Age determination of Petra's engineered landscape – optically stimulated luminescence (OSL) and radiocarbon ages of runoff terrace systems in the Eastern Highlands of Jordan

The unfavourable mountainous environment of the Petra region in southern Jordan was modified by ancient engineers to supply the Nabataean/Roman city of Petra with food and water. The area was reclaimed by installing extended runoff terrace systems and hydraulic structures. The agricultural terrace systems have so far been dated based on surface pottery, and the chronology of the systems is under debate. In this study, optically stimulated luminescence (OSL) and radiocarbon dating techniques were successfully applied to date these terrace systems. Samples were taken from the fills of agricultural terraces and underneath their walls to determine the chronology of the construction, use and abandonment of the agricultural terraces. The results suggest that runoff farming in the Petra region started around the beginning of the Common Era, and construction, use and maintenance lasted at least until 800 AD.     

THE SHEPHELAH IN THE IRON AGE: A NEW LOOK ON THE SETTLEMENT OF JUDAH

Abstract

The Shephelah was densely settled in the Late Bronze Age, but most of the settlements were gradually abandoned during the transition to the Iron I period. Only a few Iron I settlements existed in the eastern part of the region (excluding the Philistine sites at the northwestern edge of the Shephelah), forming a small Canaanite enclave. During the Iron II period the region was gradually resettled, and it became part of Judah. This process lasted until the 8th century BCE, when the region reached an unparalleled demographic peak. Sennacherib's campaign brought wide-scale destruction, and the region recovered only partially before being devastated by Nebuchadnezzar. After reconstructing the region's settlement history, the article reassesses its political and demographic history in comparison to the neighbouring regions of the Judean highlands and the southern coastal plain, it is concluded that the Shephelah had a lesser role in the history of Judah than some recent studies suggest.     

Prehistoric land use and hydrology: a multi-scalar spatial analysis in central Arizona

Human land-use strategies involving the management of rainfall and runoff to promote crop production are found throughout the world. This paper presents a functional assessment using hydrological modeling with modern high-resolution LiDAR datasets and contextual archaeological site data to study prehistoric agriculture. The focus is on rock alignments created by the Hohokam culture in the semi-arid environment of the US Southwest. By incorporating a multi-scalar GIS study for terrain analysis at a regional, community, and site scale, the complex interactions between the prehistoric sites, features and the environment are revealed. The results of these analyses on digital elevation models (DEMs) gave insight to the past functionality of such agricultural features within the cultivated landscapes. The results included:1) The agricultural features were suitably placed for the collection of rainfall and runoff.2) The features were reducing the volume of water flowing through the area to prevent flooding and crop destruction and promoting soil infiltration.This shows the complexity and innovation of prehistoric societies living in marginal environments and how their adaptation to such environments was necessary to sustain their populations.     

Long-term Characteristics of Seasonal Rainfall at Katherine,Northern Territory

Rainfall at Katherine, Northern Territory, is concentrated into a few months, mainly December-March. For the 101 seasons, 1888–89 to 1988–89, the average rainfall is 947 mm and it is relatively reliable with a coefficient of variation of 24 per cent. Within this period use of the 15 seasons moving average shows two major spans of seasons in which average seasonal rainfall has increased and two others of decreasing average seasonal rainfall Also, the rain-causing mechanisms that operate in the region produce markedly more variable rainfall within seasons. This paper characterises the types of growing seasons at Katherine on the basis of the proportion of the seasonal total that falls within each of the seventeen fortnightly periods from 9 October to 3 June. Overall, 31 different groups of seasons are identified with 13 groups consisting of a single season. Conversely, the largest group contains 35 seasons. The analyses identify groups of seasons in which rainfall has occurred early or late in the season and others which have featured dry spells or wet spells in the core of the season. This variability helps to explain some of the challenges for farming systems research and for the development of sustainable farming systems.     

