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51.
Jeroen van der Heijden 《Journal of Environmental Planning and Management》2019,62(3):446-465
It has been proposed that voluntary urban climate programmes overcome shortfalls in mandatory, top-down, state-led government interventions to address climate change risks. Such programmes seek commitments from households and firms to improve their environmental sustainability, but do not have the force of law. City governments are actively developing and implementing such programmes, seeking improved and accelerated urban climate action. There is little evidence, however, of whether their involvement positively affects voluntary programme performance. This article presents qualitative comparative analysis (QCA) of 26 voluntary programmes from Australia, the Netherlands and the US, seeking to understand whether, and if so how, city governments affect the performance of voluntary urban climate programmes. The results will help to inform city governments about the roles they may play in urban climate governance. 相似文献
52.
Using SFA indicators to support environmental policy 总被引:1,自引:1,他引:0
Ester van der Voet Lauran van Oers Jeroen B. Guinée Helias A. Udo de Haes 《Environmental science and pollution research international》1999,6(1):49-58
In order to improve the link from Substance Flow Analysis (SFA) studies to environmental policy, a translation is made from
the SFA overview of flows and stocks into a limited set of indicators. This set is designed to evaluate a region’s substance
regime with regard to environmental quality and sustainable development, including problem shifting in time and space. 相似文献
53.
Interacting effects of sulphate pollution, sulphide toxicity and eutrophication on vegetation development in fens: A mesocosm experiment 总被引:1,自引:0,他引:1
Jeroen J.M. Geurts Judith M. Sarneel Jan G.M. Roelofs Leon P.M. Lamers 《Environmental pollution (Barking, Essex : 1987)》2009,157(7):2072-2081
Both eutrophication and SO4 pollution can lead to higher availability of nutrients and potentially toxic compounds in wetlands. To unravel the interaction between the level of eutrophication and toxicity at species and community level, effects of SO4 were tested in nutrient-poor and nutrient-rich fen mesocosms. Biomass production of aquatic and semi-aquatic macrophytes and colonization of the water layer increased after fertilization, leading to dominance of highly competitive species. SO4 addition increased alkalinity and sulphide concentrations, leading to decomposition and additional eutrophication. SO4 pollution and concomitant sulphide production considerably reduced biomass production and colonization, but macrophytes were less vulnerable in fertilized conditions. The experiment shows that competition between species, vegetation succession and terrestrialization are not only influenced by nutrient availability, but also by toxicity, which strongly interacts with the level of eutrophication. This implies that previously neutralized toxicity effects in eutrophied fens may appear after nutrient reduction measures have been taken. 相似文献
54.
Flament P Mattielli N Aimoz L Choël M Deboudt K de Jong J Rimetz-Planchon J Weis D 《Chemosphere》2008,73(11):1793-1798
A study on tropospheric aerosols involving Fe particles with an industrial origin is tackled here. Aerosols were collected at the largest exhausts of a major European steel metallurgy plant and around its near urban environment. A combination of bulk and individual particle analysis performed by SEM–EDX provides the chemical composition of Fe-bearing aerosols emitted within the factory process (hematite, magnetite and agglomerates of these oxides with sylvite (KCl), calcite (CaCO3) and graphite carbon). Fe isotopic compositions of those emissions fall within the range (0.08‰ < δ56Fe < +0.80‰) of enriched ores processed by the manufacturer (−0.16‰ < δ56Fe < +1.19‰). No significant evolution of Fe fractionation during steelworks processes is observed. At the industrial source, Fe is mainly present as oxide particles, to some extent in 3–4 μm aggregates. In the close urban area, 5 km away from the steel plant, individual particle analysis of collected aerosols presents, in addition to the industrial particle type, aluminosilicates and related natural particles (gypsum, quartz, calcite and reacted sea salt). The Fe isotopic composition (δ56Fe = 0.14 ± 0.11‰) measured in the close urban environment of the steel metallurgy plant appears coherent with an external mixing of industrial and continental Fe-containing tropospheric aerosols, as evidenced by individual particle chemical analysis. Our isotopic data provide a first estimation of an anthropogenic source term as part of the study of photochemically promoted dissolution processes and related Fe fractionations in tropospheric aerosols. 相似文献
55.
56.
Pisa Lennard Goulson Dave Yang En-Cheng Gibbons David Sánchez-Bayo Francisco Mitchell Edward Aebi Alexandre van der Sluijs Jeroen MacQuarrie Chris J. K. Giorio Chiara Long Elizabeth Yim McField Melanie Bijleveld van Lexmond Maarten Bonmatin Jean-Marc 《Environmental science and pollution research international》2021,28(10):11749-11797
Environmental Science and Pollution Research - New information on the lethal and sublethal effects of neonicotinoids and fipronil on organisms is presented in this review, complementing the... 相似文献
57.
58.
Economic aspects of possible land use strategies and protection measures in coastal zones as a response to global environmental
change are examined. First, some key elements are mentioned that are of critical importance for water and land management
in coastal zones. Next, various socio-economic repercussions are discussed. In this context, research needs will be addressed.
Subsequently, these issues are considered for the case of The Netherlands. It is concluded that integrated modelling and analysis
is just starting and needs to receive more attention in order to study long run economic costs, benefits and changes in coastal
zones. 相似文献
59.
Staelens J De Schrijver A Verheyen K Verhoest NE 《Environmental pollution (Barking, Essex : 1987)》2006,142(2):254-263
Although the spatial variability of throughfall (TF) in forest ecosystems can have important ecological implications, little is known about the driving factors of within-stand TF variability, particularly in deciduous forests. While the spatial variability of TF water amount and H+ deposition under a dominant beech (Fagus sylvatica L.) tree was significantly higher in the leafed period than in the leafless period, the spatial TF deposition patterns of most major ions were similar in both periods. The semiannual TF depositions of all ions other than H+ were significantly positively correlated (r=0.68-0.90, p<0.05) with canopy structure above sample locations throughout the entire year. The amounts of TF water and H+ deposition during the leafed period were negatively correlated with branch cover. We conclude that the spatial heterogeneity of ion deposition under beech was significantly affected by leaves in the growing period and by branches in non-foliated conditions. 相似文献