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The discovery of wells of the linear pottery culture since 1990 has led to new insights on the ability and needs of humans at this time. The still small number of about 20 wells in Europe, compared to the much greater number of known settlements of this period, led to the assumption that they were built for special purposes, other than the water supply for the whole village. Investigations on the origin of archaeosediments of a more than 7000‐year‐old and 4.2 m deep well from the linear pottery culture in north‐west Saxony, Germany were carried out by geochemical analysis to improve our knowledge of the building, the usage and the decay of this wooden construction. Special emphasis was put on the material around two 10‐week‐old piglets that were intentionally deposited in the construction pit. Three major units—the sediment in the well, the infilling of the construction pit and the surrounding gravels—influenced by lateral transport of fine clay could be identified and described.  相似文献   
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Canadian national parks are well‐known for protecting natural areas dedicated to ‘the benefit and the enjoyment of the Canadian people’. The history of national parks illustrates the evolution of a concept of nature from functional conservation, such as tourism, to an environmental conception, based on ecosystem protection and biodiversity preservation. Banff, Waterton Lakes and Wood Buffalo National Parks in Alberta, and Kootenay National Park in British Columbia (four of the fourteen parks established before 1930, the year the National Parks Act was passed) have been chosen for this study in order to understand how national parks have dealt with local communities since the beginning of the national park movement, and how these relationships have changed during the last forty years. Inclusion of local communities and collaborative management processes have been well developed in northern Canadian parks since the mid‐eighties. These practices have been considered successful in this region, but the situation is very different in the southern parks, especially those that were created before 1930. However, things have changed since Aboriginal culture and rights have been recognized in judgements rendered by the Supreme Court of Canada and by the Canadian Constitution. In the four parks chosen for this study, involvement of local communities and the development of their participation have been slow. Round tables and participation in the creation of interpretation sites and exhibits of Aboriginal history can be considered a step toward further cooperation.  相似文献   
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This review focuses on Pekka Hämäläinen's characterization and analysis of the Comanche empire as a spatial category in The Comanche Empire and discusses how this work relates to broader discussions about space and power in borderlands and imperial histories. Although empires have long been central actors in borderlands histories, “empire” has not necessarily been a category of spatial organization and analysis and certainly not one used to describe spaces controlled by Native peoples. By contrast, while Hämäläinen emphasizes the imperial characteristics of the economic, political, and cultural dimensions of Comanche history (as other contributors to this forum discuss), he also uses “empire” to characterize Comanche dominance spatially. Hämäläinen helps us to rethink the spatial dynamics that both shaped and were produced by the encounters between Comanches and Spaniards, French, Mexicans, Americans, and other Native peoples in the Great Plains during the eighteenth and nineteenth centuries. By analyzing how Comanches came to control vast stretches of the southern plains, The Comanche Empire challenges our assumptions about how Native polities and imperial powers (and groups like the Comanches that Hämäläinen argues were both) thought about territorial claims and how they employed more nuanced spatial strategies to assert their authority, extend their cultural influence, and control trade and resources.  相似文献   
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