套种多花黄精对杜英人工林土壤性质的影响  

Effects of interplanting Polygonatum cyrtonema on soil properties of Elaeocarpus decipiens plantation

作　　者：梁焕焕 李婷 胡小红[1,3] 龚斌 贾全全[1,3] 朱培林 LIANG Huan-huan;LI Ting;HU Xiao-hong;GONG Bin;JIA Quan-quan;ZHU Pei-lin(Jiangxi Academy of Forestry Sciences,Nanchang Jiangxi 330032;Forestry of College,Jiangxi Agricultural University,Nanchang Jiangxi 330045;Key Laboratory of Traditional Chinese Medicine Planting Technology and Quality Research of Nanchang City,Nanchang Jiangxi 330032)

机构地区：[1]江西省林业科学院,江西南昌330032 [2]江西农业大学林学院,江西南昌330045 [3]南昌市中药材种植技术与质量研究重点实验室,江西南昌330032

出　　处：《中国土壤与肥料》2022年第11期148-153,共6页Soil and Fertilizer Sciences in China

基　　金：江西省林业局林业科技创新专项(创新专项[2021]18号);国家重点研发计划项目子课题(2017YFC05055051)。

摘　　要：为明确林下套种多花黄精(Polygonatum cyrtonema Hua.)对杜英(Elaeocarpus decipiens Hemsl.)林土壤物理性质及肥力的作用,选取杜英套种多花黄精复合林和杜英纯林两种林分类型为研究对象,通过采集2018和2019年各林分土壤剖面样品检测,分析5~10和15~20 cm土层土壤理化性质及其林分生长差异。结果表明,与2018年比,2019年杜英多花黄精复合林与杜英纯林间不同土层饱和持水量、田间持水量、含水量变化的差值均逐渐缩小,分别缩小81.66~124.48、56.69~143.45、10.29~26.17 g/kg;与杜英纯林相比,杜英多花黄精复合林可有效提高5~10 cm土层全磷、速效钾含量以及pH值,分别提高0.001~0.042 g/kg、19.992~23.655 mg/kg、0.09~0.13。杜英林下套种多花黄精对土壤物理性质及养分有显著影响,可以改善土壤结构和性质,有利于提高林地生态和经济效益。In order to clarify the effect of soil physical properties and fertility of Elaeocarpus decipiens plantation by interplanting Polygonatum cyrtonema,two stands(pure plantation of Elaeocarpus decipiens and mixed plantation with Elaeocarpus decipiens and Polygonatum cyrtonema)were selected.By collecting soil profile samples of each stand in 2018and 2019,soil physical and chemical properties of 5 ~ 10 and 15 ~ 20 cm layers and their differences in stand growth were analyzed.The results showed that,compared with 2018,the differences of soil saturated water holding capacity,field capacity,water content in different soil layers between mixed plantation and pure plantation decreased gradually in 2019,decreased by 81.66 ~ 124.48,56.69 ~ 143.45,10.29 ~ 26.17 g/kg,respectively.Compared with pure plantation of Elaeocarpus decipiens,mixed plantation with Elaeocarpus decipiens and Polygonatum cyrtonema can effectively improve the total phosphorus,available potassium and pH in 5 ~ 10 cm soil layer,raising by 0.001 ~ 0.042 g/kg,19.992 ~ 23.655mg/kg and 0.09 ~ 0.13,respectively.The interplant has significant effects on soil physical properties and nutrients and can improve soil structure and properties.It is beneficial to improve the ecological and economic benefits of the plantation.

关 键 词：套种 多花黄精 杜英林 物理性质 土壤养分 

分 类 号：S714[农业科学—林学] S567.239S792.99