广州南沙园林植物叶片与土壤养分及化学计量特征研究

发布时间：2018-04-17 04:29

本文选题：园林植物 + 叶片　；参考：《西南林业大学学报(自然科学)》2017年02期

【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p H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]:The leaf elements, soil nutrient content and stoichiometric ratio of 11 garden plants in Nansha, Guangzhou, were analyzed.The results showed that the contents of C ~ (+) N ~ (+) P ~ (+) K in plant leaves were 363.92 ~ 491.49 ~ (9.65) ~ (33.53) ~ (3.36) ~ (2.90) and 11.25 ~ (24.74) g 路kg ~ (-1) 路kg ~ (-1), respectively, and the soil pH and organic matter content in different plant soils were 5.87 ~ 8.38 and 8.34 ~ 24.78 g 路kg ~ (-1), respectively.The contents of total N, total P, total K, available N, available P and available K of different plants were significantly different.The total quality of soil was in the middle, the content of organic matter was medium, the content of nitrogen and phosphorus was low, and the content of potassium was higher.The C / N ratio of plant leaves was 12.28 ~ 44.42% C / P = 152.17 ~ (314.95) N / P = 3.56 ~ (13. 02).The nutrient index of plant leaves can be classified into 4 categories: the first type has dragon blood tree, the second category has Cuili, the second kind has Cuoli, the goose palm vine and the green canna, the third kind has the agarum striatum, the Zhu banana, the golden leaf false forsythia, the shoot dry, the third kind has the agaric stripe, the Zhu banana, the golden leaf false forsythia, shoots dry,Canna aquatica and Artemisia lucifera, class 4 having large red flowers.The soil nutrients of different plants were classified into 4 groups by cluster analysis.Zhujiao and green Zhujiao, the third category has the shoot stem and the Cuiluli, the fourth kind has the big safflower, the golden leaf false forsythia and the goose palm vines.The order of soil fertility is the fourth plant, the second plant, the first plant, the third plant.
【作者单位】：华南农业大学林学与风景园林学院;广州普邦园林股份有限公司;
【基金】：广州市科技项目(2014SY000010)资助
【分类号】：S688;S158

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