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| Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/articles/35/1/151
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| Publication Type:
| Refereed |
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| Author(s): | Ziegler, Alan D.;
Negishi, Junjiro;
Sidle, Roy C.;
Preechapanya, Pornchai;
Sutherland, Ross A.;
Giambelluca, Thomas W.;
Jaiaree, Sathaporn |
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| Author Affiliation: | Ziegler, Sutherland, and Giambelluca: Department of Geography, University of Hawaii, Honolulu, Hawaii; Negishi: Geography Department, National University Singapore, Singapore; Sidle: Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan; Preechapanya: Ministry of Natural Resources and Environment, Chiang Mai, Thailand; Jaiaree: Division of Soil and Land Conservation, Department of Land Development, Bangkok, Thailand |
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| Title: | Reduction of stream sediment concentration by a riparian buffer: Filtering of road runoff in disturbed headwater basins of Montane Mainland Southeast Asia |
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| Section: | Surface water quality
Other records with the "Surface water quality" Section
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| Source: | Journal of Environmental Quality. Vol. 35, No. 1, January/February 2006, p. 151-162. |
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| Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
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| # of Pages: | 12 |
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| Keywords: | TIC Keywords: Bank protection; Fimbristylis; Riparian zones; Runoff control; Sediment control
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| Abstract/Contents: | "We determined the extent that a riparian buffer reduces stream suspended sediment concentrations by filtering road runoff during 18 rain events in a 2.5-ha, multi-use watershed in northern Thailand. The dominant buffer species was the perennial sedge Fimbristylis aphylla ex Steud. (Cyperaceae). We monitored stream sediment concentration for situations where road runoff either flowed into the riparian buffer or was diverted directly into the stream (buffer and no buffer scenarios). These data were used to develop the following relationships between instantaneous stream sediment concentration (Ci) and discharge (Qi): Ci = 28.329Qi0.851 (buffer scenario) and Ci = 22.265Qi1.579 (no buffer scenario). Using these functions to calculate total event suspended concentrations, we determined that the buffer reduced suspended sediment concentration by 34 to 87%, for the range of events monitored. Removal of sediment from runoff generated on a 2.4-m-wide, 165-m-long unpaved road section was achieved principally via ponding, which reduced the transport capacity as flow entered the relatively flat, saturated buffer. Sediment deposition occurred primarily within the first 10 m of the buffer. Some sediment was also deposited on the fillslope leading to the buffer. Maximum road sediment concentration during the largest buffer event approached 100 000 mg L-1. Meanwhile, the corresponding maximum stream suspended concentration was <4000 mg L-1. In contrast, maximum stream concentrations when flow bypassed the buffer during smaller events were commonly 400 to 700 mg L-1. Naturally occurring buffers represent an econominal means of mitigating road-related impacts in upland basins in Southeast Asia, particularly if combined with measures limiting sediment and runoff production on contributing road sections." |
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| Language: | English |
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| References: | 71 |
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| See Also: | Other items relating to: Buffer Zones |
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| Note: | Pictures, b/w
Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Ziegler, A. D., J. Negishi, R. C. Sidle, P. Preechapanya, R. A. Sutherland, T. W. Giambelluca, et al. 2006. Reduction of stream sediment concentration by a riparian buffer: Filtering of road runoff in disturbed headwater basins of Montane Mainland Southeast Asia. J. Environ. Qual. 35(1):p. 151-162. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/jeq/articles/35/1/151
Last checked: 11/07/2016
Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/jeq/pdfs/35/1/151
Last checked: 11/08/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 900 .J6 |
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