CAJ | 학술논문

通过田间模拟降雨试验,分析了坡度对坡面物质迁移特性的影响.结果显示,坡度对坡面物质迁移的影响十分显著;降雨强度一定时,坡度达到15°左右时,径流量达到最大;坡度对径流养分流失量的影响是通过径流量起主导作用,径流量大相应径流携带养分流失总量增加.利用幂函数对径流溶质浓度变化过程进行了拟合,结果显示幂函数可以很好反映田间坡面溶质随地表径流变化过程,说明在侵蚀环境下径流溶质浓度变化过程符合幂函数.
통과전간모의강우시험,분석료파도대파면물질천이특성적영향.결과현시,파도대파면물질천이적영향십분현저;강우강도일정시,파도체도15°좌우시,경류량체도최대;파도대경류양분류실량적영향시통과경류량기주도작용,경류량대상응경류휴대양분류실총량증가.이용멱함수대경류용질농도변화과정진행료의합,결과현시멱함수가이흔호반영전간파면용질수지표경류변화과정,설명재침식배경하경류용질농도변화과정부합멱함수.
Serious soil erosion reduce the amount of nutrient in soil loss es, and the slope degree is one of the main factors of effect soil solute transp orting into runoff. In the paper the effects of slope degree on the soil solute transport into runoff was further analyzed through the experimental data in fiel d. The results indicate that runoff amount and velocity may inflect the effect o f slope on the runoff formation. The runoff amount reaches to the maximum value when the slope degree is 15 for the fixed rainfall intensity. The effect of sole degree on the soil solute transport into runoff may be infected by the runoff a mount, and the amount of solute in runoff increases as the runoff amount increas es. The power function was used to fit the experimental data of the solute conce ntration in runoff. The results indicate that the power function may be used to fit the experimental data of the solute concentration in runoff, and the results may provide some guidance for analysis of the features of the soil solute trans port with runoff.