TY  - RPRT
AU  - Liu, Shuguang
AU  - Liu, Jinxun
AU  - Young, Claudia J.
AU  - Werner, Jeremy M.
AU  - Wu, Yiping
AU  - Li, Zhengpeng
AU  - Dahal, Devendra
AU  - Oeding, Jennifer
AU  - Schmidt, Gail L.
AU  - Sohl, Terry L.
AU  - Hawbaker, T.J.
AU  - Sleeter, B.M.
ED  - Zhu, Z.
ED  - Reed, B.C.
ED  - in
PY  - 2012//
TI  - Baseline carbon storage, carbon sequestration, and greenhouse-gas fluxes in terrestrial ecosystems of the western United States
T2  - eds.
BT  - U.S. Geological Survey Professional Paper
IS  - 1797
KW  - agricultural land
KW  - biomass
KW  - California
KW  - carbon
KW  - carbon flux
KW  - carbon sequestration
KW  - carbon storage
KW  - coast
KW  - desert
KW  - ecoregion
KW  - ecosystem
KW  - flux
KW  - forest
KW  - greenhouse gas
KW  - greenhouse gas fluxes
KW  - land
KW  - organic carbon
KW  - Professional Papers
KW  - Reports
KW  - sequestration
KW  - sink
KW  - SOC
KW  - soil
KW  - soil organic carbon
KW  - storage
KW  - terrestrial ecosystem
KW  - U.S.Geological Survey Series
KW  - United States
KW  - vegetation
KW  - western United States
N2  - Highlights: From 2001 to 2005 in the Western United States, the average annual total carbon stored in vegetation and soils (up to 20 cm in depth) was estimated to be 13,920 TgC, ranging from 12,418 to 15,461 TgC. The Western Cordillera ecoregion stored the most carbon (59 percent of the total), followed by the Cold Deserts (19 percent), Marine West Coast Forest (11 percent), Mediterranean California (6 percent), and Warm Deserts (5 percent) ecoregions. Forests, grasslands/shrublands, and agricultural lands stored 69 percent, 25 percent, and 4.3 percent of the total carbon in ecosystems of the Western United States, respectively. Live biomass, soil organic carbon (SOC) in the top 20 cm of the soil layer, and dead biomass (forest litter and dead woody debris) accounted for 38 percent, 39 percent, and 23 percent, respectively, of the total carbon stored in the Western United States. The average annual net carbon flux in the terrestrial ecosystems of the Western United States was estimated to be -86.5 TgC/yr, ranging from -162.9 to -13.6 TgC/yr from 2001 to 2005. (Negative values denote a carbon sink.) Forests were the largest carbon sink (62 percent of the average), followed by grasslands/shrublands (30 percent), and agricultural lands (7 percent). From 2001 to 2005 in the Western United States, the average annual total carbon stored in vegetation and soils (up to 20 cm in depth) was estimated to be 13,920 TgC, ranging from 12,418 to 15,461 TgC. The Western Cordillera ecoregion stored the most carbon (59 percent of the total), followed by the Cold Deserts (19 percent), Marine West Coast Forest (11 percent), Mediterranean California (6 percent), and Warm Deserts (5 percent) ecoregions. Forests, grasslands/shrublands, and agricultural lands stored 69 percent, 25 percent, and 4.3 percent of the total carbon in ecosystems of the Western United States, respectively. Live biomass, soil organic carbon (SOC) in the top 20 cm of the soil layer, and dead biomass (forest litter and dead woody debris) accounted for 38 percent, 39 percent, and 23 percent, respectively, of the total carbon stored in the Western United States. The average annual net carbon flux in the terrestrial ecosystems of the Western United States was estimated to be -86.5 TgC/yr, ranging from -162.9 to -13.6 TgC/yr from 2001 to 2005. (Negative values denote a carbon sink.) Forests were the largest carbon sink (62 percent of the average), followed by grasslands/shrublands (30 percent), and agricultural lands (7 percent).
SN  - http://pubs.er.usgs.gov/publication/pp1797
UR  - http://pubs.er.usgs.gov/publication/pp1797
N1  - exported from refbase (http://eros.usgs.gov/refbase/show.php?record=25679), last updated on Thu, 04 Apr 2013 14:05:25 -0500
ID  - Liu_etal2012
ER  -