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| LIMA, Stefany Lorrayny; MARIMON JÚNIOR, Ben Hur; PETTER, Fabiano André; TAMIOZZO, Suelen; BUCK, Guilherme Bossi; MARIMON, Beatriz Schwantes. |
| In this study, we tested the hypothesis that pyrogenic carbon (biochar) has properties that enable it to replace fresh organic matter (cattle manure) in seedling substrates. These properties include specific electrophysiological interactions in soil-plant media, stability and longevity. The experiment was conducted in the nursery at the State University of Mato Grosso, located in the municipality of Nova Xavantina, between April and June 2011. The experimental design consisted of randomized blocks with ten treatments and four replicates, including a commercial substrate. Linear regression analysis showed a strong positive relationship between manure treatments and number of leaves, fresh and dry biomass, diameter, height and Dickson Quality Index at 30... |
| Tipo: Journal paper |
Palavras-chave: Biodiversity and ecosystem services; Research methodology and philosophy; Environmental aspects; Knowledge management. |
| Ano: 2013 |
URL: http://orgprints.org/29801/1/Lima_Biochar.pdf |
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| Blakemore, R.J.. |
| Earthworm proliferations of 57–122% (mean +78.5%) under adjacent (i.e., same soil/climate) organic vs. conventional fields related to improved soil quality and higher yields of 16–80% (mean +39.1%) in winter wheat, tropical paddy rice and sugarcane. Soil moisture differences ranged -11–41% (mean +12.0%) while soil carbon in SOM humus ranged 26–128% (mean +64.9%). Correlation (r >0.835) of earthworms is with crop yield and both soil H2O & C storage hence atmospheric CO2 reduction via photosynthesis / humification. A 1,000 yr-old pasture at Haughley had highest earthworms (424 m-2), stored 222 t ha-1 carbon in its soil organic matter (SOM), plus moisture capacity was 90.9% above an adjacent arable field. Relating to global climate change,... |
| Tipo: Journal paper |
Palavras-chave: Soil quality; Farming Systems; Soil biology; Crop husbandry; Soil; Environmental aspects. |
| Ano: 2017 |
URL: http://orgprints.org/31189/3/VVV%20part-II.pdf |
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| Foereid, Bente; Høgh-Jensen, Henning. |
| Decline in carbon content in agricultural soils contributes both to climate change and to soil fertility problems. The CENTURY element dynamics simulation model was tested and adapted for Northern European agricultural conditions using long-term datasets from Askov experimental farm in southern Denmark. The part of the model dealing with decomposition was tested in isolation using a bare fallow experiment and it could predict soil organic matter levels with high accuracy. In the cropping experiments predictions were less accurate. The crop production was not accurately predicted. Predictions were more accurate on loamy than on sandy soils. The model was used to predict the effect of conversion to organic agriculture on carbon sequestration as soil organic... |
| Tipo: Journal paper |
Palavras-chave: Environmental aspects. |
| Ano: 2004 |
URL: http://orgprints.org/18304/1/18304.pdf |
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| McLean, Dr Barbara; Frost, David. |
| 1. Organophosphate (OP) based dips offer a broad spectrum control against all major ectoparasites in the UK. However, there is continuing controversy over the safety to dip operators and the environment. The use of OPs is prohibited by organic standards, primarily because of concerns about mammalian toxicity. 2. Organic farmers are permitted to use synthetic pyrethroids (SPs)(dip products and pour-on products) and/or macrocyclic lactones (injectable products) to treat/control ectoparasites providing a derogation has been obtained from the certifying body. 3. SPs have been shown to be considerably more toxic to aquatic organisms than OPs. The environmental impact of SPs is not limited to levels in dip but also to residues in sheep fleeces. SPs may be... |
| Tipo: Report |
Palavras-chave: Environmental aspects; Health and welfare. |
| Ano: 2003 |
URL: http://orgprints.org/10825/1/ectoparasitewales.pdf |
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| Dytrtova, Karolina; Sarapatka, Borivoj. |
| This paper aims to identify the main aspects of farmers´ motivation to farm organically and their activities relating to changes in landscape composition. Organic farmers’ perceptions of landscape elements were observed through questionnaires completed by 87 farmers in the Czech Republic. The majority of farmers (88.5%) stated that environment-friendly farming practices were the main reason to enter the organic farming system. A large number of farmers (69%) stated that they have problems with some constraining conditions and rules in agri-environmental measures. Regarding the size of farms, small farms were more willing to devote part of their farmland to landscape elements. Respondents who farmed in LFA areas and landscape protected areas mentioned more... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Landscape and recreation; Environmental aspects. |
| Ano: 2010 |
URL: http://orgprints.org/18595/1/Applied_Biology_2010.pdf |
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| Pavie, Jérome; Chambaut, H.; Madeline, L.; Experton, Catherine. |