Landscape Archaeology in a Dry-Stream Valley near Tell es-Sâfì/Gath (Israel): Agricultural Terraces and the Origin of Fill Deposits

Abstract

As part of the long-term archaeological project being conducted at Tell e-Sâfi/Gath in the semi-arid foothills of the Judean Mountains, a first order dry stream channel located in a valley east of the main site was surveyed and soil pits excavated in selected locations. A ditch, 10 m in length, was dug perpendicular to one of the agricultural terraces, showing that the small valley is filled with soil to a depth of more than 3 m above bedrock. The fill dates mainly to the Byzantine period (ca. 4^th-7^th cent. CE), according to the ceramic sherds. Three check-dam walls and related terraces were found across the width of the valley. Surprisingly, the base of the check-dam does not go deeper than 50 em into the uppermost part of the fill, well above bedrock or gravel layers, while covering only the upper part of the terrace step. Thus we use the term “floating terrace wall” or “floating check-dams”. Each of the terrace walls is about 0.5 m high and 50 m long. The valley is bound by two slopes: (1) a northeast facing slope characterized by Nari outcrops (a hard calcrete crust in the upper part of the chalk bedrock) and soil pockets, and (2) a southwest facing slope without Nari. The source of most valley fill material is apparently from the slope without Nari. The valley shows comparatively little accumulation during the Iron Age and very much accumulation during the Byzantine period. The main cause seems to be human-made earth movement and terrace building during the Byzantine period, rather than passive erosion and accumulation as a result of general environmental pressure by human activity.     

Production centers of cooking pots in Iron Age Judah

This paper will present and discuss a multifaceted research project dealing with the production of cooking pots during the Iron Age II (ca. 1,000–586 BCE) Judah (modern Israel). In particular the new compositional analysis of 541 cooking vessels from 11 sites in Iron Age Judah will be presented. The study employs petrographic and chemical (NAA) analysis. The results of this ongoing research have already produced interesting information about production centers and movements of cooking pots in Iron Age II Judah. Apparently, the vast majority of the cooking pots sampled were made of a similar type of clay, related to terra rossa soil. This is true also for sites in the northern Negev and Judean Desert, where the type of soil was not available in the region of the sites. Furthermore, many of the cooking pots distributed around Judah were made in Jerusalem according to a well-located chemical profile (JleB). Other groups may represent Judean Shephelah production centers as the Lachish area as well as production centers in southern Israel or ancient Edom. The implications of the importation patterns of cooking pots by peripheral Judean sites will be discussed.     

The Early Bronze Age Fortifications At Tell Es-Safi/Gath,Israel

Tell es-Safi/Gath is a multi-period site located on the border between the Judean foothills (Shephelah) and the southern coastal plain in central Israel, which has been subject to survey and excavations over the last two decades. Excavations by Bliss and Macalister in 1899 exposed a fortification system which was dated to the “Jewish period”. In this paper, we present updated data on these fortifications which have led to fresh insights. In two separate excavation areas, we excavated portions of the fortification system that surrounded the site which can now be dated to the EB III of the southern Levant. The EB fortification system influenced the location of later fortifications at the site. The nature of the construction techniques of these fortifications and the character of the settlement which they surrounded suggest that Tell es-Safi/Gath was a major regional urban centre during the EB III and was governed by a centralised administrative hierarchy.     

‘Torrents of Terror’: the August 1998 Storm and the Magnitude,Frequency and Impact of Major Floods in the Illawarra Region of New South Wales

The Illawarra Region some 80 kilometres south of Sydney is characterised by a prominent coastal escarpment that rises to 700 m within 12 km of the coast and forms a locus for frequent, high intensity rainfall events. One of the most recent recorded events occurred on 17 August 1998 with rainfall intensities at several pluviometers exceeding 120 mm hr^‐1 over a duration of one hour, with up to 249 mm falling in 3.5 hours during the main storm burst. Detailed pluviometer data indicate that the storm was non‐stationary and moved down catchment producing a widespread zone of 120 mm hr^‐1 intensity rainfall over a 30 minute duration across mid‐lower catchment areas after similar intensity but longer duration rainfall in catchment headwaters. Slope‐area reconstructions of peak discharge indicate that small catchments on the escarpment within the zone of maximum intensity experienced close to 100% rainfall‐runoff relationships, with peak discharges correlated to short duration (<1 hr) peak rainfall intensities. Widespread erosion occurred particularly where urban development had encroached on natural water courses. Debris/hyperconcentrated flows originating from both anthropogenic and natural sediment sources caused damage to urban areas. This paper provides an overview of the spatial and temporal characteristics of the 17 August 1998 storm, the hydrologic and geomorphic response of the streams, and the nature of damage to urban areas. It reassesses the frequency of recent high‐magnitude rainfall/flood events in the region, discussing the relationships between rainfall intensities, estimates of flood magnitudes and stormwater channel capacities.     

