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Ma Bo, Ma Fan, Wu Qiuju, Wu Faqi. Splash detachment effects and its spatial distribution under corn canopies[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2012, 28(20): 135-142.
Citation: Ma Bo, Ma Fan, Wu Qiuju, Wu Faqi. Splash detachment effects and its spatial distribution under corn canopies[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2012, 28(20): 135-142.

Splash detachment effects and its spatial distribution under corn canopies

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  • Received Date: December 28, 2011
  • Revised Date: September 17, 2012
  • Published Date: October 14, 2012
  • In order to systematically determine the splash detachment rate and spatial distribution characteristic at different growth stages of corn under different rainfall intensities, this study systematically investigated the throughfall and splash detachment rate at different growth stages of corn under different rainfall intensities, analyzed the relationship between splash detachment rate and LAI and throughfall intensity, and discussed the spatial distribution of splash detachment rate under corn canopies. The results showed that in the whole growing season, the average splash detachment rate under corn canopy was about 43 to 77% lower than that on bare soil. The splash detachment rate was not significantly related to LAI, but increased significantly with rainfall intensity. The splash detachment rates at different positions under canopy were considerably influence by the thoughfall intensities at the corresponding positions and increased with thoughfall intensity. The spatial distribution of splash detachment rate was well related to the distribution of throughfall, and the areas that had higher throughfall intensity also had extremely high splash detachment rate. The splash detachment characteristic proposed by this study would provide theoretical guidance for erosion control on slope lands.
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