Cultural Niche Construction and Remote Sensing of Ancient Anthropogenic Environmental Change in the North Coast of Peru

Archaeological land use results in the modification of natural environments according to cultural templates and strategies. Deeply entrenched environmental legacies can result from such “niche construction,” influencing subsequent cultures and continuing to resonate in modern ecological function. These changes can be better understood through archaeological remote sensing.Here, I describe spectral responses of densely vegetated sugarcane fields in the Chicama Valley (north coast of Peru) to archaeological features and associated anthropogenic soils (anthrosols). Ongoing satellite remote sensing documents approximately 440 previously unrecorded major archaeological monuments and smaller features within a 310 km² sample of the Chicama Valley The majority of these date to the Moche–Chimu periods (ca. AD 300–1400), with others dating to the Cupisnique–Colonial periods. The newly recorded features are significant for accurately reconstructing the socio-ecological history of anthropogenic environmental change in the region.In addition to advancing analyses of archaeological settlement, these results reveal how prehispanic land use legacies result in persistent anthropogenic niches that can affect modern agricultural potentials. The relationships between anthropogenic features and sugarcane development can be directly evaluated through vegetation indices and physically based image transforms. Phenological response is linked to long-term alterations in soil texture, organic-matter content, and moisture capacity. Past land use thus has a significant impact upon contemporary ecological function, resulting in anthropogenic microenvironments. As sugarcane increasingly is an important industrial crop, these results have the potential to be widely applied to archaeological and agronomic problems, including reconstructions of archaeological landscapes, understanding persistent anthropogenic environments, and mitigating heritage loss while potentially improving precision agriculture.     

The Water Balance and its Zonal Characteristics

The structure of the water-balance is found to have zonal characteristics corresponding to the major natural geographic zones (tundra, forest, steppe). Data on evapotranspiration and groundwater runoff plotted as a function of soil moisture show a distinct zonal pattern of the water-balance structure. This pattern is most clearly evident in the groundwater runoff coefficient, which reflects the share of soil moisture that percolates downward to replenish the groundwater reserves.     

The Upper Paleolithic of the Russian steppe zone

The vast steppe area North of the Black Sea has been populated since the early Middle Paleolithic. The number of known sites dating to the Upper Paleolithic is increasing as research progresses, and today about 150 Upper Paleolithic sites have received some (although varied) degree of study. For a long time, the steppe zone was considered to have had a separate cultural-economic adaptation that differed drastically from that found in the periglacial province farther north. The difference was expressed in the specialization in bison hunting and in the very high mobility of the population. More recent archaeological research, described briefly in this article, presents a different picture: Subsistence was more varied, hunting was not limited to bison, and the settlement system indicates long periods of occupation of the sites. There were many local archaeological cultures, and study of the material remains indicates numerous contacts between the people of the steppe zone and those in Central Europe and the Caucasus and, by way of the Caucasus, with Western Asia.     

On the Anthropogenic Factor in Landscape Formation (Landscape and Ethnos VII)

In attempting to classify anthropogenic factors of landscape formation, Gumilev rejects Arnold Toynbee's concept of challenge and response as the factors underlying the genesis of civilizations on the ground that it ignores the factor of ethnic differentiation. Gumilev finds that the principal changes introduced by man into the landscape are associated with certain short-term periods of superhuman effort that coincide with intensive processes of ethnogenesis. This intensive activity is followed by a damping inertia that leads ultimately to a new equilibrium between the ethnos and the environment until the next upsurge of activity.     

Classification of the Climates of the USSR

The paper surveys the present state of the study of the moisture and heat factors of soil formation under the geographic, genetic and agronomic approaches of soil science. The author finds that despite the single physical nature of the phenomena to be studied they have been investigated separately within the framework of each of these approaches. He calls for an integrated study of the moisture and heat factors by the soil-science field as a whole and outlines specific steps.     