Experimental harvesting of wild peas in Israel: implications for the origins of Near East farming

Previous evaluations of the potential advantage of farming over foraging have been based on experimental harvesting of wild cereals in Near Eastern ecosystems. The highly successful combination of cereals and legumes, “the Near Eastern crops assemblage”, is considered a natural choice due to the complementary nutritional value of the two crop types. Yet, legumes were rarely referred to in models describing early farming and the transition from foraging to farming. Wild legumes differ from wild cereals in several attributes pertaining to domestication, including population density (patchy vs. dense), growth habit (indeterminate vs. determinate), dispersal units (camouflaged seeds vs. awned spikelets), seed dormancy (90–80% vs. 50%), and year to year establishment (erratic vs. regular). We have analyzed the yield potential of three wild pea species (Pisum elatius, P. humile, and P. fulvum) in several ecosystems in Israel. All three pea species have patchy distribution patterns and the yield potential of the wild populations is highly variable. A harvest rate of 0.6–610 grams (calculated per collector) of clean dry grain per hour of harvest time was estimated. Among the three species studied the one adopted for domestication appears to be the least productive. This suggests that the potential productivity of wild peas was not the only or even the major consideration for domestication.     

敦煌莫高窟降雨分布及入渗特征研究

敦煌莫高窟文物具有唯一性和脆弱性,干燥环境是壁画和塑像长久保存的保障,降雨是病害发生诱因。为了弄清降雨对文物的损害机制,本研究通过气象监测数据分析和野外人工降雨模拟试验,分析莫高窟降雨分布特征和窟顶戈壁降雨入渗和产流规律,为开展洞窟内壁画病害发育机理分析和实施莫高窟洪水风险预控提供理论依据。25年气象监测数据分析表明,莫高窟区域多年平均降水量39mm,集中在5~8月,降雨类型主要为微雨和小雨,频现大于76%,大雨及暴雨均为突发性强降雨,频现仅为1.5%,常常伴随区域洪水的发生。降雨模拟试验结果表明,当平均降雨强度0.75mm/min,降雨历时160min时,入渗湿润锋迁移至深度80cm左右即趋于平衡。但是,高密度电阻率探测表明洞窟地层2~3m处,水分饱和度可达60%左右,极易带动可溶盐向壁画地仗层富集,致使病害发生发展。经计算,窟顶戈壁径流系数0.016,产流能力非常低。区域洪水主要来源于莫高窟周边戈壁及野马山地带降雨汇流。     

Counting them in,not out: Surveying Farm Women about Agricultural Leadership

This paper examines the efficacy of the survey method to investigate questions relating to women and agricultural leadership. I begin by reviewing the feminist critique of the survey using examples from the literature on farming women. I then describe two particular difficulties I encountered in surveying farm women about agricultural leadership in the Australian sugar industry. The first difficulty is the problem of constructing a sample of farm women using official data sources that is representative of the diversity of women in agriculture. The second difficulty is the impact that gendered agricultural identities may have on survey completion rates. The paper argues that, if we are to count farming women ‘in’, rather than ‘out’ when studying agricultural politics, we need to engage with methods which will be inclusive of the diversity of women in farming and which will also give consideration to the construction of gendered identities in agriculture.     

