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排序方式: 共有2057条查询结果,搜索用时 15 毫秒
1.
泉州“生态连绵带”规划建设作为一种新的生态网
络空间形式出现,虽然已经在生态空间连续、居民日常可达、
功能构成复合、景观形式优美、经济效益显著等方面取得一定
的成效,但仍然存在较多可以优化提升的空间。为更好地开展
“生态连绵带”项目实施,通过深入调查研究,并运用AHP
分析法和李克特量表双重科学的评估体系,对已完成的若干泉
州“生态连绵带”示范项目加以评估,确定出示范项目中规划
建设效果最佳的项目,再从其生态保护修复、园林景观营造、
可持续发展理念及历史文化展示等方面的关键技术和难点重点
进行研究分析,为泉州“生态连绵带”后续规划建设提供理论
依据与技术支撑。 相似文献
2.
拉萨市地处高寒地区,自身生态环
境脆弱,文章通过改进的三维生态足迹模型
测度拉萨市2009—2018年自然资本的动态变
化,并用偏最小二乘回归法对变化的驱动因
素进行分析,为拉萨市正确处理资源利用与
经济社会发展之间的关系提供科学依据。结
果表明:一、2009—2018年,拉萨市人均生
态足迹呈先下降后波动上升的变化趋势,人
均生态承载力持续下降,拉萨市自然资本供
需矛盾增加,逐渐由盈转亏;二、足迹深度与
足迹广度表明流量资本已经无法满足生产生
活需求,拉萨市发展对存量资本的依赖性增
强;三、从用地类型来看,草地、水域与建筑
用地处于流量资本占用状态,耕地是资本存
量消耗的主要方式,林地处于两者之间的过
渡阶段;四、社会投资、消费水平以及产业结
构中的第三产业发展对自然资本的利用有显
著的驱动作用。 相似文献
3.
山区高环境空间异质性对于生物多样
性维持具有重要支撑作用,生物多样性是乡村
绿色发展的重要基础资源。生态振兴是山区乡
村振兴的重要发展方向,其中生物多样性保育与
可持续利用已成为乡村生态振兴的重要途径。西
南武陵山区是中国生物多样性热点区域,丰富而
独特的生物多样性为武陵山区乡村生态振兴奠
定了良好基础。本文以地处武陵山区的重庆市
石柱县桥头镇为例,基于其“林—草—湿”一体
化的优良生态本底和丰富独特的山地生物多样
性资源,针对山区立体环境特征、生态资源禀赋
和生物多样性现状,在探讨其山地生物多样性
特征的基础上,提出了基于生物多样性保育的乡村生态振兴目标、策略及模式,为山地区域从多空间维度、多时空尺度、多产业层次实现乡村生态
振兴提供借鉴。 相似文献
4.
我国国土空间规划体系建设强调资
源保护和统筹,为水生态空间更新从工程型
思维转向生态优先和以人为本提供了难得机
遇。选取新加坡ABC水计划为案例,尝试揭
示其有效提升资源利用效率和生态、社会、
文化等整体效益的途径和动因。在梳理水体
规划理念演变的基础上,解析水生态空间的
管理机构改革与网络治理模式:成立专门的
政府内部工作委员会,制定整体规划框架、
具体实施细则以及相关规章制度以明确权
责,搭建平台实现多部门信息共享和沟通协
商;通过示范项目,培育政府机构、开发商、
公众等多元行动主体间的信任;推行专业人
才计划,建立完善的认证机制和奖惩措施,
调动各主体积极参与日常维护。 相似文献
5.
Zahir Nikraftar Esmaeel Parizi Seiyed Mossa Hosseini Behzad Ataie-Ashtiani 《Journal of Great Lakes research》2021,47(4):955-969
Lake Urmia is the second-largest hypersaline lake in the world. There has been a drastic water level drop of 7.2 m from 1995 to 2016. Beginning in October 2013, the Lake Urmia Restoration Plan (LURP) launched a 10-year program. An increase in water level and a relative improvement in Lake Urmia condition has been observed since 2017. It is an undecided and controversial issue whether the recent positive trend of Lake Urmia has been due to the LURP activities or it is a natural contribution of climate factors variations. To shed some light on this issue, we examine three other lakes, adjacent to the Lake Urmia basin, with similar rainfall variability to investigate their status during the same period. Van (Turkey), Mosul, and Tharthar (both in Iraq), are evaluated as well as Lake Urmia. Three decades of remotely sensed data including precipitation (), water level (), and lake extent () were considered for the mentioned lakes. A significant correlation was observed between standardized , and over the long-term period, especially for the recent three years (2 = 0.63–0.87). We show that the cumulative precipitation in the antecedent months played a major role in the improvement of these lakes' situation but with different time lags (up to 6 months for Van and Mosul lakes and up to 36 months for Lake Urmia and Tharthar lake). These findings could inform the planners of LURP to adopt strategies for achieving a sustainable state of Lake Urmia based on a more realistic outlook. 相似文献
6.
