不同种植年限榛地土壤基本理化性质及腐殖物质组成  

Basic Physicochemical Properties and Humus Composition of Soil in Hazelnut Fields with Different Planting Years

作　　者：张博岩 窦森[1] 张笑唯 ZHANG Boyan;DOU Sen;ZHANG Xiaowei(College of Resources and Environment,Jilin Agricultural University,Changchun 130118,China)

机构地区：[1]吉林农业大学资源与环境学院,长春130118

出　　处：《吉林农业大学学报》2022年第3期345-351,共7页Journal of Jilin Agricultural University

基　　金：科技部东北黑土区侵蚀沟生态修复关键技术研发与集成示范项目(2017YFC0504200)。

摘　　要：以种植榛子年限分别为2、4、5和8年的土壤为对象,研究种植榛子对土壤基本理化性质及腐殖物质组成的影响,对榛子栽培的有效管理、园林土壤的可持续利用及水土保持效果具有重要的理论研究意义和实践指导价值。研究结果表明,在种植榛子0~8年中,榛子的茎粗、茎围、年产量、均果重在第8年时达到最大。在种植榛子后,土壤碱解氮、速效磷、速效钾含量和容重升高,pH降低。随榛子种植年限延长至5年,土壤有机质、胡敏酸、富里酸含量和PQ值降低至最低点,但第8年回升。随榛子种植年限延长至8年,胡敏素含量降低至最低点。种植年限超过8年后,凋落物继续增加,土壤有机质、胡敏酸、富里酸含量和PQ值是否会继续增加,则需要进一步的研究来证实。Taking the soil with planting hazelnut for 2,4,5 and 8 years as the object,we studied the effects of planting hazelnut on the basic physical and chemical properties of soil and humus composition,which is of important theoretical research significance and practical guiding value for the effective management of hazelnut cultivation,the sustainable utilization of garden soil and the effect of soil and water conservation.The results showed that in 0-8 years of planting hazelnut the stem diameter,stem circumference,annual yield and average fruit weight of hazelnut reached the maximum in the 8th year.After planting hazelnut,the content of alkaline hydrolyzed nitrogen,available phosphorus,available potassium and bulk density of soil increased,while pH value decreased.With the extension of hazelnut planting years to 5 years,the content of soil organic matter,humic acid,fulvic acid and PQ value decreased to the lowest point,but rebounded in the 8th year.With the extension of hazelnut planting years to 8 years,the humin content decreased to the lowest point.After more than 8 years of planting,the litter continued to increase.Whether soil organic matter,humic acid,fulvic acid content and PQ value would continue to increase,further research was needed to confirm.

关 键 词：榛子 种植年限 土壤有机质 腐殖物质组成 

分 类 号：S153[农业科学—土壤学]