全文获取类型
收费全文 | 4213篇 |
免费 | 115篇 |
国内免费 | 66篇 |
专业分类
财政金融 | 108篇 |
工业经济 | 96篇 |
计划管理 | 494篇 |
经济学 | 810篇 |
综合类 | 732篇 |
运输经济 | 2篇 |
旅游经济 | 41篇 |
贸易经济 | 340篇 |
农业经济 | 1149篇 |
经济概况 | 622篇 |
出版年
2024年 | 16篇 |
2023年 | 59篇 |
2022年 | 64篇 |
2021年 | 91篇 |
2020年 | 153篇 |
2019年 | 95篇 |
2018年 | 101篇 |
2017年 | 113篇 |
2016年 | 145篇 |
2015年 | 79篇 |
2014年 | 235篇 |
2013年 | 280篇 |
2012年 | 289篇 |
2011年 | 363篇 |
2010年 | 299篇 |
2009年 | 330篇 |
2008年 | 357篇 |
2007年 | 281篇 |
2006年 | 289篇 |
2005年 | 217篇 |
2004年 | 136篇 |
2003年 | 112篇 |
2002年 | 72篇 |
2001年 | 76篇 |
2000年 | 61篇 |
1999年 | 30篇 |
1998年 | 9篇 |
1997年 | 14篇 |
1996年 | 2篇 |
1995年 | 3篇 |
1994年 | 3篇 |
1993年 | 7篇 |
1992年 | 2篇 |
1991年 | 1篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1984年 | 6篇 |
1983年 | 1篇 |
1981年 | 1篇 |
排序方式: 共有4394条查询结果,搜索用时 281 毫秒
101.
102.
For selected regions of five EU Member States (Bulgaria, Hungary, Poland, Romania and Slovenia), this paper examines the determinants of the commercialisation of (semi)subsistence farms. While subsistence farming has become an important feature of the EU, there is a lack of evidence on its spatial distribution, importance and reasons for persistence. The analysis utilises cross-regional survey data and qualitative interviews. Results suggest the absence of a subsistence poverty trap driven by either farmer perceptions or transactions costs although capital endowment appears to play a significant part. On the other hand the degree of market engagement depends on access costs, which vary with location, households’ productive assets, specialisation, and risk propensity. Implications for land use policy are discussed. 相似文献
103.
Contemporary cities are threatened by urban development decreasing the overall environmental quality and fragmenting natural and agricultural landscapes. As a result of this fragmentation the number of Non Urbanized Areas (NUAs) present in urban contexts is dramatically decreasing. These areas include cultivated land, Abandoned Farmlands, Grassland, Woods and Shrubs that are often located at the peri-urban cities’ fringes. Among NUAs, farmlands and other forms of urban and peri-urban agriculture provide all three major categories of ecosystem services, provisioning, regulating and cultural services. Recently, New Forms of Urban Agriculture (NFUA) have gained increasing attention from researchers for their promising multifunctionality. Incorporating NFUA into the urban environment will thus improve the sustainability of cities, taking advantage of the multiple benefits and services they can provide.This paper presents a method for the characterisation of NUAs in terms of their physical, ecological and social features. These areas are analysed with different criteria and related indicators structured according to a GIS-based Multi Criteria Suitability Model. The proposed model checks the suitability of transformation of the NUAs toward NFUA, thereby enhancing their ecological and social function as well as accessibility and overall connectivity. Different scenarios of spatial configurations for NFUA have been explored with a sensitivity analysis on the values of used indicators. The method was tested for the municipality of Catania, south Italy, an urban context characterised by a relevant shortage of public green spaces and services. 相似文献
104.
在城市进入大规模的拆迁与重整的今天,人类对“家园”的认知尤为重要。“什么环境空间组合才是我们需要的家园,什么样的空间形式才是适合我们居住的呢?”无疑,这是个值得深思和探究的课题。从传统造园的三个基本形式来展开分析解读,并试图找出一条属于全人类的、未来的、生态的、和谐的城市“家园”的发展之路。 相似文献
105.