Thomas RAINER 《景观设计学(英文)》2021,9(1):112
The ability of landscape architectural projects to mitigate the worst effects of climate change will depend upon designed ecological systems. These systems will be built with plants. Despite the recognition of ecology as an essential driver of landscapes, the professionals of landscape architecture too often lack the knowledge and practical skills to create robust vegetative systems. New approaches and tools are required. This article outlines principles and methods for designing biodiverse plant systems for urban sites. Planting methods that increase species richness, functional diversity, and spatial complexity are emphasized as a way of developing more resilient plantings. Selecting species with similar evolutionary adaptions to stress, disturbance, and competition—as well as creating multi-layered compositions of diverse plant morphologies—allows designers to create compatible, long-lived plant mixes. To balance the increased visual complexity of diverse plant mixes, the article explores design techniques to make plantings more appealing to the public. The strategies explored here are based on the projects, experience, and research of Phyto Studio, a Washington, D.C. based studio. The methods build on work described in the author’s book, Planting in a Post-Wild World, an exploration of how to create designed plant communities. 相似文献
7.
《Journal of Great Lakes research》2022,48(6):1498-1504
This paper describes the creation of an environmentally conscious community group, the Great River Network, and the role that it has played in the remediation and restoration process as part of one of the Great Lakes environmental programs. Community engagement was initiated in the region as part of the Remedial Action Plan for the Area of Concern at Cornwall/Akwesasne/Massena within the Upper St. Lawrence River. The community group formalised as a network representing 50+ organisations in response to perceived inadequacies in the agency of the community to respond to new environmental concerns outside of the scope of the existing programs. As a grass-roots initiative, the Great River Network has successfully completed remediation and restoration actions of significant value to the environment. These include a series of river clean ups (>42 tonnes of garbage removed), fish habitat restoration, and addressing shoreline erosion issues. Success has been achieved through partnering with a range of organisations, including Indigenous, non-profit, governmental, Conservation Authorities, businesses and industry partners. The action-oriented approach showcases how remediation and restoration led by, and embedded in, the community can result in true revitalization. A simplified framework for adaptive management practices for remediation and restoration efforts that lead to revitalization, including knowledge translation, is proposed. This case study highlights the transformational opportunities that remediation and restoration initiatives can bring. In this instance, the process is intensely local and cooperative and lays the foundation for moving towards a collective impact approach for the region. 相似文献
8.
9.
With the increase of population in big cities, urban industrial districts are constantly seeking new development to realize the conversion from single-functional to multifunctional systems, to equip the city with diverse public spaces. The Port of Houston operates at the dynamic confluence of industry, transportation, and ecological systems, and has been a major driver of Houston’s economic growth over the last century. However, behind the prosperous economic growth, the port suffers from the isolation with the surrounding communities. Based on the “2045 Port Houston Master Plan,” the Landscape Planning and Design for the Port of Houston project focuses on urban space activation and ecological environment restoration through landscape planning and design methods, while facing the challenges of ecological environment, urban spatial pattern repositioning, and other urban issues. The project is expected to build an economically, socially, and ecologically healthy industrial waterfront zone. Port Houston, beyond its primary function as an economic driver, becomes a more visible and substantial force in urban governance of advancing the region’s activation and resilience. 相似文献
10.
基于生态安全格局与韧性城市发展
间的耦合诉求,提出“源—流—汇”三维生
态韧性评价方法,并使用2005—2017年天津
市TM/ETM+影像和ASTER GDEM数据,
通过韧性源识别、生态足迹核算及最小累积
阻力模拟分别对三种韧性指数进行分析。结
果表明:“源—流—汇”生态韧性评价法能
有效测度城市的韧性强度,三种韧性指标的
组合共同决定城市生态安全格局的稳定性;
天津市中心城区各组团韧性强度空间分布
不均,三项指数对城市整体生态韧性水平的
影响各异,其中韧性源指数是生态安全阈值
划定的条件,应保持在1.5<Ts>2的范围内;
韧性流指数是城市形态弹性调节的标准;韧
性汇指数是城市空间安全扩展的瓶颈,Td>
0.35下的增量建设会突破生态环境容量;并
借此提出天津市生态韧性提升策略。 相似文献