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1.
The effect of mountain relief and industrial air pollution on biometric parameters of pine stands was studied. The empirical–statistical models of the dependence of biometric characteristics on the parameters of forest sites were developed using raster modeling and multivariate analysis. The possibility of predicting changes in the biometric parameters at any site on the basis of these models is shown. 相似文献
2.
Christian Fuchs 《Environment, Development and Sustainability》2008,10(3):291-309
This paper discusses the relationship of new information and communication technologies (ICTs) and sustainable development.
It deconstructs popular myths about a sustainable information society. One myth is that telework has reduced the need to travel
and hence environmental pollution. The reality is that teleworkers make up only a small share of the total workforce, telework
can generate new social relationships and hence the need for more travelling, work-related travel produces only a small amount
of the total carbon dioxide emissions, and that the total distance travelled per employee is constantly rising. Another myth
is that information economy is weightless and dematerialized which reduces environmental impacts. The energy and resource
intensities of the ICT sector are indeed lower than the one of the total economy. The ICT sector also emits less CO2 than the total economy. But the ICT sector constitutes only a small portion of the total value added and fossil fuel combustion
is still the dominant activity of modern industrial economies. Some stakeholders argue that virtual products allow resource,
energy, and transport savings. But burning digital music on compact discs and DVDs, printing digital articles and books, etc.
results in rebound effects that cause new material and energy impacts, computers have a low life span of 2–3 years, reusable
and upgradeable computers and computer equipment are hardly used and might not be as profitable as non-reusable ones, computers
are consuming much energy. Alternatives such as energy consumption labels on ICTs and green ICTs that consume less energy
contradict dominant economic interests. A sustainable information society is a society that makes use of ICTs and knowledge
for fostering a good life for all human beings of current and future generations by strengthening biological diversity, technological
usability, economic wealth for all, political participation of all, and cultural wisdom. Achieving a sustainable information
society costs, it demands a conscious reduction of profits by not investing in the future of capital, but the future of humans,
society, and nature. 相似文献
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5.
杨文武 《环境监测管理与技术》2020,32(3):68-71
于2018年4—9月对泰州市环境空气中挥发性有机物(VOCs)组分开展现场观测,结合观测数据分析该市大气中VOCs的时空分布特征。结果表明:观测期间泰州市环境空气中VOCs平均摩尔比为45.1 nmol/mol,其中含氧挥发性有机物占比为57.8%;受周边排放源和地理位置影响,下风向点位的VOCs测定值高于其他点位;VOCs月均最高值出现在6月,与臭氧月均最高值出现时间一致,7—9月气团出现老化,导致臭氧生成能力减弱;观测期间VOCs中甲苯/苯(T/B)比值范围为0.201 9~5.130 3,且大部分T/B比值2,说明溶剂、油气和液化石油气挥发等排放源对泰州市环境空气中VOCs的影响较为显著。 相似文献
6.
本文阐述了高等院校教育技术的发展现状,分析了高等院校教育技术发展的特点,对高等院校教育技术的发展进行理性思考。认为高等院校应该在重视教育技术实践性和支持性研究的基础上,立足现实,更全面审视机构整合、教育信息化、信息资源库建设和教师培训这些热点问题。 相似文献
7.
REMIS is one of key research projects sponsored by the central government. It is recommended to regional EPAs as a main tool of the environmental management. REMIS simulates the functions of the regional EPAs and aimed to improve their management level. The national environmental management information system will base on REMIS.Functional analysis is the kernel of the REMIS system analysis. Data and data flow analysis are used to support the functional analysis.Investigations on the functions of the local EPAs of eight provinces and 12 cities have been taken. The functions were carefully sorted. Modular design method was used in system analysis and system design.The system analysis included functional analysis, data analysis and data flow analysis. The system design is based on the system analysis. HIPO diagram of each modular, data base structure, menu design, selection of hardware and software environment were the main items of the system design. 相似文献
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元数据技术是目前环境信息管理的发展趋势,对基于元数据的南宁市环境信息共享模式进行了探索与研究,提出了元数据系统功能及内容框架的解决方案。 相似文献
10.
随着科学技术的进步,各类电子产品已经成为人们生活中不可缺少的组成部分,而其发展和普及的背后,我们将面临越来越多淘汰的废旧电子产品对环境带来的压力。与此同时,各类资源的短缺也需要从这些富含众多金属元素的废旧电子材料中找出解决办法。从废旧电子材料回收的紧迫性和必要性出发,分别介绍了目前国内外回收技术的现状及发展方向,并介绍了模型在回收技术发展和实际应用中可以起到的辅助作用。 相似文献