DOI: 10.1007/s10533-013-9918-1
Scopus记录号: 2-s2.0-84896324621
论文题名: Synergistic soil response to nitrogen plus phosphorus fertilization in hardwood forests
作者: Fisk M.C. ; Ratliff T.J. ; Goswami S. ; Yanai R.D.
刊名: Biogeochemistry
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 118, 期: 2018-01-03 起始页码: 195
结束页码: 204
语种: 英语
英文关键词: Co-limitation
; Fertilization
; Nitrogen
; Northern hardwood forest
; Nutrient availability
; Phosphorus
Scopus关键词: agroforestry
; disturbance
; ecosystem response
; fertilizer application
; forest ecosystem
; forestry production
; mineralization
; nitrogen
; nutrient availability
; nutrient cycling
; phosphorus
; soil type
英文摘要: Plant and microbial processes exert control on the stoichiometry of available nutrients, potentially influencing forest ecosystem responses to nitrogen enrichment and other perturbations that alter resource availability. We tested whether an excess of one nutrient influenced the available pool of another, to learn the net outcome of various feedbacks on mineralization and uptake processes. We examined nitrogen and phosphorus availability (assayed with buried ion-exchange resin strips) in the first year of fertilizing northern hardwood forests with 30 kg/ha N, 10 kg/ha P, or N and P together. Fertilizing with a single nutrient raised the availability of the added nutrient and had no detectable effect on availability of the other nutrient. However, resin-available N was raised substantially more by adding N+P than it was by adding N alone. This effect of N+P must be the result of either reduced biotic uptake of N or increased mineralization of N, and suggests that N loss following forest disturbances will be enhanced in cases where the availability of both N and P are increased. That P interacts with N to enhance N availability, by whatever mechanism, could help explain observations of N and P co-limitation in ecosystems and calls attention to the need to carefully elucidate mechanisms underlying co-limitation of forest productivity. © 2013 Springer Science+Business Media Dordrecht. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83617
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Department of Biology, Miami University, Oxford, OH, 45056, United States; Department of Forest and Natural Resource Management, SUNY College of Environmental Science and Forestry, Syracuse, NY, 13210, United States
Recommended Citation:
Fisk M.C.,Ratliff T.J.,Goswami S.,et al. Synergistic soil response to nitrogen plus phosphorus fertilization in hardwood forests[J]. Biogeochemistry,2014-01-01,118(2018-01-03)