The Historical Snow Survey of Great Britain: Digitised Data for Scotland

Abstract

Mountain snowline is important as it is an easily observable measure of the phase state of water in the landscape. Changes in seasonal snowline elevation can indicate long-term trends in temperature or other climate variables. Snow-cover influences local flora and fauna, and knowledge of snowline can inform management of water and associated risks. Between 1945 and 2007 voluntary observers collected a subjective record of snow cover across Great Britain called the Snow Survey of Great Britain (SSGB). The original paper copy SSGB data is held by the Met Office. This article details the digitisation of the Scottish SSGB data, its spatial and temporal extents, and a brief example comparison of Met Office snow-lying gridded data. The digitised SSGB data are available from the Met Office authors.     

空间思维观下的山地旅游开发理念刍论——以陕西省镇巴县为例

从空间思维理论出发,探讨空间思维理论在山地旅游开发中应用。通过引入空间思维并剖析它的内涵,在思维对象、思维方式、思维过程等方面对旅游开发进行指导;之后浅析了山地旅游开发理论,归纳出山地旅游开发的理论模式;并进行综合,运用点式思维、线式思维、面式思维、体式思维等空间思维理念模式于山地旅游开发之中;最后以陕西省镇巴县山地旅游开发为例,进行验证。     

高校图书馆馆员继续教育问题初探

信息时代,要求高校图书馆馆员的职能从传统的、单一型的服务转变为更宽泛的、多功能的服务上来,要不断地进行知识更新,使自己的思想观念、知识结构、工作能力都能够适应社会和广大读者的需要。而接受继续教育,则是必要途径。本文有针对性的提出了对不同层次馆员进行继续教育的内容、措施及形式。     

贫困山区旅游地社会—生态系统脆弱性及影响机理

借助社会—生态系统理论与脆弱性分析框架,以恩施州为例,从敏感性与适应性两方面构建评价指标体系,对旅游地社会—生态系统脆弱性进行定量测度,运用地理探测器方法探测脆弱性分异的风险因子与影响机理.结果表明:①研究区脆弱性水平整体处于中等水平,抵御内外部风险的能力仍显不足;②村域脆弱性主要为中、低等脆弱性,各村敏感性与适应性构...     

安徽南陵出土部分青铜器研究

安徽省南陵县是长江下游地区最早而且规模最大的冶炼中心之一,其古代矿冶遗址可上溯至西周晚期。本研究对南陵出土的不同年代和类别的青铜器样品进行了金相检测及合金成分定量分析。结果表明,只有容器存在铜铅二元合金和铜锡铅三元合金,但是热锻淬火的容器却不含铅,含锡量恰好位于适合该工艺操作并具有良好性能的区间。兵器、工具、车马饰均为铜锡二元合金,说明当时的工匠对于合金成分配比与性能的关系有明确的认识。越式鼎腹部样品具有热锻淬火马氏体组织,同样的金属结构还见于汉代铜锣等乐器、峡江地区战国中晚期青铜剑、江都大桥镇南朝青铜器窖藏出土的多件青铜容器,而镇江地区出土吴国青铜戈则具有铸造淬火组织,工艺稍有差别。这些器物中发现高锡青铜淬火组织不是偶然的,高锡青铜热锻淬火技术至少可以上溯至春秋战国时期,用以改善高锡青铜的机械性能。     

基于APSO—SVR的山岳风景区短期客流量预测

根据山岳风景区短期客流量小样本、非线性等特征,本文提出基于自适应粒子群算法（Adaptive Particle Swarm Optimization,APSO）的支持向量回归（Support Vector Regression,SVR）模型,融合SVR处理小样本、非线性预测特性和APSO优化SVR参数的能力对山岳风景区短期客流量进行预测。来自山岳风景区黄山2008年～2011年暑期相关日数据的验证结果表明：与PSO—SVR、GA—SVR和BPNN等模型相比,APSO。SVR模型的预测准确性更高、误差更小,是进行山岳风景区短期客流量预测的有效工具。     

