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SiO2 concentration of groundwater and streamwater in a small forested watershed
| Content Provider | Semantic Scholar |
|---|---|
| Author | Shimada, Yoshiko Ohte, Nobuhito Tokuchi, Naoko Suzuki, Masakazu |
| Copyright Year | 1992 |
| Abstract | The SiO2 concentrations of rain water, through fall, unsaturated soil water, groundwater, spring water and streamwater were measured in a small forested watershed. SiO2 is a soluble chemical substance which is comparatively contained in natural water. The results indicate the following points, 1) SiO2 is not contained in rain water and stemflow.2) SiO2 is dissolved from soil mineral during the process of unsaturated vertical infiltration and temporary saturated lateral infiltration of soil water.3) The SiO2 concentration of groundwater settles into one value which is peculiar to each watershed (approximately 18 mg/l in the case of Kiryu experimental watershed) at saturated zone and dose not change during lateral movement of groundwater.4) The SiO2 concentrations of spring and stream water are approximately same as groundwater without the rain events accompanied with direct runoff which dilute the spring and stream water to cause the lower concentration of SiO2.Furthermore it was estimated that approximately from 14 to 16g/m2 of SiO2 per year is dissolved at surface soil and its boundary with bed rock and run off to stream in Kiryu experimental watershed. |
| Starting Page | 3 |
| Ending Page | 11 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| DOI | 10.3178/jjshwr.5.3 |
| Volume Number | 5 |
| Alternate Webpage(s) | https://www.jstage.jst.go.jp/article/jjshwr1988/5/2/5_2_3/_pdf |
| Alternate Webpage(s) | https://doi.org/10.3178/jjshwr.5.3 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
