STEMFLOW, THROUGHFALL AND RAINWATER INTERCEPTION OF EIGHT INDONESIAN TREE SPECIES

canopy interception rainfall partitioning stemflow throughfall tree architecture

Authors

  • Siti Sofiah
    sofie2291@yahoo.com
    Purwodadi Botanic Garden, Research Center for Plant Conservation and Botanic Gardens, Indonesian Institute of Sciences (LIPI), Pasuruan 67163 , Indonesia
  • Soejono Soejono Purwodadi Botanic Garden, Research Center for Plant Conservation and Botanic Gardens, Indonesian Institute of Sciences (LIPI), Pasuruan 67163 , Indonesia
November 19, 2016
February 6, 2019
August 28, 2019

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Tree architecture affects how rainwater is partitioned into canopy interception, throughfall, and stemflow. The canopy shape and bark/leaf surface morphology influence the plants' ability to intercept and redistribute rainwater. Therefore, tree structure plays a key role in soil and water conservation, particularly in reducing erosion and runoff. This research was conducted to predict the most suitable tree species for soil and water conservation and recorded 32 rainfall events during the rainy season from January 2014 to March 2015 in Purwodadi–LIPI, Indonesia. The stemflow, throughfall, individual tree architectural characteristics, and leaf morphology were measured for eight selected local tree species, namely: Sterculia cordata, Aleurites moluccana, Buchanania arborescens, Calophyllum inophyllum, Dysoxylum gaudichaudianum, Peltophorum pterocarpum, Alstonia scholaris, and Pometia pinnata. The species that showed the greatest interception capacity was Aleurites moluccana, with 68.1% of rainfall intercepted. Special leaf characteristics (such as fine hairs), globose stems, and long, grooved bark likely contributed to a greater relative interception of rainwater compared to other species. The throughfall and stemflow of each species were closely correlated with rainfall amount but not with rainfall intensity.

How to Cite

STEMFLOW, THROUGHFALL AND RAINWATER INTERCEPTION OF EIGHT INDONESIAN TREE SPECIES. (2019). BIOTROPIA, 27(1), 1-13. https://doi.org/10.11598/btb.2020.27.1.726
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