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1.
2012年7月至9月,为探索麦类作物和外来畜养动物的传播途径,青海省文物考古研究所对位于青海互助土族自治县加定镇加塘村的金禅口遗址进行了考古发掘。共揭露齐家文化时期房址5座、灰坑15个、墓葬1座和陶窑2座,出土陶器、石器、骨器、铜器、木器等200多件及大量动、植物遗存。本文对其中的典型遗存进行了详细介绍。通过与邻近地区的同类文化遗存进行比照,本遗址出土的齐家文化典型器型与其存在许多相似之处。选取炭化植物种子10个样品,小麦、大麦、粟和黍,经北京大学考古文博学院碳十四实验室进行测年,数据结果的年代范围在2200~1750BC。综合考虑基本上反映了金禅口遗址齐家文化聚落的绝对年代。遗址中出土的众多细石器和大量动物骨骼反映了发达的畜牧业和狩猎经济。而通过对遗址中采集的土样轻浮物进行鉴定,显示碳化农作物种子10163粒,占出土碳化植物种子总数的90.4%,表明采集业是当时经济生活的重要补充,但农业仍是主要的生计方式。由此可见,金禅口遗址所处的自然环境决定了齐家文化时期先民的生业模式复杂多样。  相似文献   
2.
Despite decades of efforts to curb the global supply of illicit drugs and significant shifts in how those efforts are designed and implemented, illicit crop cultivation persists. In this paper, we examine state and international development efforts to eradicate coca in Peru, opium poppies in Laos, and cannabis in California, USA and the ever-changing discourses used to justify and design these interventions. Scholarship in political geography frames eradication interventions as serving ongoing efforts to extend state and market power into the regions in which illicit crops are grown and to marginalize the people growing them. We find that environmental discourses are increasingly used to assert the need for continued illicit crop interventions, and that these discourses articulate with historical and ongoing portrayals of smallholders as environmentally destructive. Environmental harm narratives that justify enforcement and eradication efforts under the guise of protecting ecosystems from illicit crop farmers can become self-fulfilling prophecies when they disproportionately impact smallholders and push them into marginal geographic and economic positions. Our cases illustrate that environmentally-justified interventions drive cycles of marginalization for illicit crop smallholders, often conditioned by race or ethnicity, who are then portrayed as environmental criminals. Meanwhile, new state-sanctioned spaces of opportunity and profit are created for more powerful actors who are able to capitalize on the removal of illicit crop growers from the land.  相似文献   
3.
Fresh food markets have been a fixture of the social and economic landscape of urban and rural PNG since colonial times. They were often the first points of engagement with the market economy, especially for women, who as small‐scale producers, sold surplus produce from their food gardens located on communally‐owned land. Although local food markets have remained an important livelihood for women, the later adoption and expansion of perennial export cash crops like coffee and cocoa overshadowed food production for local markets as men dominated export crop production on land alienated from communal ownership for decades or permanently. New forms of social relations of production and more exclusive forms of land tenure emerged to accommodate export crop production that were very different from those governing the production and marketing of fresh food. Market values and a trend towards individualisation of production with less capacity to mobilise labour through reciprocal labour exchange networks have characterised export crop production. With the income benefits captured largely by men, women began redirecting their labour to fresh food production where they were able to exercise more control of production and income while still mobilising labour through indigenous labour exchange arrangements. Attempts by men to appropriate the income of women and sons’ labour in export cropping were greater during flush periods when income levels were high, and they were less likely to attempt to appropriate this income in low crop periods when incomes were lower. However, with the recent emergence of female entrepreneurers earning relatively large sums of money in large‐scale, profit‐driven vegetable production, the moral frameworks governing food production are coming to resemble those governing export crops, and making labour more difficult to mobilise. Despite women being key players in these changes, we argue there is an emerging risk that men will attempt to assert control over this income or move into vegetable production themselves and possibly marginalise women in the process.  相似文献   
4.
Maya Manzi 《对极》2020,52(6):1794-1814
In this paper, I examine the speculative dimensions of biodiesel production in Northeast Brazil under the National Program for the Production and Use of Biodiesel (PNPB), by focusing on the case of castor oil plant (Ricinus communis) in semi-arid Bahia, a promising flex crop that was said to generate social, environmental and economic benefits, especially for the historically marginalised Northeast peasantry. I argue that speculative practices over castor have relied on state policies and discourses as well as biophysical and biotechnological (im)materialities that are transforming agrarian relations in ways that compromise peasants’ control over their (re)productive systems while promoting the expansion of the agroindustrial frontier. By examining the everyday, performative and place-based character of speculative biodiesel practices and their uneven and contested socioenvironmental implications, this paper contributes to current political ecology debates on the nexus between agroenergy development, nature’s capitalist valuation and rural dispossession.  相似文献   
5.
