Partial Solutions to Partially Understood Problems — The Experience of In Situ Monitoring and Preservation in Somerset’s Peatlands

Abstract

The peat moors of lowland Somerset contain a wealth of waterlogged archaeological sites, including some of the most significant prehistoric monuments in the country. There has been a long history of attempts to preserve archaeological sites in situ and monitoring of the burial environment began in 1982. The monitoring has become more complex over time, but the results suggest the same continuing problem of a drop in the water table over the summer months across the whole landscape. With the sole exception of the portion of the Neolithic Sweet Track that benefits from an irrigation system, all the other known sites remain at risk of gradual destruction. The solutions must be found on a landscape scale using agri-environment payments to secure sustainable management of the peat resource. Unfortunately, short-term changes to these payments and long-term changes to the climate are likely to worsen the situation and eventually to require a more drastic solution to the problem. Evidence has been generated to support an ecosystems approach to sustainable peatland management.     

The political ecology of water memory: Contending narratives of past hydraulic infrastructures in Barcelona (2015–2021)

In the context of ecological emergency and crisis of representation of the capitalist democracy, the battles over water management have become ever more politicised: who is to administer water resources, how, and with what legitimacy? This article examines a disregarded dimension of the recent water conflict in Barcelona by looking into the politics of memory as part of a struggle for legitimacy between the private water company Agbar, and Barcelona en Comú (BeC), the political platform governing the city since 2015, and defending the ‘remunicipalisation’ of water. By combining memory studies and critical discourse analysis we pay attention to the dynamic resignification of the hydraulic infrastructure as spaces or “sites of memory” (lieux de mémoire; Nora, 1998). Barcelona en Comú narrative retrieves a forgotten past of local sites and experiences in public management of water. In contrast, Agbar defends its legitimacy by advancing a narrative of linear progress and social inclusion that re-signifies its 150-year long history and co-opts key “empty signifiers” (Laclau, 2005) from the discourse of the Indignados and BeC. Theoretically, we advance that a temporal turn in political ecology and geography, complementing the concern with spatiality, could usefully draw on memory studies to analyse the growing memorialization of water discourses and sites, as well as their political significance. The article thus investigates a question that has not been systematically explored by political ecologists: how the entanglement of space and historical memory is mobilized in the conflict over the use and management of the environment.     

UNESCO World Heritage Site of Lenggong Valley,Malaysia: A Review of its Contemporary Heritage Management

This article reviews contemporary heritage management through a systematically coded content analysis at one of Malaysia’s UNESCO World Heritage Sites: the Archaeological Heritage of the Lenggong Valley (AHLV). It evaluates the competency of the preliminary Conservation Management Plan (CMP) of AHLV by looking at the accuracy of five distinctive dimensions of the CMP in conveying the information about the sites and management objectives: the legislation related to the heritage conservation and management; the action and implementation of the management strategies; the level of stakeholder’s participation; and, finally, how the CMP integrates local values and ideas into management planning. The results show that contemporary heritage management planning at Lenggong Valley tends to prioritize the conservation of the archaeological values of the sites over other values (i.e. social, historical, and aesthetic values), and that planning has largely been in the hands of governmental agencies with limited involvement from local communities in the decision-making process.     

Obsidian procurement,least cost path analysis,and social interaction in the Mimbres area of southwestern New Mexico

For over 15 years chemical compositional analyses of obsidian artifacts recovered from archaeological sites in the southwestern United States have been increasingly used to address many research agendas. Despite this increasing interest in obsidian studies, few have attempted to synthesize the ever-growing amount of data generated from the numerous projects being conducted in the southwest. Here, we synthesize and present data for 923 sourced obsidian samples recovered from over 80 archaeological sites in the Mimbres area of southwestern New Mexico. We then use least cost path analysis as a means of investigating procurement patterns as well as networks of social interaction within the region.     

