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Rainfall partitioning in a young hopea odorata plantation

A study on rainfall interception was conducted in a young Hopea odorata plantation at Bukit Tarek Experimental Watershed near Kerling, Selangor. Two interception plots were established, each consisting of 36 trees. Gross rainfall (P g), stemflow (Sf) and throughfall (Tf) were measured to determine t...

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Main Authors: S., Siti Aisah, Yusop, Zulkifli, Noguchi, Shoji, Abdul Rahman, Kassim
Format: Article
Published: Forest Research Institute Malaysia 2012
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/id/eprint/47442/
https://www.frim.gov.my/v1/jtfsonline/jtfs/v24n2/147-161.pdf
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spelling my.utm.474422019-03-05T02:08:57Z http://eprints.utm.my/id/eprint/47442/ Rainfall partitioning in a young hopea odorata plantation S., Siti Aisah Yusop, Zulkifli Noguchi, Shoji Abdul Rahman, Kassim TA Engineering (General). Civil engineering (General) A study on rainfall interception was conducted in a young Hopea odorata plantation at Bukit Tarek Experimental Watershed near Kerling, Selangor. Two interception plots were established, each consisting of 36 trees. Gross rainfall (P g), stemflow (Sf) and throughfall (Tf) were measured to determine the interception loss. The observation period was between October 2006 and December 2007. Based on 65 successfully measured storm events, the average Tfwas 83.2% of P g in plot 1 and 77.4% in plot 2. Average Sfwas 4.1% in plot 1 and 3.1% in plot 2. Interception losses were 12.7 and 19.5% for plots 1 and 2 respectively. The canopy storage S differed greatly between plots: 1.42 mm in plot 1 and 1.49 mm in plot 2, while the trunk storage capacity St was -0.171 mm in plot 1 and 0.127 mm in plot 2. The negative value of S t indicated that Sf occurred immediately after rain water flowed down the tree trunk. The S t amount was either so small or the tree trunk did not hold significant amount of water. Other parameters measured were tree height, stem diameter, crown area and crown depth. The correlation analysis showed that all tree parameters in both plots did not have relationship with Tf. Similar result was also obtained for Sf in plot 1. However, there were correlations between Sf and all tree parameters in plot 2. In multiple regression analysis, there were no key tree characteristics influencing the partitioning of rainfall except for crown depth that significantly influenced Sf in plot 1. The trees of H. odorata were still small that it could not significantly influence the rainfall interception. Hence, rainfall-intercepted processes for young H. odorata trees were only dependent on rainfall characteristics. Forest Research Institute Malaysia 2012 Article PeerReviewed S., Siti Aisah and Yusop, Zulkifli and Noguchi, Shoji and Abdul Rahman, Kassim (2012) Rainfall partitioning in a young hopea odorata plantation. Journal Of Tropical Forest Science, 24 (2). pp. 147-161. ISSN 0128-1283 https://www.frim.gov.my/v1/jtfsonline/jtfs/v24n2/147-161.pdf
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
S., Siti Aisah
Yusop, Zulkifli
Noguchi, Shoji
Abdul Rahman, Kassim
Rainfall partitioning in a young hopea odorata plantation
description A study on rainfall interception was conducted in a young Hopea odorata plantation at Bukit Tarek Experimental Watershed near Kerling, Selangor. Two interception plots were established, each consisting of 36 trees. Gross rainfall (P g), stemflow (Sf) and throughfall (Tf) were measured to determine the interception loss. The observation period was between October 2006 and December 2007. Based on 65 successfully measured storm events, the average Tfwas 83.2% of P g in plot 1 and 77.4% in plot 2. Average Sfwas 4.1% in plot 1 and 3.1% in plot 2. Interception losses were 12.7 and 19.5% for plots 1 and 2 respectively. The canopy storage S differed greatly between plots: 1.42 mm in plot 1 and 1.49 mm in plot 2, while the trunk storage capacity St was -0.171 mm in plot 1 and 0.127 mm in plot 2. The negative value of S t indicated that Sf occurred immediately after rain water flowed down the tree trunk. The S t amount was either so small or the tree trunk did not hold significant amount of water. Other parameters measured were tree height, stem diameter, crown area and crown depth. The correlation analysis showed that all tree parameters in both plots did not have relationship with Tf. Similar result was also obtained for Sf in plot 1. However, there were correlations between Sf and all tree parameters in plot 2. In multiple regression analysis, there were no key tree characteristics influencing the partitioning of rainfall except for crown depth that significantly influenced Sf in plot 1. The trees of H. odorata were still small that it could not significantly influence the rainfall interception. Hence, rainfall-intercepted processes for young H. odorata trees were only dependent on rainfall characteristics.
format Article
author S., Siti Aisah
Yusop, Zulkifli
Noguchi, Shoji
Abdul Rahman, Kassim
author_facet S., Siti Aisah
Yusop, Zulkifli
Noguchi, Shoji
Abdul Rahman, Kassim
author_sort S., Siti Aisah
title Rainfall partitioning in a young hopea odorata plantation
title_short Rainfall partitioning in a young hopea odorata plantation
title_full Rainfall partitioning in a young hopea odorata plantation
title_fullStr Rainfall partitioning in a young hopea odorata plantation
title_full_unstemmed Rainfall partitioning in a young hopea odorata plantation
title_sort rainfall partitioning in a young hopea odorata plantation
publisher Forest Research Institute Malaysia
publishDate 2012
url http://eprints.utm.my/id/eprint/47442/
https://www.frim.gov.my/v1/jtfsonline/jtfs/v24n2/147-161.pdf
_version_ 1643652317583507456
score 13.211869

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