干旱区研究2025，Vol.42Issue(4)：658-667,10.DOI:10.13866/j.azr.2025.04.08
三种植物基固沙剂对风沙土水分入渗和蒸发的影响
Effects of three plant-based sand-fixing agents on water infiltration and evaporation in aeolian sandy soil
摘要
Abstract
Plant-based sand-fixing agents are ecofriendly materials that effectively stabilize sand without pollut-ing the soil,and their decomposition products promote plant growth.This study investigated the physical charac-teristics of consolidated layers formed by plant-based sand-fixing agents and their effects on soil water movement in sandy farmland using water infiltration and evaporation simulation experiments with three plant-based sand-fix-ing agents(Artemisia desertorum,flax,and black locust)and six application rates(0.5 g·m-2,1.0 g·m-2,2.0 g·m-2,3.0 g·m-2,4.0 g·m-2,and 5.0 g·m-2).Wind-sand soil sprayed with the same amount of pure water served as the control(CK).The results showed the following:(1)The soil physical properties were altered.The compressive strength of the consolidated layer was in the order of black locust>flax>Artemisia desertorum>CK.The average compressive strength of the consolidated layer treated with the three agents increased by 109.38%,95.06%,and 58.46%compared with CK,respectively.The compressive strength of the same agent increased with concentra-tion.Soil bulk density increased with higher application rates,with a maximum increase of 3.76%compared with CK.Meanwhile,the total porosity and saturated and minimum water-holding capacity decreased by up to 44.55%,47.65%,and 53.62%,respectively,compared with CK.(2)The water infiltration rate was effectively re-duced.The infiltration times were as follows:flax(29.53 min)≈black locust(29.52 min)>Artemisia desertorum(29.03 min)>CK(26.08 min).As the application rate increased,the infiltration time showed a U-shaped trend for black locust and flax agents,whereas Artemisia desertorum increased gradually.(3)The soil water evaporation rates were significantly reduced.For all three agents,the application rates of 2.0-4.0 g·m-2 demonstrated the most pronounced effects.(4)Application rates of 2.0-4.0 g·m-2 improved water retention and prevented exces-sively slow water infiltration.This study provides theoretical support for the exploration of new sand-fixing agents and their application in the prevention of wind erosion in sandy farmland soils.关键词
植物固沙剂/固结层特性/土壤水分运移/沙质耕地Key words
plant sand fixing agent/characteristics of the consolidated layer/soil water transport/sandy cultivat-ed land引用本文复制引用
刘玥,郭强,袁立敏,党晓宏,蒙仲举,董菁..三种植物基固沙剂对风沙土水分入渗和蒸发的影响[J].干旱区研究,2025,42(4):658-667,10.基金项目
内蒙古自治区科技计划"呼伦贝尔沙地生态修复技术集成与示范"项目(2022YFDZ0055)资助 （2022YFDZ0055）
