北方农业学报 ›› 2019, Vol. 47 ›› Issue (2): 59-65.doi: 10.3969/j.issn.2096-1197.2019.02.10

• 著者文摘 • 上一篇    下一篇

不同养分添加对草地群落优势植物叶片化学计量特征的影响

金月[1,2];梁存柱[2];崔利剑[1]   

  1. [1]呼伦贝尔生态产业技术研究院,内蒙古海拉尔021008;[2]内蒙古大学,内蒙古呼和浩特010020
  • 收稿日期:2019-03-03 出版日期:2019-02-19 发布日期:2019-08-19
  • 作者简介:金月(1988—),女,农艺师,硕士,主要从事生态农业的研究工作;通讯作者:梁存柱(1964-),男,教授,博士,博士生导师,主要从事植被生态学的研究工作。

Effects of different nutrient additions on the stoichiometric characteristics of leaves of dominant plants in grassland communities

JIN Yue[1,2];LIANG Cunzhu[2];CUI Lijian[1]   

  1. [1]Hulunbeier Ecological Industry Technology Research Institute,Hailar 021008,China;[2]Inner Mongolia University,Hohhot 010020,China
  • Received:2019-03-03 Online:2019-02-19 Published:2019-08-19

摘要: 为了解不同养分添加对草地群落的影响,通过人工添加氮肥、磷肥、钾肥模拟试验,研究不同施肥水平下植物叶片碳(C)、氮(N)、磷(P)元素含量及植物C∶N、C∶P、N∶P、C∶N∶P化学计量比的变化特征。结果表明:不同养分添加后,裂叶蒿和展枝唐松草双子叶植物较羊草、贝加尔针茅、日阴菅单子叶植物能更好地吸收肥料中的养分,双子叶植物比单子叶植物具有较高的C、N、P的储存能力。

关键词: 施肥;草地群落;化学计量比

Abstract: In order to understand the effects of different nutrient additions on the grassland community,simulated experiments of artificial addition of nitrogen,phosphate and potassium fertilizers were conducted to study the changes in element contents of carbon (C),nitrogen (N) and phosphorus (P) in plant leaves and the stoichiometric ratios of plant C∶N,C∶P,N∶P and C∶N∶P under different fertilization levels.The results showed that the dicotyledonous plants Artemisia laciniata and Thalictrum squarrosum could better absorb the nutrients in fertilizer than monocotyledonous Leymus chinensis,Stipa baicalensis and Carex pediformis,and the dicotyledonous plants had higher storage.

Key words: Fertilization;Grassland communities;Stoichiometric ratio

中图分类号: 

  • S812