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   8800篇
  免费   587篇
  国内免费   57篇
财政金融   146篇
工业经济   100篇
计划管理   742篇
经济学   1239篇
综合类   644篇
运输经济   58篇
旅游经济   78篇
贸易经济   322篇
农业经济   5359篇
经济概况   756篇
  2024年   29篇
  2023年   186篇
  2022年   214篇
  2021年   238篇
  2020年   443篇
  2019年   263篇
  2018年   301篇
  2017年   408篇
  2016年   386篇
  2015年   320篇
  2014年   543篇
  2013年   510篇
  2012年   637篇
  2011年   733篇
  2010年   671篇
  2009年   564篇
  2008年   441篇
  2007年   525篇
  2006年   529篇
  2005年   402篇
  2004年   336篇
  2003年   242篇
  2002年   166篇
  2001年   117篇
  2000年   83篇
  1999年   47篇
  1998年   20篇
  1997年   17篇
  1996年   12篇
  1995年   3篇
  1994年   6篇
  1993年   6篇
  1992年   6篇
  1991年   3篇
  1990年   2篇
  1988年   2篇
  1986年   1篇
  1985年   12篇
  1984年   16篇
  1983年   1篇
  1982年   2篇
  1981年   1篇
排序方式: 共有9444条查询结果,搜索用时 359 毫秒
11.
According to everyone average welfare value of land resources; this paper constitutes the base line of glebe usufruct deal value by analyzing the factors, which are affecting glebe usufruct deal value. Having adopted share's quotient of ownership and contracting power, the paper erects assigning mechanism to the income of glebe deal. Because of the share dynarnicity being adopted which shows the flexible strong points, the shares of ownership and contracting power avoid many unnecessary otiose disputes on income of glebe deal, adding the stability to the glebe usufruct deal. It is beneficial to the freedom flow and validity manufacture factor installment and also to the nonagricultural changing course.  相似文献   
12.
2003年7月以后,中央政府三令五申,不准滥征耕地,大肆圈地的势头得到遏制。但违规征地没有止息,耕地仍在减少,形势不容乐观,仍须从严控制。  相似文献   
13.
重庆市城市土地经济效益评价   总被引:5,自引:0,他引:5  
从产出和投入两方面构建城市土地经济效益评价的指标体系,采用层次分析法对重庆城市土地的经济效益进行评价,可知:重庆城市土地的经济效益总体水平较低、波动较大,重庆城市近年来投入偏高影响了土地经济效益,而且重庆城市土地利用的集约化水平不高.  相似文献   
14.
The concept of “inducing growth” is typically considered an adverse consequence of a project on the land use system. In certain instances, however, the desire to induce growth and foster land use change is a focus of land use policy. Such is the example of the Appalachian Highway Development System (AHDS) program initiated by the Appalachian Regional Commission (ARC) during the late 1960s. With the goal of providing highway infrastructure to improve assess to a geographically isolated and historically impoverished region, the ADHS has added nearly 3000 miles of highway to the Appalachian landscape. The degree to which highway investment has contributed to regional growth remains a controversial point and tractable methods to quickly assess landscape change given a project of this magnitude are elusive. In this paper a portion of the AHDS trending through southern Ohio is examined using data acquired from the Landsat series of satellites. Beginning with a pre-highway condition in 1976, a 26 year time horizon, concluding in 2002, was analyzed based on a post-classification change detection methodology. Results of this investigation revealed slight, yet significant, levels of urban expansion within a 10 km corridor along the path of AHDS Corridor D/State Route 32. Beyond this buffer zone the land use system evidenced more stability, suggesting that as distance increased from Corridor D/State Route 32, reduced accessibility also reduced the attractiveness of land for urban uses. Relating these results back to the infrastructure investment policies of the ARC demonstrates that growth did result from the construction of Corridor D and supports previous findings that land development based on highway construction is extremely time-sensitive.  相似文献   
15.
江苏省耕地保护区划研究   总被引:1,自引:0,他引:1       下载免费PDF全文
文章以江苏省58个县级行政区为区划单元,应用主成分析法得出影响耕地保护的4个主成分,在此基础上应用聚类分析法初步得出耕地保护区,再结合定性分析最后确定六大耕地保护区。从区划结果看,与江苏省综合农业区划相一致,与客观实际能很好地吻合,说明应用综合数值分析模型研究耕地保护区划是成功的。最后,对得出的六大耕地保护区进行了简要的分析,为有计划分区制定耕地保护政策、措施提供了理论基础。  相似文献   
16.
The Indian and Pakistani banking industry is said to have an excessive use of labour due to the significant market share of government owned banks. Both countries have undertaken a process of regulatory reform to bring about market discipline in the usage of inputs and to increase the labour use efficiency and productivity. The focus of this paper is the estimation of productivity and efficiency of labour use in the banking sectors of the Indian sub-continent. The results show that the efficiency of labour use across the Indian sub-continent is improving over time and that foreign banks are more efficient compared to domestically owned banks in their usage of labour.  相似文献   
17.
The paper proposes a broad argument that the end of state–led development from the 1970s coincided with (i) the final wave of major redistributive land reform, and its place within transitions to capitalism, that lasted from about 1910 to the 1970s, and (ii) the beginnings of contemporary 'globalization'. Self–styled 'new wave' agrarian reform in the age of neo–liberalism, centred on property rights, is unlikely to deliver much on its claims to both stimulate agricultural productivity and reduce rural poverty. The reasons are grounded in the basic relations and dynamics of capitalism, and how these are intensified and reshaped by and through globalization. Understanding these processes, with all their inevitable unevenness, requires (i) recognizing that the historical conditions of the 'classic' agrarian question no longer apply, and (ii) developing the means to investigate and understand better the changing realities facing different agrarian classes within a general tendency to the concentration of capital and fragmentation of labour, including how the latter may generate new agrarian questions of labour.  相似文献   
18.
Tony Banks 《World development》2003,31(12):2129-2142
This paper contributes to the debate over land tenure in rural China by extending its spatial coverage to the country’s extensive rangeland regions. Key characteristics of pastoral tenure, identified from field appraisals in western China, include group tenure and fuzzy boundaries. Although these characteristics give rise to efficiency concerns, from a new institutional economics perspective they also facilitate the realization of certain benefits, benefits that could represent opportunity costs of further exclusiveness. The strengthening of rangeland co-management may constitute a more appropriate path to institutional improvement than the establishment of the household ranch, the current goal of national rangeland policy.  相似文献   
19.
特殊的土地利用和管理特点使得城乡结合部用地矛盾尤为凸现.人口、城市发展、集体经济发展是造成土地供求紧张的直接原因,但是管理制度的不健全则是导致和加剧矛盾激化的深层次原因.在对北京市城乡结合部土地利用与房地产市场调查的基础上,对北京市城乡结合部的用地矛盾进行分析,并从深层次揭示问题的根源和变化规律.  相似文献   
20.
强化处置闲置地   总被引:1,自引:0,他引:1  
闲置地是当前土地资源利用和管理中值得关注的重要问题。闲置地弊端甚多,严重地威胁了子孙后代的生存和社会经济的可持续发展。闲置地本质上是二元土地制度的产物,也是投机因素作祟的结果。强化闲置地的处置须从改革土地制度、规范地方政府行为、无偿收回闲置地、健全政策法规等多方面努力。  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