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Article

Characterizing the Interception Capacity of Floor Litter with Rainfall Simulation Experiments

by 1, 2 and 1,3,*
1
Department of Agriculture, Forestry and Bioresources, Seoul National University, Seoul 08826, Korea
2
Division of Forest Disaster Management, National Institute of Forest Science, Seoul 02455, Korea
3
Department of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
*
Author to whom correspondence should be addressed.
Water 2020, 12(11), 3145; https://doi.org/10.3390/w12113145
Received: 11 September 2020 / Revised: 6 November 2020 / Accepted: 8 November 2020 / Published: 10 November 2020
Floor litter can reduce the amount of water reaching the soil layer through rainfall interception. The rainfall interception capacity of floor litter varies with the physical features of the litter and rainfall characteristics. This study aimed to define the maximum and minimum interception storages (Cmx, Cmn) of litter layers using rainfall simulation experiments, and examine the effects of litter type and rainfall characteristics on rainfall retention and drainage processes that occur in the litter layer. Different types of needle-leaf and broadleaf litters were used: Abies holophylla, Pinus strobus, Pinus rigida, Quercus acutissima, Quercus variabilis, and Sorbus alnifolia. Our results indicate a wide variation in interception storage values of needle leaf litter, regardless of the rainfall intensity and duration. The A. holophylla needle-leaf litter showed the highest Cmx and Cmn values owing to its short length and low porosity. Conversely, the lowest interception storage values were determined for the P. strobus needle leaf litter. No significant differences in interception storage were established for the broadleaf litter. Moreover, except for A. holophylla litter, the broadleaf litter retained more water than the needle leaf litter. An increase in the intensity or duration of rainfall events leads to an increase in the water retention storage of litter. However, these factors do not influence the litter’s drainage capacity, which depends primarily on the force of gravity. View Full-Text
Keywords: floor litter; rainfall interception capacity; rainfall simulation experiment; litter drainage floor litter; rainfall interception capacity; rainfall simulation experiment; litter drainage
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MDPI and ACS Style

Li, Q.; Lee, Y.E.; Im, S. Characterizing the Interception Capacity of Floor Litter with Rainfall Simulation Experiments. Water 2020, 12, 3145. https://doi.org/10.3390/w12113145

AMA Style

Li Q, Lee YE, Im S. Characterizing the Interception Capacity of Floor Litter with Rainfall Simulation Experiments. Water. 2020; 12(11):3145. https://doi.org/10.3390/w12113145

Chicago/Turabian Style

Li, Qiwen; Lee, Ye E.; Im, Sangjun. 2020. "Characterizing the Interception Capacity of Floor Litter with Rainfall Simulation Experiments" Water 12, no. 11: 3145. https://doi.org/10.3390/w12113145

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