CHENG Dongjuan,WANG Lishu,GUO Haigang,et al.Effects of Organic Silicone on Soil Water Availability and Evaporation Characteristics[J].Northern Horticulture,2022,(09):88-92.[doi:10.11937/bfyy.20214285]
有机硅对土壤水分有效性和蒸发特性的影响
- Title:
- Effects of Organic Silicone on Soil Water Availability and Evaporation Characteristics
- Keywords:
- silicone; soil water effectiveness; characteristic curve of soil moisture; soil water suction; soil water constant
- 文献标志码:
- A
- 摘要:
- 以有机硅为试材，采用单因素试验设计，研究了不同有机硅施入量分别为干土质量的0‰、0.15‰、0.30‰、0.45‰、0.60‰（CK、A1、A2、A3、A4）条件下，土壤水分特征曲线和蒸发曲线的变化，探求有机硅对土壤水分有效性和蒸发特性的影响,以期为有机硅调理剂改善土壤持水特性、提高土壤水分利用效率提供参考依据。结果表明：相同土壤水吸力下，土壤含水量因有机硅的添加而增大，尤其在低吸力段（pF 0~2.3）和高吸力段（pF 3.0~4.2）范围内影响显著，且随着有机硅施入量的增加基本呈递增趋势；有机硅施入能够使土壤中的可用水量、最大有效水量增加，多余水量减小；施用有机硅的处理蒸发损失水量均大于不施用有机硅处理，且有机硅施用量越多，相同时间蒸发损失水量越多。
- Abstract:
- Silicone was used as experimental material,and single factor experimental design was adopted.Different proportions of silicone were added into dry soil,0‰，0.15‰，0.30‰，0.45‰，0.60‰ (CK，A1，A2，A3，A4) of dry soil weight respectively,to measure the soil water characteristic curves and evaporation curves,the influence of silicone on soil water availability and evaporation characteristics were explored,in order to provide reference for the improvement of soil water holding characteristics and soil water use efficiency by organic silicon conditioner.The results showed that the soil water content increased with the addition of silicone under the same soil water suction;especially in the range of low suction section (pF 0-2.3) and high suction section (pF 3.0-4.2),and it showed an obvious increase with the increase of silicone application amount.The organic silicon increased the available water and the maximum available water in the soil,while the excess water decreased.The evaporation water loss of silicone treatment was greater than that without silicone treatment,and the more silicone content,the greater water loss of evaporation at the same time.
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备注/Memo
第一作者简介：程东娟（1975-），女，博士，教授，现主要从事节水灌溉与农业水土环境等研究工作。E-mail：handanchengdongjuan@126.com.责任作者：宋福如（1950-），男，本科，高级工程师，现主要从事土壤学等研究工作。E-mail:guigukejichu@163.com.基金项目：河北省自然科学基金资助项目（E2019402468）；邯郸市科学技术研究与发展计划资助项目（19112012018）；河北省高层次人才资助项目（B2019003035）。收稿日期：2021-10-22