Radiation Conditions in the Territory of the USSR in Various Geological Periods

The components of the radiation balance and the heat balance are computed for Lat. 45°, 60° and 75°N for various geological periods. Cloud cover is estimated for each geological period on the basis of continentality, the character of the underlying surface, type of climate and landscape as well as the known mean magnitude during the present geological period. Albedo is based on the character of the underlying surface indicated by paleogeographic data. Effective outgoing radiation is also based on the character of the underlying surface as well as cloud cover and atmospheric moisture. The disposition of net radiation at the earth's surface is broken down into sensible and latent heat fluxes, the soil heat flux being ignored. The resulting mean data on radiation and heat-balance components are then used to reconstruct the probable range of climatic situations that may have existed in what are now the polar, middle, and subtropical latitudes of the territory of the USSR.     

Diversity of Pre-colonial Earthworks in the Brazilian State of Acre,Southwestern Amazonia

Amazonian earthworks, which are an important testimony to ancient anthropogenic landscape modifications, have a significant variety of structures and sizes, and are found in different geographical and ecological locations that indicate separate time periods, distinct cultural affiliations, and diverse purposes. We introduce data from diverse archaeological earthwork sites, geoglyphs, mound sites, and walled enclosures situated in the interfluves of the Purus River in the Brazilian state of Acre and propose a type definition for these sites. The abundant anthropogenic landscape features and their associated material culture indicate considerable human-induced environmental alterations and diverse earthworking traditions that are characteristic of the region of eastern Acre from at least ca. 2000 b.p. onwards.     

The Natufian: Settlement variability and economic adaptations in the Levant at the end of the Pleistocene

The relationship between current interpretations of Natufian settlement and subsistence and available archaeological data are examined in light of recent research, particularly in Jordan. Regional variability in adaptive strategies is discernible, particularly between forest and coastal sites versus steppe and desert sites. Greater evidence of plant processing and more intensive occupation characterize settlement in the former, although year-round occupation has yet to be conclusively demonstrated. Patterned variability also exists between two classes of steppe and desert area settlements. One set of steppe and desert sites is characterized by a broad range of activities and moderate settlement permanence and activity intensity, while less permanent occupation and more specialized activities focused primarily on hunting typify the other set of sites. Evidence for food production in the Natufian is examined and, although the domestication process may have begun, no morphological evidence exists for the domestication of plants or herd animals. Finally, worthwhile areas for future research are outlined.     

Anthropogenic saltpetre: dual (oxygen and nitrogen) isotopic constraints to the biogeochemical processes

Saltpetre constitutes one of the major ingredients of gunpowder, which was a driving force during the political changes in late medieval to early modern times in Japan. Two types of model saltpetre mineralization are studied. One represents efflorescent saltpetre formed as the byproduct of indigo dye manufacture, whereas the second is anthropogenic, derived from relict nitre‐beds. Here, oxygen and nitrogen isotopic analysis, as expressed by δ¹⁸O and δ¹⁵N notations, is applied. The calculated δ¹⁸O values for ambient water, responsible for the microbial‐mediated oxidation of ammonium into oxygen in nitrates, tended to have higher ranges than average local meteoric waters of the relevant regions. An overall trend could be seen, showing the apparent positive nitrogen isotopic fractionation during the microbial transformation from initial organic nitrogen into nitrate product. Dual isotopic analysis for industrial nitrates provides a useful tool for investigation of the provenance of historic gunpowder. Present anthropogenic saltpetre involves positive control over temperature–moisture regimes and oxygen fugacity during formation, the process being distinctive from those prevailed in British India and other European countries.     

The Internal Circulation of Matter in the Principal Types of Natural Ecosystems of the USSR

The internal biological circulation of matter in zonal ecosystems may be characterized in terms of the degree of self-containment, meaning the capacity of the ecosystem to make full use of organic matter without losing any to the outside or letting it accumulate uselessly within the system. The circulation may also be characterized in terms of the rate of circulation and the structure of circulation. These criteria are used to describe the main zonal ecosystems of the USSR (tundra, tayga, broadleaf forest, steppe, desert). Tundra and tayga are found to suffer from incomplete circulation with heavy loss of biogens; broadleaf forest and steppe are the most productive. The impact of human activity on each natural ecosystem is analyzed.     

