森林与环境学报2026，Vol.46Issue(2)：113-122,10.DOI:10.13324/j.cnki.jfcf.202508014
杉木-木荷混交林对土壤磷形态与解磷微生物组成的影响
Effects of Cunninghamia lanceolata-Schima superba mixed plantation on soil phosphorus fractions and phosphate-solubilizing microbial community composition
摘要
Abstract
This study investigated the effects of Cunninghamia lanceolata-Schima superba mixed plantation on soil phosphorus(P)availability.The soil chemical properties,P fractions,enzyme activities,and the structures of phoC-harboring phosphate-solubilizing microbial communities across different soil depths(0-5,5-15,15-30,30-60 cm)of 7-year-old C.lanceolata pure plantation,C.lanceolata-S.superba mixed plantation,and S.superba pure plantation were investigated.The results showed that the content of labile P and moderately labile P in the 0-5 cm and 5-15 cm soil layers of the mixed plantation and pure S.superba plantation were higher than that in the pure C.lanceolata plantation(P<0.05).The difference in acid phosphatase activity among different plantation types was only significant in the 0-5 cm topsoil(P<0.05).Phytase activity in the mixed plantation and pure S.superba plantation was higher than that in the pure C.lanceolata plantation across all soil depths(P<0.05).Furthermore,compared with the pure C.lanceolata plantation,the mixed plantation and pure S.superba plantations exhibited higher alpha diversity of the phoC-harboring phosphate-solubilizing microbial community,primarily in the 5-15 cm and 15-30 cm soil layers(P<0.05).Correlation analysis indicated that soil chemical properties,P fractions,and enzyme activities were closely correlated with the community structure of phosphate-solubilizing microorganisms.The results suggest that the mixed plantation and pure S.superba plantation enhance the metabolic activity of the phosphate-solubilizing microbial community to promote the release of labile P,thus alleviating soil P limitation.关键词
杉木/木荷/混交林/土壤磷组分/酶活性/土壤phoC解磷微生物Key words
Cunninghamia lanceolata/Schima superba/mixed plantation/soil phosphorus fractions/enzyme activity/soil phoC-harboring phosphate-solubilizing microorganisms分类
农业科技引用本文复制引用
闫洁,王淑真,郑汉阳,陈良喜,周垂帆,俞元春..杉木-木荷混交林对土壤磷形态与解磷微生物组成的影响[J].森林与环境学报,2026,46(2):113-122,10.基金项目
国家"十四五"重点研发计划"揭榜挂帅"项目"杉木用材林定向培育技术研究"课题"杉木人工林近自然改造技术"(2021YFD2201304) （2021YFD2201304）
江苏高校优势学科建设工程资助项目(PAPD). （PAPD）
