Table 3

Land cover types found on the five wine grape-growing ranches in Mendocino County, California, considered in this study

Number of Vegetation Plots

Number of Soil Pits

Habitat Type

Elevation (meters)

Slope (degrees)

Solar Radiation (W-hr/m2/yr)


0

19

Vineyard I

173

0.7

2.18*106

0

6

Vineyard II

572

10.7

1.99*106

0

2

Annual Grassland

213

5.0

2.27*106

17

1

Valley Riparian

152

0.4

2.18*106

39

2

Mixed Hardwoods I

534

21.3

1.97*106

26

13

Mixed Hardwoods II

225

10.7

2.16*106

11

1

Mixed Conifer-Hardwood

407

25.8

2.06*106


The classification process consisted of a partitioning around mediod (PAM) analysis, which used 1013 random points and binned them into similar groups based on four variables: land cover; elevation; slope; and solar radiation (see methods).

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

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