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31.
The aim of this paper is to apply kernel density estimates (KDEs) to the visualization and interpretation of lead isotope data from bronze assemblages found along the northern border of central China, here designated as the Arc. New lead isotope analyses of 30 leaded tin–bronze artefacts from the Wangdahu cemetery (c.500–300 bc ) in the Ningxia Hui Autonomous Region, north‐west China, provide the basis for the discussion. By using multivariate KDEs and the calculated likelihood of the overlap, the present work shows that the Wangdahu objects feature a unique linear array of isotope ratios, representing an important element of overall bronzes from the Arc in the first millennium bc . This characteristic isotope signature is fundamentally different from that of Dajing ores in north‐east China, as well from that of early Qin bronzes in Shaanxi and Gansu provinces. This suggests that a variety of metal resources were utilized by peoples living in the Arc. The KDE approach thus proves effective at presenting and comparing lead isotope data.  相似文献   
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Contingency,Realism, and the Expansion Method   总被引:1,自引:0,他引:1  
This paper examines the relationship between scientific realism and the expansion method. The frame of reference for our investigation is their joint conceptualization of “contingency.” We first explore the varied historical meanings of contingency; this is followed by a survey of its differential deployment within geographic thought. Attention then turns to theorizations of contingency in realism and the expansion method. The final portion of the paper assesses the potential for integrating these two analytic traditions within geographic research.  相似文献   
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Xiaoshan in Zhejiang Province was an important ceramic production area in ancient China. During recent years, local archaeologists have found a number of mound tombs dating to the Zhou Dynasty and the Spring and Autumn period. Many shards of stamped stoneware and proto‐porcelain have been unearthed from these tombs. In this paper, we report how we collected ceramic shards from tombs and samples from local ancient kilns as reference materials in order to clarify their relationship. We have used the energy‐dispersive X‐ray fluorescence technique to analyse the chemical composition of the ceramic samples. The results indicate that some of the tomb artefacts may be imported from other production areas. We infer that the other tomb samples were produced at local kilns, but due to production process–related compositional differences, there are small differences in chemical composition between different categories of samples.  相似文献   
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Located in the Central Plains of China, the early Xia Dynasty site of Xinzhai (2050 BC–1750 BC) with large archaeological features and exquisite artifacts of jade and copper is pivotal for probing the origin and formation of Chinese civilisation. Here, stable isotope ratios analysis, supplemented by zooarchaeological results, was used to investigate the exploitation and management of animals utilised by humans. It was demonstrated that a diverse pattern of animal raising and exploitation was present at the Xinzhai site. The domestic pigs were fed with substantial amounts of millets or their byproducts to guarantee a food source for the dietary demands of the humans. Dogs were also found to have consumed large amounts of C4 protein sources, likely in the form of human food scraps or leftovers. The domestic herbivores, sheep and cattle, showed different dietary characteristics in that the former mainly grazed in the natural environment, while the latter species were fed with large amounts of C4 products. This intra‐species variation was somewhat related to their physiological characteristics but seems to have been more determined by their different status in social and ritual activities. Thus, this research at Xinzhai provides a glimpse of the organisation of animal resources during the initial formation of Chinese civilisation. Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   
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Noel Castree 《对极》2000,32(4):494-499
The practice of restoration ecology (the creation and restoration of ecosystems) has important implications for theorizing nature in the traditions of O'Connor's 'capitalized nature,' Haraway's hybrid socionatures, and other recent work in poststructural approaches to political ecology. The prominent US environmental discourse of 'no net loss of wetlands' has spurred the rapid expansion of restoration practices, which promise to open a new frontier in the commodification and capitalization of nature. Through wetland mitigation and banking, restoration science is representing entire ecosystems as abstract, mobile, and fungible entities; however, a simple reading of a restored landscape as fully capitalized is unsatisfactory. Close attention to the wetland commodification process reveals two important points: 1) the commodification and capitalization of nature is never automatic; rather, the crucial steps of abstraction and valuation are composed of negotiations between and within differentiated segments of the state and civil society, in which there are many spaces for resistance; and 2) the materiality of restoration sites provided important challenges to the commodification process, which are not contemplated within critical approaches to nature as currently constituted. The transformation of restoration sites into sites of commodity provision is incomplete at best. A major challenge for poststructural political ecology will be to specify ecological phenomena and their important role in the social construction of material environments, without falling into an ontological commitment to the primacy of ecological data.  相似文献   
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