Rainfall-runoff characteristics in a tropical forested catchment, Puchong, Selangor, Malaysia
This study aims to clarify the contributions of pre-event water to storm runoff using environmental tracers (dis‐ solved inorganic ions and stable isotopes) in a tropical forested catchment in Puchong, Selangor, Malaysia. We performed intensive sampling campaigns of stream water and throughfall...
| Main Authors: | , , |
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| Format: | Article |
| Published: |
Japan Society of Hydrology and Water Resources
2023
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| _version_ | 1825939687088324608 |
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| author | Saito, Mariko Tsujimura, Maki Abu Bakar, Siti Nurhidayu |
| author_facet | Saito, Mariko Tsujimura, Maki Abu Bakar, Siti Nurhidayu |
| author_sort | Saito, Mariko |
| collection | UPM |
| description | This study aims to clarify the contributions of pre-event
water to storm runoff using environmental tracers (dis‐
solved inorganic ions and stable isotopes) in a tropical
forested catchment in Puchong, Selangor, Malaysia. We
performed intensive sampling campaigns of stream water
and throughfall for two storm events in July and November
2018. The discharge showed a low peak of 0.13 mm/h in
event 1, with 18 mm of total rainfall, whereas event 2, with
50 mm of total rainfall, showed a quick discharge peak of
1.17 mm/h and a slow recovery of 0.39 mm/h. The nitrate
concentration in the stream water during event 2 was higher
than that in event 1. The temporal variations in nitrate ions
indicate that subsurface water provided a dominant storm‐
flow in event 2. Hydrograph separations using silicate as a
tracer revealed that pre-event water was the dominant com‐
ponent of the storm hydrograph (58–98%). Our results sug‐
gest that pre-event water plays an essential role in storm
runoff of headwaters in humid tropical regions. |
| first_indexed | 2024-09-25T03:41:14Z |
| format | Article |
| id | upm.eprints-108962 |
| institution | Universiti Putra Malaysia |
| last_indexed | 2024-09-25T03:41:14Z |
| publishDate | 2023 |
| publisher | Japan Society of Hydrology and Water Resources |
| record_format | dspace |
| spelling | upm.eprints-1089622024-05-27T01:16:01Z http://psasir.upm.edu.my/id/eprint/108962/ Rainfall-runoff characteristics in a tropical forested catchment, Puchong, Selangor, Malaysia Saito, Mariko Tsujimura, Maki Abu Bakar, Siti Nurhidayu This study aims to clarify the contributions of pre-event water to storm runoff using environmental tracers (dis‐ solved inorganic ions and stable isotopes) in a tropical forested catchment in Puchong, Selangor, Malaysia. We performed intensive sampling campaigns of stream water and throughfall for two storm events in July and November 2018. The discharge showed a low peak of 0.13 mm/h in event 1, with 18 mm of total rainfall, whereas event 2, with 50 mm of total rainfall, showed a quick discharge peak of 1.17 mm/h and a slow recovery of 0.39 mm/h. The nitrate concentration in the stream water during event 2 was higher than that in event 1. The temporal variations in nitrate ions indicate that subsurface water provided a dominant storm‐ flow in event 2. Hydrograph separations using silicate as a tracer revealed that pre-event water was the dominant com‐ ponent of the storm hydrograph (58–98%). Our results sug‐ gest that pre-event water plays an essential role in storm runoff of headwaters in humid tropical regions. Japan Society of Hydrology and Water Resources 2023 Article PeerReviewed Saito, Mariko and Tsujimura, Maki and Abu Bakar, Siti Nurhidayu (2023) Rainfall-runoff characteristics in a tropical forested catchment, Puchong, Selangor, Malaysia. Hydrological Research Letters, 17 (2). pp. 28-35. ISSN 1882-3416 https://www.jstage.jst.go.jp/article/hrl/17/2/17_28/_article 10.3178/hrl.17.28 |
| spellingShingle | Saito, Mariko Tsujimura, Maki Abu Bakar, Siti Nurhidayu Rainfall-runoff characteristics in a tropical forested catchment, Puchong, Selangor, Malaysia |
| title | Rainfall-runoff characteristics in a tropical forested catchment, Puchong, Selangor, Malaysia |
| title_full | Rainfall-runoff characteristics in a tropical forested catchment, Puchong, Selangor, Malaysia |
| title_fullStr | Rainfall-runoff characteristics in a tropical forested catchment, Puchong, Selangor, Malaysia |
| title_full_unstemmed | Rainfall-runoff characteristics in a tropical forested catchment, Puchong, Selangor, Malaysia |
| title_short | Rainfall-runoff characteristics in a tropical forested catchment, Puchong, Selangor, Malaysia |
| title_sort | rainfall runoff characteristics in a tropical forested catchment puchong selangor malaysia |
| work_keys_str_mv | AT saitomariko rainfallrunoffcharacteristicsinatropicalforestedcatchmentpuchongselangormalaysia AT tsujimuramaki rainfallrunoffcharacteristicsinatropicalforestedcatchmentpuchongselangormalaysia AT abubakarsitinurhidayu rainfallrunoffcharacteristicsinatropicalforestedcatchmentpuchongselangormalaysia |