LY/T 2903-2017
Abolished
Industry standards-Forestry
LY/T 2903-2017 Classify and coding on observation site and long-term sample plot of desert ecosystem
LY/T 2903-2017 Classify and coding on observation site and long-term sample plot of desert ecosystem
Basic Information
Standard Code:
LY/T 2903-2017
Standard Type:
Industry standards
Standard Status:
Abolished
is_force_gb:
no
CCS Name:
\nForest resource protection
ICS Name:
Agriculture and forestry
Publish Date:
2017-10-27
Implement Date:
2018-01-01
Pages:
12 pages
Scope
This standard specifies the classification and coding methods for comprehensive observation sites, meteorological observation sites, wind and sand observation sites, water observation sites, and auxiliary observation sites in desert ecosystems, as well as long-term fixed plots for microclimate, soil, hydrology, and biology. It also proposes technical requirements for filling out information documents for observation sites and long-term fixed plots. This standard applies to the construction of observation sites (plots) and the management of information archives at desert ecosystem location observation research stations across the country.
Development Information
Referenced Standards
Related Standards
GB 4862-1984
Replaced
GB/T 8137-1987
Replaced
GB/T 8137-1987 Seed lac—Specification
GB/T 8138-1987
Replaced
GB/T 8138-1987 Shellac
GB/T 8139-1987
Replaced
GB/T 8139-1987 Dewaxed shellac, Decolorized shellac and decolorized dewaxed shellac
GB/T 8140-1987
Replaced
GB/T 8140-1987 Bleached lac
GB/T 8141-1987
Replaced