Vitaal Landelijk Gebied in kaart : Jaarboek 2009 Cluster Vitaal Landelijk Gebied

‘Vitaal Landelijk Gebied in kaart’. Dat is de titel en het thema van dit jaarboek. Niet alleen figuurlijk – een selectie van projecten die zijn uitgevoerd binnen het cluster – maar het vitaal landelijk gebied is ook letterlijk in kaart gebracht. Veel projecten zijn niet aan een bepaald gebied gebonden en gaan over Nederland als geheel. De kaarten visualiseren de projecten uitgevoerd in 2009 – en voor zover nog te achterhalen – projecten terug in de VLG-tijd tot 2005. Het was niet mogelijk alle projecten te presenteren. Themacoördinatoren hebben een selectie gemaakt. Per project leest u over de onderzoeksvraag, de relevantie van het onderzoek voor het beleid, wat het onderzoek heeft opgeleverd en wat er met de nieuwe kennis is gedaan

Bodemkundige Informatie Systeem (BIS) Nederland

Bodemgegevens staan in de top vijf van gegevens, die het meest gebruikt worden door de overheid. Bodemkundig Informatie System (BIS) Nederland biedt overheden en bedrijven toegang tot bodemgegevens en scenario’s voor duurzaam bodem- en grondwatergebruik. Hiermee kunnen de effecten van maatregelen op de bodem en het grondwater worden doorgerekend. Het systeem bevat up-to-date informatie over de Nederlandse bodem, die op systematische wijze is verzameld en bewerk

Soil remediation : a systems approach

Soil remediation has only a short history, but the problem addressed is a significant one. When solving soil remediation problems we have to deal with a large number of scientific disciplines, however solutions are often presented from the viewpoint of just one discipline. In order to benefit from the combined disciplinary knowledge and experience it is necessary to describe the interrelations between these disciplines. This has been realised by developing an adequate model of the desired process, which enables to consider and evaluate the essential factors as interdependent components.Three main phases in the soil remediation process are distinguished: problem identification, development of problem solving alternatives and selection of the best alternative.In the identification phase several sampling strategies may have to be compared. In this thesis probabilistic decision trees are used for the comparison. In the case studies we found that the value of surveys depends not only on the costs of the survey itself, but equally on the ratio of expected failure or success and the related costs of the actions based on the survey. Once a sampling strategy is chosen and data is collected, the results can be used to estimate the amount of polluted soil material. Probability kriging is a non-linear geostatistical estimation technique suitable for the estimation of the amount of polluted soil material.In the development phase work is aimed at generating problem solving alternatives. This thesis presents expert support models recombining knowledge and experiences obtained during ex and in situ soil remediations. The aim of the models is to optimise knowledge transfer among the various parties involved in contaminated site management. Structured Knowledge Engineering (SKE) has been used as a framework for model development. The model was applied several polluted sites. The structured approach requires scrutinising all relevant data in order to answer the questions related to ex and in situ soil remediations. Moreover, it clarifies the roles of the different disciplines involved in the process.After deciding whether or not a soil cleanup operation is necessary, the question remains which remedial strategy and technique should be applied. The triple-perspective REC framework simultaneously takes into account risk reduction, environmental performance and costs, and aims at increasing the effectiveness and efficiency of cleanup operations

An expert support model for in situ soil remediation

This article presents an expert support model for in situ soil remediation. It combines knowledge and experiences obtained from previous in situ soil remediations. The aim of this model is to optimise knowledge transfer among the various parties involved in contaminated site management. Structured Knowledge Engineering (SKE) has been used as a framework for model development. This approach requires scrutinising all relevant data to answer questions related to an in situ soil remediation operation. Moreover, it clarifies the roles of the different involved parties. The approach was applied to a chlorinated hydrocarbon pollution at a dry cleaner's. Use of the expert support model resulted in the development and selection of a new remediation techniqu

Ethiopian soil laboratory infrastructure : CASCAPE scoping mission

Food security is one of the main issues in Ethiopia. Large amounts of money are spent on food security programs set up by federal- and regional governments and other organisations. Decisionmakers, as well as researchers, share a dependency upon reliable data on soils, water and crops. The authors of this report believe that the data from the Ethiopian soil laboratories are not reliable enough for decision-making purposes. Ethiopian laboratories need to improve their analytical services. The main problems concern the organisational set-up, and not merely a lack of budgets for facilities. Apart from organisational problems, managerial-, human resources-, technical-, instrumental- and supply issues were identified

Multi-objective decision-making for soil remediation problems

After deciding whether or not a soil clean-up operation is necessary, the question remains which remedial strategy and technique should be applied. Traditionally, remediation techniques aim at reaching environmental threshold values within the shortest possible time. There is, however, a growing awareness that other aspects should be included when assessing remedial actions. Striving for optimal soil quality at a polluted site may result in the transfer of contamination to other media and a considerable use of economic and natural resources. The triple-perspective REC framework simultaneously takes into account Risk reduction, Environmental performance and Cost, and aims to increase the effectiveness and efficiency of clean-up operations. Within the REC framework, the risk reduction perspective aims at minimizing the effects of contamination and remediation on potential receptors at the site. The environmental merit perspective, which stems from a life-cycle inventory approach, aims at minimizing the use of scarce commodities and the contamination of other compartments due to remedial activities. Finally, the costs perspective aims at minimizing the total costs in terms of net present value. This paper describes the method and illustrates an application

Landsdekkende, actuele informatie over grondwatertrappen digitaal beschikbaar

De grondwatertrappen op de Bodemkaart van Nederland, schaal 1:50.000, geven niet overal de actuele situatie weer, omdat de grondwaterdiepte sinds de veldopnames door allerlei oorzaken veranderde. Van hoog Nederland is daarom de grondwaterdynamiek (Gd) tussen 1997 en 2005 in kaart gebracht. Deze Gd-kaart geeft meer informatie dan alleen grondwatertrappen. De komende jaren zal ook de grondwaterdynamiek van laag Nederland worden gekarteerd. In afwachting van de afronding hiervan is een actuele, landsdekkende grondwatertrappenkaart afgeleid van twee inventarisaties van grondwaterstanden: de karteringen van de grondwaterdynamiek in hoog Nederland en de update van de grondwatertrappenkaart van laag Nederland tussen 2011 en 2014

Multi-objective decision making for soil remediation problems

After deciding whether or not a soil clean-up operation is necessary, the question remains which remedial strategy and technique should be applied. Traditionally, remediation techniques aim at reaching environmental threshold values within the shortest possible time. There is, however, a growing awareness that other aspects should be included when assessing remedial actions. Striving for optimal soil quality at a polluted site may result in the transfer of contamination to other media and a considerable use of economic and natural resources. The triple-perspective REC framework simultaneously takes into account Risk reduction, Environmental performance and Cost, and aims to increase the effectiveness and efficiency of cleanup operations. Within the REC framework, the risk reduction perspective aims at minimizing the effects of contamination and remediation on potential receptors at the site. The environmental merit perspective, which stems from a life-cycle inventory approach, aims at minimizing the use of scarce commodities and the contamination of other compartments due to remedial activities. Finally, the costs perspective aims at minimizing the total costs in terms of net present value. This paper describes the method and illustrates an application. © 2005 EPP Publications Ltd

Bodem in beweging: BIS Nederland informeert

Bodemkundig InformatieSysteem informeert over actuele toestand èn dynamiek. De bodem die we kennen vanaf het eerste moment dat we een bodemkaart zagen, lijkt onveranderlijk. Maar kijken we wat beter naar de bodem zelf, zoals bodemkundigen dat doen, dan zien we volop bewegin