南京林业大学学报（自然科学版）2026，Vol.50Issue(3)：36-44,9.DOI:10.12302/j.issn.1000-2006.202411017
有机物料添加对苏北盐碱地改良及薄壳山核桃生长的影响
Effects of adding organic materials on the soil improvement of northern Jiangsu alkali-saline and the growth of Carya illinoinensis
摘要
Abstract
[Objective]This research aims to explore the effects of different soil improvement measures on soil quality and enzyme activity of Carya illinoinensis forest,to provide the theory support for soil improvement and application in northern Jiangsu coastal areas.[Method]The experiment took the salt-alkali soil of northern Jiangsu as the research object,selected C.illinoinensis as the test material to conduct field experiments,and set up five treatments:biochar,straw,arbuscular mycorrhizal fungi(AMF),biochar+AMF,straw+AMF,and control.In November 2020,March 2021,July 2021,and October 2021,field investigations and sample collections were conducted,respectively,to compare and analyze the differences in soil quality and the growth of C.illinoinensis seedlings under various treatments.[Result]The combined application of biochar and AMF resulted in the highest seedling height and ground diameter of C.illinoinensis across all seasons.Individual biochar treatment,as well as combined treatments of straw,biochar and biochar+AMF,significantly reduced the soil pH in the[40,60)cm soil layer during November,2020,showing a decrease of 2.91％～3.75％compared to CK(P＜0.05).Both the sole biochar treatment and its combination with AMF significantly reduced soil electrical conductivity in the[20,40)cm soil layer during November,2020 and October,2021,as well as in the[40,60)cm soil layer during the November,2020 and March,2021,with reductions exceeding 20％compared to CK(P＜0.05).The sole biochar treatment and its combination with AMF effectively increased soil capillary porosity and non-capillary porosity,respectively.Additionally,the combined application of biochar and AMF significantly enhanced the availability of soil nutrients in the[40,60)cm soil layer during October,2021.[Conclusion]The biochar+AMF mixture emerged as the most effective soil amendment,suggesting that using it in conjunction with seasonal management could optimize soil health and promote silviculture in coastal regions.关键词
滨海盐碱地/土壤改良/薄壳山核桃/植物生长/土壤质量/丛枝菌根真菌Key words
coastal saline-alkali soil/soil amelioration/Carya illinoinensis/plant growth/soil quality/arbuscular mycorrhizal fungi(AMF)分类
农业科技引用本文复制引用
廖艺,曾婧祎,张金池,刘京,韩李荃,刘鑫,周悦湘,陈颖..有机物料添加对苏北盐碱地改良及薄壳山核桃生长的影响[J].南京林业大学学报（自然科学版）,2026,50(3):36-44,9.基金项目
江苏省科技项目(BE2022420) （BE2022420）
江苏省林业科技创新与推广项目(LYKJ[2021]30) （LYKJ[2021]30）
江苏高校优势学科建设工程资助项目(PAPD). （PAPD）
