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作者中文名	作者英文名	单位中文名	单位英文名	E-Mail
任玲慧	REN Ling-hui	北京中医药大学中药学院，北京 102488	School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
郭星妤	GUO Xing-yu	北京中医药大学中药学院，北京 102488	School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
郭宜欣	GUO Yi-xin	北京中医药大学中药学院，北京 102488	School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
鲜伊莎	XIAN Yi-sha	北京中医药大学中药学院，北京 102488	School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
唐诗成	TANG Shi-cheng	北京中医药大学中药学院，北京 102488	School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
田新	TIAN Xin	北京中医药大学中药学院，北京 102488	School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
张子龙*	ZHANG Zi-long	北京中医药大学中药学院，北京 102488	School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China

基金项目:中华环境保护基金会美团外卖青山公益专项（CEPFQS202169-19）

中文摘要:目的探究林下不同生长年限滇黄精根区土壤微生物群落结构和土壤环境因子的变化，为实现滇黄精林下可持续种植提供参考。方法对云南省禄劝彝族苗族自治县栽培1、2、3年滇黄精的林下土壤及未开发林下土壤进行土壤理化性质、酶活性检测和高通量测序。结果滇黄精根区土壤pH、全磷和速效钾的含量随种植年限的增加而降低，有机质、全氮、速效磷的含量随种植年限的增加而增加。与原生林地比较，种植1、2、3年的滇黄精根区土壤脲酶活性显著降低，过氧化氢酶活性显著增加。此外，种植滇黄精后，土壤细菌、真菌的多样性和丰度增加，且原生林地土壤与滇黄精根区土壤细菌、真菌群落结构存在差异，不同种植年限滇黄精土壤细菌、真菌群落结构相似。pH、速效氮、脲酶、酸性磷酸酶、过氧化氢酶是引起土壤细菌、真菌群落变化的主要土壤因子。结论种植滇黄精对林地土壤的理化性质、酶活性和微生物群落结构造成一定影响，不同土壤因子及土壤微生物的响应不同。研究结果为建立滇黄精林下可持续种植模式、提高滇黄精品质提供了参考。

中文关键词:滇黄精林下种植土壤理化性质酶活性微生物群落

Effect of Polygonatum kingianum Understory Interplanting Mode on Soil Physicochemical Properties and Microbial Community

Abstract:Objective To explore the changes in soil microbial community structure and soil environmental factors in the root zone of Polygonatum kingianum with different years of growth in the understory to provide references for achieving sustainable cultivation of P. kingianum in the understory.Methods Soil physicochemical properties, enzyme activities, and high-throughput sequencing were conducted on the understory soil of P. kingianum cultivated for 1, 2, and 3 years in Luquan Yi and Miao Autonomous County, Yunnan Province, as well as on the undeveloped understory soil.Results The pH, total phosphorus, and available potassium content in the soil of the P. kingianum root zone decreased with increasing years of cultivation, while the organic matter, total nitrogen, and available phosphorus content increased with increasing years of cultivation. Compared with the original forest land, the urease activity in the soil of P. kingianum root zone planted for 1, 2, and 3 years significantly decreased, while the catalase activity significantly increased. Additionally, after planting P. kingianum, the diversity and abundance of soil bacteria and fungi increased. There were differences in the bacterial and fungal community structures between the soil of the original forest land and the soil of the P. kingianum root zone, while the bacterial and fungal community structures in the soil of P. kingianum with different cultivation years were similar. Soil pH, available nitrogen, urease, acid phosphatase, and catalase were the main soil factors causing changes in soil bacterial and fungal communities.Conclusion Planting P. kingianum has certain effects on the physicochemical properties of forest soil, enzyme activities, and microbial community structure, with different responses from various soil factors and soil microbes. The research results provide a reference for establishing sustainable cultivation models in the understory of P. kingianum and improving the quality of P. kingianum.

keywords:Polygonatum kingianum Coll.et Hemsl. understory interplanting physical and chemical properties of soil enzyme activities microbiology community

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