993 resultados para 7140-221
Resumo:
This study investigates the landscape evolution and soil development in the loess area near Regensburg between approximately 6000-2000 yr BP (radiocarbon years), Eastern Bavaria. The focus is on the question how man and climate influenced landscape evolution and what their relative significance was. The theoretical background concerning the factors that controlled prehistoric soil erosion in Middle Europe is summarized with respect to rainfall intensity and distribution, pedogenesis, Pleistocene relief, and prehistoric farming. Colluvial deposits , flood loams, and soils were studied at ten different and representative sites that served as archives of their respective palaeoenvironments. Geomorphological, sedimentological, and pedological methods were applied. According to the findings presented here, there was a high asynchronity of landscape evolution in the investigation area, which was due to prehistoric land-use patterns. Prehistoric land use and settlement caused highly difIerenciated phases of morphodynamic activity and stability in time and space. These are documented at the single catenas ofeach site. In general, Pleistocene relief was substantially lowered. At the same time smaller landforms such as dells and minor asymmetric valleys filled up and strongly transformed. However, there were short phases at many sites, forming short lived linear erosion features ('Runsen'), resulting from exceptional rainfalls. These forms are results of single events without showing regional trends. Generally, the onset of the sedimentation of colluvial deposits took place much earlier (usually 3500 yr BP (radiocarbon) and younger) than the formation of flood loams. Thus, the deposition of flood loams in the Kleine Laaber river valley started mainly as a consequence of iron age farming only at around 2500 yr BP (radiocarbon). A cascade system explains the different ages of colluvial deposits and flood loams: as a result of prehistoric land use, dells and other minor Pleistocene landforms were filled with colluvial sediments. After the filling of these primary sediment traps , eroded material was transported into flood plains, thus forming flood loams. But at the moment we cannot quantify the extent ofprehistoric soil erosion in the investigation area. The three factors that controlled the prehistoric Iandscapc evolution in the Ioess area near Regensburg are as follows: 1. The transformation from a natural to a prehistoric cultural landscape was the most important factor: A landscape with stable relief was changed into a highly morphodynamic one with soil erosion as the dominant process of this change. 2. The sediment traps of the pre-anthropogenic relief determined where the material originated from soil erosion was deposited: either sedimentation took place on the slopes or the filled sediment traps of the slopes rendered flood loam formation possible. Climatic influence of any importance can only be documented as the result of land use in connection with singular and/or statistic events of heavy rainfalls. Without human impact, no significant change in the Holocene landscape would have been possible.
Resumo:
Consultoria Legislativa - Área VII - Finanças, Direito Comercial, Direito Econômico, Defesa do Consumidor - Área XI - Meio Ambiente, Geografia, Urbanismo, Arquitetura.
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A nova Constituição e a melhoria do transporte coletivo. Cidadãos falam do transporte em Curitiba. Roberto Requião, prefeito de Curitiba, explica as melhorias do transporte coletivo na cidade e sugere que a Constituição garanta maior controle público sobre as frotas. Afonso Camargo (PMDB-PR) relata que é preciso o vale transporte para garantir o transporte público bom e barato. O substitutivo do Relator da Assembleia Nacional Constituinte (ANC) Bernardo Cabral garante eleições para governador do Distrito Federal. Mas o Presidente da República José Sarney considera que o Distrito Federal deve ter um prefeito nomeado. Cidadãos opinam sobre o tema. Bancada do Distrito Federal unida em favor das eleições. O Deputado Walmir Campelo (PFL-DF) informa que a eleição para governador é uma conquista que não pode ser alterada. O Deputado Sigmaringa Seixas (PT-SP) afirma que a tese de autonomia para o Distrito Federal conquistou os constituintes e que a opinião do Presidente não vai prevalecer. Rex Nazaré, Presidente do Conselho Nacional de Energia Nuclear, debate com os constituintes do Nordeste e Norte o uso pacífico da energia nuclear para resolver problemas como irrigação, conservação de alimentos e maior produção agrícola. O Deputado Jalles Fontoura (PFL-GO) declara que esse tipo de aplicação moderna da energia nuclear é perfeitamente viável. O Deputado Albérico Cordeiro (PFL-AL) opina sobre a questão.
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Analisa as disposições contidas nas Portarias Interministeriais nºs 221 e 222, editadas em 18 de junho último pelo Governo Federal. Essas portarias regulamentam procedimentos preparatórios à execução de emendas individuais da Lei Orçamentária Anual (LOA) de 2015, sujeitas ao regime de execução obrigatória (“orçamento impositivo”), instituído na Lei de Diretrizes Orçamentárias de 2015 (LDO 2015 – Lei 13.080/2015) e, posteriormente, na Emenda Constitucional 86.
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OS/22·1是当今客户/服务器计算模式的首选操作系统之一。本文对IBMOS/22·1操作系统所具备的,对客户/服务器计算模式的各种支持功能作了详细的介绍。
Resumo:
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