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| Registros recuperados: 222 | |
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| Hammond, David S; NWFS Consulting; dhammond@nwfs.biz; Zagt, Roderick J; Tropenbos International; Roderick.Zagt@tropenbos.org. |
| Systems devised for managing tropical forests sustainably have yet to prove successful. In many instances, they have fallen short of initial prospects, but the reasons for these shortfalls are often not apparent. Here, we explore factors that can shape the likelihood of success, collectively referred to as background conditions, which are not always adequately considered prior to selecting a suitable management system. We examine the ability of one background condition, geologic terrane, to explain crude spatial variation in a number of trailing indicators of varying forest land use. Forest areas on Precambrian and Phanerozoic terranes show significant differences in production of fossil hydrocarbons, gold, and tropical roundwood, among other indicators,... |
| Tipo: Peer-Reviewed article |
Palavras-chave: Enabling conditions; Tropical forest management; Geologic terrane; Climate; Sustainable development. |
| Ano: 2006 |
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| Jones, Chas E; International Arctic Research Center, University of Alaska Fairbanks; chas@chasjones.com; Kielland, Knut; Institute of Arctic Biology, University of Alaska Fairbanks; kkielland@alaska.edu; Hinzman, Larry D; International Arctic Research Center, University of Alaska Fairbanks; ldhinzman@alaska.edu; Schneider, William S; Oral History Department, University of Alaska Fairbanks; wsschneider@alaska.edu. |
| The integration of local knowledge and science represents an opportunity to enhance the understanding of interrelations among climate, hydrology, and socioeconomic systems while providing mutual benefits to scientists and rural communities. Insight from rural Alaskans helped to identify a social-ecological threshold used to model potential driftwood harvest from the Yukon River. Information from residents of Tanana, Alaska, was combined with scientific data to model driftwood harvest rates. Modeling results estimated that between 1980 and 2010, hydrologic factors alone were responsible for a 29% decrease in the annual wood harvest, which approximately balanced a 23% reduction in wood demand because of a decline in number of households. The... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Biomass; Climate; Driftwood; Economics; Flood; Hydrology; Large woody debris; Local knowledge; Participatory research; Social-ecological model; Threshold. |
| Ano: 2015 |
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| Walker, Brian; CSIRO Sustainable Ecosystems; Brian.Walker@csiro.au; Steffen, Will; ; Will.Steffen@dwe.csiro.au. |
| Global change is the net effect of individual and interactive effects of changes in land use, atmospheric composition, biological diversity, and climate. A synthesis of the past six years' activities of the Global Change and Terrestrial Ecosystems project of the IGBP (International Geosphere-Biosphere Programme) deals with global change effects as ecosystem responses and living with global change. Ecosystem responses are considered in terms of changes in function and vegetation composition/structure. Field experiments of elevated CO2 effects on aboveground biomass show, on average, a positive effect on biomass, ranging from -20% to +80%. Some early predictions of CO2 effects (C3 vs. C4 plants, N-fixers, C:N in litter) are not generally supported, and it... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Agriculture; Biomes; Carbon dioxide; Climate; Dynamics; Ecosystem functioning; Global change; Impacts; Land use; Terrestrial biosphere; Vegetation changes.. |
| Ano: 1997 |
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| Carpenter, Stephen R; Center for Limnology, University of Wisconsin-Madison; srcarpen@wisc.edu; Booth, Eric G.; Department of Agronomy, University of Wisconsin-Madison; Department of Civil and Environmental Engineering, University of Wisconsin-Madison; egbooth@wisc.edu; Gillon, Sean; Department of Food Systems and Society, Marylhurst University; Department of Forest and Wildlife Ecology, University of Wisconsin-Madison; sgillon@marylhurst.edu; Kucharik, Christopher J.; Department of Agronomy, University of Wisconsin-Madison; Nelson Institute Center for Sustainability and the Global Environment, University of Wisconsin-Madison; kucharik@wisc.edu; Loheide, Steven; Department of Civil and Environmental Engineering, University of Wisconsin-Madison; Loheide@wisc.edu; Mase, Amber S.; Department of Forest and Wildlife Ecology, University of Wisconsin-Madison; Mase@wisc.edu; Motew, Melissa; Nelson Center for Sustainability and the Global Environment, University of Wisconsin-Madison; Motew@wisc.edu; Qiu, Jiangxiao; Department of Zoology, University of Wisconsin-Madison; jqiu7@wisc.edu; Rissman, Adena R; Department of Forest and Wildlife Ecology, University of Wisconsin-Madison; ARRissman@wisc.edu; Seifert, Jenny; Center for Limnology, University of Wisconsin-Madison; JSeifert2@wisc.edu; Soylu, Evren; Department of Civil Engineering, Meliksah University; Nelson Institute for Sustainability and the Global Environment, University of Wisconsin-Madison; evrensoylu@gmail.com; Turner, Monica; Department of Zoology, University of Wisconsin-Madison; turnermg @ wisc.edu; Wardropper, Chloe B; Nelson Institute for Environmental Studies, University of Wisconsin-Madison; Wardropper@wisc.edu. |
