Effects and Mechanism of PAM on Soil Physical Characteristics

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Effects and Mechanism of PAM on Soil Physical Characteristics

更新时间：2024-11-07

- Effects and Mechanism of PAM on Soil Physical Characteristics
- Issue 2, Pages: 37-40(2005)
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- Published：2005
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Effects and Mechanism of PAM on Soil Physical Characteristics[J]. 2005, (2): 37-40.
DOI：

Effects and Mechanism of PAM on Soil Physical Characteristics[J]. 2005, (2): 37-40. DOI：

摘要

通过试验模拟

研究了关中土娄土中施加聚丙烯酰胺(PAM)后对土壤基本物理性状的影响。结果表明

经PAM处理后

土壤水稳性团聚体含量均高于对照

在同一施用方式下

有随PAM浓度的加大其含量呈上升趋势。同时

PAM可有效降低土壤容重

增加土壤饱和含水量和田间持水量。研究结果还表明

PAM施用量过大时会降低土壤的渗透性。在试验研究的基础上对PAM的改土、保水机理进行了分析

Abstract

Based on experiment

we studied the effect of PAM on the soil physical characteristics. The result showed that PAM could increase the quantity of soil large aggregation. Under the same application

the quantity of soil large aggregation increased with the increase of concentration of PAM. It can also decrease soil bulk density and increase soil saturation and field capacity and has some affection on soil infiltration. In addition

we analyzed the affection mechanism of PAM on soil.

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Effects and Mechanism of PAM on Soil Physical Characteristics

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