Journal
HYDROLOGICAL SCIENCES JOURNAL
Volume 63, Issue 7, Pages 1078-1090Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/02626667.2018.1473580
Keywords
splash erosion; throughfall kinetic energy; spatial distribution; canopy structure; rubber tree
Categories
Funding
- National Natural Science Foundation of China [31570622, 41271051]
- Natural Science Foundation of Yunnan Province [2014HB042]
- CAS 135 Program [2017XTBG-F01]
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This study evaluated the spatial distribution of the throughfall kinetic energy (TKE) on a small scale in a rubber plantation. The experiments used Tu..bingen splash cups with natural rainfall. The results indicate that the leaf area index did not significantly affect the TKE during the foliated season. There was no significant correlation between the TKE and the distance from the trunk. However, the lateral translocation of the throughfall in the canopy significantly affected the spatial distribution of the TKE, and high TKE points appeared in the middle and at the edge of the canopy. The results also show that the spatial distribution of the volume-specific TKE values was similar in different rainfall and rainfall intensity groups. The variogram of the spatial variability demonstrates that the TKE exhibited a strong spatial autocorrelation. We confirm that the rainfall redistribution is important for the spatial distribution of the TKE in a rubber plantation.
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