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首页> 外文期刊>Ecological research >Growth responses of Canada goldenrod [Solidago canadensis L.) to increased nitrogen supply correlate with bioavailability of insoluble phosphorus source
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Growth responses of Canada goldenrod [Solidago canadensis L.) to increased nitrogen supply correlate with bioavailability of insoluble phosphorus source

机译：加拿大菊科植物加拿大一枝黄花对氮供应增加的生长响应与不溶性磷源的生物利用度相关

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摘要

Anthropogenic nitrogen (N) inputs lead to the increase of phosphorus (P) demand for plants and plant species competition in a N enriched environment may hinge on its ability to utilize soil P sources. In soils, P mostly exists as insoluble phosphate compounds with three mineral elements: iron (Fe), aluminum (Al) or calcium (Ca), and it remains largely unknown whether invasive plant species are able to access such insoluble P sources and its interaction with N enrichment to gain competitive advantage. We determined the morphological traits, growth and nutrient status of an invasive plant Canada goldenrod (Solidago canadensis L.) cultured in soluble phosphate KH2PO4 (Ortho-P), and insoluble inorganic phosphate AlPO4 (Al-P), FePO4 (Fe-P), Ca-5(OH)(PO4)(3) (Ca-P) at three N supply levels. Results showed that S. canadensis was able to selectively utilize P from Al-P but not from Fe-P or Ca-P by increasing root number and length under N additions. The increasing growth in S. canadensis was closely correlated with the increasing foliar P. Ability to utilize insoluble P sources under enriched N environment serves as a competitive advantage for S. canadensis in Al rich soils. Effective control of S. canadensis invasion may need to consider soil P management in the context of atmospheric N deposition as well.
机译：人为氮（N）输入导致植物对磷（P）的需求增加，在富氮环境中植物物种的竞争可能取决于其利用土壤磷源的能力。在土壤中，磷主要以不溶性磷酸盐化合物的形式存在，具有三种矿质元素：铁（Fe），铝（Al）或钙（Ca），并且入侵植物物种是否能够获取此类不溶性P来源及其相互作用尚不清楚。通过N富集获得竞争优势。我们确定了在可溶性磷酸盐KH2PO4（Ortho-P）和不溶性无机磷酸盐AlPO4（Al-P），FePO4（Fe-P）中培养的入侵植物Canada Goldenrod（Solidago canadensis L.）的形态特征，生长和营养状况，Ca-5（OH）（PO4）（3）（Ca-P）在三个氮供应水平下。结果表明，在添加氮的条件下，加拿大根菜能够通过增加根数和根长来选择性利用Al-P中的P，而不利用Fe-P或Ca-P中的P。加拿大S.canadensis的增长与叶片P的增加密切相关。在富氮环境下利用不溶性P源的能力为加拿大S.canadensis在富铝土壤中的竞争优势。要有效控制加拿大链球菌的入侵，还需要在大气氮沉降的背景下考虑土壤磷的管理。

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  • 来源
    《Ecological research》 |2018年第1期|261-269|共9页
  • 作者

    Wan Ling-Yun; Qi Shan-Shan; Dai Zhi-Cong; Zou Chris B.; Song Yi-Ge; Hu Zhi-Yuan; Zhu Bin; Du Dao-Lin;

  • 作者单位

    Jiangsu Univ, Acad Environm Hlth & Ecol Secur, Inst Environm & Ecol, Sch Environm & Safety Engn, Zhenjiang 212013, Peoples R China;

    Jiangsu Univ, Acad Environm Hlth & Ecol Secur, Inst Environm & Ecol, Sch Environm & Safety Engn, Zhenjiang 212013, Peoples R China;

    Jiangsu Univ, Acad Environm Hlth & Ecol Secur, Inst Environm & Ecol, Sch Environm & Safety Engn, Zhenjiang 212013, Peoples R China;

    Oklahoma State Univ, Dept Nat Resource Ecol & Management, Stillwater, OK 74078 USA;

    Jiangsu Univ, Acad Environm Hlth & Ecol Secur, Inst Environm & Ecol, Sch Environm & Safety Engn, Zhenjiang 212013, Peoples R China;

    Jiangsu Univ, Acad Environm Hlth & Ecol Secur, Inst Environm & Ecol, Sch Environm & Safety Engn, Zhenjiang 212013, Peoples R China;

    Univ Hartford, Dept Biol, 200 Bloomfield Ave, Hartford, CT 06117 USA;

    Jiangsu Univ, Acad Environm Hlth & Ecol Secur, Inst Environm & Ecol, Sch Environm & Safety Engn, Zhenjiang 212013, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Canada goldenrod (Solidago canadensis L.); Insoluble phosphorus; Nitrogen addition; Growth;

    机译：加拿大金毛So;不溶性磷;氮素添加;生长;

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