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首页> 外文会议>International Conference on Energy and Environmental Protection >Leaf N, P stoichiometry and nutrient resorption in phosphorus-enriched soils in a mountainous region of the Dianchi Lake watershed
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Leaf N, P stoichiometry and nutrient resorption in phosphorus-enriched soils in a mountainous region of the Dianchi Lake watershed

机译：滇池流域山区富含磷土壤中的叶N，P化学计量和营养吸收

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摘要

Understanding the leaf N, P concentrations and nutrient resorption of plants growing in phosphorus-enriched soil (PES) can provide new data for ecostoichiometric research and ecological model building. In this study, 117 green leaves and 53 senesced leaves of dominant plants in PES in the Dianchi Lake watershed, SW China, were sampled. Plants in PES had high fresh leaf P (4.60mg/g), senesced leaf P (2.70mg/g), and low fresh leaf N: P (4.41), senesced leaf N: P (3.21). P resorption efficiency (PRE) (25.09%) was significantly lower than N resorption efficiency (NRE) (52.68%). Forbs had the highest P content in fresh (5.35mg/g) and senesced leaf (3.25mg/g) among plants forms. Although NRE was varied among plant forms, the difference in PRE was not significant. In conclusion, PES has a tremendous impact on the patterns of leaf N, P and nutrient resorption of different plant forms, those results were different from general results.
机译：了解富含磷土壤（PES）生长的植物的叶片N，P浓度和营养吸收，可以为Ecostoichiome计量研究和生态模型建设提供新数据。在这项研究中，在SW中国的滇池流域的PES中，117个绿叶和53个占优势植物的叶子。 PE中的植物具有高新叶P（4.60mg / g），叶片p（2.70mg / g），低新鲜叶片n：p（4.41），sinesced叶n：p（3.21）。 P吸收效率（Pre）（25.09％）显着低于NRE吸收效率（NRE）（52.68％）。 Forbs在植物形式中具有新鲜（5.35mg / g）和院长的叶子（3.25mg / g）的最高P含量。虽然NRE在植物形式中变化，但前前的差异并不重要。总之，PE对不同植物形式的叶片N，P和养分吸收的模式产生了巨大影响，这些结果与一般结果不同。

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