地质与资源2026，Vol.35Issue(4)：450-458,9.DOI:10.13686/j.cnki.dzyzy.2026.04.008
黄河三角洲地区农田盐斑土壤剖面的盐碱特性及成因分析
Salinity characteristics and genesis analysis of soil profiles of salt-affected patches in cropland of the Yellow River Delta
摘要
Abstract
To support the rational utilization of soil resources and the high-quality development of modern agriculture and grassland-based animal husbandry in the Yellow River Delta,we used adjacent non-salt-patch plots as controls and employed a combined approach of soil profile characterization and quantitative analysis.We measured total salt content,pH,and concentrations of major anions(Cl-,SO42-,HCO3-and CO32-)and cations(Ca2+,Mg2+,Na+and K+)in different layers of the soil profiles down to 160 cm.The results revealed that the average total salt content in salt-patch soils(8.66％)was significantly higher than that in non-salt-patch soils(3.24％),and decreased markedly with depth in the cultivated layer(0-40 cm).The pH of salt-patch soils(8.26)did not differ greatly from that of non-salt-patch soils(8.31),yet varied substantially among different layers within the salt-patch profiles.In terms of ionic composition,the salts in both soil types were dominated by chloride(0.45％and 0.20％,respectively),sulfate(0.10％and 0.14％),and calcium and magnesium ions,with no carbonate ions detected.Soil water content and bulk density exhibited little difference between the two soil types,except that the bulk density in the cultivated layer of salt-patch soils was significantly higher than that of non-salt-patch soils.关键词
农田/盐斑土壤/土壤盐碱性/黄河三角洲Key words
cropland/salt-patch soil/soil salinity/Yellow River Delta分类
天文与地球科学引用本文复制引用
王兵,窦文骏,刘春富,林佳洲,来剑斌..黄河三角洲地区农田盐斑土壤剖面的盐碱特性及成因分析[J].地质与资源,2026,35(4):450-458,9.基金项目
国家自然科学基金区域创新发展联合基金项目"高质量发展背景下黄河下游灌区水盐过程模拟与调控"(U22A20555) （U22A20555）
中国科学院战略先导科技专项"黄三角重度盐碱地偃麦草高产栽培技术"(XDA26040105) （XDA26040105）
中国地质调查局烟台海岸带地质调查中心项目"黄河三角洲自然资源综合调查监测与评价"(ZD20220143). （ZD20220143）