| Agricultural watersheds are affected by changes in climate, land use, agricultural practices, and human demand for energy, food, and water resources. In this context, we analyzed the agricultural, urbanizing Yahara watershed (size: 1345 km², population: 372,000) to assess its responses to multiple changing drivers. We measured recent trends in land use/cover and water quality of the watershed, spatial patterns of 10 ecosystem services, and spatial patterns and nestedness of governance. We developed scenarios for the future of the Yahara watershed by integrating trends and events from the global scenarios literature, perspectives of stakeholders, and models of biophysical drivers and ecosystem services. Four qualitative scenarios were created to... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Alternative futures; Climate; Ecosystem services; Eutrophication; Governance; Lakes; Land-use change; Phosphorus; Scenarios. |
| Ano: 2015 |
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| McMillen, Heather L; University of Hawaiʻi at Mānoa; hmcmille@hawaii.edu; Ticktin, Tamara; University of Hawaiʻi at Mānoa; ticktin@hawaii.edu; Friedlander, Alan; National Geographic Society-Pristine Seas Project; University of Hawaiʻi at Mānoa; alan.Friedlander@hawaii.edu; Jupiter, Stacy D; Wildlife Conservation Society Fiji Country Program; sjupiter@wcs.org; Thaman, Randolph; University of the South Pacific; randolph.thaman@usp.ac.fj; Campbell, John; University of Waikato; j.campbell@waikato.ac.nz; Veitayaki, Joeli; University of the South Pacific; joeli.veitayaki@usp.ac.fj; Giambelluca, Thomas; University of Hawaiʻi at Mānoa; Nagoya University; thomas@hawaii.edu; Nihmei, Salesa; SPREP; salesan@sprep.org; Rupeni, Etika; IUCN/Locally Managed Marine Network; etika.rupeni@iucn.org; Apis-Overhoff, Lucille; University of the South Pacific; lu.overhoff@gmail.com; Aalbersberg, William; University of the South Pacific; william.aalbersberg@usp.ac.fj; Orcherton, Dan F.; Centre for Sustainable Technology and Development, Fiji National University; dan.orcherton@fnu.ac.fj. |
| Understanding how social-ecological systems are and can be resilient to climate change is one of the world's most crucial problems today. It requires knowledge at local and global scales, the integration of natural and social sciences, and a focus on biocultural diversity. Small Pacific Islands and the knowledge-practice-belief systems of their peoples have a long history of resilience to environmental variability and unpredictability, including in areas with marginal habitats and with periodic, severe disturbance (e.g., drought, flood, storms, and tsunami). We review the state of research on these knowledge systems as it pertains to resilience and adaptation, and we highlight critical research needs to address the interrelated areas of: (1) local-scale... |
| Tipo: Peer-Reviewed Synthesis |
Palavras-chave: Biocultural diversity; Climate; Customary; Indigenous and local ecological knowledge; Pacific Islands; Social-ecological resilience. |
| Ano: 2014 |
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| Palo, Thomas R; Mid-Sweden University; Thomas.palo@miun.se. |
| Tularemia is caused by the bacterium Francisella tularensis, but the natural reservoir is unknown and environmental conditions for outbreaks in mammals and man are poorly understood. The present study analyzed the synchrony between the North Atlantic Oscillation (NAO) index, the number of human cases of tularemia reported in Sweden, and the density of hares. Climate variation at a lag of 2 yr explained as a single factor ~ 27% of the variation in the number of tularemia cases over time. A low NAO index, indicating cold winters, and low water flow in rivers during the coming summer were associated with high numbers of human cases of tularemia 2 yr later. The number of mountain hares was not related to NAO or to the number of cases of tularemia. The change... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Tularemia; Climate; North Atlantic Oscillation index; Disease transmission; Global warming; Francisella tularensis; Lepus timidus. |
| Ano: 2005 |
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| Lindgren, Elisabet; Stockholm University; elisa@system.ecology.su.se. |
