当前位置: 首页 > 文章 > PAM与不同土壤调理剂混合施用对降雨入渗和土壤侵蚀的影响 水土保持通报 2012,32 (5) 152-155
Position: Home > Articles > Effects of Different PAM Application Modes Mixed with Soil Conditioners on Rainfall Infiltration and Soil Erosion Bulletin of Soil and Water Conservation 2012,32 (5) 152-155

PAM与不同土壤调理剂混合施用对降雨入渗和土壤侵蚀的影响

作  者:
于海龙;于健;李平;张俊生;李玉兰
单  位:
内蒙古水利科学研究院;内蒙古农业大学水利与土木建筑工程学院;中建六局;内蒙古农业大学水利与土木工程学院
关键词:
入渗;侵蚀;PAM;保水剂;粉煤灰;腐殖酸
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/hm2)与保水剂(45kg/hm2)、粉煤灰(1 500kg/hm2)、腐殖酸(900kg/hm2)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。
译  名:
Effects of Different PAM Application Modes Mixed with Soil Conditioners on Rainfall Infiltration and Soil Erosion
作  者:
YU Hai-long1,YU Jian2,LI Ping3,ZHANG Jun-sheng2,LI Yu-lan4,TANG De-qiang5(1.College of Water Conservancy and Civil Engineering,Inner Mongolia Agricultural University, Hohhot,Inner Mongolia 010018,China;2.Inner Mongolia Academy of Water Conservancy Sciences, Hohhot,Inner Mongolia 010018,China;3.Inner Mongolia Agricultural University,Hohhot,Inner Mongolia 010018,China;4.Xilin Gol League Water Survey and Design Team,Xilin Gol,Inner Mongolia 026000,China; 5.Civil Engineering Co.,Ltd.,Sixth Engineering Bureau of China Construction,Hohhot,Inner Mongolia 010040,China)
关键词:
infiltration;erosion;PAM;superabsorbent polymer;fly ash;humic acid
摘  要:
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 evaluated by mixing PAM(22.5 kg/hm2) with superabsorbent polymers(45 kg/hm2),fly ash(1 500 kg/hm2) and humic acid(900 kg/hm2).Results showed that the application of PAM mixed with soil conditioners could significantly 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 containing 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 difference 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 resistance was the best when PAM was mixed with superabsorbent polymer.

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