Effects of Water-soluble Sand Fixing Agent on Soil Evaporation in Sandy Land

doi:10.13304/j.nykjdb.2023.0200

Abstract

Abstract:

In order to explore the effect of different water-soluble sand fixing agents on soil water evaporation，4 water-soluble sand fixing agents including artemisinin gum， flaxseed gum， locust bean gum and bio-based sulfonate were selected， and 5 dosages of 10， 20， 30， 40， 50 g·m^-2 were designed for each agent，with no sand fixing agent added as control （CK）. Through the indoor simulation evaporation test， the evaporation intensities of different types and different additions of sand fixing agents were measured， and the differences between them were analyzed. The results showed that the water retention effects of 4 sand fixing agents were locust bean gum， flaxseed gum， artemisia glue， bio-based sulfonate， and locust bean gum were significantly better than bio-based sulfonate. The water retention performance of 4 sand fixing agents at 40 and 50 g·m^-2 were significantly higher than that of CK （P<0.05）. 4 sand fixing agents had strong water retention effects on the deep soil of 5—10 cm. In summary，water-soluble sand fixing agents had a good water retention effect， and locust bean gum had the best performance. Above results could provide a theoretical basis for the application of water-soluble sand fixing agents.

Key words: sand fixing agent, sandy soil, evaporation, water content

摘要：

为探究不同水溶性固沙剂对土壤水分蒸发的影响，选取沙蒿胶、亚麻籽胶、刺槐豆胶、生物基磺酸盐4种水溶性固沙剂，每种材料设计10、20、30、40、50 g·m^-2 5种用量，以未添加固沙剂为对照（CK），通过室内模拟蒸发试验，测定不同种类、不同添加量固沙剂蒸发强度，分析其差异。结果表明，4种固沙剂保水作用依次为刺槐豆胶、亚麻籽胶、沙蒿胶、生物基磺酸盐，并且刺槐豆胶显著优于生物基磺酸盐；4种固沙剂添加量为40和50 g·m^-2时保水作用均显著高于CK（P<0.05）；4种固沙剂对5—10 cm土层土壤均有较强保水效果。综上可知，水溶性固沙剂具有良好的保水作用，其中刺槐豆胶表现最优。研究结果可为水溶性固沙剂的应用提供理论依据。

关键词: 固沙剂, 沙土, 蒸发, 含水量

CLC Number:

S157.2

Haiyan GAO, Limin YUAN, Shengnan ZHANG, Deren YAN. Effects of Water-soluble Sand Fixing Agent on Soil Evaporation in Sandy Land[J]. Journal of Agricultural Science and Technology, 2024, 26(12): 138-144.

高海燕, 袁立敏, 张胜男, 闫德仁. 水溶性固沙剂对沙地土壤蒸发的影响[J]. 中国农业科技导报, 2024, 26(12): 138-144.

Figures/Tables 7

Fig. 1 Temperature and humidity during the evaporation test

Fig. 2 Variation of daily evaporation of different sand fixation agents

Fig. 3 Variation characteristics of daily evaporation of sand fixing agents with different additions

Fig. 4 Variation characteristics of cumulative evaporation of sand fixing agents with different additions

Fig. 5 Soil water content treated with different sand-fixing agentsNote： Different lowercase letters indicate significant differences between different treatments at P<0.05 level.

Fig. 6 Soil water content treated with different amounts of sand-fixing agentsNote： Different lowercase letters indicate significant differences between different contents of sand fixing agents at P<0.05 level.

Fig. 7 Distribution of soil water content of adding different sand fixing agentsNote： Different English letters indicate significant differences among different soil layers of the same sand fixing agent at P<0.05 level； different Greece letters indicate significant differences among different sand fixing agents in same soil layer at P<0.05 level.

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