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971.
采用环境库兹涅茨曲线模型模拟江苏省1991年以来经济增长和工业污染之间的动态演进关系,应用分解分析法对2001~2004年间部分污染物排放变化的成因进行了定量分析.结果表明,江苏省工业污染排放量和人均GDP之间的关系类型有U型、倒U型、U型+倒U型以及N型4种,目前大部分污染物呈增长态势.将污染物排放变化的成因分为规模效应、结构效应和广义技术效应3类,结果显示,规模效应促进污染物排放量增加,结构效应和广义技术效应的作用方向不确定,但广义技术效应对污染物控制有决定性作用,强力的环境政策和管理措施能够有效地控制污染物排放. 相似文献
972.
Ecological problems are mainly caused by growth processes. The energy input is a key indicator for ecosystems. In this context, the use of the most valuable kind of energy is of special importance. Economic systems may be considered as special ecosystems. The most valuable kind of energy used in economic systems of industrialised countries is electricity. For some industrialised countries the growth pattern of electricity consumption and its relation to the gross domestic product is considered in this contribution. A linear relation between both indicators for about 3 decades after the Second World War and a coupling of these indicators starting at 1973 has been found. The aim of the contribution is to present this relation and to initiate a discussion about its reason and its interpretation. 相似文献
973.
Al-Khashman OA 《Environmental geochemistry and health》2007,29(1):1-10
Street dust samples (120 in total) were collected under stable weather conditions during the hot, dry season (August and September)
of 2004 from six different localities (industrial, heavy traffic, medium traffic, light traffic, low traffic and rural) in
greater Amman, the capital of Jordan. The concentrations of Fe, Cu, Cd, Pb, Zn and Ni in the dusts were determined by atomic
absorption spectrophotometry. The high concentrations of Pb, Fe and Zn in the street dust samples were related to both anthropogenic
(industrial sources combined with traffic sources) and natural sources. Surprisingly, the concentrations of Cd in the dusts
were low. Correlation coefficient analysis and principle component analysis identified three main sources of these elements
and the corresponding distributions. The elements Pb, Zn, Cd, Fe, Cu and Ni were mainly derived from industrial sources, with
Pb and Zn additionally derived from traffic sources. The street dusts were found to have highly elevated levels of Zn, particularly
along the main trunk roads, indicating that the Zn in the street dusts may be derived from traffic sources, especially vehicle
tyres. The concentrations of metals in the different street dust samples were found to vary depending on the density of traffic. 相似文献
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977.
畜禽养殖污染是不容忽视的新的环境问题 总被引:5,自引:0,他引:5
本文论述了畜禽养殖业对环境带来的污染已成为新的环境问题,并提出了改进的措施。 相似文献
978.
南京市经济发展与环境污染关系的实证研究 总被引:22,自引:5,他引:22
根据南京市1991~2003年经济与环境数据,分析经济发展与环境污染的相互关系,建立了南京市经济增长与环境污染水平的计量模型,进而评价了南京市的环境保护政策。研究表明:作为一个重化工业城市,南京市自20世纪90年代以来,在经济高速发展的情况下,其环境恶化程度逐步得到遏制,部分环境指标与人均GDP演替轨迹呈现显著的环境库兹涅茨曲线特征。这主要归功于南京市政府近年来有效的环境政策和巨额的环境投资。 相似文献
979.
Zahra Didarali Timothy Kuiper Christiaan W. Brink Ralph Buij Munir Z. Virani Eric O. Reson Andrea Santangeli 《Ambio》2022,51(7):1632
Illegal wildlife crime is a global phenomenon, accelerating the ongoing biodiversity crisis. In the Old World, and particularly in Africa, illegal use of poisons to eliminate carnivores is the main driver of the continental vulture crisis. Knowledge about the underlying source and drivers of this threat is lacking for most areas, including Kenya, a global vulture and biodiversity hotspot. An extensive questionnaire survey of over 1300 respondents was run, using a specialized questioning technique and quantitative analytical approaches. Results show that, while pastoralists have a positive attitude towards vultures, over 20% of them use poisons to eliminate predators. Poisoning was largely driven by livestock losses to predators, and by negative attitude towards predators. Poisoning was less prevalent among respondents aware of the Kenya Wildlife Act. Overall, we suggest that a combination of top-down, e.g. legislation, and bottom-up (such as corrals or compensation) along with awareness campaigns may help reduce poisoning on the ground.Supplementary InformationThe online version contains supplementary material available at 10.1007/s13280-021-01695-8. 相似文献
980.
Masako Konishi 《Environmental Communication: A Journal of Nature and Culture》2018,12(4):558-573
This article assesses the success of WWF Japan’s “Background Media Strategy” in influencing Japanese mainstream news outlets’ coverage of climate change negotiations. WWF Japan adopted this “Background Media Strategy” after the Bali COP in 2007; instead of lobbying, it aims to build journalists’ expertise. This article examines its success after seven years through three research approaches: the analysis of participant lists; two surveys (conducted in 2009 and 2015); and a content analysis of climate change articles that appeared in four large mainstream newspapers between April and July 2015. Based on these different data, the author concludes that the new media strategy was successful: Japanese journalists increasingly rely on information provided by WWF Japan and less on information provided by the government and industry. This experiment suggests that a new relationship between global NGOs and the media can improve environmental communications—an approach that could help advocacy groups around the world. 相似文献