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Uptake of inorganic nitrogen between understory shrubs and replanted broadleaved trees in a subtropical plantation

文献类型：期刊论文

作者Liu, Qianyuan3; Kou, Liang1,2; Meng, Shengwang1,2; Yang, Fengting1,2; Fu, Xiaoli1,2; Wang, Huimin1,2
刊名PLANT AND SOIL
出版日期2025-08-19
卷号N/A
关键词Inorganic nitrogen uptake Shrub Underplanting Competitive response Root traits
ISSN号0032-079X
DOI10.1007/s11104-025-07741-8
产权排序2
文献子类Article ; Early Access
英文摘要Background and aimsReplanting broadleaved saplings under pine trees is an effective measure to optimize the forest structure, and it is important to assess the interspecific interaction between replanted saplings and understory vegetation in the early stage.MethodsWe measured the interspecific relationship and nitrogen uptake of supplementary broadleaved saplings (Michelia maudiae, Schima superba, and Liquidambar formosana) and an understory shrub (Loropetalum chinense) under a Pinus elliottii plantation. This was accomplished by setting up double- and single-root bag experiments with a 15N isotope labelling method.ResultsThe three supplementary broadleaved species and an understory shrub (L. chinense) showed a preference for ammonium nitrogen over nitrate nitrogen. The effects of interspecific interactions on root mycorrhizal colonization rates and root branching were not significant, but there were obvious effects on specific root length, root biomass, and nitrogen uptake rate. When the replanted broadleaved trees mixed with L. chinense, the growth of their roots was inhibited, while that of the L. chinense was promoted. However, when L. chinense roots were mixed with M. maudiae or L. formosana roots, their inorganic nitrogen uptake rate decreased compared with when grown alone. The interactions of L. chinense x M. maudiae and L. chinense x L. formosana exhibited interspecific competition in root uptake of inorganic nitrogen, while L. chinense x S. superba exhibited a neutral interaction. S. superba adopted a strategy of constant root biomass with a slightly increased nitrogen uptake rate in response to interaction, and L. chinense exhibited higher root biomass and enhanced morphological traits (i.e., higher specific root length).ConclusionThe nitrogen uptake amount of L. chinense was higher when coexisting with S. superba, compared with that of M. maudiae and L. formosana. This indicates that S. superba is more suitable than M. maudiae and L. formosana to be underplanted as a supplementary species to optimize the structure of pure pine forest.
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WOS关键词N-15 NATURAL-ABUNDANCE ; ROOT TRAITS ; EUROPEAN BEECH ; SOIL-NITROGEN ; INTERSPECIFIC COMPETITION ; POSITIVE INTERACTIONS ; FORAGING STRATEGIES ; SPECIES-DIVERSITY ; FAGUS-SYLVATICA ; FOREST
WOS研究方向Agriculture ; Plant Sciences
语种英语
WOS记录号WOS:001552566300001
出版者SPRINGER
源URL[http://ir.igsnrr.ac.cn/handle/311030/215616]  
专题千烟洲站森林生态系统研究中心_外文论文
通讯作者Wang, Huimin
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Qianyanzhou Ecol Res Stn, Beijing 100101, Peoples R China;
2.Univ Chinese Acad Sci, Coll Resource & Environm, Beijing 100190, Peoples R China
3.Hebei Normal Univ, Sch Geog Sci, Shijiazhuang 050024, Hebei, Peoples R China;
推荐引用方式
GB/T 7714		 Liu, Qianyuan,Kou, Liang,Meng, Shengwang,et al. Uptake of inorganic nitrogen between understory shrubs and replanted broadleaved trees in a subtropical plantation[J]. PLANT AND SOIL,2025,N/A.
APA Liu, Qianyuan,Kou, Liang,Meng, Shengwang,Yang, Fengting,Fu, Xiaoli,&Wang, Huimin.(2025).Uptake of inorganic nitrogen between understory shrubs and replanted broadleaved trees in a subtropical plantation.PLANT AND SOIL,N/A.
MLA Liu, Qianyuan,et al."Uptake of inorganic nitrogen between understory shrubs and replanted broadleaved trees in a subtropical plantation".PLANT AND SOIL N/A(2025).

入库方式： OAI收割

来源：地理科学与资源研究所

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