| 聚丙烯酰胺(PAM)对土壤水分蓄渗能力的影响 |
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| 引用本文： | 刘东,任树梅,杨培岭. 聚丙烯酰胺(PAM)对土壤水分蓄渗能力的影响[J]. 灌溉排水学报, 2006, 25(4): 56-58,63 |
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| 作者姓名： | 刘东 任树梅 杨培岭 |
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| 作者单位： | 中国农业大学,水利与土木工程学院,北京,100083;中国农业大学,水利与土木工程学院,北京,100083;中国农业大学,水利与土木工程学院,北京,100083 |
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| 基金项目： | 京津风沙源治理项目，内蒙古克什克腾旗科技支撑专项基金 |
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| 摘 要： | 聚丙烯酰胺(PAM)作为一种土壤结构改良剂在我国正处于试验应用阶段。为了更好地了解其作用效果,掌握其作用机理,探求其使用方法,通过试验,分别对施用不同浓度比例PAM的试验土壤的积水入渗情况、饱和导水率值、保水情况、土壤容重进行了测定。结果发现,各种处理土样与对照相比,①积水入渗速率和饱和导水率值都有所降低。②各处理土样的蓄水能力增强,保水能力未见提高。③土壤容重有一定程度的降低。④以上各种趋势随PAM施用量的增大而增强。
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| 关 键 词： | PAM 入渗 饱和导水率 保水能力 土壤容重 |
| 文章编号： | 1000-646X（2006）04-0056-03 |
| 收稿时间： | 2005-12-30 |
| 修稿时间： | 2005-12-30 |
Influence of PAM to Soil Hydraulic Conductivity and Water Holding Capacity |
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| LIU Dong,REN Shu-mei,YANG Pei-ling. Influence of PAM to Soil Hydraulic Conductivity and Water Holding Capacity[J]. Journal of Irrigation and Drainage, 2006, 25(4): 56-58,63 |
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| Authors: | LIU Dong REN Shu-mei YANG Pei-ling |
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| Affiliation: | College of Water Conservancy ~ Civil Engineering, China Agricultural University, Beijing 100083, China |
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| Abstract: | As a new type of soil structure-improved additive,Polyacrylamide(PAM) is still at the stage of experimental application in China.To farther exert it's function and master it's working principle,experiments has been done.The measurement of ponded water infiltration,saturated hydraulic conductivity,water holding capacity,soil bulk density of different treatments of PAM show,①the velocity of ponded water infiltration and saturated hydraulic conductivity are both reduced;②water holding capacity is improved but water retention capacity is seem to the control;③soil bulk density is reduced compared with the control;④the result above is more notable with the higher amount of PAM applied in the soil. |
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| Keywords: | PAM infiltration saturated hydraulic conductivity water retention capacity soil bulk density |
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