首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   359篇
  免费   14篇
  2024年   1篇
  2021年   3篇
  2020年   13篇
  2019年   7篇
  2018年   15篇
  2017年   14篇
  2016年   10篇
  2015年   15篇
  2014年   9篇
  2013年   43篇
  2012年   36篇
  2011年   26篇
  2010年   21篇
  2009年   19篇
  2008年   23篇
  2007年   26篇
  2006年   16篇
  2005年   16篇
  2004年   15篇
  2003年   12篇
  2002年   7篇
  2001年   5篇
  2000年   12篇
  1998年   2篇
  1996年   1篇
  1992年   1篇
  1991年   1篇
  1990年   1篇
  1989年   1篇
  1988年   1篇
  1982年   1篇
排序方式: 共有373条查询结果,搜索用时 15 毫秒
71.
阳畔墓地是内蒙古中南部长城沿线地带发现的又一处东周时期游牧文化墓地,该墓地流行洞室墓、殉牲,并出土有青铜带扣、短剑、刀、管状饰、环等。与和林格尔县新店子墓地有相近之处,洞室墓与长城沿线西段的甘宁地区东周时期的墓葬存在文化、技术和人种上的交流关系。  相似文献   
72.
ABSTRACT

We integrate functional weed ecology with crop stable carbon and nitrogen isotope analysis to assess their combined potential for inferring arable land management practices in (semi-)arid regions from archaeobotanical assemblages. Weed and GIS survey of 60 cereal and pulse fields in Morocco are combined with crop sampling for stable isotope analysis to frame assessment of agricultural labour intensity in terms of manuring, irrigation, tillage and hand-weeding. Under low management intensity weed variation primarily reflects geographical differences, whereas under high management intensity fields in disparate regions have similar weed flora. Manured and irrigated oasis barley fields are clearly discriminated from less intensively manured rain-fed barley terraces in southern Morocco; when fields in northern and southern Morocco are considered together, climatic differences are superimposed on the agronomic intensity gradient. Barley δ13C and δ15N values clearly distinguish among the Moroccan regimes. An integrated approach combines crop isotope values with weed ecological discrimination of low- and high-intensity regimes across multiple studies (in southern Morocco and southern Europe). Analysis of archaeobotanical samples from EBA Tell Brak, Syria suggests that this early city was sustained through extensive (low-intensity, large-scale) cereal farming.  相似文献   
73.
Humans are ‘fire creatures’ that have used fire for millennia to shape local environments to diverse purposes. Our capacity for combustion has also forced global climatic changes and rendered the planet increasingly flammable, creating the conditions for progressively higher impact bushfires now and into the future. Meanwhile, governments in fire-prone countries such as Australia have continued to allow settlements to be established (and re-established) in wildland–urban interfaces. Like other ‘natural hazards’, bushfire is thereby a social phenomenon bound up with human values, practices and decisions. But, while studies of the social dimensions of ‘natural hazards’ are steadily rising, this scholarship has rarely addressed natural hazard management practitioners directly, precisely those authorised and entrusted to intervene in the distribution of hazard probabilities and consequences. This paper seeks to help remediate this research gap, illustrating how cultural, ecological, economic and political factors thoroughly condition hazard management and modes of intervention. Drawing on a case study in the Northern Territory’s Greater Darwin region, this paper suggests not only that examining such sociocultural realities provides new insights into hazards and their distribution, but also that attention to such issues is crucial to understanding our flammable future in the Anthropocene.  相似文献   
74.
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.  相似文献   
75.
邸乘光 《安徽史学》2015,(1):101-107
从1978年9月访朝归来到12月举行党的十一届三中全会,从"北方谈话"到"‘三中全会’主题报告",邓小平不仅明确提出了改革开放的时代课题,而且多方面地阐明了为什么要实行改革开放、要在哪些方面改革开放和如何实行改革开放等重大问题,实际完成了中国改革开放决策的酝酿,为"三中全会"最终作出实行改革开放的伟大决策,做好了充分的思想理论准备。回顾我国改革开放决策的酝酿过程,重温邓小平当时关于改革开放的论述,对在新的历史起点上全面深化改革开放具有多方面的意义。  相似文献   
76.
77.
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.  相似文献   
78.
In 2009, the Sino-Japanese Joint Archaeological Team recovered the large-sized rammed-earthBuilding Foundation Ⅲ in the south of the Northern Wei palace city. This foundation is located to the north of ChangheGale and Building Foundation Ⅱ and the due south of Taiji Hall. It is the main body of a hall-typed architectureconsisting of the large-sized rammed-earth foundation, the rammed-earth partitions and column network composed oframmed-earth plinths and column pits. The side doors on the eastern and wester...  相似文献   
79.
东汉“天禄、辟邪”刻字分别见于宗资和州辅墓前石兽。依据相关资料进行研究发现,《汝帖》“天禄、辟邪”刻字是以宗资墓前石兽膊间拓本为底本,又摭拾了州辅墓碑间残剩十字摹刻入帖,因此《汝帖》辑存了古碑书法善之善者。  相似文献   
80.
改革开放以来,陕北乡村发生了巨大的变化,由单一的农业经济向多元经济转变,城镇化速度加快,农村社会阶层出现分化,社会大环境的变化使重新兴盛的庙会既继承了传统庙会的功能,同时又表现出以庙会活动为中心形成社区文化共同体、从传统神灵信仰转换为社会需求的表达、在维护乡村秩序中扮演了重要角色、开始在社区公共事务中发挥作用以及促成民间庙会与地方政府的互动等新的特点。对其作出全面、客观的评估,对推动西部大开发,促进农村社会的稳定和发展,将会起到积极作用。  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号