The Landscape Levels of Continents and Geographical Zonality

The traditional two-dimensional concept of latitudinal natural geographical zones is challenged on the ground that it ignores the altitude factor and differences in the character of the surface environment. An alternative three-dimensional model of zonal systems is proposed, in which so-called landscape levels corresponding to particular geomorphic levels are distinguished in terms of radiation balance and elevation. The zonal systems are combined into four worldwide groupings: (1) an inner terrestrial group corresponding to a rocky surface environment; (2) an outer terrestrial group corresponding to a cryogenic rocky environment; (3) an outer ice group, corresponding to ice-covered segments of the earth's surface, and (4) an oceanic group. The paper is devoted to the first three continental groups of zonal systems. The traditional zonality is found to be well expressed in the inner terrestrial group, but the outer groups reflect mainly Markov's law of polar asymmetry (see Soviet Geography, February 1964).     

The Ethnoarchaeology of Reptile Remains at a Lake Turkana Occupation Site, Kenya

The role of reptiles in hominid hunter–gatherer subsistence in Pleistocene Africa has been largely overlooked. This study examines the reptile component of a modern lake shore camp (site 20) assemblage of low archaeological visibility. Site 20, located on the eastern shore of Lake Turkana, has been observed from its creation to burial. The site is an ideal modern analogue for the interpretation of African prehistoric archaeological sites. Patterns of element loss, and patterns of bone modifications, namely burn, cut and slice marks, are examined. From this baseline data, three conclusions are drawn regarding the interpretability of reptile remains found at archaeological lakeside sites: (1) the MNI of crocodile remains at a site is likely to be similar to the original number of individuals which contributed to the deposited assemblage; (2) the MNI estimates of the turtle component will be much less than the original number of individuals in the deposited assemblage; and (3) patterns of bone modifications can be related to hominid food procurement and processing activities.     

明代至清初贵州交通沿线的植被及石漠化分布的探讨

利用明清方志、游记、朱批奏折,以"移步换景"的视角,考察明代至清初贵州交通沿线的植被分布及变迁,并从石漠化地表景观、石漠化敏感性影响因子及与今日石漠化分布现状的对比等角度解读文献中所见的石漠化现象。结论认为,明末清初今贵州安顺、镇宁、六枝、盘县、普安等地已产生石漠化现象。     

贵州民国档案中所见“疑似石漠化”与今日石漠化分布状况的比较研究

通过对贵州省民国时期档案与相关资料的分析,依据各县"不能生产之石山"占该县总面积的百分比,把相关39县划分为四个程度不同的"疑似石漠化"地区:重度石漠化地区(≥50%)、中度石漠化地区(<50%≥20%)、轻度石漠化地区(<20%≥5%)和无明显石漠化地区(<5%)。民国时期,毕节地区东部、安顺市、黔西南地区、铜仁及其周边地区的石漠化现象最为严重,除了铜仁及其周边地区,其他地区的石漠化状况与今日的吻合。民国时期石漠化严重程度与人口密度分布呈正相关,反映人类活动是石漠化扩张的主要原因。民国时期石漠化严重地区与碳酸盐岩的分布高度吻合,反映了石漠化的自然成因。     

Large-Area Remote Sensing Coverage of Archaeological Sites with a Dual-Track Cart-Mounted Cesium Magnetometer

Abstract

This paper describes the benefits of collecting total field magnetic data at archaeological sites with a mobile cart holding two cesium magnetometer sensors and a separate stationary base station magnetometer to correct for global-scale magnetic fluctuations. To date, the Texas Historical Commission has surveyed 40 sites from various time periods and geographical settings in Texas. The cart has allowed rapid surveys over large areas while minimizing signal-degrading noise. Four examples from Texas show that large-area and high-density magnetic surveys can be completed in relatively short periods of time producing maps that aid significantly in archaeological site interpretation. In some instances, no field excavation was required to understand quickly what the magnetic patterns represented in terms of buried archaeological features. In all cases, the magnetometer maps provided important information to help guide future field excavations.     