| Climatic changes are projected to alter the abundance, dynamics, and geographical distribution of many vector-borne diseases in human populations. Tick-borne diseases such as Lyme disease and tick-borne encephalitis (TBE) are a growing concern in northern Europe and the United States. The impact of a future climate change on the transmission of tick-borne diseases is not known. To make such assumptions, more empirical data are needed on the relations between short-term fluctuations in contemporary weather and disease incidence. This paper analyzes relations between daily minimum and maximum temperatures, monthly precipitation, and TBE incidence during a 36-yr period in Stockholm County, a high-endemic region for TBE in Sweden. Multiple regression analyses... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Encephalitis; Tickborne; Tickborne diseases; Temperature; Climate; Ticks.. |
| Ano: 1998 |
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| Filgueiras,Roberto; Oliveira,Vinicius M. R. de; Cunha,Fernando F. da; Mantovani,Everardo C.. |
| ABSTRACT One of the main factors that determine the success of decision-making in the fields is the climatic factor. This way, the geostatistical techniques have been used to represent and understand the spatial or temporal dynamics of meteorological parameters. Therefore, the aim of this research was to represent temporally through thematic maps, the average daily behavior for meteorological variables and the hydric balance for the municipality of Patos de Minas - MG. The climatic data were acquired from the automatic station INMET from the years 1990 to 2015. Later, it was calculated the evapotranspiration and the hydric balance for different capacities of available water in the soil (CAW): 24 mm, 48 mm, 80 mm and 112 mm. The climate variables showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climate; Geostatistical; Ordinary kriging; Thematic maps. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000500705 |
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| Körner,Christian. |
| Nearly forty percent of mankind depend in one way or another on mountain ecosystems. Local ecosystem services are slope stability, water yield, agricultural products or recreational value. Continental scale influences include drinking water supply, ground water recharging, irrigation water, hydroelectric power, flood control, traffic routes etc. In this paper I review evidence of alpine ecosystem responses to global change. It is emphasized that soil conservation is the centerpiece of any consideration of sustainable land use in alpine terrain. Complete vegetation cover of high biological diversity is essential to protect soils and secure `ecosystem services' in upland systems. It is illustrated that this is not necessarily in conflict with land use and... |
| Tipo: Journal article |
Palavras-chave: Altitude; Biodiversity; Climate; Conservation; Grazing; High elevation; Land use; Mountain. |
| Ano: 2000 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432000000100001 |
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| RICHE, G. R.; MANTOVANI, L. E.. |
| Trata sobre o municipio de Carica (SE): localizacao, extensao, populacao, clima, geologia, vegetacao, relevo, hidrografia, as unidades geo-ambientais, as grandes unidades de solos, os quadros agrario e agricola, recomendacoes e sugestoes complementares. Anexo: roteiro metodologico para o zoneamento geo-ambiental a nivel de municipio no Estado de Sergipe. |
| Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) |
Palavras-chave: Localizacao; Extensao; Sergipe; Carira; Relievo; Hydrography; Localization; Extension; Solo; Clima; Ecologia; Geologia; Hidrografia; População; Relevo; Vegetação; Climate; Ecology; Geology; Brazil; Population; Soil; Vegetation. |
| Ano: 1985 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133056 |
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| FALESI, I. C.. |
| A pesquisa foi realizada em áreas com pastos de idades diferentes, desde meses de idade (formação) ate 11 anos, tomando-se a área com floresta natural como elemento de comparação (testemunha). Foram coletadas amostras de solos de 0-20 cm em cada uma dessas áreas, alem da coleta de perfis pedagógicos ate a uma profundidade de 1,50 m. Apos a obtenção das analises no laboratório, constatou-se que vários nutrientes e índices ou valores, sofreram acréscimos quando o solo foi cultivado com pastagem, melhorando portanto, as suas propriedades químicas. Os elementos que mais se evidenciaram, foram: cálcio, magnésio, fosforo, alumínio, e os índices de pH, V (saturação de bases), S (soma de bases) e saturação de alumínio. Os quadros de analises e gráficos constantes... |
| Tipo: Séries anteriores (INFOTECA-E) |
Palavras-chave: Brasil; Sown pasture; Ecosystem; Fertility.; Clima; Ecologia; Ecossistema; Fertilidade; Geologia; Pastagem Cultivada; Topografia; Solo; Vegetação.; Amazonia; Ecology; Geology; Climate; Topography; Soil; Vegetation.. |
| Ano: 1976 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/385693 |
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| Registros recuperados: 222 | |
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