Tropical Rain Forests
Mostrando 37-46 de 46 artigos, teses e dissertações.
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37. Forests, timber and dwellings : energetic and environmental analysis of wood production and utilisation as a contribution to the challenge of theAmazonian Rain Forest Valuation / Florestas, madeira e habitações : analise energetica e ambiental da produção e uso de madeira como uma contribuição ao desafio da valorização da Floresta Amazonica
This work carries out an energy consumption and CO IND. 2 emissions assessment on the production chain of three supplying systems for timber use in residential buildings: (1) timber obtained from the management of native forest; (2) timber obtained from the predatory extraction of native forest and (3) timber from eucalyptus plantations. The energetic sustai
Publicado em: 2001
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38. Estudo das radiações solar e terrestre acima e dentro de uma floresta tropical úmida / Solar and terrestrial radiation above and inside a tropical rain forest
In a micrometeorological experiment accomplished during the campaign WETAMC/LBA (from 26/01 to 10/03/1999) measurements of solar and terrestrial radiation were made on a tropical forest environment, at Biological Reservation of Jaru- RO (10° 05 S; 61° 56 W). Data of incident and reflected solar global radiation flux were collected using pyranometers, incid
Publicado em: 2001
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39. Estudo das radiações solar e terrestre acima e dentro de uma floresta tropical úmida / Solar and terrestrial radiation above and inside a tropical rain forest
Em um experimento micrometeorológico realizado durante a campanha WETAMC/LBA (de 26/01 a 10/03/1999) realizaram-se medidas de radiação solar e terrestre em ambiente de floresta tropical de terra firme na Reserva Biológica do Jaru- RO (10o05 S; 61o56 W). Coletaram-se dados de fluxo incidente e refletido de radiação de solar global usando piranômetros,
Publicado em: 2001
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40. Fatores Formadores da Paisagem Litorânea: A bacia do Guaratuba, São Paulo-Brasil / FORMATION FACTORS OF THE COASTAL LANDSCAPE: THE CASE OF THE GUARATUBA WATERSHED, SÃO PAULO, BRAZIL.
This study aims to characterize and correlate elements of the biotic-physical environment, drainage, geology, landform, vegetation cover, soil and land use by means of interpretation of aerial photographs, satellite images and field work. It also aims to test the technique of circular sampling the drainage network for identifying soil mapping units in the Se
Publicado em: 1999
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41. Avaliacao de dados obtidos pelo TM Landsat para implantacao de projetos de colonizacao de microrregiao do Alto Purus Estado do Acre / Evaluation of data obtained from the Landsat thematic mapper for implementation of colonization projects of the microregion of the Upper River, Eastern Acre State
Neste trabalho avaliou-se o potencial das imagens do TM LANDSAT para o levantamento de informacoes relativas a drenagem e vegetacao, na Microrregiao do Alto Rio Purus, Estado do Acre. Nesta area vem ocorrendo um intenso processo de ocupacao do solo pela implantacao de projetos de colonizacao. As informacoes sobre a drenagem e a vegetacao constituem dados imp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/09/1985
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42. Avaliacao de dados obtidos pelo TM Landsat para implantacao de projetos de colonizacao de microrregiao do Alto Purus Estado do Acre / Evaluation of data obtained from the Landsat thematic mapper for implementation of colonization projects of the microregion of the Upper River, Eastern Acre State
The potential use of the TM LANDSAT imagery to obtain information concerning drainage and vegetation in the Microregion of, the Upper Purus River, eastern Acre State, is evaluated in this study. An intense occupation process has taken place in this area by means of the establishment of several settlement projects. The information concerning both the drainage
Publicado em: 1985
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43. Dynamics and species richness of tropical rain forests.
We present a worldwide analysis of humid tropical forest dynamics and tree species richness. New tree mortality, recruitment, and species richness data include the most dynamic and diverse mature tropical forests known. Twenty-five sites show a strong tendency for the most species-rich forests to be dynamic and aseasonal. Mean annual tree mortality and recru
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44. Guatemalan forest synthesis after Pleistocene aridity
Sediments from two lakes in the Peten Department, Guatemala, provide palynological evidence from Central America of late Pleistocene aridity and subsequent synthesis of mesic forests. Late Glacial vegetation consisted of marsh, savanna, and juniper scrub. An early Holocene temperate forest preceded a mesic tropical forest with Brosimum (ramon). Thus “prime
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45. Tropical rain forest tree growth and atmospheric carbon dynamics linked to interannual temperature variation during 1984–2000
During 1984–2000, canopy tree growth in old-growth tropical rain forest at La Selva, Costa Rica, varied >2-fold among years. The trees' annual diameter increments in this 16-yr period were negatively correlated with annual means of daily minimum temperatures. The tree growth variations also negatively covaried with the net carbon exchange of the terrestria
The National Academy of Sciences.
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46. Contributions of Atmospheric CO and Hydrogen Uptake to Microbial Dynamics on Recent Hawaiian Volcanic Deposits†
A series of sites were established on Hawaiian volcanic deposits ranging from about 18 to 300 years old. Three sites occurred in areas that supported tropical rain forests; the remaining sites were in areas that supported little or no plant growth. Sites >26 years old consumed atmospheric CO and hydrogen at rates ranging from about 0.2 to 5 mg of CO m−2 da
American Society for Microbiology.