Investigating absence: Assessing the cumulative effects of casual collecting at a 19th century Bahamian plantation

Abstract

Recent archaeological work at Prospect Hill, a 19th century plantation in the Bahamas, revealed artifact patterns that are inconsistent with expectations for a plantation site. The quantity and quality of artifacts in residential areas associated with the planter family and the enslaved population were inverted and suggest significant post abandonment changes. The site of Prospect Hill has been a destination for tourists and student groups since the mid-20th century, and the areas of the site most accessible to these visitors are also those with surprisingly low artifact counts. I investigated the possibility that regular visitation involved casual collecting using historical data as well as artifact assemblages from archaeological work at Prospect Hill. My analysis suggests that the archaeological record has been altered significantly through casual, opportunistic collecting, and it offers insights for identifying casual collecting elsewhere.     

MARINE RESOURCES IN THE MESOLITHIC AND NEOLITHIC AT THE GROTTA DELL’UZZO (SICILY): EVIDENCE FROM ISOTOPE ANALYSES OF MARINE SHELLS*

Oxygen isotopes in shell carbonate samples from the marine rocky‐shore intertidal gastropod Monodonta turbinata (Born) are investigated in both modern analogue specimens and in archaeological specimens from the Grotta dell’Uzzo (Sicily). Variations in shell edge values of δ¹⁸O in living specimens collected monthly over two years are closely correlated with monthly seawater temperatures measured at the time of collection, showing that the species can be used for palaeoseasonality studies. Analyses of shell edge δ¹⁸O values in archaeological specimens, from Mesolithic through to early Neolithic phases at the Grotta dell’Uzzo, enabled the inference of various seasons of collection of shellfish and how such seasonality varies between the different phases of occupation. Interesting similarities and differences exist between the seasons of marine shellfish exploitation and the seasons inferred from the vertebrate zooarchaeological assemblages. A major inference drawn from the analyses and discussion is that the exploitation of all marine resources (fish and shellfish) increased in the later Mesolithic and early Neolithic periods.     

蓬莱阁丹崖山岩体加固保护技术研究

探讨了我国大型古建筑群的基础岩体出现裂隙、破碎带、危岩体、负地形、崩塌、滑坡等相关病害成因,介绍了水平锚杆加固危岩体技术、斜锚杆加固海蚀洞技术、喷锚挂网处理表层破碎带技术、锚索加固城墙、表面作旧保护特色地貌等技术的研制和实施。     

Selection and Exploitation of Macro‐Vertebrate Resources During the Upper Palaeolithic in Northern Spain. New Evidence from Coímbre Cave (Peñamellera Alta,Asturias)

The exploitation of ungulates in the Cantabrian region during the Upper Palaeolithic is characterized by the appearance of progressively specialized hunting strategies, especially during the Magdalenian. This specialization focused on either Iberian ibex or red deer, depending on environmental or topographic features. Red deer, for instance, was hunted mostly on the plains while ibex and/or chamois was hunted in rocky and mountainous areas. Here we present new zooarchaeological and taphonomic evidence from Coímbre cave (northern Spain), a site located in the rugged region between the Picos de Europa and Sierra del Cuera (Asturias) which has evidence for specialized ibex hunting. We discuss the possible reasons for such a selective hunting pattern. While the predominance of mountain species such as Iberian ibex or chamois in the Magdalenian levels suggests prey selection based on topographic or environmental criteria, the predominance of large bovids in the Gravettian level could imply that other alternatives were available. We also provide evidence of a pattern of rabbit exploitation which is unusual by comparison with other Upper Palaeolithic sites of northern Spain, and which taphonomic evidence suggests was due to human activity.     

