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Registros recuperados: 196
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Using indicators for evaluating,comparing and communicating the ecological status of exploited marine ecosystems. 2. Settinf the scene OceanDocs
Shin, Y.J.; Shannon, L. J.; Bundy, A.; Coll, M.; Aydin, K.; Bez, N.; Blanchard, J.L.; Borges, M.F.; Diallo, I.; Diaz, E.; Heymans, J.J.; Hill, L.; Johannesen, E.; Jouffre, D.; Kifani, S.; Labrosse, P.; Link, J. S.; Mackinson, S.; Masski, H.; Mo¨llmann, C.; Neira, S.; Ojaveer, H.; Ould Mohammed Abdallahi, K.,; Perry, I.; Thiao, D.; Yemane, D.; Cury, P.M..
Tipo: Journal Contribution Palavras-chave: Indicators; Evaluation; Ecological efficiency; Ecosystems; Marine environment; Indicators.
Ano: 2010 URL: http://hdl.handle.net/1834/4980
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Uso e cobertura vegetal das terras de áreas tropicais montanhosas da serra dos Órgãos, estado do Rio de Janeiro. Repositório Alice
CALDERANO FILHO, B.; BHERING, S. B.; CARVALHO JUNIOR, W. de; CALDERANO, S. B.; CHAGAS, C. da S.; POLIVANOV, H..
O objetivo do trabalho foi mapear o uso e cobertura das terras na área de influência do alto curso do Rio Grande, visando gerar subsídios para mitigar os conflitos de uso do solo e fornecer informações para o planejamento e gerenciamento sustentável das terras, de paisagens tropicais montanhosas. A metodologia utilizada combinou produtos de sensoriamento remoto, geração de modelo digital de elevação (MDE), classificação digital de imagens, sistema de informação geográfica, práticas de geoprocessamento e trabalhos de campo apoiados em pontos georreferenciados por GPS e coletas de dados. Foram gerados mapas de uso e cobertura das terras por classificação supervisionada e não supervisionada de imagens TM-LANDSAT 5 e de forma híbrida por fotointerpretação. Os...
Tipo: Artigo de periódico Palavras-chave: Planejamento; Meio Ambiente; Ecossistema; Uso da Terra; Sensoriamento Remoto; Sistema de Informação Geográfica; Ecosystems; Land use planning; Remote sensing; Geographic information systems.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1111819
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Utilisation des submersibles en biologie et en ecologie abyssale ArchiMer
Alayse, Anne-marie.
With the advent of deep submergence research vessels (DSRVs) biological and ecological studies of ocean deeps have made great strides. Especially these submersibles allowed to conduct physiological and biochemical experiments on benthic fauna directly on the bottom or on board with alive retrieved animals. A second great interest is the possibility to work in chaotic areas and on microenvironments. Without DSRVs most of measurements and observations obtained on hydrothermals vents would had been impossible. We will present the different equipment designed for the two French DSRVs used during the cruises conducted by the Departement "Environnement Profond" de l'IFREMER to study hydrothermal and "normal" deep-sea ecosystems. We will discuss the new devices...
Tipo: Text Palavras-chave: Oceanography; Hydrothermal springs; Ecosystems; Abyssal zone; Cruises; Ecology; Biology; Deep water; Unmanned vehicles; Manned vehicles.
Ano: 1990 URL: http://archimer.ifremer.fr/doc/1990/acte-1146.pdf
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Utilisation du submersible Cyana pour l'etude du macroplancton fragile ArchiMer
Laval, P.
The gelatinous macroplanktonic organisms living in the deep sea can only be studied with manned submersibles. There is presently in increasing interest in the study of the role of this part of the pelagic ecosystem, because they are strongly involved in the transformation of the particulate organic matter. Their transparency, small size and mobility present technical challenges, unanticipated by the designers of the first submersibles, aimed at the sea bottom observation. Despite these limitations, the use of conventional submersibles has brought very interesting results. It is hoped that engineers will take into account the requirements of pelagic observations in the design of future submersibles.
Tipo: Text Palavras-chave: Pelagic environment; Zooplankton; Ecosystems; Deep water; Manned vehicles.
