Table 1 Catchment characteristics and headwater stream geochemistry.

From: Regional diversity of complex dissolved organic matter across forested hemiboreal headwater streams

 

Range

Median

Catchment area (km2)

0.95–7.25

2.34

% Forested area

48–99

83

% Clear-cut area

1–34

14

% Wetland area

0–44

0

TOC (mg/L)

6.5–63.3

27.9

Total Ca (meq/L)

0.09–3.10

0.25

Total Fe (mg/L)

0.04–3.8

0.8

pH

4.01–7.40

4.97

ΣBC (meq/L)

0.29–3.84

0.67

TOC:ΣBC+ (mmol:meq/L)

0.3–12.7

3.8

  1. ΣBC = sum of base cations (Ca2+, Mg2+, K+, Na+).
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