Mediterranean Movements and Constituent Political Spaces: An Interview with Sandro Mezzadra and Toni Negri

These conversations between Toni Negri and Sandro Mezzadra (November 2014–October 2015) focus on the politics of Mediterranean boundaries and situate migratory movements across the Mediterranean in the geopolitical context of the Eastern and Southern shore. Looking at the proliferation of wars around the Mediterranean region and reflecting on the legacy of the Arab Uprisings, Mezzadra and Negri revisit the concept of the “autonomy of migration” and critically interrogate its possible contribution to the field of migration and in terms of the current refugee crisis.     

The role of labrid fish in prehistoric economics in New Zealand

Labrids are one of the most common types of fish to occur in inshore rocky marine habitats in New Zealand. There are major discontinuities in their relative abundance in archaeological sites from different regions of New Zealand, and these are difficult to reconcile with known distributional patterns. A number of possible explanations are examined such as changes in fishing technology and various ecological factors. It is concluded that the reasons for these observed fluctuations may vary considerably from one case to another, but where large numbers were caught by prehistoric people who had access to alternative fish resources, unreliability of some major aspect of the economy may be inferred. A combination of poor sea conditions and marginal horticulture is likely to increase the importance of labrid fish.     

An Iroquois frontier: the north shore of Lake Ontario during the late seventeenth century

Historical accounts and assessments of Lake Ontario's north shore during the late seventeenth century generally describe the area as an abandoned battleground and devasted “no-man's land”. The impression is built of English and particularly French views that this was an area no longer useful as a major source of furs. To the Iroquois the land was anything but devastated. Whereas they bypassed the territory in their constant search for furs to the north and west, the north shore, strategic and fertile, became a trading, agricultural, and even settlement frontier. A reassessment of the written documents and largely neglected maps of the period suggest that the Iroquois occupation of the north shore was highly ordered and based on traditional trade routes and tribal territorial claims. It was an extension of the homeland. But innovations in subsistence, settlement, and lifestyle did occur. The study of expansion to the north shore provides valuable insights into the delicate balance between the forces of change and continuity in post-contact Iroquois society.     

Field Measurements of Wave Characteristics on a Near‐Horizontal Shore Platform,Mahia Peninsula,North Island,New Zealand

Waves are an important process responsible for the initiation and subsequent development of intertidal shore platforms. However, few field studies to date have described wave processes on shore platforms. A field experiment was conducted using an across‐shore array of wave gauges, including a directional sensor, on a near‐horizontal platform at Mahia Peninsula, North Island, New Zealand. Results show that the platform is very efficient in filtering wave energy at gravity wave frequencies (>0.05 Hz), with 40–80% reduction in wave height measured across the 140 m wide platform. By contrast, infragravity waves are present on the platform and increase in magnitude towards the cliff toe. Directional wave analysis indicates that wave reflection is mainly restricted to infragravity wave frequencies, demonstrating the differences in gravity and infragravity wave behaviour on the platform studied. Results indicate that, under fair weather conditions, the role of waves as an agent of cliff toe erosion is likely to be limited at present, although they are probably important for removing sediments accumulated at the cliff toe. The observed increase in infragravity wave energy towards the cliff toe implies that these long‐period waves may be important geomorphic agents on shore platforms.     

Museums and the History and Heritage of British Motoring

This paper has been developed from a research project 1 that was directed at understanding the changes taking place in the curatorial attitudes towards the location and use of motor-cars in museums. It identifies the key issues regarding the patterns of representation, collecting and questions of national policy. In this process the paper considers the ways in which new meanings are being attached to collections, and the extent to which narratives are obscuring an understanding of the objects and increasing the tensions between the history and heritage of British motoring.     

