Effects of Different PAM Application Modes Mixed with Soil Conditioners on Rainfall Infiltration and Soil Erosion

YU Hai-long; YU Jian; LI Ping; ZHANG Jun-sheng; LI Yu-lan; TANG De-qiang

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Effects of Different PAM Application Modes Mixed with Soil Conditioners on Rainfall Infiltration and Soil Erosion

- Effects of Different PAM Application Modes Mixed with Soil Conditioners on Rainfall Infiltration and Soil Erosion
- Bulletin of Soiland Water Conservation Vol. 31, Issue 5, Pages: 152-155(2012)
- 作者机构：
  
  1. 内蒙古农业大学水利与土木工程学院,内蒙古,呼和浩特,010018
  2. 内蒙古水利科学研究院,内蒙古,呼和浩特,010018
  3. 内蒙古农业大学,内蒙古,呼和浩特,010018
  4. 锡林郭勒盟水利勘测设计队,内蒙古,锡林郭勒,026000
  5. 中建六局土木工程有限公司,内蒙古,呼和浩特,010018
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2012
- 稿件说明：
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YU Hai-long, YU Jian, LI Ping, et al. Effects of Different PAM Application Modes Mixed with Soil Conditioners on Rainfall Infiltration and Soil Erosion[J]. Bulletin of Soiland Water Conservation, 2012, 31(5): 152-155.
DOI：

YU Hai-long, YU Jian, LI Ping, et al. Effects of Different PAM Application Modes Mixed with Soil Conditioners on Rainfall Infiltration and Soil Erosion[J]. Bulletin of Soiland Water Conservation, 2012, 31(5): 152-155. DOI：

摘要

土壤中施用聚丙烯酰胺(PAM)可以提高降雨入渗率

减少土壤侵蚀量。 PAM大多施用于土壤表面。为了研究PAM与不同土壤调理剂混合施用对入渗率和侵蚀量的影响

对PAM(22.5kg/hm

)与保水剂(45kg/hm

)、粉煤灰(1 500kg/hm

)、腐殖酸(900kg/hm

)混合的6种施用方法进行了试验。结果表明

施加了PAM的土壤调理剂均能显著提高降雨入渗率和减少土壤侵蚀量。与对照相比

施加了PAM处理的降雨入渗率较对照试验提高了1.8～2.7倍

土壤侵蚀量减少约50%～70%

PAM与粉煤灰和腐殖酸混合施用提高降雨入渗率效果最为显著

PAM和保水剂混合施用减少土壤侵蚀量最多

PAM与粉煤灰和腐殖酸混合施用相比单独施用PAM均没有显著性差异。综合比较结果发现

PAM与粉煤灰混合施用增加降雨入渗率和减少径流的效果最好

PAM与保水剂混合施用抗土壤侵蚀效果最好。

Abstract

Application of polyacrylamide(PAM) in soil can not only improve rainfall infiltration rate

but also reduce soil erosion. Usually

PAM is applied on soil surface. In order to study the effects of the mixtures of PAM with other soil conditioners on rainfall infiltration rate and soil erosion

six application treatments were evalua-ted by mixing PAM(22.5kg/hm2) with superabsorbent polymers(45kg/hm2)

fly ash(1500kg/hm2) and hu-mic acid(900kg/hm2). Results showed that the application of PAM mixed with soil conditioners could sig-nificantly increase rainfall infiltration rate and reduce soil erosion.Rainfall infiltration rate was 1.8 to 2.7 times higher than the control

while soil erosion rate was reduced by about 50% to 70%. The mixture con-taining PAM

fly ash and humic acid had the most significant effect on the increase in infiltration rate. Mixing PAM with superabsorbent polymers led to the greatest reduction of soil erosion.Moreover

there was no significant differ-ence when PAM was applied alone and mixed with fly ash and humic acids.Overall

the application of PAM mixed with fly ash had the best effect on the increase of rainfall infiltration and reduction of runoff. Soil erosion re-sistance was the best when PAM was mixed with superabsorbent polymer.

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