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21.
Ester van der Voet René Kleijn Lauran van Oers Reinout Heijungs Ruben Huele Paul Mulder 《Environmental science and pollution research international》1995,2(2):89-89
In the tradition of the study of materials flows through society, the Substance Flow Analysis (SFA) method and its software tool SFINX are presented. SFA aims at providing the relevant information for a country’s overall management strategy regarding single substances or coherent groups of substances. Three modelling techniques and their possibilities and limitations are discussed: Bookkeeping, static modelling, and dynamic modelling. The computer program SFINX can be used for varoius purposes: (1) to obtain an overview of stocks and flows of a substance in, out and through a nation’s economy and environment for a specific year, (2) to trace the origins of specific pollution problems, and (3) to estimate the effectiveness of certain abatement measures. Each application has its own requirements with regard to data and modelling. 相似文献
22.
Serge I. P. Stalpers André R. van Amstel Rob B. Dellink Ivo Mulder Saskia E. Werners Carolien Kroeze 《Mitigation and Adaptation Strategies for Global Change》2008,13(4):359-378
This article discusses an approach for identification and evaluation of short-term greenhouse gas (GHG) emission reduction
options in firms. The approach is based on lessons learnt from a project using Participatory Integrated Assessment (PIA) and
builds on the idea that effective public climate policy for firms requires options that have support from stakeholders and
are practically feasible. Scenarios are used to provide a link with short-term policy developments and a model assists to
communicate quantitative effects of options to participating stakeholders. Our approach can be seen as a first step towards
a framework that meets the need for more systematic approaches to PIAs identifying effective public policies for short-term
GHG emission reduction options in firms. In order to identify effective options for non-carbon dioxide GHG emission reductions,
our approach has been applied to Dutch dairy farms, after which it has been refined. The case study suggests that our approach
can provide balance between practical, context specific issues and scientific-theoretical aspects, thereby avoiding common
pitfalls of participatory research projects to focus too much on either theory or practical issues.
相似文献
Serge I. P. StalpersEmail: |
23.
This paper gives an overview of the results of a research project into the possibilities of immobilising polycyclic aromatic hydrocarbons (PAH), that are present in waste materials. The results show that with hydraulic binders the waste materials can be solidified. The PAH do still leach to a relatively high extent. However, this PAH leaching can be decreased by more than a factor 10 by means of the addition of a specific additive. The immobilisation product fulfils technological requirements for the use as a road base construction material, such as compressive strength. 相似文献
24.
Tim Caro Jeffrey Andrews Matthew Clark Monique Borgerhoff Mulder 《Conservation biology》2023,37(1):e14011
We considered a series of conservation-related research projects on the island of Pemba, Tanzania, to reflect on the broad significance of Beier et al.’s recommendations for linking conservation science with practical conservation outcomes. The implementation of just some of their suggestions can advance a successful coproduction of actionable science by small research teams. Key elements include, first, scientists and managers working together in the field to ensure feedback in real time; second, questions jointly identified by managers and researchers to facilitate engaged collaboration; third, conducting research at multiple sites, thereby broadening managers’ abilities to reach multiple stakeholders; and fourth, establishing a multidisciplinary team because most of the concerns of local managers require input from multiple disciplines. 相似文献
25.
Monique Borgerhoff Mulder 《Behavioral ecology and sociobiology》1989,24(3):145-153
Summary Demographic analyses from 3 cohorts of Kenyan Kipsigis women married between 1940 and 1973 demonstrate that early maturing women have higher reproductive success than do late maturing women, due to longer reproductive lifespans and higher fertility. This result is independent of confounding effects of husband's wealth, but not of the wealth of a woman's parents which affects both menarcheal age and subsequent reproductive success. Data on bridewealth payments at 194 marriages occurring after 1959 show that men make higher marriage payments for early maturing women than for late maturing women. Together these results suggest that Kipsigis men vary their marriage payments in accordance with the reproductive value of their brides. The question of why men use age at menarche rather than bride's parents' wealth as a cue to their bride's subsequent reproductive performance is discussed in the light of changing social and economic conditions experienced by Kipsigis since the late 1920s. 相似文献
26.
R. Heydanus J. G. Santema P. A. Stewart P. G. H. Mulder J. W. Wladimiroff MD 《黑龙江环境通报》1993,13(3):155-162
Data from 23 twin pregnancies with one structurally affected fetus were compared with data from 23 twin pregnancies with proven absence of structural fetal anomalies and matched for maternal age, parity, and year of delivery. The preterm delivery rate ( < 37 weeks) was high in both groups but not significantly different (57 vs. 48 per cent). Perinatal mortality was significantly higher in the structurally affected twin pregnancies (65 vs. 9 per cent). In the affected twins, birth weight of the anomalous fetus was significantly lower than that of the normal co-twin. Since there was no difference in the incidence of maternal disease (hypertensive disorders, diabetes), it was concluded that the higher perinatal mortality was determined mainly by the nature of the anomaly and not by the preterm delivery rate. 相似文献
27.
