气候变化领域集成服务门户(CCPortal): The growth of Chinese fir is limited by nitrogen: Evidences from N:P ratio, N or P variability and NuRE based on a regional investigation

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DOI	10.1016/j.foreco.2020.117905
	The growth of Chinese fir is limited by nitrogen: Evidences from N:P ratio, N or P variability and NuRE based on a regional investigation
	Tong R.; Zhou B.; Jiang L.; Ge X.; Cao Y.
发表日期	2020
ISSN	0378-1127
卷号	460
英文摘要	Plant growth and vegetation productivity were generally limited either by nitrogen (N) or phosphorus (P) worldwide. To date, our current understandings on plant nutrient limitation are primarily derived from site-specific studies. By taking account into more factors, studies on regional or larger scales might resolve the divergences effectively arisen from regional differences, which would help provide new insights for plant nutrient limitation. In this study, we made an attempt to evidence the particular element that limiting the growth of Cunninghamia lanceolata (Chinese fir) based on a regional investigation. Firstly, we found that leaf N:P ratio (11.49) was significantly lower than 14, which suggested and evidenced that the growth of Chinese fir was limited by N. Next, leaf N concentration was less affected by the environmental variables, showing low variability. Leaf P concentration and N:P ratio were significantly affected by soil P concentration (SP), mean annual temperature (MAT) and altitude (ALT), and both of them showed high variability. Hence under same regional environmental changes, the level of the variability in leaf N or P concentration might affect the N or P supply for plant growth. Thirdly, the P resorption efficiency (PRE) was significantly higher than N resorption efficiency (NRE). Leaf N:P ratio decreased with the increasing PRE and \|NRE − PRE\|. Overall, our findings suggested that in subtropical China, low leaf N:P ratios, low N variability under, and high PRE were three major pieces of evidence that induce N- limitation for the growth of Chinese fir. © 2020 Elsevier B.V.
关键词	Efficiency Nitrogen Chinese fir Cunninghamia lanceolata Environmental factors Environmental variables Mean annual temperatures Nutrient resorptions Spatial variations Vegetation productivity Nutrients altitude biochemical composition concentration (composition)coniferous tree environmental factor leaf nutrient limitation phosphorus resorption spatial variation stoichiometry Chinese Concentration Efficiency Growth Nitrogen Nutrients Plants Variability China Cunninghamia lanceolata
语种	英语
来源机构	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133020
推荐引用方式 GB/T 7714	Tong R.,Zhou B.,Jiang L.,et al. The growth of Chinese fir is limited by nitrogen: Evidences from N:P ratio, N or P variability and NuRE based on a regional investigation[J]. Forest Ecology and Management,2020,460.
APA	Tong R.,Zhou B.,Jiang L.,Ge X.,&Cao Y..(2020).The growth of Chinese fir is limited by nitrogen: Evidences from N:P ratio, N or P variability and NuRE based on a regional investigation.,460.
MLA	Tong R.,et al."The growth of Chinese fir is limited by nitrogen: Evidences from N:P ratio, N or P variability and NuRE based on a regional investigation".460(2020).