DOI: 10.1016/j.envpol.2020.114090
论文题名: Throughfall reduction diminished the enhancing effect of N addition on soil N leaching loss in an old, temperate forest
作者: Geng S. ; Chen Z. ; Ma S. ; Feng Y. ; Zhang L. ; Zhang J. ; Han S.
刊名: Environmental Pollution
ISSN: 2697491
出版年: 2020
卷: 261 语种: 英语
英文关键词: Global environmental change
; Korean pine
; N leaching
; Two-factor interaction
; Zero-tension pan lysimeter method
Scopus关键词: Budget control
; Deposition
; Ecosystems
; Leaching
; Lysimeters
; Nitrogen
; Soil surveys
; Soils
; Global environmental change
; Korean pine
; N-leaching
; Two-factor interaction
; Zero-tension pan lysimeter method
; Forestry
; carbon
; nitrogen
; organic nitrogen
; coniferous forest
; experiment
; fertilizer application
; global change
; leaching
; lysimeter
; soil nitrogen
; temperate forest
; throughfall
; Article
; controlled study
; drought
; leaching
; nitrogen deposition
; precipitation
; soil property
; soil treatment
; temperate deciduous forest
; throughfall reduction
; Pinus koraiensis
英文摘要: Soil nitrogen (N) leaching is recognized to have negative effects on the environment. There is a lack of studies on different simultaneously occurring drivers of environmental change, including changing rainfall and N deposition, on soil N leaching. In this study, a two factorial field experiment was conducted in a Korean pine forest with the following four treatments: 30% of throughfall reduction (TR), 50 kg N ha−1 yr−1 of N addition (N+), throughfall reduction plus N addition (TRN+) and natural forest (CK). The zero-tension pan lysimeter method was used to assess the response of soil N leaching loss to manipulated N addition and throughfall reduction. The results showed that the soil N leaching loss in natural forest was 5.0 ± 0.4 kg N ha−1yr−1, of which dissolved organic nitrogen (DON) accounted for 48%. Compared to natural forest, six years of N addition (NH4NO3, 50 kg N ha−1 year−1) significantly (P < 0.05) increased soil N leaching losses by 122%, especially in the form of NO3−; a 30% reduction in throughfall slightly decreased N leaching losses by 23%; in combination, N addition and throughfall reduction increased N leaching losses by 48%. There was a strong interaction between N addition and throughfall reduction, which decreased N leaching loss by approximately 2.5 kg N ha−1 yr−1. Our results indicated that drought would diminish the enhancing effect of N deposition on soil N leaching. These findings highlight the importance of incorporating both N deposition and precipitation and their impacts on soil N leaching into future N budget assessments of forest ecosystems under global environmental change. © 2020 Elsevier LtdA strong interaction was found between N addition and throughfall reduction in which throughfall reduction diminished the enhancing effect of N addition on soil N leaching. © 2020 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158109
Appears in Collections: 气候变化与战略
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作者单位: CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, 72 Wenhua Road, Shenyang, 110016, China; International Joint Research Laboratory for Global Change Ecology, School of Life Sciences, Henan University, Jinming Road, Kaifeng, 475004, China; The Key Laboratory of Clean Combustion for Electricity Generation and Heat-Supply Technology, College of Energy and Power, Shenyang Institute of Engineering, Shenyang, 110136, China
Recommended Citation:
Geng S.,Chen Z.,Ma S.,et al. Throughfall reduction diminished the enhancing effect of N addition on soil N leaching loss in an old, temperate forest[J]. Environmental Pollution,2020-01-01,261