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SLM
Sustainable land management
SMU
Soil mapping unit
SOC
Soil organic carbon
SOM
Soil
organic matter
SOLUS
Sustainable options for land use
SOTER
Global Soil and Terrain Database
SRTM
Shuttle Radar Topography Mission
STU
Soil
typological unit
TAC
Technical Advisory Committee for the CGIAR
TC
Terrain
component
TIN
Triangulated irregular network
TM
Thematic
Mapper
TU
Terrain
unit
UN
United
Nations
UNCED
UN Conference on Environment and Development (Earth Summit),
1992
UNDP
UN Development
Programme
UNEP UN
Environment Programme
UNEP/GRID UNEP Global Resource Information Database
UNFPA
UN Population Fund
USBR
United States Bureau of Reclamation
USDA
United States
Department of Agriculture
USLE
Universal soil loss equation
WB
World Bank (International Bank for Reconstruction and
Development)
WFP
World Food Programme
WHYCOS
World Hydrological
Cycle Observation System
WMO
World Meteorological Organization
WRB
World Reference Base for Soil Resources
WRI
World
Resources
Institute
WWF
Worldwide Fund for Nature (former World Wildlife Fund)