气候变化领域集成服务门户(CCPortal): Biochar application alleviates unbalanced nutrient uptake caused by N deposition in Torreya grandis trees and seedlings

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DOI	10.1016/j.foreco.2018.09.040
	Biochar application alleviates unbalanced nutrient uptake caused by N deposition in Torreya grandis trees and seedlings
	Zhang R.; Zhao Y.; Lin J.; Hu Y.; Hänninen H.; Wu J.
发表日期	2019
ISSN	0378-1127
起始页码	319
结束页码	326
卷号	432
英文摘要	Foliar nitrogen: phosphorus (N:P) ratio is a valuable indicator of nutrient limitation in forest ecosystems. The ratio is currently dramatically affected by the increasing anthropogenic N deposition in China. Biochar, a soil amendment, has profound benefits for improving soil N and P availability. However, little is known about N and P uptake and nutrient balance of plants growing on biochar-amended soils under N deposition. Here, we conducted a two-year N addition and biochar application factorial experiment with Torreya grandis trees and seedlings, and the responses of concentrations of foliar N and P and the foliar N:P ratio were evaluated. N addition alone increased foliar N concentration, but did not change foliar P concentration, and thus increased foliar N:P ratio. Biochar application alone increased concentrations of both foliar N and P but did not cause any change in the N:P ratio. Most importantly, when applying N and biochar together, the concentration of foliar P increased and the foliar N:P ratio decreased, relative to each N treatment alone. This novel result suggests that biochar application can serve as an effective forest management tool, which can not only enhance the availability of N and P nutrients, but also alleviate the imbalanced uptake of nutrients indicated by the high foliar N:P ratios under increasing N deposition. © 2018
英文关键词	Foliar stoichiometry; Forest management; N:P ratio; Nutrient balance; Phosphorus limitation
语种	英语
scopus关键词	Deposition; Ecosystems; Nutrients; Soils; Factorial experiment; Forest ecosystem; N:P ratio; Nutrient balance; Nutrient limitations; Nutrient uptake; P availabilities; Phosphorus limitation; Forestry; atmospheric deposition; biochar; coniferous tree; forest ecosystem; forest management; nitrogen; nutrient availability; nutrient limitation; nutrient uptake; phosphorus; seedling; soil amendment; stochasticity; Application; Bombax; Concentration; Deposition; Ecosystems; Forestry; Nutrients; Trees; China; Torreya grandis
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156380
作者单位	State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; NFGA Engineering Research Center for Torreya grandis ‘Merrillii’, Zhejiang A&F University, Hangzhou, 311300, China
推荐引用方式 GB/T 7714	Zhang R.,Zhao Y.,Lin J.,et al. Biochar application alleviates unbalanced nutrient uptake caused by N deposition in Torreya grandis trees and seedlings[J],2019,432.
APA	Zhang R.,Zhao Y.,Lin J.,Hu Y.,Hänninen H.,&Wu J..(2019).Biochar application alleviates unbalanced nutrient uptake caused by N deposition in Torreya grandis trees and seedlings.Forest Ecology and Management,432.
MLA	Zhang R.,et al."Biochar application alleviates unbalanced nutrient uptake caused by N deposition in Torreya grandis trees and seedlings".Forest Ecology and Management 432(2019).