Constructing Sustainable Rural Landscapes: Oil Mallees and the Western Australian Wheatbelt

This paper considers the landscapes of the Western Australian wheatbelt and the possibilities for sustainability signified by the Oil Mallee Project. The Oil Mallee Project aims to develop commercially viable tree crops for the low rainfall wheatbelt region as a means of profitably managing dryland salinity. Interviews with farmers and other stakeholders in the Oil Mallee Project and agriculture are analysed to reveal important elements of landscape construction in the wheatbelt and stages in the emergence of the Project. These elements include historical land clearing, international chemical and machinery companies and the technologies they supply, land of marginal economic productivity, global food markets and alley farming systems. The paper uses material semiotics and actor‐network theory in describing the networks of relationships that shape wheatbelt landscapes. Breakdowns in the dominant networks of industrial agriculture provide spaces for the Oil Mallee Project to build relationships that reconnect industrial systems to the specific ecology of the wheatbelt landscape. However, the networks of industrial agriculture remain powerful and the Project has worked strategically to become integrated with existing agricultural systems, rather than aiming to directly resist or entirely displace dominant patterns of production in the wheatbelt.     

Agriculture and community in Chaco Canyon: Revisiting Pueblo Alto

The Bonito Phase (ca. AD 860–1140) in Chaco Canyon is widely recognized as one of the primary sources of information about emergent social complexity in prehispanic North America. Large masonry buildings called “great houses,” such as Pueblo Bonito, are iconic symbols of the rapid rise of a powerful society based on the ability to harness labor to prolonged construction projects. It is clear that the political forces at work during the Bonito Phase had an agricultural foundation, presumably in the financing of construction through food surpluses, but the actual nature of farming in Chaco is surprisingly opaque to archaeologists. Indeed, many researchers have concluded that farming in Chaco Canyon was too constrained by poor soils to have supported the dynamic developments associated with the massive stone structures and extensive trade systems of the Bonito Phase. The popular perspective that Chaco was mysterious or enigmatic is largely a response to this view of the canyon as agriculturally marginal. In this study we argue that a predictive model of potential agricultural productivity that includes other portions of the canyon besides the floodplain indicates that Chaco was not marginal for farming. The results of this analysis suggest that great house communities may have been sited to control local production zones and that some great houses may have been linked to others in order to manage multiple agricultural areas.     

Geography and Economic Preferences as Cultural Markers in a Border Town: The Faunal Remains from Tel Beth‐Shemesh,Israel

We present a zooarchaeological analysis of the faunal remains at Tel Beth‐Shemesh, a site located in the Shephelah region of Israel, which has been dated to the Late Bronze Age and Iron Age I. The site, identified as the biblical city of Beth‐Shemesh, was a Canaanite border town between Philistine and Israelite settlements and of great importance in our attempts to understand the social and cultural transformations that occurred in the southern Levant during those periods. This study contributes to a more accurate understanding of the cultural identity of the site's inhabitants by exploring the cultural differences between populations as reflected in their different dietary preferences. We analysed the subsistence economy at the site, the general exploitation patterns, herd management strategies and consumption practices, all of which are based mostly on domestic livestock. We determined the cultural identity at the site mainly by comparing the representation of pig remains with that found at other sites in the region, and offer various explanations for the differences. The comparisons revealed clear differences between Tel Beth‐Shemesh and other known nearby Philistine sites. This site appears to have possessed a self‐contained production and consumption economy with similarities in the general pattern of animal exploitation between the two periods. These similarities constitute evidence for the continuation of the local population and of its culture at the site during the period of turmoil that swept the region during the transition to the Iron Age. Copyright © 2013 John Wiley & Sons, Ltd.     

Cabeza de Vaca's land of maize: an assessment of its agriculture

The inhabitants of eastern Sonora were reported by the Spaniards to be more populous and culturally more advanced than other groups in northern México and the southern portion of the American Southwest at the time of Spanish contact. They were also reported to have possessed a well developed agricultural complex. In spite of their achievements, the ancient people of this region have been the subject of few studies because of perceived data limitations. Although they are sparse, data are sufficient to reconstruct the agricultural base. Historical documentations, archaeological remains, and ethnographic analogs indicate that these people relied on a variety of cultivars and agricultural techniques. In addition to dry farming maize, beans, and squash, they also double cropped and irrigated through intricate canal systems. With such elaborate practices and techniques, enough was produced to feed a population of nearly 100,000 and to support a culture that was the only one in the region to be at its zenith when the Spaniards arrived.     

