Land COVER

Basic land cover classes relative to land surface.
CodenameDescriptionsurfaceherbaceouswoody
A
Annualherbaceous vegetation.>25% soil>25%<10%
E
Bare soilbare soil all year because of compaction, disturbance, dryness or other long-term factors.>75% soil<<25%<<10%
M
Mixedmixed herbaceous, woody & tree cover.>25% soilvaries<60%
P
Perennialcover by trees, shrubs or other woody perennials.>25% soilvaries>60%
S
Sealedartificial structures & surfaces.>75% artificial, compacted, or imported<<25%variable
V
Variabletoo variable across years to classify (seasonal riverbeds, etc.).variesvaries<<10%
W
Waterwater surface all year.>90% water<<10%<<10%
X
Barrenminerals, permanent snow & ice.<10% soil<<10%<<10%

Citation for AEM: Ellis E. C., H. Wang, H. Xiao, K. Peng, X. P. Liu, S. C. Li, H. Ouyang, X. Cheng, and L. Z. Yang. 2006. Measuring long-term ecological changes in densely populated landscapes using current and historical high resolution imagery. Remote Sensing of Environment 100(4):457-473.