Classification
LCM - Terrestrial ecology
26
UHN - Landscape ecology
12
LCK - Ecology - general aspects
9
LWE - Agriculture - general aspects
9
LCL - Biotopes, ecosystems
6
GPA - Geobiology - general
5
UHP - Protection of nature and landscape
5
GRB - Climatology
4
GSC - Remote sensing
4
LCH - Ecology - methods
4
LCV - Ecology - models
4
LWH - Agriculture - soil sciences
3
GTAK - Hydrogeology
2
LCD - Ecology - comprensive works
2
LCN - Ecology - soil sciences
2
LWO - Agricultural ecology, sustainable agriculture
2
LWV - Agriculture - plant protection
2
UCA - Environmental problems, man and environment - general aspects
2
UCL - Environmental research
2
UCS - Environmental chemistry
2
UHC - Area planning and environment
2
UHCH - Urban areas
2
UMRC - Effects of air pollution on plants and animals
2
UPN - Water protection, water quality, clean water
2
GBA - General geology, historical geology
1
GBC - Paleoclimatology
1
GCAB - Regional geology - european countries
1
GDAB - Rock mechanics, soil mechanics
1
GMAD - Organic geochemistry
1
GNA - Geology - soil sciences
1
GPAB - Flora, vegetation - geographical aspects
1
GTA - Hydrology - general
1
LAN - Biology - mathematical methods, statistics
1
LEE - Botany - general aspects
1
LER - Plant physiology - ecological aspects
1
LOL - Genetics - general aspects, classic genetics
1
LTU - Genetic engineering
1
MSH - Mathematical methods in life sciences
1
MWHL - Modeling, classification, clustering
1
UAM - Environmental models
1
UAN - Environment - mathematical methods, computer applications
1
UCE - Environmental impact, environmental pollution
1
UEF - Sustainability
1
UMK - Air pollution - general aspects
1
UMN - Air pollution control and measurement
1
UMV - Climatic change
1
UPVC - Groundwater
1
URA - Soil chemistry
1
UUG - Environmental aspects of genetically modified organisms, viruses, genes
1
UVF - Environmental aspects of heavy metals and their compounds
1