JIA Hongru,YUE Eryin,XIE Aiping,et al.Effects of Different Surface Remediation Measures on the Physical and Chemical Properties of Saline-alkali Soil[J].Northern Horticulture,2026,(19):113-121.[doi:10.11937/bfyy.20261158]
不同地表修复措施对盐碱地土壤理化性质的影响
- Title:
- Effects of Different Surface Remediation Measures on the Physical and Chemical Properties of Saline-alkali Soil
- 文章编号:
- 1001-0009(2026)19-0113-09
- Keywords:
- saline-alkali soil; sand covering; film covering; straw mulching; physicochemical property
- 分类号:
- S156.4
- 文献标志码:
- A
- 摘要:
- 以甘肃省金塔县荒漠盐碱地为试验对象，采用田间定位试验与土壤理化性质测定相结合的方法，设置无覆盖对照（CK）及覆沙（FS）、覆膜（FM）和覆秸秆（FG）3种地表修复措施，研究了不同覆盖方式对盐碱地土壤理化性质及盐分离子分布特征的影响，以期为干旱区盐碱地改良及土地资源高效利用提供参考依据。结果表明：不同地表覆盖措施均能不同程度改善盐碱地土壤环境。与对照相比，各处理土壤pH、电导率及Na+、Cl-、SO2-4含量总体呈下降趋势，其中FG处理对表层土壤碱性和盐分抑制效果最为明显，0~20 cm土层pH和Na+含量降幅最大；FM处理对中深层土壤盐分调控作用较强，40~60 cm土层电导率及20~40 cm土层Cl-、SO2-4含量显著降低。养分方面，全氮和全磷含量总体有所提高，FS处理全氮含量最高，FM处理全磷积累效果最显著。相关性分析表明，表层土壤pH与电导率、Cl-和Na+呈显著正相关，而中下层土壤pH与全磷、电导率等指标多呈负相关。综上可知，覆秸秆措施在降低表层盐碱化程度、优化离子结构及促进养分积累方面效果较优，更适合作为河西走廊荒漠盐碱地长期改良措施；覆膜则可作为调控土壤水盐环境的重要辅助手段。
- Abstract:
- Taking the desert saline-alkali land in Jinta county,Gansu Province as the test object,the combination of field positioning test and soil physical and chemical properties determination was used to set up three surface restoration measures,no mulching control (CK),sand mulching (FS),film mulching (FM) and straw mulching (FG).The effects of different mulching methods on the physical and chemical properties of saline-alkali soil and the distribution characteristics of salt ions were studied,in order to provide references for the improvement of saline-alkali land and the efficient utilization of land resources in arid areas.The results showed that different surface mulching measures could improve the soil environment of saline-alkali land to varying degrees.Compared with the control,the soil pH,electrical conductivity and the contents of Na+,Cl- and SO2-4 in each treatment showed an overall downward trend.Among them,the FG treatment had the most obvious inhibitory effect on the alkalinity and salinity of the surface soil,and the pH and Na+ content in the 0-20 cm soil layer decreased the most.FM treatment had a strong effect on the regulation of soil salinity in the middle and deep soil layers,and the conductivity of 40-60 cm soil layer and the content of Cl- and SO2-4 in 20-40 cm soil layer decreased significantly.In terms of nutrients,the contents of total nitrogen and total phosphorus were generally improved,among which the total nitrogen content of FS treatment was the highest,and the total phosphorus accumulation effect of FM treatment was the most significant.Correlation analysis showed that the surface soil pH was significantly positively correlated with electrical conductivity,Cl- and Na+,while the middle and lower soil pH was negatively correlated with total phosphorus,electrical conductivity and other indicators.In conclusion straw mulching is more effective in reducing the degree of surface salinization,optimizing ion structure and promoting nutrient accumulation,and is more suitable as a long-term improvement measure for desert saline-alkali land in the Hexi Corridor;film mulching can be used as an important auxiliary means to regulate soil water and salt environment.
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备注/Memo
第一作者简介：贾鸿儒（1980-），男，硕士，副教授，现主要从事风景园林等研究工作。E-mail：214833039@qq.com.责任作者：越二寅（1982-），女，硕士，副教授，现主要从事建筑工程等研究工作。E-mail：65183481@qq.com.基金项目：金塔县2024年盐碱耕地综合治理利用试点资助项目；甘肃省自然科学基金资助项目（24JRRG016）；甘肃省高校产业支撑计划资助项目（2023CYZC-46）;甘肃省小陇山林区野生木本观赏植物评价与筛选资助项目（25JRRE014）。收稿日期：2026-04-09