Factors controlling Si export from soils: A soil column approach

Transient drainage from a vertical soil column

Transient drainage from a vertical soil column

Soil Column Evaluation of Factors Controlling Biodegradation of DNT in the Vadose Zone

J O H N D . F O R T N E R , † C H U N L O N G Z H A N G , ‡ J I M C . S P A I N , § A N D J O S E P H B . H U G H E S * , † Department of Civil and Environmental Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, School of Natural and Applied Sciences, University of HoustonsClear Lake, Houston, Texas 77058, and Air Force Research Laboratory/MLQR, 139 Barnes Drive, Suite 2, Ty...

Soil column evaluation of factors controlling biodegradation of DNT in the vadose zone.

High concentrations of 2,4-dinitrotoluene (2,4-DNT) and 2,6-dinitrotoluene (2,6-DNT) are present in vadose zone soils at many facilities where explosives manufacturing has taken place. Both DNT isomers can be biodegraded under aerobic conditions, but rates of intrinsic biodegradation observed in vadose zone soils are not appreciable. Studies presented herein demonstrate that nutrient limitation...

Factors controlling degradation of pesticides in soil

Rates of pesticide degradation in soil exhibit a high degree of variability, the sources of which are usually unclear. Combining data from incubations performed using a range of soil properties and environmental conditions has resulted in greater understanding of factors controlling such degradation. The herbicides clomazone, ̄umetsulam, atrazine, and cloransulam-methyl, as well as the former i...