T HE MOST CRUCIAL MECHANISMS AND PHENOMENA IN THE SOILS AND GROUND - - - PowerPoint PPT Presentation

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Mar 17, 2023 126 likes •177 views

T HE MOST CRUCIAL MECHANISMS AND PHENOMENA IN THE SOILS AND GROUND - WATERS AND IN THE COMMUNITIES LIVING ON THAT SOIL THAT S OLS 2S EA WILL ADDRESS IN ITS STUDY Dr. Grit Martinez - Ecologic Institute N- REDUCTION VARIES SPATIALLY AT SMALL SCALES

SLIDE 1

THE MOST CRUCIAL MECHANISMS AND

PHENOMENA IN THE SOILS AND GROUND- WATERS AND IN THE COMMUNITIES LIVING ON THAT SOIL THAT SOLS2SEA WILL ADDRESS IN ITS STUDY

Dr. Grit Martinez - Ecologic Institute

SLIDE 2

N-REDUCTION VARIES SPATIALLY AT

SMALL SCALES

Total reduction (groundwater + surface water)

Calculated N-leaching from root zone
Observed N-flux at river gauging stations

Reduction in groundwater – 100 m grid

Calculated by model – is it correct?
NiCA project www.nitrat.dk

SLIDE 3

REGULATION SHOULD EXPLOIT LOCAL

VARIATION IN NITRATE REDUCTION

More than 50% of the nitrate leaching from the root zone is reduced/ disappears in the subsurface when flow lines cross below the redox interface (in Denmark)If we can identify areas where subsurface reduction takes place  we can plan a more cost-effective regulation

Figure from Hinsby et al. (2008)

SLIDE 4

SOCIO-CULTURAL CONSTRUCTION OF EUTROPHICATION

http://www.05lovesgeography.blogspot.com

Source: www.05lovesgeography.blogspot.com

The local/regional culture

in dealing with environmental pollution (believes & values, political and economic context)

Connection to nature/

environment

Acceptance and uptake of

reduction measures and plans/ policy framework

SLIDE 5

www.ecologic.eu

Dr. Grit Martinez

Ecologic Institute, Pfalzburger Str. 43-44, D-10717 Berlin

Tel. +49 30 86880-0, Fax +49 30 86880-162

Grit.Martinez@ecologic.eu www.ecologic.eu