Search room for soil-permanent observation areas at forestry sites
Description
It has long been known that soils change more or less quickly. Some of these changes have natural causes. Others are due to soil pollution caused directly or indirectly by humans. These include, for example, material inputs via precipitation and dust (acids, nutrients, heavy metals, radionuclides, organic pollutants, etc.). But also the farmer or forester has been changing the soils since time immemorial through cultivation and use. The vast majority of these processes take place very slowly and are difficult for the human senses to perceive.
In order to document possible changes, the LBEG is carrying out the soil monitoring programme in Lower Saxony. To this end, a network of a total of 90 so-called Soil Permanent Observation Areas (SPAs) was set up in cooperation with other landing services. Seventy are accounted for by local agricultural (BDF-L) sites and twenty by forest (BDF-F) sites.
The selection of representative soil-permanent observation areas (BDF) was based on geoscientific criteria such as soil and rock conditions, climate and morphology. In addition, the LBEG took into account typical land uses (agriculture, forestry, nature conservation areas) and stress factors (immissions, use-related stress, etc.).
The aim is to detect possible soil changes on the basis of these representatively selected measuring areas, to evaluate and predict cause and effects. If this succeeds, political, administrative and land use actors will have a secure data basis for their decision-making processes at their disposal in good time.
The BDF-F program consists of a combination of feature and process documentation. The feature documentation includes the periodic determination of stocks and conditions such as physical, chemical and biological soil investigations, surveys of biomass and its ingredients, assessments of the forest condition by crown approach and needle/leaf analyses as well as recordings of soil vegetation. The process documentation is done by measuring rivers in and across the boundaries of the ecosystem.
In forest ecosystems, deposition, release through weathering, uptake into biomass and leachate discharge are important rivers for many elements. In addition, the scattering case and physicochemical milieu variables (immission, meteorology) are also measured for the assessment of stress situations for the forest ecosystems (Text: Northwest German Forest Research Institute).
In other Länder there are similar programmes, the content of which is coordinated between the implementing institutions. Within Europe, a corresponding framework directive is being prepared.
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https://nibis.lbeg.de/net3/public/ogc.ashx?NodeId=455&Service=WMS&Request=GetCapabilities& |