James Farmer 《Leisure Sciences: An Interdisciplinary Journal》2013,35(5):490-495
This article reflects on aligning leisure research with the local foods movement while placing the local foods movement into the larger framework of sustainability and the fields of leisure and recreation. The local foods movement has persisted during difficult economic times; growth in local foods venues and young people endeavoring to establish small-scale sustainable farms continues to flourish. Given the history of leisure research and its continued success alleviating participation barriers and constraints, the need for leisure researchers to focus on local food systems is imperative and timely. This essay highlights the notion of leisure in living through local foods and the serious leisure aspects of small-scale sustainable agriculture. This article also encourages leisure researchers to explore and assess the relationships between the local foods movement and small-scale farming as embedded in the larger framework of sustainability. 相似文献
106.
Sonwabile Mnwana 《Development Southern Africa》2014,31(6):826-842
Direct control of mineral resource wealth by communities in resource-endowed regions is advocated as a panacea to conflict and fundamental towards attainment of self-determination and local autonomy. Based on the study conducted in Royal Bafokeng and Bakgatla Ba Kgafela, the two prominent, platinum-rich traditional communities in South Africa's North West Province, this article reveals that, although mineral wealth in South Africa's platinum-endowed communities such as Royal Bafokeng is reportedly distributed ‘in the name of morafe’ (‘community’ in Setswana), inadequate participation produces polarised local priorities and tensions at the grassroots level. Community control of mineral wealth is thus likely to paradoxically generate conflict and exclusion at the traditional community level, particularly in contexts where participation in mineral wealth-engendered community development is championed by traditional leaders through customary-derived spaces of local engagement. 相似文献
107.
"以工补农"不能单纯地从同情"三农"态度出发研究"单向的以工补农",而应从深入剖析工业化过程中的工业和农业互动关系出发,积极探索"双向的以工补农"机制。从工业化过程中工农互动机制中寻找到一个"以工补农"机制的新视角,通过构建基于工业化的"农业剩余转化"模型,重点分析工业化过程中的农业剩余转化和农业深化发展动态关系的"以工补农"机制。在工业化过程中,要根据工农关系不同阶段的特征,采取不同的工农互动关系调节方法,即不同的"以工补农"策略,促进工业和农业互动协调发展。 相似文献
108.
文章论述了在知识经济时代,集高新技术为一体的智能化住宅建筑将成为可持续发展的人居环境的主流和趋势。 相似文献
109.
浙江传统制造产业群与专业市场互动发展研究 总被引:1,自引:0,他引:1
浙江传统制造产业群和专业市场之间已形成共生共荣、互动发展的关系,形成了浙江经济增长的长波效应。但面临全球产业转移和产业升级的挑战、高质量商品缺乏配套的市场销售机制的挑战和生产企业集团化与专业市场辐射面之间矛盾的挑战。应施以构建先进制造业基地,形成大产业区与大市场之间的良性互动;加大政府对市场建设的调控力度和形成以功能创新、转型和重组为主旋律的市场新机制,提高整体素质,取得更大的效益。 相似文献
110.
在传统的农业技术条件和涉农供应链管理模式下,典型的涉农链在时间竞争的强化与柔性机制的建立上面临诸多局限和障碍:(1)横亘于涉农供应链两类制造业之间的“速度陷区”.(2)“刚性点阵”.(3)“弱刹车机制”.(4)异构性问题.(5)时间竞争工具的有限性.(6)涉农供应链特殊的物流路径特征模式.上述诸因素综合作用形成了现实中两种常见的涉农链时间反应模式:弱反应模式和高成本反应模式.而现代供应链管理理念指导下涉农供应链时间竞争追求的却是-种有效反应模式.建立涉农供应链时间竞争的有效反应模式是一个复杂艰巨的过程. 相似文献