河南登封王城岗遗址土壤样品的植硅体分析   总被引:1,自引:0,他引:1  
作为分析古代人类与植物关系的手段之一,植硅体分析在研究考古遗址中的人类活动、栽培作物及加工方式等方面,都越来越显示巨大的潜力。对王城岗遗址部分土壤样品的植硅体分析发现,在城墙夯土、城壕填土乃至城墙附近灰坑的土壤中,植硅体的密度低可能与城墙建筑有密切关系;王城岗遗址中发现的水稻、谷子的植硅体,表明当时聚落内有这两种农作物,并可能在城墙附近进行了脱壳加工。  相似文献   
6.
Domesticated rice, Oryza sativa L., though a perennial, is nowadays usually cultivated as an annual. This has led a number of commentators to misinterpret the historical record. The older view that rice was domesticated around the Bay of Bengal and in parts of mainland Southeast Asia has been replaced by competing views of earliest domestication in that region and in the Yangzi valley. Botanical considerations point clearly to the retention of perennial characteristics while archaeological and historical evidences point to cultivation with more than a single harvest from an initial planting – the practice of ratooning. Evidence is reviewed briefly for China and more extensively for Southeast Asia. Modern field evidence is used to support the notion that ratooning was probably more widespread in the past and that this practice may represent an early phase in the history of rice agriculture in Southeast Asia as it does in China.  相似文献   
7.
Starch analysis is proving particularly useful in tropical regions like the central Pacific where crop inventories are often dominated by starchy fruits and tubers and recovery of macrobotanical remains is rare. Analysis of 23 shell tools from the Marquesas Islands provides direct evidence for translocation of five traditional crop plants. Four taxa derive from the western Pacific, including Artocarpus altilis (breadfruit), Piper methysticum (kava), Colocasia esculenta (taro), and one or more species of Dioscorea (yam). The fifth taxon, the South American Ipomoea batatas (sweet potato), dates from the 14th century AD onward and constitutes the earliest record of this cultigen in the archipelago. The occurrence of sweet potato starch suggests that this crop plant may have been more important than usually is assumed, while the limited recovery of breadfruit starch, the main Marquesan food plant at western contact, requires further investigation. The starch residues also inform on tool use, demonstrating that shell tools ethnographically associated with specific crops (e.g., “breadfruit peelers”) had more generalised functions. This study is a further demonstration of the potential of starch analysis to provide important information on the history of crop introductions, on-site activities, and artefact use.  相似文献   
8.
关于夏商周文明形成时期农业经济特点的一些思考   总被引:4,自引:1,他引:3  
黄河流域地区是粟和黍的起源地, 也是夏商周文明的诞生地, 由此导致了夏商周文明的农业基础应该是以粟和黍为主要粮食作物的传统认识, 但事实是否如此是一个值得认真讨论的问题。结合甲骨文的记载, 并通过对该地区自然生态环境背景、农作物的生长习性以及现有的考古资料的综合分析, 本文认为, 黄河流域地区农业经济的发展在夏商周时期出现了新的变化, 粟和黍的主导地位开始受到冲击, 麦类作物已经传入, 稻谷在夏商周文明形成过程中发挥了重要的作用。  相似文献   
9.
Analysis of plant microfossils (pollen, phytoliths, starch grains and xylem cells) was carried out on 12 soil samples from a variety of pre-contact archaeological features in South Kona within a portion of what has been termed the Kona Field System, on the Island of Hawaii. The oldest radiocarbon ages of the sampled deposits are 1300–1625 AD and 1310–1470 AD. The pollen and phytolith evidence suggests a change from more to less trees and shrubs in the area as a result of human activity. We found phytoliths of banana (Musa sp.) leaves in most and starch grains and xylem cells of tuberous roots of c.f. sweet potato (Ipomoea batatas) in all of the samples, suggesting that the sampled features were associated with these crops and that both crops were cultivated intensively within the study area. Higher concentrations (volumetric) of starch and xylem in samples from older deposits suggest that cultivation was more intensive then. The apparent absence of starch and xylem remains of other tuberous crops archaeologically identified elsewhere in Polynesia suggests that tuberous cropping within the study area was mono-specific.  相似文献   
10.
The spread of agriculture in the Iberian Peninsula is documented from at least ca. 5600–5500BC, although botanical data are absent or very limited for large areas. Archaeobotanical information shows from the beginning an imported agrarian system with a great diversity of crops: hulled and naked wheats and barleys, legumes such as pea, lentil, fava bean, vetches and grass peas, flax and poppy. This diversity of plants with different requirements, processing and uses, implies that the first farmers quickly imported or acquired a wide range of agrarian knowledge. Regional and inter-site agrarian differences are discussed in relation to factors like ecology, culture, use of the cultivated plants and management of the risk of crop failure. The adoption of farming resulted in significant ecological, economic, dietary, and social changes for the Neolithic people of Iberia.  相似文献   
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