Water salinity variability mapping for flooded paddy plots at Kuala Kedah, Malaysia
Salinity is an essential parameter in rice cultivation activity. It has a significant impact on paddy growth and also the yield of paddy. However, the level of salinity concentration in paddy plots depends on the surrounding conditions. The distance of the paddy area from the coastline, the temperat...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Penerbit Universiti Kebangsaan Malaysia
2021
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| Online Access: | http://journalarticle.ukm.my/18208/ http://journalarticle.ukm.my/18208/1/43477-172584-1-PB.pdf |
| _version_ | 1848814511330426880 |
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| author | Samera Samsuddin Sah, Khairul Nizam Abdul Maulud, Othman A. Karim, Suraya Sharil, |
| author_facet | Samera Samsuddin Sah, Khairul Nizam Abdul Maulud, Othman A. Karim, Suraya Sharil, |
| author_sort | Samera Samsuddin Sah, |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | Salinity is an essential parameter in rice cultivation activity. It has a significant impact on paddy growth and also the yield of paddy. However, the level of salinity concentration in paddy plots depends on the surrounding conditions. The distance of the paddy area from the coastline, the temperature and intensity of rainfall should be considered in studies involving water quality. Additionally, the tide of events is also included in this study because of the position of the study area near the coastline. Therefore, this study was conducted to assess the level of salinity in two different rice cultivation seasons and describe the level of salinity concentration using a salinity variability map using the Inverse Distance Weighted (IDW) interpolation method. The data collection activities involved water sampling at 44 water inlets for each paddy plot in 30 hectares of the study area by referring to the Day After Sowing (DAS) as the paddy’s growth stage. These water samples were collected on 10 DAS, 40 DAS, and 60 DAS and subsequently tested using a portable conductivity meter namely EC500 Exstick II pH/Conductivity/Temperature Meter. Parallelly, georeference data which is latitude, longitude and elevation were gathered using Garmin GPSMAP 64s. Then, these data were analyzed using the IDW interpolation method in ArcGIS software and comes with salinity variability maps. The produced maps give an overview of the salinity concentration distribution by color scale range. Based on these salinity variability maps, the highest salinity concentration was recorded on 10 DAS and 60 DAS during Season 1 2019 and Season 2 2019, respectively for both tidal events. This result shows that the salinity concentration trend for both seasons is different due to the amount of rainfall received and the position of the paddy plot compared to the mean temperature factor. |
| first_indexed | 2025-11-15T00:35:15Z |
| format | Article |
| id | oai:generic.eprints.org:18208 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T00:35:15Z |
| publishDate | 2021 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org:182082022-03-14T00:53:46Z http://journalarticle.ukm.my/18208/ Water salinity variability mapping for flooded paddy plots at Kuala Kedah, Malaysia Samera Samsuddin Sah, Khairul Nizam Abdul Maulud, Othman A. Karim, Suraya Sharil, Salinity is an essential parameter in rice cultivation activity. It has a significant impact on paddy growth and also the yield of paddy. However, the level of salinity concentration in paddy plots depends on the surrounding conditions. The distance of the paddy area from the coastline, the temperature and intensity of rainfall should be considered in studies involving water quality. Additionally, the tide of events is also included in this study because of the position of the study area near the coastline. Therefore, this study was conducted to assess the level of salinity in two different rice cultivation seasons and describe the level of salinity concentration using a salinity variability map using the Inverse Distance Weighted (IDW) interpolation method. The data collection activities involved water sampling at 44 water inlets for each paddy plot in 30 hectares of the study area by referring to the Day After Sowing (DAS) as the paddy’s growth stage. These water samples were collected on 10 DAS, 40 DAS, and 60 DAS and subsequently tested using a portable conductivity meter namely EC500 Exstick II pH/Conductivity/Temperature Meter. Parallelly, georeference data which is latitude, longitude and elevation were gathered using Garmin GPSMAP 64s. Then, these data were analyzed using the IDW interpolation method in ArcGIS software and comes with salinity variability maps. The produced maps give an overview of the salinity concentration distribution by color scale range. Based on these salinity variability maps, the highest salinity concentration was recorded on 10 DAS and 60 DAS during Season 1 2019 and Season 2 2019, respectively for both tidal events. This result shows that the salinity concentration trend for both seasons is different due to the amount of rainfall received and the position of the paddy plot compared to the mean temperature factor. Penerbit Universiti Kebangsaan Malaysia 2021 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/18208/1/43477-172584-1-PB.pdf Samera Samsuddin Sah, and Khairul Nizam Abdul Maulud, and Othman A. Karim, and Suraya Sharil, (2021) Water salinity variability mapping for flooded paddy plots at Kuala Kedah, Malaysia. Geografia : Malaysian Journal of Society and Space, 17 (4). pp. 240-255. ISSN 2180-2491 https://ejournal.ukm.my/gmjss/issue/view/1443 |
| spellingShingle | Samera Samsuddin Sah, Khairul Nizam Abdul Maulud, Othman A. Karim, Suraya Sharil, Water salinity variability mapping for flooded paddy plots at Kuala Kedah, Malaysia |
| title | Water salinity variability mapping for flooded paddy plots at Kuala Kedah, Malaysia |
| title_full | Water salinity variability mapping for flooded paddy plots at Kuala Kedah, Malaysia |
| title_fullStr | Water salinity variability mapping for flooded paddy plots at Kuala Kedah, Malaysia |
| title_full_unstemmed | Water salinity variability mapping for flooded paddy plots at Kuala Kedah, Malaysia |
| title_short | Water salinity variability mapping for flooded paddy plots at Kuala Kedah, Malaysia |
| title_sort | water salinity variability mapping for flooded paddy plots at kuala kedah, malaysia |
| url | http://journalarticle.ukm.my/18208/ http://journalarticle.ukm.my/18208/ http://journalarticle.ukm.my/18208/1/43477-172584-1-PB.pdf |