CAJ | 학술논문

室内人工降雨条件下,对麦糠基质草坪的产流、产沙规律进行了试验研究.结果表明：麦糠基质草坪盖度对坡面出流时间影响显著,随着麦糠基质草坪盖度的增加,坡面径流的出流时间延迟,在降雨强度为1.0 mm/min,坡度5°条件下,草坪盖度由裸地增大至80%时,出流时间由4.42 min变为12.88 min；坡面产流量和产沙量随着麦糠草坪盖度的增大而减少,在坡度30°,降雨强度为0.5 mm/min、1.0 mm/min、1.5 mm/min 条件下,30%、55%、80%盖度的草坪的产流量与裸地相比,分别减少了30%、40%、70%以上,与裸地相比,产沙量减少均达到90%以上.研究表明,麦糠基质草坪可有效延迟产流时间,减流、减沙作用明显,具有良好的水土保持效果.
실내인공강우조건하,대맥강기질초평적산류、산사규률진행료시험연구.결과표명：맥강기질초평개도대파면출류시간영향현저,수착맥강기질초평개도적증가,파면경류적출류시간연지,재강우강도위1.0 mm/min,파도5°조건하,초평개도유라지증대지80%시,출류시간유4.42 min변위12.88 min；파면산류량화산사량수착맥강초평개도적증대이감소,재파도30°,강우강도위0.5 mm/min、1.0 mm/min、1.5 mm/min 조건하,30%、55%、80%개도적초평적산류량여라지상비,분별감소료30%、40%、70%이상,여라지상비,산사량감소균체도90%이상.연구표명,맥강기질초평가유효연지산류시간,감류、감사작용명현,구유량호적수토보지효과.
By studied on the runoff and sediment yield rules of wheat bran matrix under the condition of indoor artificial rainfall,we found that the coverage of wheat bran matrix lawn had significant effects on the time of slope out flow.With the increasing of wheat bran matrix lawn coverage,the time of slope out flow was delayed,by the rainfall intensity was 1 .0 mm/min,the slope was 5°,the lawn coverage from bare land increased to 80%,the discharge time changed from 4.42 min to 12.88 min.We also found that with the in-creasing of the wheat bran matrix lawn coverage,the slope surface flow and sediment yield reduced,by the slope was 30°,the rainfall intensity was 0.5 mm/min,1.0 mm/min and 1.5 mm/min,the slope surface flow and sediment yield of the lawn coverage of 30%,55% and 80% decreased more than 30%,40% and 70%compared to the bare land.The research suggested that wheat bran matrix lawn could effectively delay the runoff time,reduce flow and sediment,it had good effects on the soil and water conservation.