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聚丙烯酰胺(PAM)对扰动红壤侵蚀产沙过程的影响
引用本文:刘纪根,张平仓,陈展鹏.聚丙烯酰胺(PAM)对扰动红壤侵蚀产沙过程的影响[J].水土保持学报,2009,23(6).
作者姓名:刘纪根  张平仓  陈展鹏
作者单位:1. 长江水利委员会长江科学院,武汉,430010;中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西杨凌712100
2. 长江水利委员会长江科学院,武汉,430010
基金项目:中央级公益性科研院所基本科研业务费项目,黄土高原土壤侵蚀与早地农业国家重点实验室基金
摘    要:为了研究聚丙烯酰胺(PAM)对防治扰动红壤水土流失的影响,采用室内人工模拟降雨试验,探讨了不同坡度、雨强与土壤处理下扰动红壤坡面产流与产沙变化过程.试验结果表明,630T型PAM减流效果好于630S型PAM效果,其减流效益在雨强越大的情况下效益越显著;630S型PAM2 g/m~2减沙效益最显著,平均含沙量比对照减少93.22%~99.65%,侵蚀总量减少93.83%~99.96%;但从经济角度来看,630T型PAMI g/m~2最佳,其平均含沙量比对照减少83.59%~99.69%,侵蚀总量减少89.23%~99.78%.

关 键 词:聚丙烯酰胺  扰动红壤  减流  减沙

Effects of Polyacrylamide(PAM)on Processes of Sediment Yield for Disturbed Red Soil
LIU Ji-gen,ZHANG Ping-cang,CHEN Zhan-peng.Effects of Polyacrylamide(PAM)on Processes of Sediment Yield for Disturbed Red Soil[J].Journal of Soil and Water Conservation,2009,23(6).
Authors:LIU Ji-gen  ZHANG Ping-cang  CHEN Zhan-peng
Abstract:In order to study the effects of applied polyacrylamide(PAM)on preventing soil and water loss for disturbed red soil,the simulated rainfall experiment of different slope,rainfall intensities and soil treatments was designed to investigate the characteristics of runoff and sediment.The results show the effect of reducing runoff for 630T is better than that of 630S,the bigger of rainfall and the more remarkable result of reducing runoff. The result of reducing sediment is most remarkable for 2g/m~2 630S,and its average sediment concentration reduces 93.22%~99.65%than that of control,amount sediment reducing 93.83%~99.96%.But when looking from economy,1g/m~2 630T is the most,and its average sediment concentration reduces 83.59%~99.69%than that of control,amount sediment reducing 89.23%~99.78%.
Keywords:polyacrylamide(PAM)  disturbed red soil  reducing runoff  reducing sediment
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