Storied Lines: Network Perspectives on Land Use in Early Modern Iceland

It is a truism nowadays to say that an archaeological site is embedded in extensive networks of relations. Connectivity has played a role in archaeological thinking for a considerable amount of time, and the adoption by archaeologists of both theoretical and methodological frameworks centring connectivity has become widespread. One such example is network analysis, which has seen a significant surge in interest within the field over the past two decades. Archaeological network analysis is far from a mature science, however, and the character of the archaeological record tends to yield networks with richly contextualised nodes connected by ties that, in stark contrast, are often based on very limited evidence for connectivity. Furthermore, archaeological networks are often accompanied by limited discussion about the implications for a connection between two sites interpreted through a commonality in material culture. In particular, the use of historical records to contextualise the interactions between sites remains somewhat uncommon. This paper takes an archaeo-historical network perspective by characterising land-use practices in early modern Iceland by mapping property records describing relations of ownership, resource claims and social obligations alongside comprehensive field archaeological surveys as extensive networks of interdependence between the known farmstead sites occupied at the time. This approach shows that these vibrant networks, documented both spatially and historically, regularly show signs of emergent properties. As these intersite relations begin to exert their own agency, the networks are cut, and the network lines begin to bundle up in knots and entanglements. The study, therefore, does not aim to quantify the presented networks using formal network analysis, but to use the networks as a starting point to investigate the properties that emerge as people aim to enact and materialise networks of property rights, resource claims and exchange.     

One for the master and one for the dame: stable isotope investigations of Iron Age animal husbandry in the Danebury Environs

Stevens et al. (Oxford J Archaeol 29: 407–428, 2010) speculated that the extensive faunal intra-population isotopic variability at Danebury hillfort was due to the animals being husbanded within various ecological isozones (i.e. microenvironments with distinct natural or anthropogenic isotopic baselines) within the Danebury Environs, and subsequently brought to the hillfort. We test this hypothesis through isotopic analysis of 357 animals from five sites in the Danebury Environs (Suddern Farm, Nettlebank Copse, Houghton Down, New Buildings, Bury Hill). Our results demonstrate that the hypothesis is incorrect as the Environs animals also exhibited extensive intra-site isotopic variability. The observed patterns require considerable human management of herds and flocks, either through animal droving over long distances, or movement restriction through personal attendance or penning/corralling within a landscape containing a mosaic of isozones. Large-scale importation of animals to the Danebury sites from distant regions that have different isotopic baseline values is possible. However, the practical requirements of this model (i.e. long distance trade networks maintained in terms of frequency, proportion and source of animals over 500 years) make this improbable. Rather, we propose a model that includes distinct ecological isozones within the Danebury Environs landscape, with some animals from each of the sites consuming foodstuff from different isozones for most of their lives. This likely involves control of the landscape on a communal probably kinship basis, with individuals having access to certain parts of the landscape at certain times. The landscape could be seen as being made up of numerous interlocking activity-territories, defined in both space and time, remembered and inherited. Irrespective of which model proves to be the most accurate, these results paint a picture of complex land management during the Iron Age.     

Non-destructive PXRF analysis of museum-curated obsidian from the Near East

Non-destructive pXRF has the potential to expand sample populations of archaeological provenancing studies by facilitating access to museum collections of artefacts. In this study, we use museum-curated obsidian for the sites of Tell Brak, Mersin-Yümüktepe and Tell Arpachiyah and geological obsidian samples from central Turkey to demonstrate that non-destructive pXRF is comparable to other techniques in differentiating between Near Eastern obsidian sources. Secondly, we use multivariate analysis to evaluate whether non-destructive pXRF is sufficiently accurate and precise to enable comparison with legacy datasets from previous analysis using PIXE and ICP-MS. Multivariate analyses show that instrumental offsets between the results from pXRF and other analytic techniques are less than source-to-source variation typical for most Anatolian obsidian outcrops and pXRF-identified geochemical groups are directly comparable to legacy datasets. Non-destructive pXRF analysis indicates that during the Chalcolithic, East Göllü da? and Nenezi da? continued to be the major sources of obsidian to communities in central Anatolia and the Bingöl range and mountains surrounding Lake Van supplied sites east of the Levant. Variations in the analysed assemblages suggest a number of obsidian exchange networks existed during this period.     

