THE CHANGES IN STREAM WATER TEMPERATURE AND WATER QUALITY PARAMETERS DURING RAINFALL EVENTS IN FORESTED WATERSHEDS: SCALING OF OBSERVATIONS
| Main Author: | Perpustakaan UGM, i-lib |
|---|---|
| Format: | Article NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2010
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/27961/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=11024 |
Daftar Isi:
- ABSTRACT We studied the changes in stream water temperature (Tw) and water quality (Wq) during rainfall events in forested watersheds. The parameters ofWq (88, DOC, N03--N, DTN, Na+, 8i and r) were observedinfour regionsof Japan from June 2004 to December 2005. The R values between Tw and those Wq parameters and between specific discharge (Qs) and Wq were positive, exceptfor the negativeones (Na+ and Si). Similarto the relationbetweenQs vs. Tw, hysteretic loops in the relations between Qs vs. those Wqparameters were clockwise, exceptfor Na+ and Si as counter-clockwiseloops. This indicatesthat the'surface and subsurface flows contain higher concentrations of SS, DOC, IC, N03--N and DTN. To the contrary,the deeperpathwayscontainhigherconcentrationsof Na+ and Si. These results suggest that the changes in Tw and Wq could be used to interpret theflow paths. KeyWords: stream water temperature, water quality, rainfall event,hysteretic loops