Table 1

Carbon by reservoir for each of five ranches assessed by the two land cover types

Ranch

Vineyards

Wildlands

Soil

Mg C/ha

AG-Wood

Mg C/ha

Total

Mg C/ha

Soil

Mg C/ha

AG-Wood

Mg C/ha

Total

Mg C/ha

Chalfont/Ledford

118.7

3.6

122.3

132.7

14.0

146.6

Butler

76.0

2.3

78.3

87.6

47.6

135.2

McNab

92.3

4.5

96.8

106.8

19.2

125.9

Sundial

80.0

4.1

84.1

91.8

22.8

114.7

Hooper

68.0

0.7

68.7

83.8

34.3

118.1

Average

84.1

3.0

87.1

89.3

36.8

126.1

Std Dev

6.6

0.48

7.0

14.5

8.6

22.9

Estimates were derived by fitting multivariate linear regressions to C values for sample plots (aboveground) and measured soil C (from soil pits) using environmental variables such as elevation, slope, solar radiation, soil taxonomy, normalized differential vegetation index (NDVI) and habitat type in a GIS platform (see methods). Soil C is to 1 m depth; AG = aboveground; aboveground C on wildlands excludes grasslands.

Williams et al. Carbon Balance and Management 2011 6:11   doi:10.1186/1750-0680-6-11