Soil color variations along an iron oxide gradient in a mine drainage treatment wetland

Wetlands ◽  
1994 ◽  
Vol 14 (3) ◽  
pp. 243-246 ◽  
Author(s):  
William J. Tarutis ◽  
Richard F. Unz
Keyword(s):  
Iron Oxide ◽  
Mine Drainage ◽  
Soil Color ◽  
Treatment Wetland

Adsorption of Arsenic from Aqueous Solutions by Iron Oxide Coated Sand Fabricated with Acid Mine Drainage

2015 ◽  
Vol 50 (2) ◽  
pp. 267-275 ◽  
Author(s):  
Jung-Seok Yang ◽  
Man Jae Kwon ◽  
Young-Tae Park ◽  
Jaeyoung Choi
Keyword(s):  
Iron Oxide ◽  
Acid Mine Drainage ◽  
Aqueous Solutions ◽  
Mine Drainage ◽  
Acid Mine ◽  
Coated Sand

THE EFFECTS OF ORGANIC MATTER, IRON OXIDES AND MOISTURE ON THE COLOR OF TWO AGRICULTURAL SOILS OF QUEBEC

1979 ◽  
Vol 59 (2) ◽  
pp. 191-202 ◽  
Author(s):  
S. CHOMCHAN ◽  
R. G. LEGER ◽  
G. J. F. MILLETTE
Keyword(s):  
Organic Matter ◽  
Iron Oxide ◽  
Iron Oxides ◽  
Agricultural Soils ◽  
Area Ratio ◽  
Oxide Coatings ◽  
Soil Color ◽  
Amorphous Iron ◽  
Reflectance Curve ◽  
Iron Oxide Coatings

A new spectrophotometric interpretation of the influence of organic matter, iron oxides and moisture on the soil color of the Ste-Sophie sand and the Ste-Rosalie clay is reported. The method is based on calculation of the area ratio of the reflected (area under the reflectance curve) against the absorbed (area over the reflectance curve). The higher the ratio the lighter is the soil. After treatment to remove organic matter and iron oxide coatings, both soils presented colors significantly lighter than those observed in untreated soils. Organic matter and amorphous iron oxide contributed for 78% and 64% of the color in the Ste-Sophie sand and in the Ste-Rosalie clay, respectively. Moisture tends to mask the effects of organic matter and iron oxides on soil color. Air-dried soils when compared to moistened soils were lighter in color.

Sign in / Sign up

Export Citation Format

Share Document