THE FERTILE DESERT: AGRICULTURE AND COPPER INDUSTRY IN EARLY ISLAMIC ARAVA (ARABAH)

Abstract

The Arava is an arid region in the Southern Levant. Archaeological excavations and surveys in the area revealed dense settlement and sophisticated technologies from the eighth to ninth centuries—qanat water technology and copper production. Differences between the data of the middle and southern Arava suggest two separated economic systems. While the Southern Arava seems to be primarily an industrial area of copper that delivered the raw material to Ayla, the middle Arava was mainly agricultural and may be connected to trade routes. Studying the farming conditions of this arid area points to date palms as the main crop of the agricultural settlement. However, it is not yet clear where the Arava's produce was exported.     

农业历史地理环境变迁与农业地域拓展

农业地理环境是农业生产诸自然条件中影响最大的因素之一。历史过程之中,以地理环境条件为基础,伴随农业生产技术的纵深迈进,农业经济的开发与中心转移呈现出明显的层次性与地域性特征:率先是黄河中下游地区的旱作农区,次为长江流域稻作农区,进而是高寒农区的开发。     

The Distribution and Environmental Relationships of Native Grasslands on the Lowland Gippsland Plain,Victoria: an Historical Study

Historical survey plans were studied to document the distribution and ecological relationships of treeless native grasslands on the lowland Gippsland plain, eastern Victoria. Grasslands occupied about 600 square kilometres, mostly in the Sale—Maffra—Heyfield area, which receives about 600 mm mean annual rainfall. All grassland regions have been developed for irrigation farming and not a single remnant is known to survive. Topography and soils appear to be the major factors promoting grasslands. They occurred on flat plains on clay loam and loam topsoils, above a clay subsoil. Burning by Aboriginals probably affected plant composition but appears unlikely to have been the principal factor leading to treelessness.     

Byzantine–Early Islamic agricultural systems in the Negev Highlands: Stages of development as interpreted through OSL dating

Abstract

An extensive survey followed by OSL (optically stimulated luminescence) dating of loess accumulation in agricultural terraces at six Byzantine and Early Islamic sites in the Negev Highlands revealed clear stratigraphic and chronological sequences. Traditionally dated to the 1st–7th centuries a.d., results from the present study demonstrate that the construction and use of largescale agricultural systems took place in the 4th–11th centuries a.d. This new chronology provides the framework for a more precise interpretation of the circumstances of construction and demise of largescale agriculture in the Negev Highlands. The agricultural fields were exploited continuously, yet ancient farmers had to confront the environmental hazards of occasional intensive floods, successive years of drought, and a constant process of loess accumulation and erosion. The constant maintenance and repair of fields necessitated an investment of labor. However, it seems that the expansion of ancient agriculture was part of the natural growth and development of Byzantine settlements in the Negev, and not the outcome of planned government enterprise. The agricultural systems were abandoned in the course of the 11th century a.d. and sporadically reused by pastoral nomads.     

Methods for assessing stormwater management at archaeological sites: Copan Ruins case study

Archaeological sites may be discovered by fortuitous soil erosion, but their protection requires deliberative stormwater management plans and estimates of runoff volumes. This paper uses the Maya site of Copan, Honduras to demonstrate widely applicable methods to estimate runoff, including use of satellite rainfall data processed by single parameter models. Our analysis compares present day estimates of runoff and erosion with those of two historic periods, 900 A.D during peak Maya occupation of the Great Plaza, and 1800 A.D. prior to excavation when the site was mostly forest covered. For each period, the watershed area, soil, land cover, and rainfall data were used with a single parameter Curve Number model to estimate the runoff volume for annual to decadal storms. The maximum runoff depth and erosive potential in conveyance channels was then computed with the HEC-RAS model. The models did not predict runoff would occur for the forested period of 1800 A.D., but predicted that runoff for 900 and post-1800 A.D was large enough to cause the erosion observed in the drainage channel today. Our results provide runoff magnitudes that demonstrate the need for Copan Maya designed stormwater removal infrastructure described in earlier archaeological analysis. The need for stormwater removal was also designed into the wet Maya site of Palenque, while stormwater capture and storage was designed into the Maya sites of Tikal, a drier site due to local drainage characteristics and water availability. Methods used in stormwater runoff analysis can empower communities and managers to develop scientifically and culturally appropriate non-structural management methods to conserve archaeological sites.