Problems of Long-Term Geographic Prediction

A program of geographic prediction up to the year 2000 is proposed for inclusion in the teaching and research plan of the Geography Faculty of Moscow University. Three aspects are distinguished: (1) specific forecasting of changes on the face of the earth and in the use of resources, (2) the elaboration of methods of geographic prediction, and (3) prediction of future trends in the science of geography. The three key factors in specific geographic prediction are the hydroclimatic, the anthropogenic, and the resource factor. The principal method of prediction should be the study of chain reactions, of cause-and-effect relationships, allowing for flexible multivariate forecasts. In the science of geography, periods of differentiation and integration are found to have alternated at periods of 25 to 30 years. The most promising tendencies in geographic research are the hydroclimatic approach, the new synthetic disciplines, economic geography, and integrated mapping of geographic phenomena.     

The In Situ Preservation in the Unsaturated Zone: Results from Environmental Investigations at the ‘Schultz Gate’ Case Study in the Medieval Town of Trondheim,Norway

Medieval Trondheim is located on the eastern part of Nidarneset, a small peninsula formed by the river plain at the mouth of the River Nid on the southern shore of Trondheimsfjord. The topographic conditions for medieval Trondheim differ from those of the other Norwegian medieval towns (notably Bergen, Oslo, and Tønsberg), and the protected, historic part of Trondheim contains anthropogenic sediments which lie entirely within an unsaturated environment. A large proportion of these sediments contain wood and other types of organic material. The thickness of the anthropogenic sediments varies greatly from more than 4 m to less than 0.5 m, and they overlie well-drained alluvial sands and gravels. The Directorate for Cultural Heritage (Riksantikvaren) and the Norwegian Institute for Cultural Heritage Research (NIKU) have different roles in the management of cultural heritage sites. However, they cooperate in developing sustainable management and a scientific approach to research, as well as finding practical solutions aimed at securing stable preservation conditions for anthropogenic sediments that are vulnerable and sensitive to environmental changes, both chemical and mechanical. In this paper we present results from environmental investigations conducted in 2007 and 2012 at a location in the central part of medieval Trondheim where an in situ preservation project has been established on the site of new construction work. The project is cross-interdisciplinary, combining archaeological retrieval methods with the sampling and analysis of soil chemical parameters and the monitoring of present basic parameters such as temperature, moisture and redox potential. The monitoring has been ongoing since the beginning of 2013 and will continue until 2017.     

Climate change and the expansion of the Scythian culture after 850 BC: a hypothesis

In south-central Siberia archaeological evidence suggests an acceleration of cultural development and an increase in the density of nomadic populations around 850 BC. We hypothesize a relationship with an abrupt climatic shift towards increased humidity caused by a decline of solar activity. Areas that initially may have been hostile semi-deserts changed into attractive steppe landscapes with a high biomass production and high carrying capacity. Newly available steppe areas could be invaded by herbivores, making them attractive for nomadic tribes. The central Asian horse-riding Scythian culture expanded, and an increased population density was a stimulus for westward migration towards southeastern Europe.     

Principles of a Landscape Classification

A classification of natural landscapes based on a combination of historical-genetic and structural criteria is offered. The classificatory categories of a higher order are based on genetic and spatial associations of landscapes; the lower taxonomic entities are based largely on internal landscape structure. The taxonomic entities range from division to subspecies. The earth's landscape sphere is first broken down into divisions of terrestrial and water landscapes. Divisions fall into systems based on zonal differences in the heat and water balance (subarctic, boreal, subboreal, etc.). Systems fall into classes (plains and mountain landscapes), and classes break down into groups of landscapes based on geochemical and moisture criteria (eluvial, hydromorphic, etc.). Groups fall into types on the basis of bioclimatic and soils criteria (wooded steppe, steppe, desert etc.). Types break down into genera on the basis of genetic landform types (alluvial plains, colian landforms, etc.). Finally, the genera fall into species and subspecies on the basis of dominant and subordinated morphologic units known in Russian as urochishche. Examples of steppe plains genera might be gently rolling sandy plains with feathergrass on dark chestnut soils, or level plateau with a mantle of loam and fascue grass on dark chestnut carbonate soils.     