Farmer-fishermen: interior lake fishing and inter-cultural and intra-cultural relations among coastal and interior Sámi communities in northern Sweden AD 1200–1600

Although the productive fishing grounds had long attracted the Crown and the Church to northern Sweden, it was not until the sixteenth century that the judicial and fiscal powers of the Swedish Crown were exercised in full. Records show that the regular fishing in interior lakes formed a prominent enterprise among coastal farmer communities. This paper examines the social and economic context of farmers engaged in interior fishing with respect to the internal organization of village communities, principles of private and collective ownership, land-use strategies and inter-community relations. There are no a-priori assumptions about the coastal population being “Swedish”. Instead of applying ethnonyms, the terms “farmer” and “coastal” are used throughout the paper. The main area of investigation includes the coastal area of northernmost Sweden and the western parts of Finnish Lapland. The study shows that interior lakes fitted into village resource areas, long sanctioned by usage, and that usufruct belonged to village members collectively. A large part of the fishing lakes are situated in interior Sámi territory. Fishermen were internalizing Sámi place names, implying close relations between the groups. Archeological investigations point to subsistence strategies including systemic interior lake fishing being established before AD 1200. The authors propose that coastal and interior communities should be perceived as two economic strategies representing indigenous and pre-colonial land-use schemes.     

Identifying high-status foods in the archeological record

More than providing simply nutritive value, food in human societies can be endowed with great social weight. Aspects of any given food system inform, and are informed by, a variety of social, economic, religious, historical, ecological, cultural, and political processes. Moreover, food systems are often intentionally designed and executed to communicate key aspects of a consumer’s identity including class or social status. The manipulation of food systems on the part of socio-political elites or high status individuals is but one example of this phenomenon, the appearance of which is a correlate of increased socio-political hierarchy. As food can come to be used by elites as a socio-political tool in stratified societies, the temptation to use archeologically recognizable differences in foodways as a means of understanding the origin, nature, and functioning of processes of stratification is strong. The obvious difficulty lies in developing theoretically informed methods that reckon food system differences in ways that enable scholars to identify those foods that may have been particularly imbued with social meaning. In this paper, we propose a metric for the identification of elite foods (or, indeed, socially valued foods) using the types of data typically available to archeologists. Based on these proposed criteria, we attempt to unravel the complex and politically charged food system of the stratified societies of the pre-Columbian Greater Antilles with an eye towards refining our understanding of the development and maintenance of prestige and institutionalized power therein.     

Hazelnut economy of early Holocene hunter–gatherers: a case study from Mesolithic Duvensee,northern Germany

Throughout the greater part of human evolution in Europe, use of plant foods is invisible and thus might have played a secondary role in nutrition. Ecological changes at the beginning of the early Holocene provoked innovations in early Mesolithic subsistence, focusing on the rich plant resources of the increasingly forested environment. High-resolution analyses of the excellently preserved and well-dated special task camps documented in detail at Duvensee, Northern Germany, offer an outstanding opportunity for case studies on Mesolithic subsistence and land use strategies. Quantification of the nut utilisation demonstrates the great importance of hazelnuts. These studies revealed very high return rates and allow for absolute assessments of the development of early Holocene economy. Stockpiling of the energy rich resource and an increased logistical capacity are innovations characterising an intensified early Mesolithic land use, which is reflected in the stable tradition of uniform seasonal settlement patterns at early Mesolithic Duvensee. The case study reveals characteristics in early Mesolithic subsistence and land use that anticipate attributes of the Neolithic economy.     

考古发掘中的地层剖面薄层标本的揭取技术

考古发掘中的地层剖面在历史研究中占有重要地位。在北京琉璃河遗址进行的地层剖面薄层标本揭取,使用了日本奈良化财研究所开发的新材科和技术,经刷树脂、贴纱布、揭取、水洗、表面处理等步骤完成。这次揭取工作的成功,为更精确的记录、保存、研究及展示考古发掘资科提供了新方法,在考古发掘工作中使用前最广泛。