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Descriptor English:   Percolation 
Descriptor Spanish:   Percolación 
Descriptor Portuguese:   Percolação 
Synonyms English:   Leaching
Lixiviation  
Tree Number:   SP4.016.177.063
SP4.031.100.200.297.793.479
Definition English:   1. Flow of liquids through a porous media. 2. Leaching: Physical-chemical process of washing rocks and soils by rainwater and irrigation, which causes the removal of nutrients such as potassium, calcium and nitrogen, making the soil poorer. Leaching is particularly important (and problematic) in soils lacking vegetation cover and / or with little mineral retention capacity. (Free translation from the original: Brasil. Ministério do Meio Ambiente, 2005) 
See Related English:   Groundwater
Groundwater Pollution
Infiltration-Percolation Ditches
Land Application
Leaching Fields
Percolating Liquid
Porosity
Refuse Disposal
Seepage
Septic Tanks
Water Cycle
 
Allowable Qualifiers English:  
AE adverse effects AN analysis
CL classification EC economics
ES ethics EH ethnology
HI history LJ legislation & jurisprudence
MT methods PL policies
PC prevention & control SN statistics & numerical data
Record Number:   25423 
Unique Identifier:   DDCS025423 

Occurrence in VHL:
 

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