Ano: 1990 URL: http://archimer.ifremer.fr/doc/1990/acte-1152.pdf
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Utility of basic research in plant/crop physiology in relation to crop improvement: a review and a personal account Braz. J. Plant Physiol.
El-Sharkawy,Mabrouk A..
Agricultural research and development plays an essential role in a nation's economic development, providing for food security for an ever-increasing population. In developed countries, the gap between potential and actual yield is largely closed because of a combination of advanced technologies, high-yielding new varieties and the application of agrochemicals in highly mechanized production systems. In most of these countries, agricultural production exceeds national demand, resulting in excess products for export. In many of the developing countries, however, agricultural productivity is still far below what it should be because of multiple technical and socio-economic constraints. Food deficits are the norm in poor and middle-income countries, requiring...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agriculture; Breeding; C4-photosynthesis; Drought-tolerance; Ecophysiology; Ecosystems; Hormones; Photoperiod; Productivity; Soil; Water stress.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000400001
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Variations des teneurs en chlorophylle <a> et en sels nutritifs dans la lagune de l'Ichkeul OceanDocs
Chaouachi, B.; Ben Hassine, O. K.; Lemoalle, J..
Le suivi régulier des teneurs en chlorophylle a et en sels nutritifs dans la lagune de l'Ichkeul durant l’année 1993 a permis de mieux comprendre le fonctionnement de cet écosystème, milieu original et complexe. Les cycles annuels de la chlorophylle et des sels nutritifs montrent des fluctuations importantes, à l'échelle hebdomadaire. Les fortes biomasses phytoplanctoniques sont observées en hiver en période de courant sortant, en opposition avec les concentrations de phosphore réactif dissous qui ne sont notables que dans l’oued Tinja par courant entrant. Les nitrates et nitrites sont en concentrations plus irrégulières, sans saisonnalité marquée. La gamme des concentrations mesurées en 1993 a été comparable à celle observée lors des années précédentes.
Tipo: Journal Contribution Palavras-chave: Nitrites; Chlorophylls; Ecosystems; Nitrates; Phosphates; Phytoplankton; Nitrites; Ecosystems; Nitrates; Phytoplankton; Chlorophylls; Phosphates; Http://aims.fao.org/aos/agrovoc/c_5190; Http://aims.fao.org/aos/agrovoc/c_2482; Http://aims.fao.org/aos/agrovoc/c_5187; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_1577; Http://aims.fao.org/aos/agrovoc/c_35986.
Ano: 2001 URL: http://hdl.handle.net/1834/3701
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Visions for a Sea change, Report of the First Iinternational Workshop on Marine Spatial Planning OceanDocs
Ehler, Charles; Douvere, Fanny.
1 Introduction to the Workshop on Marine Spatial Planning 7 2 Introduction to Ecosystem-based, Sea Use Management 15 3 Ecosystem-based, Sea Use Management and Marine Spatial Planning 23 4 Key Scientific Issues for Ecosystem-based, Marine Spatial Planning 29 5 Legislation and Policy Framework for Marine Spatial Planning 35 6 A Process for Marine Spatial Planning 45 7 Defining the Human Dimension of Marine Spatial Planning 53 8 Implementing Marine Spatial Planning 57 9 Monitoring, Evaluating, and Adapting Marine Spatial Planning 65 10 Conclusions and Next Steps 71
Tipo: Report Palavras-chave: Marine sciences; Spatial analysis; Spatial information; Marine resources; Ecosystems.
Ano: 2006 URL: http://hdl.handle.net/1834/4464
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Water management in irrigated rice: coping with water scarcity International Rice Research Institute
Bouman, B.A.M.; Lampayan, R.M.; Tuong, T.P..
iv, 54 p. : ill.
Tipo: Technical Report Palavras-chave: Water management; Irrigated rice; Water supply; Irrigated systems; Plant water relations; Aerobic rice; Ecosystems.
Ano: 2007 URL: http://hdl.handle.net/10269/266
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Wetlands, agriculture and poverty reduction AgEcon
McCartney, Matthew P.; Rebelo, Lisa-Maria; Senaratna Sellamuttu, Sonali; De Silva, Sanjiv.
