DOI: 10.1016/j.atmosenv.2017.04.030
Scopus记录号: 2-s2.0-85018374946
论文题名: Deposition pattern and throughfall fluxes in secondary cool temperate forest, South Korea
作者: Kumar Gautam M ; , Lee K ; -S ; , Song B ; -Y
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 161 起始页码: 71
结束页码: 81
语种: 英语
英文关键词: Base cations
; Canopy exchange
; Cool temperate forests
; Dry deposition
; South Korea
; Throughfall fluxes
Scopus关键词: Acidification
; Atmospheric chemistry
; Calcium
; Forestry
; Fruits
; Leaching
; Meteorological problems
; Positive ions
; Rain
; Base cations
; Canopy exchanges
; Cool temperate forests
; Dry deposition
; South Korea
; Throughfall
; Deposition
; ammonia
; calcium
; magnesium ion
; nitrate
; nitrogen
; potassium
; rain
; sodium ion
; sulfur
; atmospheric deposition
; canopy exchange
; cation
; coniferous tree
; cooling
; deciduous tree
; dry deposition
; flux measurement
; mixed forest
; precipitation quality
; stand dynamics
; temperate forest
; throughfall
; acidification
; Article
; atmospheric deposition
; canopy
; chemical composition
; chestnut
; dry deposition
; leaching
; monoculture
; nonhuman
; pine
; precipitation
; priority journal
; Robinia pseudoacacia
; soil acidity
; South Korea
; summer
; temperate deciduous forest
; throughfall
; South Korea
; Castanea crenata
; Pinus densiflora
; Pinus resinosa
; Robinia pseudoacacia
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Chemistry and deposition fluxes in the rainfall and throughfall of red pine (Pinus densiflora), black locust (Robinia pseudoacacia), and chestnut (Castanea crenata) monocultures, and mixed red pine–black locust–chestnut stands were examined in a nutrient-limited cool temperate forest of central South Korea. Throughfall was enriched in both basic and acidic constituents relative to rainfall, suggesting that both dry deposition and canopy leaching are important sources of throughfall constituents. Net throughfall fluxes (NTFs) of cations and anions significantly differed among four different stands as well as seasonally. Red pine exhibited highest fluxes (TF and NTF) for Ca2+, black locust for K+, mixed stands for Mg2+, and chestnut for Na+. In contrast, NTF of SO4 2-, NO3 −, and NH4 +was highest in the red pine, intermediate in the chestnut and mixed stands, and lowest in the black locust. In general, canopy uptake of H+ and NH4 + for all stands was higher in summer than in winter. Dry deposition appears to play a major role in atmospheric deposition to this cool temperate forest, especially in summer. Dry deposition for both cations and anions displayed high spatial variability, even though stands were adjacent to one another and experienced identical atmospheric deposition loads. Canopy leaching of K+ (95–78% of NTF), Mg2+ (92–23% of NTF), and Ca2+ (91–12% of NTF) was highest for the black locust, lowest for chestnut, and intermediate for the red pine and mixed stands. The present study documented significant changes in throughfall chemistry and NTF among different forest stands, which presumably be related with the differences in the canopy characteristics and differences in their scavenging capacity for dry deposition and canopy exchange. Difference in the canopy retention of H+ and base cation leaching suggests that canopy exchange was mainly driven by weak acid excretion and lesser by H+ exchange reaction. Our results indicate that despite a high base cation deposition, a combination of higher input of acidifying constituents, low soil pH, and total acidic deposition approaching South Korean critical loads make regional forest vulnerable to acidification. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82447
Appears in Collections: 气候变化事实与影响
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作者单位: Division of Earth and Environmental Science, Korea Basic Science Institute (KBSI), Chungbuk, South Korea; Department of Natural Science, Baruch College, City University of New York, 55 Lexington Avenue, 24th St, New York, NY, United States
Recommended Citation:
Kumar Gautam M,, Lee K,-S,et al. Deposition pattern and throughfall fluxes in secondary cool temperate forest, South Korea[J]. Atmospheric Environment,2017-01-01,161