Raw material distribution ‐ social space,social interaction

For the historical Inuit period long‐distance trading networks are well documented. An archaeological verification of similar behaviour in the Palaeo‐Eskimo period is being discussed for Disko Bay and West Greenland. On the basis of two extraction sites of killiaq, a silicified slate, new evidence is presented. The separation of two types of killiaq is used to describe a local and a regional distribution system. Killiaq from the Nuussuaq peninsula has travelled in large quantities over more than 600 km, whereas the other source from Angissat seems to be more local. The question though still remains whether we are dealing with a direct or an indirect procurement system.     

Wild or domesticated: DNA analysis of ancient water buffalo remains from north China

Recent zooarchaeological studies on water buffalo (Bubalus sp.) remains from China and south Asia question the traditional view that water buffalo were first domesticated in Neolithic China over 7000 years ago. The results from several recent population genetic studies of modern domesticated buffalo (Bubalus bubalis) are not consistent with each other, placing the original center of buffalo's domestication in south Asia, southeast Asia, or China. This paper reports a study using an ancient DNA approach to analyze water buffalo remains from Neolithic sites in north China to investigate their affinities with modern domesticated water buffalo, and to shed light on the origin of modern domesticated water buffalo in China.A 169 bp fragment of D-loop mitochondrial DNA was successfully amplified and verified for 13 of 24 bone samples obtained from seven archaeological sites along the Wei River valley in Shaanxi Province, China. The bone samples which yielded positive DNA can be dated to 8000–3600 cal. BP. The phylogenetic analysis of the obtained DNA sequences along with modern water buffalo sequences indicated that the ancient water buffalos were not the direct ancestor of modern domesticated water buffalo. However, the phylogenetic analysis, along with BLAST searches of these ancient DNA sequences, did demonstrate their relatedness to water buffalo more so than to any other bovid species, confirming the existence of indigenous wild (but now extinct) water buffalo species (B. mephistopheles) in ancient China.The DNA analysis of these ancient remains failed to establish direct links between modern domesticated water buffalo (B. bubalis) and indigenous water buffalo (B. mephistopheles) from ancient China. If further DNA studies of more ancient remains from other regions of China confirm the observation of solely indigenous water buffalo species in ancient China, it would suggest modern water buffalo might not have been first domesticated in China.     

Policy Networks in Complex Governance Subsystems: Observing and Comparing Hyperlink,Media, and Partnership Networks

Methods for observing policy networks have not kept up with the development of new network analytic techniques required to understand governance in complex settings. We compare three unobtrusive methods for observing policy networks based on hyperlinks between policy actor web sites, on media reports, and on public policy partnerships. Observations of one complex local water policy arena with all three methods provide a comparison of the general as well as actor‐specific network characteristics in the three observed networks. The core network of actors observed by all methods has similar network level statistics, highly correlated relationships measured by Quadratic Assignment Procedures models, and the same significant network microstructures as measured by Exponential Random Graph Models. The full networks including actors observed by any method also exhibit similar actor‐level characteristics, although the correlations across networks are stronger for bridging capital measures than for bonding capital measures, and each method has different apparent biases. Once biases are accounted for, similarities suggest that these methods may provide useful proxies for each other and for other relationships that are more difficult or impossible to measure, particularly when combined to offset each method's biases. If so, they can extend the range of policy networks observable with limited resources across space and time.     

In Situ Preservation of Wetland Heritage: Hydrological and Chemical Change in the Burial Environment of the Somerset Levels,UK

Abstract

In situ preservation is a core strategy for the conservation and management of waterlogged remains at wetland sites. Inorganic and organic remains can, however, quickly become degraded, or lost entirely, as a result of chemical or hydrological changes. Monitoring is therefore crucial in identifying baseline data for a site, the extent of spatial and or temporal variability, and in evaluating the potential impacts of these variables on current and future in situ preservation potential.