The palaeogeography and Neolithic archaeology of Herm in the Channel Islands

Abstract

The small Channel Island of Herm combines several distinct habitats ranging from steep rocky coasts and a rolling upland plateau in the south to a dune-fringed sandy lowland in the north. Where upland and lowland meet, a line of megalithic tombs constitutes the island’s most striking archaeological feature. Four seasons of fieldwork (2008–2011) have sought to determine the environmental history of northern Herm since the last glacial period and to place the tombs within the broader context of Neolithic activity. A series of trenches and boreholes has revealed the changing morphology of the prehistoric land surface that lies buried beneath the extensive deposits of aeolian sand that cover this part of the island. Results indicate that much of the lowland plain was initially occupied by a shallow marine inlet that was cut off from the sea and progressively infilled starting in the 4th millennium b.c. Pollen and soil sequences reveal how the wooded early Holocene landscape around the edges of this inlet was steadily degraded by human impact and climate. Traces of settlement and cultivation (plowmarks) suggest the megalithic tombs were situated within an agricultural landscape. This finding has relevance for theories that have proposed that islands were favored places for burial by communities visiting from the neighboring mainland. Herm was a locus for settlement and farming as well as for burial during the Neolithic period.     

清代离宫御苑中的太后寝宫区建筑初探

本文在文献搜集的基础上,对清代畅春园、避暑山庄、圆明园、颐和园等主要离宫中太后寝宫的形制、功能进行探讨,以期初步揭示这种重要的皇室生活空间的基本特点。     

Woodland Pottery Function,Cooking, and Diet in the Upper Great Lakes of North America

A multidimensional approach to functional analysis was employed to examine pottery use, cooking, and subsistence in pre-European North American contexts. A variety of analytic techniques were applied to ceramic assemblages from two sites on the south shore of Lake Superior: the Middle Woodland Naomikong Point site and the Late Woodland Sand Point site. The analyses of both technical attributes and use-alteration traces suggest that a majority of pottery vessels from these sites were used for cooking throughout the Woodland period. Lipid residue analysis corroborates traditional subsistence information but specifies which foods were cooked in pottery vessels. Vessel size varies according to context rather than by time or by function, with larger vessels associated with ritual areas and smaller vessels originating from domestic spheres, a trend potentially related to feasting behavior. Interior carbonization patterns change in frequency between the Middle and Late Woodland periods, suggesting a shift in cooking and possibly subsistence practices.     

The Poor Man’s Goldmine?

This article analyses the career paths of Swedish and Finnish sailors from the mid-19th to the mid-20th century. The article shows that, for the most of the men, the seaman’s occupation was just a passing phase before taking up a job on shore, but many of them also created a long-lasting and advancing career by going to sea. There was not necessarily, however, a clear distinction between job opportunities at sea and those on shore in those days: men worked both at sea and on shore. We therefore argue that an individual’s advancement in a maritime career was a context-specific socio-economic phenomenon. In Scandinavia, work on board ships was dependent on features that characterized the division of labour in a predominantly agricultural domestic economy on land and emerging industrialization during the turn of the century. Here we present an analysis of the career paths of almost 60,000 men recruited to serve on Swedish and Finnish merchant vessels from the 1840s to late 1940s.     

Two‐regime Pattern in Human Mobility: Evidence from GPS Taxi Trajectory Data

Research on complex systems has identified various aggregate relationships in phenomena that describe these systems. Travel length has been characterized by negative power distributions. Controversy, however, exists over whether mobility patterns can be modeled in terms of a simple power law (Lévy flight model) or that more complicated power laws (exponential power law, truncated Pareto) are required. This study concentrates on two issues: testing the validity of exponential power laws and truncated Pareto distributions in urban systems to describe aggregate mobility patterns, and examining differences in mobility patterns for different travel purposes. The article describes the results of an analysis of Global Positioning System (GPS) taxi trajectory data, collected in Guangzhou, China, to identify mobility patterns in the city. The least squares statistic is used to estimate the parameters of the distribution functions. Results suggest that a fusion of functions, based on an exponential power law and a truncated Pareto distribution, represents the travel time distribution best. Moreover, the findings of this study indicate different mobility patterns to exist for different travel purposes.