Comparative Analysis of the Effects of PAM and CMC on Soil Infiltration and Evaporation

JUMAI Halidaimu; NING Songrui; WANG Quanjiu and ZHANG Jihong

doi:10.13870/j.cnki.stbcxb.2020.01.018

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Comparative Analysis of the Effects of PAM and CMC on Soil Infiltration and Evaporation

更新时间：2025-03-12

- Comparative Analysis of the Effects of PAM and CMC on Soil Infiltration and Evaporation
- Vol. 34, Issue 1, Pages: 121-127(2020)
- 作者机构：
  
  1. 西安理工大学西北旱区生态水利工程国家重点实验室,西安,710048
  2. 中科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
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2020.01.018
  CLC： S157.1
- Published：2020
- 稿件说明：
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JUMAI Halidaimu, NING Songrui, WANG Quanjiu and ZHANG Jihong. Comparative Analysis of the Effects of PAM and CMC on Soil Infiltration and Evaporation[J]. 2020, 34(1): 121-127.
DOI：

JUMAI Halidaimu, NING Songrui, WANG Quanjiu and ZHANG Jihong. Comparative Analysis of the Effects of PAM and CMC on Soil Infiltration and Evaporation[J]. 2020, 34(1): 121-127. DOI： 10.13870/j.cnki.stbcxb.2020.01.018.

摘要

施加化学改良剂是改良土壤和提高农田水分有效性的重要途径，深入了解化学改良剂对土壤水分运动过程的影响是合理利用化学方法改良土壤的基础。通过开展室内土柱试验研究表施聚丙烯酰胺（PAM）和羧甲基纤维素钠（CMC）2种化学改良剂，分析不同施量的化学改良剂（PAM和CMC）对土壤水分入渗和蒸发特征的影响。结果表明：随着PAM和CMC施加量的增加，不同化学改良剂均降低了土壤水分入渗过程，抑制了土面蒸发过程。综合考虑不同化学改良剂的保水、抑蒸性能，施加CMC的减渗、抑蒸作用高于施用PAM，且CMC施量为0.08%的效果最佳。同等减渗、抑蒸效果下，CMC的施用量相对PAM的施用量更少。

Abstract

The application of chemical amendments is an important way to improve soil and water availability of farmland. It is the basis for rational use of chemical methods to improve soil by understanding the effects of chemical amendments on soil water movement processes. In this study

the effects of different chemical amendments on soil infiltration and evaporation characteristics were studied by applying different rates of polyacrylamide (PAM) and sodium carboxymethyl cellulose (CMC). The results showed that with the increasing rates of chemical amendments applied

both amendments hindered soil water infiltration and inhibited soil surface evaporation. Considering the performance of water retention and evaporation inhibition for different amendments

the effect of applying CMC was higher than that of PAM

and the CMC application rate of 0.08% was the best. Under the same effect on water retention and evaporation inhibition

the application rate of CMC was less than that of PAM

and thus CMC had a wider application prospect. This study could provide a theoretical reference for rational use of chemical amendments for soil water retention and evaporation inhibition.

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