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中国农学通报 ›› 2017, Vol. 33 ›› Issue (29): 42-48.doi: 10.11924/j.issn.1000-6850.casb16110061

• 林学 园艺 园林 • 上一篇    下一篇

氮沉降对植物生长的影响研究进展

毛晋花1,邢亚娟1,马宏宇2,王庆贵1   

  1. (1黑龙江大学农业资源与环境学院,哈尔滨 150080;2长白山科学研究院,吉林二道白河 133613)
  • 收稿日期:2016-11-14 修回日期:2017-09-22 接受日期:2016-12-23 出版日期:2017-10-24 发布日期:2017-10-24
  • 通讯作者: 毛晋花
  • 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)。

Research Progress of Nitrogen Deposition Effect on Plant Growth

Mao Jinhua1, Xing Yajuan1, Ma Hongyu2, Wang Qinggui1   

  1. (1College of Agricultural Resource and Environment, Heilongjiang University, Harbin 150080; 2Changbaishan Academy of Science, Erdaobaihe Jilin 133613)
  • Received:2016-11-14 Revised:2017-09-22 Accepted:2016-12-23 Online:2017-10-24 Published:2017-10-24

摘要: 为了探索全球氮沉降加剧背景下植物生长所受的影响,笔者归纳了森林植物不同生长指标对氮沉降响应的国内外文献数据。在既有研究成果的基础上,详细总结了氮沉降对植物地上部形态(株高、基径)、光合生理(光合色素含量、净光合速率)、可溶性糖含量、地上及地下生物量分配比例、根系形态结构(根长、根直径和根系生物量)以及叶片中氮:磷等指标的影响,并对上述变化做了合理的分析。笔者指出氮沉降加剧在一定程度上对植物的各生长指标都有明显的促进作用,但当氮沉降很严重时,植物的生长就会受到限制。笔者发现目前关于氮沉降对植物生长影响的试验中,很多都是短期模拟试验,而且大多数试验都是有关现象的研究而非原理的探索。笔者认为在今后的研究中应该将模拟时间进一步延长,并对造成响应变化的机理进行探索,以期更好的为进一步研究氮沉降增加对森林植物生长状况的影响提供参考依据。

关键词: 标准化降水指数(SPI), 标准化降水指数(SPI), 干旱, 西藏

Abstract: In order to explore the impact of plant growth under the background of increasing global nitrogen (N) deposition, the author summarized the literature data of different growth indices of forest plant to N deposition in this paper. On the basis of previous research results, the author detailedly summarized the effects of N deposition on the plant morphology above the ground (plant height, the stem base diameter), Photosynthetic physiology (content of photosynthetic pigments, net photosynthetic rate), soluble sugar content, biomass allocation proportion between aboveground and underground, root morphology structure (length, diameter and biomass of root system) and stoichiometric ratio between N and P in the leaf, then we made a reasonable analysis about the above changes. It is pointed out that the increase of N deposition obviously promote every plant growth index to some extent, however, the growth of plants will be restrained when the N deposition was pretty serious. The author found that many current N deposition simulation experiments were short-term and most of them paid more attention to the study of phenomena rather than the mechanism. It is suggested that the duration of simulation experiments should be further extended and the mechanism of changes should be explored in order to provide a great reference for further study on the effect of N deposition on the growth of forest plant.

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