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extractie
44
extraction
44
nederland
44
netherlands
44
aardgas
28
mijnbouw
28
mining
28
natural gas
28
environment
20
friesland
20
milieu
20
gravel
16
gravel pits
16
grind
16
grindgroeven
16
inert gases
16
inerte gassen
16
landscape
16
landschap
16
methaan
16
methane
16
sand
16
sand pits
16
zand
16
zandafgravingen
16
bodemdaling
12
damage
12
dutch wadden islands
12
monitoring
12
nederlandse waddeneilanden
12
pollution
12
schade
12
subsidence
12
verontreiniging
12
agricultural land
8
betuwe
8
bodemkarteringen
8
drainage
8
engineering
8
environmental impact
8
environmental impact reporting
8
gelderland
8
geomorfologie
8
geomorphology
8
grondwater
8
grondwaterspiegel
8
groundwater
8
kaarten
8
landbouwgrond
8
landscape ecology
8