poster - International Conference of Agricultural Engineering

FIGURE 1: The migration pathways of soil contamination
On the other hands, South Korea has various laws and regulations related to heavy metals
contaminations. They are Soil Environmental Conservation Act(for soil), the Framework Act
on Environmental Policy(for river water and lake water) and Act on Underground water(for
underground water). There are applicable laws and regulations depending on the target of
each pollution, however, there are some problems which a lack of consideration for crops.
Currently, the surface soil and groundwater are the object where is measured contaminations.
But since crops are grown in the unsaturated zone as shown in Fig. 2 where water and air
are mixed together with soil particles, it is important to figure out the contamination
characteristics of pore water which is actually absorbed by crops. Recently, many
researchers have concerned this problem.(Huynh et al. 2008, Ye et al. 2011, Zhu et al. 2011,
Khim et al. 2001)
FIGURE 2: Characteristics of the soil systems considering the crops
Therefore, in this study, degree of contamination of pore water is measured and is compared
with contamination of soil particles and dilution water (wetted soil : water = 1 : 3).