Classification
LCK - Ecology - general aspects
UHP - Protection of nature and landscape
23
UHN - Landscape ecology
14
GPA - Geobiology - general
13
UCA - Environmental problems, man and environment - general aspects
10
UCE - Environmental impact, environmental pollution
8
LWE - Agriculture - general aspects
7
LAN - Biology - mathematical methods, statistics
6
LCL - Biotopes, ecosystems
6
LCMC - Plants - ecology
6
LCV - Ecology - models
6
GPAB - Flora, vegetation - geographical aspects
5
UA - Environment - general
5
UEA - Environmental policy and economy - general aspects
5
UMB - Atmospheric chemistry
5
UMV - Climatic change
5
GRB - Climatology
4
HYE - Environmental health
4
LCM - Terrestrial ecology
4
UCL - Environmental research
4
UED - Environmental policy
4
UHC - Area planning and environment
4
LAL - Biology - general aspects
3
LKE - Biochemistry - general aspects
3
PLA - Astrosciences - general
3
UCJ - Environmental protection - general aspects
3
UCS - Environmental chemistry
3
UHK - Traffic and environment - incl. automobile exhaust gas
3
UPN - Water protection, water quality, clean water
3
UVFD - Environmental aspects of specific heavy metals - cadmium, lead, mercury
3
UVR - Environmental aspects of halogens and halogenated hydrocarbons
3
AHPC - Ethics
2
GMAD - Organic geochemistry
2
GMK - Geochemistry of elements, minerals, rocks
2
GNA - Geology - soil sciences
2
GUAB - Geography - anthropological
2
GVA - Oceanography
2
LBL - Evolution - general
2
LBLC - Paleontology - biological aspects
2
LCH - Ecology - methods
2
LCMG - Animals - ecology
2
LER - Plant physiology - ecological aspects
2
LET - Phytopathology
2
LKU - Biochemistry of specific compounds
2
LOL - Genetics - general aspects, classic genetics
2
LWF - Agriculture - methods
2
LWH - Agriculture - soil sciences
2
LWO - Agricultural ecology, sustainable agriculture
2
LWV - Agriculture - plant protection
2
UAD - Environment - comprehensive works
2
more ...