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九寨沟优势植物凋落物叶片淋溶的碳氮磷释放特征

张婷 代群威 邓远明 李琼芳 董发勤 Bowen Li Bruce W.Fouke 李相邑

张婷, 代群威, 邓远明, 李琼芳, 董发勤, Bowen Li, Bruce W.Fouke, 李相邑. 九寨沟优势植物凋落物叶片淋溶的碳氮磷释放特征[J]. 中国岩溶, 2021, 40(1): 133-139. doi: 10.11932/karst20210114
引用本文: 张婷, 代群威, 邓远明, 李琼芳, 董发勤, Bowen Li, Bruce W.Fouke, 李相邑. 九寨沟优势植物凋落物叶片淋溶的碳氮磷释放特征[J]. 中国岩溶, 2021, 40(1): 133-139. doi: 10.11932/karst20210114
ZHANG Ting, DAI Qunwei, DENG Yuanming, LI Qiongfang, DONG Faqin, Bowen Li, Bruce W.Fouke, LI Xiangyi. Release characteristics of carbon, nitrogen and phosphorus from withered leaves of dominant plants in Jiuzhaigou valley[J]. CARSOLOGICA SINICA, 2021, 40(1): 133-139. doi: 10.11932/karst20210114
Citation: ZHANG Ting, DAI Qunwei, DENG Yuanming, LI Qiongfang, DONG Faqin, Bowen Li, Bruce W.Fouke, LI Xiangyi. Release characteristics of carbon, nitrogen and phosphorus from withered leaves of dominant plants in Jiuzhaigou valley[J]. CARSOLOGICA SINICA, 2021, 40(1): 133-139. doi: 10.11932/karst20210114

九寨沟优势植物凋落物叶片淋溶的碳氮磷释放特征

doi: 10.11932/karst20210114
基金项目: 国家自然科学基金面上项目(41877288,41973053,41572035)

Release characteristics of carbon, nitrogen and phosphorus from withered leaves of dominant plants in Jiuzhaigou valley

  • 摘要: 通过对九寨沟水体中两种优势植物落叶的碳氮磷淋溶动态分析发现:初期总溶解碳氮磷释放在48 h内逐渐稳定,表明短期的淋溶过程就可以导致较大比例的元素释放;磷的短期平均可溶出比例为29.61%,表明淋溶是植物磷元素释放的重要途径;估算得出九寨沟植物叶片碳氮磷贡献总量分别可达20 577 t.a-1,2 101 t.a-1,1 402 t.a-1。研究表明九寨沟植物凋落物淋溶是水体碳氮磷的重要来源,也是影响钙华沉积的重要因素。分析凋落物养分溶出特征,可为九寨沟生态系统的健康发展提供数据支撑。

     

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  • 发布日期:  2021-02-25

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