Since August 2009, monthly monitoring has taken place at the internationally important Iron Age site of Glastonbury Lake Village in the Somerset Levels, UK. A spatial, stratigraphic, and analytical approach to the analysis of sediment horizons and monitoring of groundwater chemistry, redox potential, water table depth and soil moisture (using TDR) was used to characterize the site.

Significant spatial and temporal variability has been identified, with results from water-table monitoring and some initial chemical analysis from Glastonbury presented here. It appears that during dry periods parts of this site are at risk from desiccation. Analysis of the chemical data, in addition to integrating the results from the other parameters, is ongoing, with the aim of clarifying the risk to the entire site.     

Colonial Networks,Australian Humanitarianism and the History Wars

The ‘History Wars’ have brought contests among Britons over the colonisation of Aboriginal land and people to the forefront of public consciousness in Australia. These contests, however, were the result of trajectories that criss‐crossed British imperial spaces, connecting Australia with other settler colonies and the British metropole. A number of historians and historical geographers have recently employed the notion of the network to highlight the interconnected geographies of the British Empire. This paper begins by examining the utility of such a re‐conceptualisation. It then fleshes out empirically the networked nature of early nineteenth century humanitarianism in colonial New South Wales. Both the relatively progressive potential of this humanitarian network, and its complicity in an ethnocentric politics of assimilationism are analysed. Settler networks, developed as a counter to humanitarian influence in the colony, are also examined more briefly. This account of contested networks demonstrates that they were never simply about communication, but always, fundamentally, about the organisation and contestation of dispossessive trajectories that linked diverse colonial and metropolitan sites. The paper concludes by noting some of the implications of such a networked analysis of dispossession and assimilation for Australia's ‘History Wars’.     

Some Issues on the Management of Archaeological Sites in Mainland China

Abstract

The conservation of archaeological sites in mainland China has not attracted much academic and public attention until recently. However, after the 1990s, both the Chinese government and academia have been increasingly concerned with the management of archaeological sites, as illustrated by the introduction of national guidelines (China Principles) and the establishment of research centres in universities and research institutes. Economic development and related social needs are major driving forces behind this phenomenon, while the impact of globalization on academic development in China cannot be denied. However, the natural and social environments in mainland China, as well as the characteristics of archaeological sites, differ from other countries, and whether international principles regarding conservation and management of archaeological sites are applicable to China needs to be considered. While it is a challenging task for mainland Chinese scholars to find suitable strategies to conserve and manage hundreds of thousands of archaeological sites, the problems and experiences in the process of applying international principles to China may provide valuable lessons, not only for Chinese scholars but also for scholars in other areas.     

Assessing the influence of agrochemicals on the rate of copper corrosion in the vadose zone of arable land Part 1: field experiments

Abstract

Part of a project that has attempted to answer the question ‘does the application of agrochemicals accelerate the corrosion of metals in the top 50cm of the soil? ’ is reported. We have approached the question by a combination of field-based experiments (on two sites), establishing laboratory microcosms (one involving simple aqueous systems and the other a series of simulated burial experiments) and by using geochemical modelling techniques to understand the processes involved. Two different experimental approaches in the field are documented — one using in situ monitoring of corrosion potentials and the other assessing the degree of induced corrosion using image analysis on recovered samples. The first was carried out on arable land close to the University of Bradford to which we applied different fertilizer regimes. The second was established on land owned by the University of Newcastle at Palace Leas, Morpeth, Northumberland, which has a documented field management regime extending back over one hundred years. We focus here on a sub-set of the data relating to the behaviour of the thinnest samples of copper in each case. There does seem to be some evidence of an effect resulting from the applied fertilizer, but the data are sometimes contradictory. We suggest a number of improvements for future field experiments that monitor in situ corrosion in the vadose zone.     

