scholarly journals Nitrogen saturation, soil acidification, and ecological effects in a subtropical pine forest on acid soil in southwest China

2015 ◽  
Vol 120 (11) ◽  
pp. 2457-2472 ◽  
Author(s):  
Yongmei Huang ◽  
Ronghua Kang ◽  
Jan Mulder ◽  
Ting Zhang ◽  
Lei Duan
Keyword(s):  
Soil Acidification ◽  
Southwest China ◽  
Nitrogen Saturation ◽  
Acid Soil ◽  
Pine Forest ◽  
Ecological Effects

Atmospheric S and N deposition relates to increasing riverine transport of S and N in southwest China: Implications for soil acidification

2016 ◽  
Vol 218 ◽  
pp. 1191-1199 ◽  
Author(s):  
Lei Duan ◽  
Xiao Chen ◽  
Xiaoxiao Ma ◽  
Bin Zhao ◽  
Thorjørn Larssen ◽  
...  
Keyword(s):  
Soil Acidification ◽  
Southwest China ◽  
N Deposition ◽  
Riverine Transport

Leaching of nutrient cations from the forest floor: effects of nitrogen saturation in two long-term manipulations

1999 ◽  
Vol 29 (5) ◽  
pp. 609-620 ◽  
Author(s):  
William S Currie ◽  
John D Aber ◽  
Charles T Driscoll
Keyword(s):  
Soil Solution ◽  
Forest Floor ◽  
Nitrogen Saturation ◽  
Pinus Resinosa ◽  
Pine Forest ◽  
Oak Forest ◽  
N Saturation ◽  
Harvard Forest ◽  
Negative Relationships

Nitrogen saturation results in greater mobility of nitrate, which in turn is often correlated with concentrations of nutrient cations in soil solution and streamwater. At the Harvard Forest, U.S.A., under long-term NH4NO3 inputs, a Pinus resinosa Ait. forest has exhibited signs of N saturation more rapidly than a mixed-Quercus forest. We test the hypothesis that increased nitrate leaching causes increased concentrations of nutrient cations in soil solution. Over 2 years (years 6 and 7 of treatment) we measured SO42-, NO3-, Cl-, Ca2+, K+, Mg2+, Na+, H+, and NH4+ in throughfall solution and in forest-floor (Oa) leachate. Concentrations of NO3- in forest-floor leachate increased with rates of N amendment and correlated positively with cation concentrations, with stronger overall correlations in the pine forest: r2 values were 0.51 (pine forest) and 0.39 (oak forest) for Ca2+, 0.45 (pine) and 0.16 (oak) for K+, and 0.62 (pine) and 0.50 (oak) for Mg2+. In summer and fall, the oak forest showed some negative relationships between nutrient cation leaching and rate of N amendment. These contrasts showed retention of cations and N to occur together in an N-limited system, whereas increased nitrate mobility occurred with increased cation losses in an N-saturated system.

Decreases in inorganic nitrogen inputs and effects on nitrogen saturation and soil acidification

2019 ◽  
Vol 25 (1) ◽  
pp. 31-40
Author(s):  
Mitsuhisa Baba ◽  
Masanori Okazaki ◽  
Kazuhide Matsuda ◽  
Emu Shima ◽  
Fuka Tachiyanagi ◽  
...  
Keyword(s):  
Soil Acidification ◽  
Nitrogen Saturation ◽  
Inorganic Nitrogen ◽  
Nitrogen Inputs

scholarly journals Interdisciplinary analysis of soil acidification hazard and its legacy effects in Lithuania

2010 ◽  
Vol 10 (7) ◽  
pp. 1477-1485 ◽  
Author(s):  
M. Eidukeviciene ◽  
J. Volungevicius ◽  
S. Marcinkonis ◽  
L. Tripolskaja ◽  
D. Karcauskiene ◽  
...  
Keyword(s):  
Soil Acidification ◽  
Soil Acidity ◽  
Acid Soil ◽  
Grid Method ◽  
Soil Reaction ◽  
Secondary Effects ◽  
Spatial Statistical Analysis ◽  
Three Stages ◽  
Reaction Patterns ◽  
Local Levels

Abstract. An analysis of factors influencing effective soil acidification management is reported. This analysis was conducted simultaneously at both national and local levels. These investigations were accomplished in three stages: (i) validation of acid soil spatial patterns using systems analysis and geoinformation methods; (ii) spatial statistical analysis of soil pH diversity using a statistical grid method; and (iii) development of the concept of soil acidity management. Results indicate the national spatial distribution of topsoil reaction is a natural and stable phenomenon related to Quaternary sub-surface deposits. However, secondary effects of topsoil liming are evident in both spatial and temporal soil reaction patterns.

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