| The main objective of "CedABio" was to estimate the environmental and socioeconomic benefits anticipated in the bovine farming systems adopting an organic production mode. Beyond some obvious advantages, the goal was to measure and ascertain the real contributions of a change to organic farming for the dairy and beef farms. To lead this assessment, strong and technically accessible indicators were selected, tested, and then looked for in 144 livestock farms, located in varied contexts to take into account territorial diversity. Half of the farms were in organic mode. Their results are compared with the other half producing in conventional mode, situated in the same zones, with similar structures. The results and the observations performed in this... |
| Tipo: Journal paper |
Palavras-chave: Production systems; Farm economics; Animal husbandry; Social aspects; Environmental aspects. |
| Ano: 2013 |
URL: http://orgprints.org/26211/1/Pavie_2013_CIAG_Vol30.pdf |
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| Pinto, Nelson Guilherme Machado; Coronel, Daniel Arruda. |
| O objetivo deste trabalho consiste em analisar o padrão de degradação dos municípios e das mesorregiões do estado do Rio Grande do Sul a partir da criação de um Índice de Degradação (ID). Neste sentido, foram pesquisadas 29 variáveis de 496 municípios gaúchos para o ano de 2006. O valor médio da degradação ambiental dos municípios gaúchos é de 62,95%. Esse valor é de alta representatividade e demonstra que mais da metade do território gaúcho enfrenta problemas relacionados à degradação ambiental. No que tange aos municípios, verifica-se que muitos deles possuem 100% com relação ao Índice de Degradação. Esses municípios e suas respectivas mesorregiões possuem ligação direta com a atividade agropecuária, confirmando a participação dessa atividade no... |
| Tipo: Journal paper |
Palavras-chave: Environmental aspects. |
| Ano: 2014 |
URL: http://orgprints.org/26615/1/Machado_Degrada%C3%A7%C3%A3o.pdf |
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| Peigne, Joséphine; Casagrande, Marion; Payet, Vincent; David, Christophe; Sans, F. Xavier; Blanco-Moreno, José M.; Cooper, Julia; Gascoyne, Kate; Antichi, Daniele; Bàrberi, Paolo; Bigongiali, Federica; Surböck, Andreas; Kranzler, Andreas; Beechman, Annelies; Willekens, Koen; Luik, Anne; Matt, Darja; Grosse, Meike; Heß, Jürgen; Clerc, Maurice; Dierauer, Hansueli; Mäder, Paul. |
| The interest of organic farmers in adopting conservation agriculture principles, including minimal soil disturbance, permanent soil cover and crop rotation has been growing since the early 2000s. However, currently there is no network for organic farmers practicing conservation agriculture, and a lack of knowledge on how organic farmers implement conservation agriculture in practice. Consequently, few technical references are available for organic farmers when they start applying conservation agriculture practices, in particular on controlling weeds without the use of herbicides. The main objectives of this study were: (1) to explore the diversity of conservation agriculture techniques (i.e., reduced tillage, no-tillage and green manures) practiced among... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Soil quality; Environmental aspects; Europe. |
| Ano: 2016 |
URL: http://orgprints.org/31244/1/peigne-etal-2015-Howorganicfarmerspractice-RAaFS-31-1-p72-85.pdf |
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| Znaor, Darko. |
| Introduction Most agricultural operations, such as soil tillage, manuring, grazing, and irrigation, pose a serious threat to water quality. Agriculture is a heavy water user and a serious water polluter (nutrients, pesticides, salts, pathogens, heavy metals, oxygen-depleting and radioactive substances, etc.). In addition, agriculture threatens water habitats. The UN “Convention for the Protection and Use of Transboundary Watercourses and International Lakes” ratified at Helsinki in 1992 obliges the signatory countries to further prevent, control and reduce water pollution from point and non-point sources. The implementation of the Convention is co-ordinated by the UN Economic Commission for Europe. In October 1999, this organisation commissioned a study... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Farm economics; Farming Systems; Crop husbandry; Social aspects; Air and water emissions; Soil; Biodiversity and ecosystem services; Policy environments and social economy; Environmental aspects; Farm nutrient management; Knowledge management. |
| Ano: 2000 |
URL: http://orgprints.org/26414/1/books.jpg |
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| Berck, Peter; Hess, Peter. |
| This paper explains the development and implementation of a methodology for assessing the economic impacts of large-scale environmental regulations. The development process began with a literature review surveying channels through which environmental regulations might influence economic performance. Avenues deemed suitable were incorporated into a computable general equilibrium (CGE) model of the California economy. This model is based on the California Department of Finance's Dynamic Revenue Analysis Model (DRAM). Modifications to DRAM for the current project include a revised sectoring scheme that features industries of particular regulatory interest, revamped data matrices that accommodate this new sectoring scheme, a new air pollution module,... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Cge models; Environmental aspects; Environmental policy; Methodology; Regulations; Environmental Economics and Policy. |
| Ano: 2000 |
URL: http://purl.umn.edu/43917 |
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| Registros recuperados: 617 | |
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