不同植被恢复模式对燕山石质山地土壤养分含量的影响  

Effects of different vegetation restoration models on soil nutrient content in stony mountain of Yanshan

作　　者：曹宇朦 卢金平 许中旗 马娇娇 魏浩亮 CAO Yumeng;LU Jinping;XU Zhongqi;MA Jiaojiao;WEI Haoliang(College of Forestry,Hebei Provincial Key Laboratory of Forest Germplasm Resources and Forest Protection,Baoding 071000,China;Mulanweichang National Forestry Administration of Hebei Province,Weichang 068450,China)

机构地区：[1]河北农业大学林学院,河北省林木种质资源与森林保护重点实验室,河北保定071000 [2]河北省木兰围场国有林场,河北围场068450

出　　处：《林业与生态科学》2025年第2期189-196,共8页Forestry and Ecological Sciences

基　　金：河北省科技计划(17236801D);国家科技支撑计划(2015BAD07B02)。

摘　　要：为了了解不同植被恢复模式对燕山石质山地土壤养分的影响,以燕山北部地区2种植被恢复模式,即人工纯林和人工混交林为研究对象,设置2组对比试验(纯林试验组和混交林试验组),采用野外调查与室内分析相结合的方法,研究了造林16 a后,不同植被恢复模式之间土壤养分的差异。结果表明:(1)人工纯林和混交林的土壤全氮含量显著高于对照(P<0.05),油松纯林、樟子松纯林和混交林与对照相比分别提高了176.02%、121.05%和137.28%。(2)油松纯林、樟子松纯林和混交林土壤有效氮含量与对照相比分别提高了28.07%、28.29%和30.37%。(3)油松纯林和混交林与对照相比土壤全磷含量分别提高24.24%和14.10%,樟子松纯林则降低了4.55%。(4)油松纯林、樟子松纯林和混交林土壤有效磷含量与对照相比分别提高了49.92%、46.41%和81.71%。(5)油松纯林、樟子松纯林和混交林恢复模式使得土壤有机质含量分别提高22.46%、7.73%和44.80%。综上所述,2种植被恢复模式均能提升土壤全氮、有效氮、有效磷和有机质含量,混交林对土壤有效氮、有效磷和有机质含量的提升效果均优于油松和樟子松纯林。In order to understand the effects of different vegetation restoration modes on soil nutrients,this study took two plantation restoration modes,namely artificial pure forest and artificial mixed forest,in the stony mountains of northern Yanshan as the research objects,and set two groups of comparative experiments(pure forest experimental group and mixed forest experimental group).The areas with similar slope position,slope and site conditions without afforestation were selected in the two groups as the same plots to study the differences of soil nutrients between different vegetation restoration modes after 16 years of afforestation by combining field investigation and indoor analysis.The results show that:(1)The soil total nitrogen content of pure plantation and mixed plantation was significantly higher than that of control(P<0.05).Compared with the control,Pinus tabuliformis forest,Pinus sylvestris forest and mixed forest increased by 176.02%,121.05%and 137.28%,respectively.(2)Compared with the control,the soil available nitrogen content of Pinus tabuliformis pure forest,Pinus sylvestris pure forest and mixed forest increased by 28.07%,28.29%and 30.37%respectively.(3)Compared with the control,total phosphorus content in pure and mixed forests of Pinus tabuliformis increased by 24.24%and 14.10%,respectively,while pure forests of Pinus sylvestris decreased by 4.55%.(4)Compared with the control,the soil available phosphorus content of Pinus tabuliformis,Pinus sylvestris and mixed forest was increased by 49.92%,46.41%and 81.71%,respectively.(5)The soil organic matter content increased by 22.46%,7.73%and 44.80%in the restoration mode of Pinus tabuliformis,Pinus sylvestris and mixed forest,respectively.In conclusion,both restoration modes can increase the contents of total nitrogen,available nitrogen,available phosphorus and organic matter in soil,and the effects of mixed forest on the contents of available nitrogen,available phosphorus and organic matter in soil are better than those of pure forest of Pinus tabulifo

关 键 词：植被恢复模式 土壤养分 退化石质山地 

分 类 号：S718.5[农业科学—林学]