Estimates of contribu-tion from rainplash and wind erosion to soil contamination of plant during the experimentalperiod are 68%and 32%for broadbean,47%and 53%for ryegrass respectively.

• 雨洗和风蚀对植物表面土壤质量沉积的贡献估算值（在实验期间）对黑麦草分别是47%25和53%25，对蚕豆分别是68%25和32%25。