pXRF method development for elemental analysis of archaeological soil

Portable X-ray fluorescence (pXRF) is now widely used for detecting the elemental composition of a material. Elemental analysis can enhance archaeological interpretations, such as mapping, preservation analysis and identifying anthropogenic activities. However, validated and reproducible protocols for analysing archaeological soil are still required. The elemental concentrations detected with three sets of preparation methods were compared: in-situ (no preparation), in-field (analysing through plastic bags) and ex-situ analysis (laboratory-based preparation). Influential factors were also investigated: calibration parameter, moisture, homogeneity, sieve size and soil type. In-field analysis attempted to improve reliability without offsite processing, but instead substantially reduced elemental concentrations and skewed the proportional distributions. Ex-situ analysis significantly increased elemental concentrations and reduced variation. Proportional distribution was different between the three methods, but unchanged following homogenizing and sieving. These comparisons demonstrated that ex-situ analysis maximizes detection and ensures consistent samples.     

Factors of Swamp Formation in the Polesies of the Russian Plain

The sandy, wooded, marshy outwash plains known as polesies occupy large areas of European Russia. Waterlogging and swamp formation are promoted by their location in geological troughs and in areas of excess atmospheric moisture as well as by deforestation and other man-made factors. The polesies represent an unused virgin land resource that could be used for growing fodder crops after drainage.     

THE MECHANISM OF DEVELOPMENT OF THE VOLGA DELTA AND ITS GROWTH PROSPECTS

The delta of the Volga River on the Caspian Sea is a highly dynamic form, whose growth has been affected by a combination of physical and human factors. Rapid delta growth in recent years has resulted in a deterioration of both physical and economic conditions (navigation problems, inadequate moisture supply, overgrowing of shallows with vegetation, loss of spawning grounds). Regression analysis yields a number of relationships between the inflow of water and suspended sediments, on the one hand, and delta growth, on the other hand, with a distinction between periods of a lowering of the Caspian Sea level and relative stability. The regression equations are used to project the likely future evolution of the delta. The only combination of conditions that is likely to limit further delta growth by the year 2000 is the stability of the Caspian Sea level and a period of average moisture supply. In all other cases, the delta is likely to continue its undesirable advance.     

汉代对羊纹金饰片初探

1968年,河北满城中山靖王刘胜墓出土5件金饰片(原文称金叶),上面捶揲对称的侧面羊首。无独有偶,1983年广州象岗山南越王赵眜墓也出土8件形制类似的金饰片(原文称金叶)。2004年,在江苏扬州西汉刘毋智墓的收缴文物中,再次见到了同样形制的金饰片。     

Quantification and Visualization of In Situ Degradation at the World Heritage Site Bryggen in Bergen,Norway

Abstract

Environmental monitoring at the World Heritage Site of Bryggen in Bergen, Norway, has shown damaging settling rates caused by degradation of underlying archaeological deposits. Measurements of piezometric head, oxygen, and soil moisture content, as well as chemical analyses of water and soil samples are key elements of the environmental monitoring.

Groundwater monitoring and geochemical analyses reveal a complex and dynamic flow through the natural and anthropogenic stratigraphy. The preservation conditions within the organic archaeological deposits are strongly correlated with oxygen and soil moisture content, that are controlled by the groundwater flow conditions at the site. To quantify decay rates, it is thus essential to understand the wider hydrogeological context of the site. This paper presents recent advancements in quantifying decay rates in the saturated zone at Bryggen. The paper also shows that 3D geo-archaeological modelling can contribute to preservation management by visually combining results of geological, archaeological, geochemical, and hydrological investigations. This opens up for improved multidisciplinary understanding of preservation potential, thereby contributing to an improved protection of archaeological deposits in situ.