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中国农学通报 ›› 2018, Vol. 34 ›› Issue (10): 95-100.doi: 10.11924/j.issn.1000-6850.casb17030147

所属专题: 资源与环境 农业生态

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

温带森林叶部生态化学计量学特征研究进展

刘瑜,王庆贵,邢亚娟   

  1. 黑龙江大学农业资源与环境学院,黑龙江大学农业资源与环境学院,黑龙江大学农业资源与环境学院;黑龙江省林业科学研究所
  • 收稿日期:2017-03-22 修回日期:2017-03-29 接受日期:2017-04-18 出版日期:2018-04-10 发布日期:2018-04-10
  • 通讯作者: 邢亚娟
  • 基金资助:
    国家自然科学基金项目“大兴安岭北方森林细根动态和形态特征对氮沉降的响应”(41575137),“大兴安岭北方森林生态系统对N沉降增 加的响应”(31370494),“小兴安岭阔叶红松林生态系统对N沉降增加的响应”(31170421),“气候变化背景下小兴安岭阔叶红松林土壤碳汇变化机理” (31070406);黑龙江省自然科学基金重点项目“黑龙江省寒温带针叶林生态系统碳循环对模拟N沉降的响应”(ZD201406);长白山科学研究院开放基 金项目“长白山阔叶红松林生态系统细根动态和形态特征对氮沉降的响应”(2016001);黑龙江省科研机构创新能力提升专项计划“抗寒速生用材树 种新种质创制及培育技术研究”(YC2014D005)。

Ecological Stoichiometry Characteristics of Temperate Forest Leaves: A Review

  • Received:2017-03-22 Revised:2017-03-29 Accepted:2017-04-18 Online:2018-04-10 Published:2018-04-10

摘要: 生态化学计量学中碳(C)、氮(N)、磷(P)等元素的比例与分配已经成为全球气候变化研究的热点,因C、N、P 是植物生长的必需元素,它们的供应限制着植物生长及微生物的功能。然而,目前人类活动已经大大改变了C、N、P循环,从而改变了养分运输的模式、数量和养分限制的程度,导致温带森林养分不足的状况发生了改变。笔者分析了国内外温带森林叶片及凋落物的C、N、P 含量、化学计量比特征、限制性元素及其与土壤养分之间的关系,并与热带及亚热带森林进行了对比,同时,将全球森林的叶部生态化学计量学特征进行了总结。此外,笔者还综述了部分影响植物叶片生态化学计量比的因素,为未来生态化学计量学研究提供参照。由文献数据得出建议,将植物新鲜叶片、离体叶片、土壤及微生物共同联系起来进行研究,并针对不同的树种,加强其生态因子各种不同参数(如凸度、垂直结构、演替、温度及降水量等)对生态化学计量学特征的影响研究。

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Abstract: The ratio and allocation of carbon (C), nitrogen (N), phosphorus (P) in ecological stoichiometry have become hot topics of global climate change research, because C, N, P are necessary elements of plant growth, their supply restrict the plants growth and the microorganisms function. However, at present, human activities have greatly changed the C, N and P cycle, which changes the nutrient transport model, quantity and the degree of nutrient limitation, resulting in the current situation of widespread nutrient deficiency of temperate forests has been changed. The authors analyzed the contents of C, N and P, ecological stoichiometric ratio, limiting elements and their relationships with soil nutrient, and compared with those of tropical and subtropical forests, meanwhile, the ecological chemometrics characteristics of the forest leaf were summarized. In addition, the authors also reviewed some factors affecting the stoichiometric ratio of plant leaves, which would provide reference for the future study of ecological stoichiometry. The advice by the literature data as follows: the relationship of plant fresh leaves, exotic leaves, soil and microbes must be studied together, and for the different trees species, strengthen the effects of different parameters of the ecological factors such as crown, vertical structure and succession, temperature and precipitation on the ecological chemometrics characteristics.

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