In many places, growing population, in conjunction with efforts to increase food security, is escalating pressure to expand agriculture within wetlands. The environmental impact of wetland agriculture can have profound social and economic repercussions for people dependent on ecosystem services other than those provided directly by agriculture. If wetlands are not used sustainably, the functions which support agriculture, as well as other food security and ecosystem services, are undermined. This report synthesizes findings from multidisciplinary studies conducted into sustainable wetland agriculture by IWMI and partners in Africa and Asia. It highlights the value of wetland agriculture for poverty reduction as well as the need for more systematic planning...
Tipo: Report Palavras-chave: Wetlands; Agriculture; Productivity; Ecosystems; Poverty; Food security; Farm Management; Food Security and Poverty; Productivity Analysis.
Ano: 2010 URL: http://purl.umn.edu/113010
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Wild and weedy rice in rice ecosystems in Asia - A Review International Rice Research Institute
Baki, B.B.; Chin, D.V.; Mortimer, M..
124 p. : ill. Ref (Limited proc.: no.2)
Tipo: Technical Report Palavras-chave: Wild relatives; Ecosystems; Weed control.
Ano: 2000 URL: http://hdl.handle.net/10269/134
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Yield and morphophysiological indices of irrigated rice genotypes in contrasting ecosystems. Repositório Alice
SANTOS, M. P. dos; ZANON, A. J.; CUADRA, S. V.; STEINMETZ, S.; CASTRO, J. R. de; HEINEMANN, A. B..
Rice phenology and development are events controlled by environmental and genetic factors, and the yield potential of the crop is defined by their interaction. This study aimed at analyzing the performance of irrigated rice genotypes in contrasting ecosystems and their effects on morphophysiological characteristics. Two ecosystems (tropical and subtropical) were analyzed, as well as cultivars recommended for tropical (BRS Catiana and BRS Jaçanã) and subtropical (BRS Pampa, BRS 7 Taim and IRGA 424) regions. The experiments were arranged in a complete randomized block design, with four replicates, being the factors the genotypes, sowing times and sites. The phenological development, biomass dynamics, radiation use efficiency and grain yield were evaluated....
Tipo: Artigo de periódico Palavras-chave: Ecofisiologia; Arroz irrigado; Oryza sativa; Época de semeadura; Radiação solar; Rice; Ecosystems; Ecophysiology; Sowing date; Solar radiation.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1075245
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Zoneamento agroecológico das terras do município de Uruará, Estado do Pará. Infoteca-e
REGO, R. S.; ROLLIN, P. A. M.; RODRIGUES, T. E.; CARVALHO, E. J. M.; GAMA, J. R. N. F.; SILVA, J. M. L. da; PERES, A. S. G.; PEREIRA, I. C. B..
Descrição geral da área. Metodologia. Suscetibilidade a erosão das terras. Níveis de possibilidades a mecanização das terras. Legenda de identificação, área e percentagem das classes de aptidão agroecológicas. Culturas indicadas para as principais classes de aptidão agroecológica. Recomendações gerais.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Uruará; Pará; Brasil; Agroclimatic zone; Environments.; Aptidão Agrícola; Ecossistema; Sensoriamento Remoto; Reconhecimento do Solo; Uso da Terra; Zoneamento Agrícola; Zoneamento Ecológico.; Amazonia; Ecosystems; Land use; Land suitability; Remote sensing; Soil surveys..
Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/388114
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Акватория и берега Севастополя: экосистемные процессы и услуги обществу IBSS Repository
Шадрин, Н. В.; Павлова, Е. В..
В монографии представлены результаты изучения современной экологической ситуации в акватории Севастополя. Рассмотрены также вопросы взаимосвязей функционирования экосистем и социально-экономического развития. Для экологов, экономистов, менеджеров, студентов и жителей Севастополя.
