Age alters uptake pattern of organic and inorganic nitrogen by rubber trees
文献类型：期刊论文
| 作者 | Liu, Min2,3,4; Xu, Fanzhen1; Xu, Xingliang2,3; Wanek, Wolfgang5; Yang, Xiaodong2 |
| 刊名 | TREE PHYSIOLOGY
 |
| 出版日期 | 2018-11-01 |
| 卷号 | 38期号:11页码:1685-1693 |
| 关键词 | arbuscular mycorrhizae inorganic N organic N rubber tree age |
| ISSN号 | 0829-318X |
| DOI | 10.1093/treephys/tpy031 |
| 通讯作者 | Xu, Xingliang(xuxingl@hotmail.com) |
| 英文摘要 | Several studies have explored plant nutrient acquisition during ecosystem succession, but it remains unclear how age affects nitrogen (N) acquisition by the same tree species. Clarifying the age effect will be beneficial to fertilization management through improving N-use efficiency and reducing the risk of environmental pollution due to NO3- leaching. To clarify the effect of age on N uptake, rubber (Hevea brasiliensis (Willd. ex A. Juss.) Muell. Arg.) plantations of five ages (7, 16, 24, 32 and 49 years) were selected in Xishuangbanna of southern China for brief N-15 exposures of intact roots using field hydroponic experiments. N-15-labeled NH4+, NO3- or glycine were applied in this study. All targeted rubber trees uptake rates followed an order of NH4+ > glycine > NO3-. As age increased, NH4+ uptake increased first and then decreased sharply, partly consistent with the pattern of soil NH4+ concentrations. Uptake of glycine decreased first and then increased gradually, while no significant change of NO3- uptake rates existed with increasing age. Overall, rubber trees with ages from 7 to 49 years all showed a preference for NH4+ uptake. Young rubber trees (7 and 16 years) had higher NH4+ and lower glycine preferences than older trees (24, 32 and 49 years). Mycorrhizal colonization rates of rubber trees were higher in intermediately aged plantations (16, 24 and 32 years) than in plantations aged 7 and 49 years. A positive relationship was observed between arbuscular mycorrhizal colonization rates and NO3- preference. The results from this study demonstrate that rubber trees do not change their preference for NH4+ but strongly decreased their reliance on it with age. These findings indicate that the shift of N uptake patterns with age should be taken into account for rubber fertilization management to improve N-use efficiency and reduce the risk of environmental pollution during rubber production. |
| WOS关键词 | DIFFERENT SUCCESSIONAL STAGES ; MYCORRHIZAL FUNGI ; NITRATE ; ROOT ; PHOTOSYNTHESIS ; PLANTS ; PRODUCTIVITY ; GROUNDWATER ; ACQUISITION ; ECOSYSTEMS |
| 资助项目 | National Natural Science Foundation of China[31470560] ; National Natural Science Foundation of China[41601318] ; Key Laboratory of Tropical Forest Ecology of Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences ; Youth Innovation Research Team Project[LENOM2016Q0004] |
| WOS研究方向 | Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:000452458300007 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | National Natural Science Foundation of China ; Key Laboratory of Tropical Forest Ecology of Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences ; Youth Innovation Research Team Project |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/51339]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Xu, Xingliang |
| 作者单位 | 1.Laibin Acad Agr Sci, Renmin Rd, Laibin 546100, Guangxi Provinc, Peoples R China 2.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Mengla 666303, Yunnan, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, 11A Datun Rd, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 101408, Peoples R China 5.Univ Vienna, Res Network Chem Meets Microbiol, Div Terr Ecosyst Res, Dept Microbiol & Ecosyst Sci, Althanstr 14, A-1090 Vienna, Austria |
| 推荐引用方式 GB/T 7714 | Liu, Min,Xu, Fanzhen,Xu, Xingliang,et al. Age alters uptake pattern of organic and inorganic nitrogen by rubber trees[J]. TREE PHYSIOLOGY,2018,38(11):1685-1693. |
| APA | Liu, Min,Xu, Fanzhen,Xu, Xingliang,Wanek, Wolfgang,&Yang, Xiaodong.(2018).Age alters uptake pattern of organic and inorganic nitrogen by rubber trees.TREE PHYSIOLOGY,38(11),1685-1693. |
| MLA | Liu, Min,et al."Age alters uptake pattern of organic and inorganic nitrogen by rubber trees".TREE PHYSIOLOGY 38.11(2018):1685-1693. |
入库方式： OAI收割
来源：地理科学与资源研究所
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