Experimental Studies on Effects of Reclaimed Water Irrigation on Soil Physicochemical Properties

YANG Lin-lin; YANG Pei-ling; REN Shu-mei; WANG Cheng-zhi

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Experimental Studies on Effects of Reclaimed Water Irrigation on Soil Physicochemical Properties

更新时间：2024-11-07

- Experimental Studies on Effects of Reclaimed Water Irrigation on Soil Physicochemical Properties
- Vol. 20, Issue 2, Pages: 82-85(2006)
- 作者机构：
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  CLC： S714.2S512.12
- Published：2006
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YANG Lin-lin, YANG Pei-ling, REN Shu-mei, et al. Experimental Studies on Effects of Reclaimed Water Irrigation on Soil Physicochemical Properties[J]. 2006, 20(2): 82-85.
DOI：

YANG Lin-lin, YANG Pei-ling, REN Shu-mei, et al. Experimental Studies on Effects of Reclaimed Water Irrigation on Soil Physicochemical Properties[J]. 2006, 20(2): 82-85. DOI：

摘要

通过室内土柱模拟试验的方法，研究了再生水灌溉对土壤理化性质的影响。结果表明：再生水灌溉对土壤扩散率和饱和导水率的影响与连续灌溉再生水的次数有关，短时间灌溉有降低的作用，但随着灌溉次数的增加，土壤扩散率和饱和导水率有增加的趋势；同时，随着灌溉次数的增加，土壤pH值降低，土壤有机质和全盐量增加；土壤溶液中各离子浓度有显著变化。灌溉5次之后，除0～10cm土层全盐量为0．107％外，其他各层均低于0．1％的限度；0～10，10～20，30～40cm土层的ESP均在5％～10％范围之内，20～30cm土层的ESP基本保持在原始的水平。再生水灌溉对土壤次生盐渍化的影响不显著。

Abstract

The indoor soil column simulated experiments was adopted to study the effects of reclaimed water irrigation on soil physicochemical properties.The results showed that soil water diffusivity and saturated hydraulic conductivity was influenced by reclaimed water irrigation frequency

soil water diffusivity and saturated hydraulic conductivity reduced in short period

but with increasing of irrigation frequency

the two parameters would increase.With increasing of irrigation frequency

pH decreased

organic content and total dissolved solid increased

ion concentration in soil solution changed obviously.After irrigation 5 times

the total dissolved solid of 0~10 cm soil layer was 0.107%

and others was below the limit of 0.1%;in the 0~10

10~20

30~40 cm soil layers

ESP was in the range of 5%~10%

in the 20~30 cm soil layer

ESP did not changed.The effect of reclaimed water irrigation on soil secondary salinization and sodicilization was not significant.

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