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1.
As the impact of green space shrinkage in urban centers becomes obvious, local and regional authorities must adopt environmental planning policies that can help create new green areas to ensure a good quality of life for citizens, along with the rehabilitation of the natural environment. One approach is the promotion of green infrastructure on buildings, including multi-dwelling apartment buildings. In order to effectively promote green infrastructure on buildings, it is essential to comprehend public attitudes toward green infrastructure, so that suitable and effective strategies can be implemented by policy makers. In this study, eight hundred respondents were asked to provide their views on green infrastructure on buildings, on construction that should take place on blocks of apartments in order to accommodate green infrastructure and on the related benefits that may arise from creating green spaces on buildings. A structured questionnaire and stratified sampling were used for the interviews, which were conducted with apartment owners in two regional units of Athens. The results showed that most citizens are willing to proceed with the installation of a green roof, trellis or vertical garden, in order to improve the aesthetics and functionality of the building they live in. Most of the respondents are not familiar with the energy savings that may occur from the installation of a green roof, vertical trellis or garden and wish for a subsidy from the state in order to implement green building solutions. To conclude, the participants in our study are not environmentally aware, since they are not interested in energy conservation but only about the aesthetics of their building; furthermore, they expect to receive financial support from the state in order to make any changes to their home. 相似文献
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邹丹丹 《北京农业职业学院学报》2020,(6):32-37
在乡村振兴与农业现代化发展大背景下,小农户经营面临前所未有的挑战。对福建省漳州地区小农户发展现状的观察发现,受主客观条件制约,小农户在现代农业发展中面临缺乏面向大市场的议价决策能力,现代科技运用滞后,与大资本间利益连接机制不稳定,农业社会化服务体系不健全等一系列困境。因此,要通过提高小农户组织化程度,拓宽市场渠道,提升小农户发展现代农业的能力,完善农业社会化服务体系,拓宽农业功能等助力小农户融入中国农业现代化进程。 相似文献
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Culverts reduce connectivity for aquatic animals by being both a hydraulic and physical barrier. However, altered light intensity may also be a behavioural barrier to fish movement, especially for diurnal species that have adapted to moving when it is light. We propose that knowledge of optical physiology and fish behaviour, two important mechanisms underpinning movement, can inform efforts to improve fish movement through culverts. We firstly review the sensory systems of fish with reference to visual sense and explore how this affects fish movement. We then highlight theoretical knowledge that can help us understand fish behaviour and the potential mismatch between the conditions under which fish have evolved and altered conditions within culverts. We describe potential knowledge gaps and directions for future research to improve our understanding of how culverts may affect fish movement. Finally, we explore the potential costs and ecological benefits of different mitigation options to identify those with the most promise for managing the light environment in culverts to facilitate movement. For researchers and managers exploring this subject, we suggest an approach that: (a) identifies light requirements for movement by different species, (b) tests movement under different light conditions and (c) considers an integrative assessment method for testing fish behaviour around culverts. Understanding how optical physiology, fish behaviour and culvert design influence fish movement can improve connectivity for a range of species. 相似文献
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郑书高 《畜牧兽医科学(电子版)》2021,(4):182-183
近年,畜牧养殖业蓬勃发展,过去的区域化散养已经基本不存在,养殖结构逐渐向集约化、一体化、规模化过渡,养殖规模也逐渐增大。养殖副产品肉、蛋、奶等极大满足了人们的生产生活,养殖中产生的尿液、粪污对生态环境造成极大影响。为促进规模化养殖实现绿色健康发展,该文分析规模化畜牧养殖对生态环境的破坏及防治措施。 相似文献
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星球城市化:风景园林的新理论基础 总被引:1,自引:1,他引:0
星球城市化是建立在对城市/非城市二元论批判上提出的立足全球尺度的城市理论,其对非城市区域的关注与思考,以及操作性景观等概念的提出,均论证了这一城市研究理论与风景园林学科的密切联系。以星球城市化为基础发展起来的一系列新思潮近年来对风景园林的教育与实践产生了重要影响,星球生态学、星球建筑学以及星球基础设施等新概念的提出为学科带来了新的思考角度与操作手法,同时也促进了风景园林与多个学科之间的良性交流与补充。在星球视野下的风景园林学科将凭借其综合性与包容性,在全球人居环境营造中承担更重要的责任。 相似文献
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Fish functional diversity responses following flood pulses in the upper Paraná River floodplain 下载免费PDF全文
Matheus T. Baumgartner Anielly G. de Oliveira Angelo A. Agostinho Luiz C. Gomes 《Ecology of Freshwater Fish》2018,27(4):910-919
Flood pulses are the main force driving the dynamics of aquatic communities in floodplains. The responses of communities to environmental changes following flood pulses usually demand a time lag to appear and reach the climax. We assembled a data set of 16 years of fish samplings to assess the relationship between water level and four functional diversity measures, in the upper Paraná River floodplain. Specifically, we approached four aspects of each relationship between water level and functional diversity: nature (positive or negative), sensitivity (response intensity), responsiveness (response delay) and extent (response duration). The nature of the relationship between water level and functional diversity was positive in all cases. Functional richness (FRic) responded right after flood pulses, although with shorter extent. Abundance‐dependent functional measures (evenness—FEve; divergence—FDiv; and Rao's quadratic entropy—Rao's Q) presented delayed responses, reaching peaks more than 1.5 years after flood pulses. Significant effects of floods on fish functional diversity were observed for more than 3 years, although the highest functional diversity was observed with 1.8 years, on average. More importantly, flood pulses had no longer significant effects on functional diversity after 4 years. Regarding conservation strategies in regulated systems, flood events should occur every 2 or 3 years, with adequate timing (October‐November), intensity (up to 450 cm) and duration (at least 50 uninterrupted days). Intervals longer than 3 years or inadequate timing, intensity and duration could dramatically decrease functional diversity and compromise ecosystem services. 相似文献
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随着“互联网+”时代的到来,数据挖掘、数据共享、云计算等信息技术为农机的智能化和信
息化管理提供有效方法和手段。为更好的推动农业经济发展,有必要借助先进的信息技术手段,搭建
一个基于“互联网+”的智慧农机管理信息数据共享平台,使我国农机管理进入大数据时代,推进智慧
农业发展。 相似文献
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与现代农业发展的新要求结合,通过对莘县70 年来农业发展取得的成就、经验的总结,深入
剖析莘县农业当前所面临的挑战,并从发展“绿色生态”农业,促进农业可持续发展、发展“三型特色”
农业,提升农产品竞争力、发展“品牌信息”农业,提高农产品影响力、实施“科技兴农”战略,促进农业
高质量发展、坚持“依法治农”策略,完善相关法规体系建设、实施“人才强农”战略,加强农业高层次人
才培养等方面,就莘县农业发展思路与对策进行了深入思考。 相似文献