Tipo: Book Palavras-chave: Ecosystems; Scales; Models; Anthropogenic factors; Eutrophication; Ichthyoplankton; Phytoplankton; Zooplankton; Oil pollution; Litter; Mortality; Coastal zone; Biodiversity; Rivers; Zooplankton; Ecosystems; Scales; Models; Eutrophication; Rivers; Biodiversity; Phytoplankton; Anthropogenic factors; Mortality; Http://aims.fao.org/aos/agrovoc/c_15490; Http://aims.fao.org/aos/agrovoc/c_2482; Http://aims.fao.org/aos/agrovoc/c_6838; Http://aims.fao.org/aos/agrovoc/c_4881; Http://aims.fao.org/aos/agrovoc/c_2734; Http://aims.fao.org/aos/agrovoc/c_6617; Http://aims.fao.org/aos/agrovoc/c_33949; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_34996; Http://aims.fao.org/aos/agrovoc/c_4945.
Ano: 1999 URL: http://repository.ibss.org.ua/dspace/handle/99011/381
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Радиационная защита биосферы, включая Homo sapiens: выбор принципов и поиски решения IBSS Repository
Поликарпов, Г. Г..
Представлен итог рассмотрения основных аспектов этой проблемы. Предлагается развернутая формулировка радиационной защиты биосферы: "Защищенная от вредного действия ионизирующих излучений биосфера обеспечит радиационную безопасность и полноценную жизнеспособность человечества" или кратко: "Защищена биосфера - защищен и человек".
Tipo: Journal Contribution Palavras-chave: Радиоэкология; Радиационная защита; Ионизирующие излучения; Радиоактивность; Морская; Пресноводная и наземная биота; Экосистемы; Биосфера; Антропоцентризм; Экоцентризм; Экоэтика; Radioecology; Radiation protection; Ionising radiations; Radioactivity; Marine; Freshwater and terrestrial biota; Ecosystems; Biosphere; Anthropocentrism; Ecocentrism; Eco-ethics Ecosystems Biota Radioactivity Radioecology Radiation protection Ecosystems Biota Radioecology Radioactivity http://aims.fao.org/aos/agrovoc/c_2482 http://aims.fao.org/aos/agrovoc/c_930 http://aims.fao.org/aos/agrovoc/c_35784 http://aims.fao.org/aos/agrovoc/c_6426.
Ano: 2006 URL: http://repository.ibss.org.ua/dspace/handle/99011/264
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Устойчивость экосистем IBSS Repository
Заика, В. Е..
В аналитическом обзоре обсуждаются вопросы смены аспектов и подходов к проблеме устойчивости экосистем и сообществ за последние десятилетия. Рассмотрены вопросы определения устойчивости, аспекты и показатели устойчивости, различия в подходах к сообществам и экосистемам, связь устойчивости со структурой системы, практическая сторона экологической устойчивости.
Tipo: Journal Contribution Palavras-chave: Устойчивость сообществ и экосистем; Ecosystems; Ecosystems; Http://aims.fao.org/aos/agrovoc/c_2482.
Ano: 2007 URL: http://repository.ibss.org.ua/dspace/handle/99011/621
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Экологические процессы в критических зонах Черного моря (синтез результатов двух направлений исследований с середины XX до начала XXI веков) IBSS Repository
Зайцев, Ю. П.; Поликарпов, Г. Г..
Сделано обобщение, основанное на выдвинутых и развитых авторами представлениях за период с конца 1950-х по 2002 гг. в области морской нейстонологии, учения о контурных биотопах и сообществах в Черном море, радиоэкологии морских организмов, радиохемоэкологии и молисмологии Черного моря, а также на результатах применения новейших технологий (радиотрассерных, глубоководных в сероводородной зоне и других методов) и концептуальной модели хронического действия ядерных и неядерных факторов во всем возможном диапазоне их доз на черноморские экосистемы и на их живые компоненты. Представлена картина состояния экосистем и протекания экологических процессов в Черном море с учетом молисмологических факторов. Сформулированы рекомендации и прогнозы в отношении судьбы...
Tipo: Journal Contribution Palavras-chave: Черное море; Радиоэкология; Радиохемоэкология; Молисмология; Прогноз; The Black Sea; Radioecology; Radiochemoecology; Molismology; Ecosystems; Forecasts Radioecology Ecosystems Radioecology Ecosystems http://aims.fao.org/aos/agrovoc/c_35784 http://aims.fao.org/aos/agrovoc/c_2482.
Ano: 2002 URL: http://repository.ibss.org.ua/dspace/handle/99011/142
Registros recuperados: 196
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