水溶性固沙剂对沙地土壤蒸发的影响

doi:10.13304/j.nykjdb.2023.0200

摘要/Abstract

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

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

中图分类号:

S157.2

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.

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.

图/表 7

图1 蒸发试验期间的温度和湿度

Fig. 1 Temperature and humidity during the evaporation test

图2 不同固沙剂的日蒸发量

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

图3 不同添加量固沙剂日蒸发量变化特征

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

图4 不同添加量固沙剂累积蒸发量变化特征

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

图5 不同固沙剂处理下土壤含水量注：不同小写字母表示不同处理间在P<0.05水平差异显著。

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.

图6 不同添加量固沙剂处理下土壤含水量注：不同小写字母表示不同添加量固沙剂处理间在P<0.05水平差异显著。

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.

图7 添加不同固沙剂的土壤含水量分布注：不同英文字母表示同一固沙剂不同土层间在P<0.05水平差异显著；不同希腊字母表示同一土层不同固沙剂间在P<0.05水平差异显著。

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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