王卓敏, 刘小川, 薛立, 邵怡若, 张越, 李银. 广州南沙园林植物叶片与土壤养分及化学计量特征研究[J]. 西南林业大学学报, 2017, 37(2): 95-102. DOI: 10.11929/j.issn.2095-1914.2017.02.016
引用本文: 王卓敏, 刘小川, 薛立, 邵怡若, 张越, 李银. 广州南沙园林植物叶片与土壤养分及化学计量特征研究[J]. 西南林业大学学报, 2017, 37(2): 95-102. DOI: 10.11929/j.issn.2095-1914.2017.02.016
Zhuomin Wang, Xiaochuan Liu, Li Xue, Yiruo Shao, Yue Zhang, Yin Li. Leaf Element and Soil Nutrient of Garden Plants and Their Stoichiometry in Nansha, Guangzhou[J]. Journal of Southwest Forestry University, 2017, 37(2): 95-102. DOI: 10.11929/j.issn.2095-1914.2017.02.016
Citation: Zhuomin Wang, Xiaochuan Liu, Li Xue, Yiruo Shao, Yue Zhang, Yin Li. Leaf Element and Soil Nutrient of Garden Plants and Their Stoichiometry in Nansha, Guangzhou[J]. Journal of Southwest Forestry University, 2017, 37(2): 95-102. DOI: 10.11929/j.issn.2095-1914.2017.02.016

广州南沙园林植物叶片与土壤养分及化学计量特征研究

Leaf Element and Soil Nutrient of Garden Plants and Their Stoichiometry in Nansha, Guangzhou

  • 摘要: 以广州南沙11种园林植物为对象,分析其叶片元素、土壤养分含量及其化学计量比。结果表明:植物叶片的C、N、P、K含量分别为363.92~491.49、9.65~33.53、1.36~2.90和11.25~24.74 g/kg;不同植物土壤pH为5.87~8.38,有机质含量为8.34~24.78 g/kg。不同植物的土壤全N、全P、全K、速效N、速效P和速效K含量存在显著差异。土壤总体质量居中,有机质含量中等,氮磷含量偏低,钾含量较高。植物叶片的C/N为12.28~44.42,C/P为152.17~314.95,N/P为3.56~13.02。将植物叶片的养分指标进行聚类分析, 可分为4类:第1类有龙血树,第2类有翠芦莉、鹅掌藤和绿朱蕉,第3类有银纹沿阶草、朱蕉、金叶假连翘、射干、水鬼蕉和花叶鸭脚木,第4类有大红花。叶片养分含量排序为第3类>第4类>第2类>第1类;通过聚类分析将不同植物的土壤养分分为4类,第1类有龙血树、银纹沿阶草和水鬼蕉,第2类有花叶鸭脚木、朱蕉和绿朱蕉,第3类有射干和翠芦莉,第4类有大红花、金叶假连翘和鹅掌藤。土壤肥力排序为第4类植物>第2类植物>第1类植物>第3类植物。

     

    Abstract: In this study, the element content and stoichiometry of leaves and soils of 11 garden plants was analyzed in Nansha of Guangzhou, Guangdong Province. Results showed that the contents of N, P and K in plant leaves ranged from 9.65 g/kg to 33.53 g/kg, 1.36 g/kg to 2.90 g/kg and 11.25 g/kg to 24.74 g/kg, respectively. Soil pH ranged from 5.87 to 8.38, soil organic matter ranged from 8.34 g/kg to 24.78 g/kg. Generally, there were significant differences in total N, total P, total K, available N, available P and available K among plant soils. Soil was characteristized with low N and P, medium soil organic matter level and high K. Leaf C/N, C/P and N/P ranged from 12.28-44.42, 152.17-314.95 and 3.56-13.02, respectively. The plants were divided into 4 categories using cluster analysis. Dracaena angustifolia belonged to the first kind, the second kind included Ruellia tuberosa, Schefflera arboricola and Cordyline fruticosa 'Green Leaves', the third kind included Ophiopogon intermedius 'Argenteo-marginatus', Cordyline fruticosa, Duranta repens 'Dwarf Yellow', Belamcanda chinensis, Hymenocallis littoralis and Schefflera odorata 'Variegata', Hibiscus rosa-sinensis belonged to the fourth kind. Generally, the leaf nutrient content decreased in the order of the third kind > the forth kind > the second kind > the first kind. The soil fertility was divided into 4 categories using cluster analysis. The first kind included D.angustifolia, O.intermedius 'Argenteo-marginatus' and H.littoralis, the second kind included S.odorata 'Variegata', C.fruticosa and C.fruticosa 'Green Leaves', the third kind included B.chinensis and R.tuberosa, and the fourth kind included H.rosa-sinensis, D.repens 'Dwarf Yellow' and S.arboricola. Generally, the soil fertility decreased in the order of the fourth kind > the second kind > the first kind > the third kind.

     

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