Prediction of complete bioremediation periods for PAH soil pollutants in different physical states by mechanistic models 总被引:7,自引:0,他引:7
Mass-transfer models and biodegradation models were developed for three theoretical physical states of polycyclic aromatic hydrocarbons (PAHs) in soil. These mechanistic models were used to calculate the treatment periods necessary for complete removal of the PAH pollutants from the soil under batch conditions. Results indicate that the bioremediation of PAHs in such systems is mainly mass-transfer limited. The potential for bioremediation as a treatment technique for PAH contaminated soils is therefore mainly determined by the mass-transfer dynamics of PAHs. Under mass-transfer limited conditions simplified mathematical models, based on the assumption of a zero dissolved PAH concentrations, can be used to predict the period of time needed for complete bioremediation. 相似文献
28.
Ester van der Voet Reinout Heijungs Paul Mulder Ruben Huele René Kleijn Lauran van Oers 《Environmental science and pollution research international》1995,2(3):137-144
In the tradition of the study of materials flows through society, the Substance Flow Analysis (SFA) method and its software tool SFINX are presented. SFA aims at providing the relevant information for a country’s overall management strategy regarding single substances or coherent groups of substances. Three modelling techniques and their possibilities and limitations are discussed: Bookkeeping, static modelling, and dynamic modelling. The computer program SFINX can be used for varoius purposes: (1) to obtain an overview of stocks and flows of a substance in, out and through a nation’s economy and environment for a specific year, (2) to trace the origins of specific pollution problems, and (3) to estimate the effectiveness of certain abatement measures. Each application has its own requirements with regard to data and modelling. 相似文献
29.
Ester van der Voet René Kleijn Lauran van Oers Reinout Heijungs Ruben Huele Paul Mulder 《Environmental science and pollution research international》1997,4(2):112-112
Part I: Abstract In the tradition of the study of materials flows through society, the Substance Flow Analysis (SFA) method is presented. SFA
aims at providing the relevant information for a country’s overall management strategy regarding single substances or coherent
groups of substances. This article is dedicated to the presentation of a threestep general framework for SFA-type studies,
and elaborates on its first step the systems definition. Attention is given to the definition of the external and internal
system boundaries, the categorization of the system’s elements, aspects of materials choice, time, and space, and how these
depend on the aim of the conducted study. Moreover, a broader discussion is started on the need for standardization of materials
flow studies in general.
Part II: Abstract In the tradition of the study of materials flows through society, the Substance Flow Analysis (SFA) method and its software
tool SFINX are presented. SFA aims at providing the relevant information for a country’s overall management strategy regarding
single substances or coherent groups of substances. Three modelling techniques and their possibilities and limitations are
discussed: Bookkeeping, static modelling, and dynamic modelling. The computer program SFINX can be used for varoius purposes:
(1) to obtain an overview of stocks and flows of a substance in, out and through a nation’s economy and environment for a
specific year, (2) to trace the origins of specific pollution problems, and (3) to estimate the effectiveness of certain abatement
measures. Each application has its own requirements with regard to data and modelling. 相似文献
30.
Influences of Suspended Particles on the Runoff of Pesticides from an Agricultural Field at Askim, SE-Norway 总被引:1,自引:0,他引:1
Q. Wu G. Riise H. Lundekvam J. Mulder L.E. Haugen 《Environmental geochemistry and health》2004,26(2):295-302
Field and laboratory experiments were conducted to study the loss of particles from agricultural fields, and the role of suspended particles in carrying pesticides in surface runoff and drainage water. Propiconazole, a widely used fungicide was applied to experimental fields located at Askim, SE-Norway. Samples from surface runoff and drainage water were collected and analyzed for sediment mass, pesticides, particulate and dissolved organic carbon through a whole year. The surface soil and the runoff material were characterized by its particle size distribution, organic carbon content in size fractions and its ability to bind propiconazole. The results show that (1) particle runoff mostly occurred during the rainfall event shortly after harrowing in autumn. The highest particle concentration observed in the surface runoff water was 4600 mg l–1, and in the drainage water 1130 mg l–1; (2) the erosion of surface soil is size selective. The runoff sediment contained finer particle/aggregates rich in organic matter compared to its original surface soil; (3) the distribution coefficient (K
d) of propiconazole was significantly higher in the runoff sediment than in the parent soil. According to our calculation, particle-bound propiconazole can represent up to 23% of the total amount of propiconazole in a water sample with a sediment concentration of 7600 mg l–1, which will significantly influence the transport behavior of the pesticide. 相似文献