Throughfall, stemflow and interception loss of artificial tropical forest

2012 IEEE Colloquium on Humanities, Science and Engineering (CHUSER) Pub Date : 2012-12-01 DOI:10.1109/CHUSER.2012.6504289

Azinoor Azida Abu Bakar, Aminuddin bin Baki, Nur Hamimi Bt Hamzah, Zulkifli bin Yusop, Muhammad Khairudin bin Khalil

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引用次数: 1

Abstract

An interception study of man-made forest was carried out in Bukit Lagong Reserved Forest. Out of 18 rainfall event recorded, all 18 events produce throughfall but only 15 events with measured stemflow. Two plots of 20m × 20m each were established to measure the distribution of interception (gross rainfall, Pg, throughfall, Tf and stemflow, Sf) and identify the percentage of forest canopy cover over the plotted area. Hemispherical photography method using fisheye lens was applied to capture canopy cover image over the plots. The forest plots were occupied with mixed dipterocarp trees consist of two canopy levels with 90% to 98% of canopy cover. The range of interception loss for this study is 1% to 73% with average of 30% of total gross rainfall. The relationship between interception loss and gross rainfall show a moderate correlation with r2 values of 0.3002. The canopy cover does impose significant effect to the loss of rainfall interception. From point-correlation, the interception loss (%) is increase proportionally to the canopy cover (%) with r2 values of 0.4559.

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热带人工林的通流、茎流和截流损失

在武吉拉贡自然保护区对人工森林进行了拦截研究。在记录的18个降雨事件中，所有18个事件都产生了通流，但只有15个事件测量了茎流。建立2个各为20m × 20m的样地，测量截留量(总降雨量Pg、穿透降雨量Tf和茎流Sf)的分布，并确定样地的森林冠层覆盖率。采用鱼眼镜头半球面摄影方法对样地进行了冠层覆盖图像的采集。森林样地由两个冠层组成的混合龙脑树占据，冠层盖度为90% ~ 98%。本研究的截流损失范围为1%至73%，平均为总降雨量的30%。截流损失与总降雨量呈中等相关关系，r2值为0.3002。冠层盖度对截留雨量的损失有显著影响。从点相关上看，截留损失(%)与冠层盖度(%)成正比增加，r2值为0.4559。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2012 IEEE Colloquium on Humanities, Science and Engineering (CHUSER)

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