Effects of Super Absorbent Polymers in Different Application Methods on Soil and Water Conservation of the Granite Slope of Red Soil

LIU Chuan1; 2; ZHA Xuan1; 2; HUANG Shaoyan1; 2; KANG Peipei1; 2; DAI Jingmei1

doi:10.13870/j.cnki.stbcxb.2017.06.019

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Effects of Super Absorbent Polymers in Different Application Methods on Soil and Water Conservation of the Granite Slope of Red Soil

更新时间：2025-03-12

- Effects of Super Absorbent Polymers in Different Application Methods on Soil and Water Conservation of the Granite Slope of Red Soil
- Vol. 31, Issue 6, Pages: 110-115(2017)
- 作者机构：
  
  1. 福建师范大学地理科学学院,福州,350007
  2. 福建省亚热带资源与环境重点实验室,福州,350007
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2017.06.019
  CLC： S157.1
- Published：2017
- 稿件说明：
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LIU Chuan1, 2, ZHA Xuan1, et al. Effects of Super Absorbent Polymers in Different Application Methods on Soil and Water Conservation of the Granite Slope of Red Soil[J]. 2017, 31(6): 110-115.
DOI：

LIU Chuan1, 2, ZHA Xuan1, et al. Effects of Super Absorbent Polymers in Different Application Methods on Soil and Water Conservation of the Granite Slope of Red Soil[J]. 2017, 31(6): 110-115. DOI： 10.13870/j.cnki.stbcxb.2017.06.019.

摘要

为了获得保水剂对花岗岩红壤坡面水土保持效果最佳的施用方式，通过人工模拟降雨试验和室内分析相结合方法，开展保水剂混施、层施和沟施等施用方式对红壤坡面侵蚀的产流产沙过程影响研究。结果表明：(1)花岗岩红壤坡面施加保水剂后可降低坡面产流、产沙量，延缓产流时间。当雨强为1.0 mm/min时，保水剂与土壤混合施用对降低坡面径流及产沙量的影响更为显著。与对照坡面相比，混合施用坡面累积径流降低34%，累积产沙量减少48%；雨强为1.5 mm/min时层施保水剂对降低坡面径流及产沙量作用更显著。与对照相比，层施保水剂坡面累积径流降低46%，累积产沙量减少67%。(2)红壤坡面中混合施加保水剂能够增加坡面入渗率，减少坡面径流，增加土壤含水量，发挥了良好的蓄水保土效益。(3)相关性分析表明，保水剂不同施用方式下花岗岩红壤坡面累计产流、产沙量呈现显著相关（P＜0.05），坡面累积径流量和累积泥沙量间构成幂函数模型。研究结果为花岗岩红壤坡面应用保水剂控制水土流失和揭示相关机理提供参考。

Abstract

In order to obtain the best application method of super absorbent polymers (SAP) on soil and water conservation of the granite slope of red soil

the effect of SAP (mixed

layered

and furrowed) application on the erosion process of the granite slope of red soil was compared with the method of simulated rainfall experiment and lab analysis. The results indicated that: (1) the application of SAP can reduce the runoff and sediment yield and delayed the flow time on the granite slope of red soil. The mixed application of SAP and soil had a great influence on reducing the runoff and sediment yield on the granite slope of red soil in the rain intensity of 1.0 mm/min. Compared with the control slope

the cumulative runoff respectively decreased 34% and the cumulative sediment yield decreased 48% by the mixed application of SAP and soil. While layered application of SAP and soil had extremely significant effects on the runoff and sediment yield in the rain intensity of 1.5 mm/min. Compared with the control slope

the cumulative runoff respectively decreased 46% and the cumulative sediment yield decreased 67% by the layered application of SAP and soil. (2) The application of SAP had increased slope infiltration rate and soil water content

and reduced the runoff and sediment yield on the granite red soil slope. The mixed application method of SAP and soil had played a good role on soil and water conservation. (3) The effects of different application methods of SAP had significant on the runoff and sediment yield on the granite slope of red soil P＜0.05. The power function model of the cumulative runoff and cumulative sediment on the granite slope of red soil was concluded based on statistical analysis. Those results provided the theoretical basis for the runoff and sediment yield on the granite red soil slope.

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