Identifying pre-Hispanic water storages in agricultural areas of south-central Andes through diatom evidence

In the Andes, there are several pre-Hispanic irrigation networks with structures destined for water storage. However, it has not been widely discussed in archaeological research. This is probably due to their being difficult to identify. The aim of this study is to explore the use of diatom assemblage analysis as a methodological tool suitable to help in the identification and characterization of these ancient hydraulic structures. We analyzed two archaeological structures interpreted as water reservoirs from north-western Argentina (EH1 in Antofagasta de la Sierra and U-88R1 in Yocavil) and compared them to current reservoirs. The diatom species composition and the changes in the dominant ecological groups in the studied structures highlight different periods of hydraulic behavior. EH1 contained and stored water, but there were periods of time in which there was a lack of use or abandonment of the structure. However, the U88-R1 structure does not have diatom evidence of containing standing water for a prolonged time but presence of wet soils. Thus, the structure could have been used for other water management strategies. The results show that diatom analysis is a methodological tool with a high potential to study ancestral hydrotechnologies.     

A tale of two trails: Lessons from a comparative account of the Trans Canada Trail and the Sendero de Chile

A new generation of greenways has emerged in recent years, the most ambitious of which are nationwide, interconnected networks of multi-use, multi-purpose greenways and trails, clustered under a single national vision. However, because these initiatives have been the focus of so few research studies, opportunities to glean lessons from their planning and implementation have been limited. This paper contributes to addressing this knowledge gap by presenting a comparative account of two networks, the Trans Canada Trail in Canada and Sendero de Chile in Chile. Using document analysis and interviews with officials closely involved in their development, the evolution of both networks is documented over time, emphasizing similarities and differences related to their planning and implementation. Both initiatives have faced significant challenges in reaching their connection goals and have availed themselves of a diverse range of opportunities and strategies to advance their agendas. A simple model of a virtuous cycle is proposed to highlight the positive feedback—between political and public support, sustained funding, partnership development, accessibility for urban residents, and connectivity of the network—generated by sustained network expansion over time. It is hoped that the insights offered from this analysis may offer guidance to inform the development of similar scale projects elsewhere.     

Maritime and Underwater Cultural Heritage in South Africa: The Development of Relevant Management Strategies in the Historical Maritime Context of the Southern Tip of Africa

South Africans have a long association with water. It has provided a source of food, a medium for trade and a catalyst for migration and development. The country??s geographical position as a crossroads of maritime trade between Europe and the East means that its history is inextricably linked to the history of the rest of the world. The result is a multi-faceted representation of sites, objects and mythologies related to water and maritime heritage that reflect not only local historical and social development, but global cultural change as well. Given the importance of South Africa??s underwater cultural heritage (UCH), managers have grappled with management principles, ethics and theoretical models in an effort to produce and enforce heritage legislation that is relevant and effective. This paper outlines South Africa??s maritime context from 1.5 million years ago until the present, summarises legislative and mitigation developments over the past half century and provides details of current trends in maritime archaeology and UCH management at the southern tip of Africa. Training programmes and public awareness are keys to this strategy to bring UCH and maritime archaeology into the mainstream and counter treasure hunting and looting of this rich, friable resource.     

Let no space go to waste: comparing the uses of space between two Late Classic centers in the El Paraíso valley,Copan, Honduras

Phosphorus analysis of earthen and plaster floors has been used in Mesoamerica to locate and identify activities at ancient sites. This study uses phosphorus analysis to discern if the inhabitants of two Late Classic coeval and proximal sites located in the El Paraíso Valley of Honduras were different culturally from each other. The buried earthen and plaster surfaces of both sites were systematically sampled and analyzed for phosphorus remains. The patterns of elevated phosphorus from these open spaces were subsequently compared to determine if differences in the habitual use and treatment of open spaces could be discerned. These differences are evaluated as a function of behavioral norms, functional responses, and cultural dispositions in order to evaluate the extent to which these two populations were indeed different from each other.