文章摘要
王舒华, 陈爽, 王悦, 李圆宾, 徐璐瑶, 王强, 李莹飞, 薛鹏飞, 焦加国, 李辉信, 胡锋.不同有机物料对盐碱土的淋洗效果研究[J].水土保持学报,2021,35(6):376~383
不同有机物料对盐碱土的淋洗效果研究
Study on Leaching Effect of Different Organic Materials on Saline-alkali Soil
投稿时间:2021-05-25  
DOI:10.13870/j.cnki.stbcxb.2021.06.050
中文关键词: 有机物料  盐碱土  土柱淋洗
英文关键词: organic materials  saline-alkali soil  soil column leaching
基金项目:山东省重点研发计划项目(2019JZZY020614)
作者单位E-mail
王舒华1, 陈爽1, 王悦1, 李圆宾1, 徐璐瑶1, 王强2, 李莹飞2, 薛鹏飞2, 焦加国1, 李辉信1, 胡锋1 1. 南京农业大学资源与环境科学学院, 江苏省有机固体废弃物资源化协同创新中心, 南京 210095

2. 山东博华高效生态农业科技有限公司
, 山东 滨州 256500 
jiaguojiao@njau.edu.cn 
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中文摘要:
      主要通过土柱模拟试验探究不同有机物料对渗滤液的盐分和可溶性有机碳(DOC)以及不同深度土壤盐分、有机质和微生物生物量碳氮的影响,设置有机硅功能肥(WO)、颗粒状有机物料(YP)、粉末状有机物料(GG)、颗粒状有机物料和粉末状有机物料各50%(YG)以及不添加有机物料(CK)共5个处理。结果表明,有机物料的添加提高了渗滤液的EC值及水溶性Ca2+、Mg2+和Na+含量,YP处理的渗滤液盐基离子含量最高,而WO处理的渗滤液中DOC含量最低;与CK处理相比,WO处理显著提高各深度土层的水溶性Ca2+、Mg2+和K+含量,显著降低各深度土层的pH、交换性Na+、碱化度(ESP)和0—20 cm土层的水溶性Na+和钠吸附比(SAR),但其他有机物料的处理对pH、EC值和盐分等无显著影响;淋洗作用使表层土壤(0—20 cm)盐分向土壤深层移动,淋洗结束后,各处理的土壤EC值、水溶性总盐、交换性Na+和ESP随着土层深度的增加而升高;与CK处理相比,GG和YG处理显著提高0—20 cm土层的有机质含量,分别提高23.97%和20.53%。研究结果为有机物料的添加对盐碱地淋洗过程中盐分和有机质的变化提供了理论的数据参考。
英文摘要:
      In this study, the effects of different organic materials on the salinity and dissolved organic carbon (DOC) of leachate and the salinity, organic matter and microbial carbon and nitrogen in different depths of soil were studied by soil column simulation test, including five different treatments: organic silicon functional fertilizer (WO), particle organic materials (YP), powder organic materials (GG), 50% particle organic materials and 50% powder organic materials mixed respectively (YG) and no organic materials (CK). The results showed that the addition of organic materials increased the EC value and water-soluble Ca2+, Mg2+ and Na+ concentration in the leachate. The contents of salt ions leached by YP treatment were the highest, but the content of DOC in the leachate treated by WO was the lowest. Compared with CK treatment, WO treatment significantly increased the water-soluble Ca2+, Mg2+ and K+ contents in each depth of soil layer, significantly reduced the pH, exchangeable Na+, exchangeable solium percentage (ESP) in each depth of soil layer, and water-soluble Na+, sodium absorption ratio (SAR) in 0—20 cm soil layer, but there was no significant difference in pH, EC and salinity between other organic materials and CK treatment. Leaching moved the soil salt from the surface (0—20 cm) to the deeper layers. After leaching, EC value, water-soluble total salt, exchangeable Na+ and ESP increased with the increase of soil depth. Compared with CK treatment, GG and YG treatment significantly increased the content of organic matter in 0—20 cm soil layer by 23.97% and 20.53%, respectively. These results could provide a theoretical data reference for the changes of salt and organic matter in the process of saline-alkali soil leaching with the addition of organic materials.
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