坡面长度的影响:关于坡面长度对坡面迳流及坡面冲刷发展的影响,前面当论及坡面迳流时及当研究流水面土壤冲刷的试验和观测材料时,已早经屡次指出。正如前面早已指出的一样,这种影响的本质基本上就在于此:当坡面长度相当的大,而其他条件相同时,由于降雨或融雪所形成的迳流层,离分水岭愈远,由于水的积聚,其厚度愈大,因而流速亦愈大。 Effect of Slope Length: As for the effect of slope length on slope flow and slope erosion development, it has been a long time since the past when it was discussed that the test and observation materials on surface runoff, Pointed out. As already pointed out earlier, the essence of this effect rests essentially with this: when the length of the slope is quite large and the other conditions are the same, the foul stratum formed by rainfall or snowmelt farther away from the watershed, Of the accumulation, the greater its thickness, so the greater the flow rate.