Effect of nitrogen levels on photosynthetic parameters, morphological and chemical characters of saplings and trees in a temperate forest

doi:10.1007/s11676-017-0547-8

	Effect of nitrogen levels on photosynthetic parameters, morphological and chemical characters of saplings and trees in a temperate forest
	Sun, Jinwei 1; Yao, Fuqi 1; Wu, Jiabing 2; Zhang, Pingcang 1; Xu, Wensheng 1
刊名	JOURNAL OF FORESTRY RESEARCH
	2018-11-01
卷号	29 期号:6 页码:1481-1488
关键词	Physiology parameters Added nitrogen Saplings Trees Deciduous broadleaved species
ISSN号	1007-662X
DOI	10.1007/s11676-017-0547-8
英文摘要	Exploring the response differences of leaf physiology parameters to enhanced nitrogen deposition between saplings and trees is vital for predicting the variations of terrestrial ecosystem structure and function under future global climate change. In this study, the ecophysiological parameters of saplings and trees of Fraxinus mandshurica Rupr. were measured at different levels of nitrogen addition in a temperate forest. The results show that ecophysiological parameters maximum net photosynthetic rate (P-max), apparent quantum efficiency (alpha), dark respiration (R-d), light saturation point (L-sp), photosynthetic nitrogen use efficiency (PNUE), specific leaf area (SLA) and stomatal conductance under saturated light intensity (G(smax)) were higher in saplings than in trees. These physiological parameters and not N-leaf (leaf nitrogen content) led to relatively lower P-max and R-d in trees. For both saplings and trees, low and median nitrogen addition (23 and 46 kg ha(-1)a(-1)) resulted in significant increases in P-max, R-d, L-sp, Chl, PNUE, SLA and G(smax). These parameters tended to decline under high additions of nitrogen (69 kg ha(-1)a(-1)), whereas N-leaf was always enhanced with increasing nitrogen. Variations in P-max and R-d with increasing nitrogen were attributed to variations in the strongly related parameters of, L-sp, Chl, PNUE, SLA and G(smax). Overall, the response sensitivity of physiological parameters to enhanced nitrogen levels was lower in trees compared with saplings.
资助项目	National Key Research and Development Program of China[2016YFC0400206-04] ; National Key Research and Development Program of China[2017YFC0505304] ; National Natural Science Foundation of China[51309016] ; Central Public-interest Scientific Institution Basal Research Fund[CKSF2016007/TB] ; Changjiang River Scientific Research Institute Innovation Team[CKSF2017064/NS]
WOS研究方向	Forestry
语种	英语
出版者	NORTHEAST FORESTRY UNIV
WOS记录号	WOS:000445386400004
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/123104]
专题	中国科学院沈阳应用生态研究所
通讯作者	Yao, Fuqi
作者单位	1.Changjiang River Sci Res Inst, Wuhan 430010, Hubei, Peoples R China 2.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Sun, Jinwei,Yao, Fuqi,Wu, Jiabing,et al. Effect of nitrogen levels on photosynthetic parameters, morphological and chemical characters of saplings and trees in a temperate forest[J]. JOURNAL OF FORESTRY RESEARCH,2018,29(6):1481-1488.
APA	Sun, Jinwei,Yao, Fuqi,Wu, Jiabing,Zhang, Pingcang,&Xu, Wensheng.(2018).Effect of nitrogen levels on photosynthetic parameters, morphological and chemical characters of saplings and trees in a temperate forest.JOURNAL OF FORESTRY RESEARCH,29(6),1481-1488.
MLA	Sun, Jinwei,et al."Effect of nitrogen levels on photosynthetic parameters, morphological and chemical characters of saplings and trees in a temperate forest".JOURNAL OF FORESTRY RESEARCH 29.6(2018):1481-1488.