Banana (Musa nana Lour.) plants have a distinctive canopy pattern with their extremely long and wide leaves. However, the effects of such distinct leaf shapes on rainfall redistribution and splash erosion are still poorly understood. Here, we investigated the basic characteristics of throughfall (TF) distribution and throughfall kinetic energy (TKE) and clarified the effect of specific leaf shapes on TKE under the individual banana plant (IBP) and the whole banana plantation (WBP) canopies. We found that the TF under the IBP and WBP canopies was 80.2% and 84.7% of the incident rainfall, respectively. The spatial variability of TF was high, which was attributed to the prominent funnelling and shading effects of the banana canopy. The KE at canopy drip points was significantly higher than that at canopy non-drip points and in open fields under both the IBP and the WBP canopies, implying that the negative effect of banana canopy drip points was far greater than the protective effect of non-drip points on splash erosion. In addition, the leaves at canopy drip points were classified as valley (Va), overlap (Ov), leaf tip (Ti), breakage (Br) and complex shapes (Cs). Significant differences in TKE among these leaf shapes were found, and the significantly lower TKE in Ti and the greater TKE in Cs than those in Va, Ov and Br were observed. As a result, these leaf shapes potentially affected TF splash erosion under the banana canopy. Further ecohydrological studies are required to improve heavy TF splash erosion in banana plantation and to create environmental-friendly plantation.

香蕉（Musa nana（Lour。）植物具有独特的树冠模式，叶片极长而宽。然而，这种独特的叶片形状对降雨再分配和飞溅侵蚀的影响仍然知之甚少。在这里，我们调查了穿透量（TF）和穿透量动能（TKE）的基本特征，并阐明了单个香蕉植物（IBP）和整个香蕉种植园（WBP）冠层下特定叶片形状对TKE的影响。我们发现，IBP和WBP冠层下的TF分别为入射降雨的80.2％和84.7％。TF的空间变异性很高，这归因于香蕉冠层的显着漏斗和阴影效应。在IBP和WBP冠层下，冠层滴落点的KE显着高于冠层非滴落点和空旷地的KE，这表明香蕉冠层滴点的负面影响远大于非冠层的保护作用。飞溅侵蚀上的水滴点。此外，冠层滴水点的叶片分为谷（Va），重叠（Ov），叶尖（Ti），破损（Br）和复杂形状（Cs）。发现这些叶片形状之间的TKE有显着差异，并且观察到Ti的TKE显着降低，而Cs的TKE显着高于Va，Ov和Br。结果，这些叶片形状可能影响香蕉冠下的TF飞溅侵蚀。需要进行进一步的生态水文学研究，以改善香蕉种植园中大量TF飞溅物的侵蚀，并打造环保型种植园。