Soil nutrient leaching in response to simulated acid rain treatment

1987 ◽  
Vol 34 (2) ◽  
pp. 167-181 ◽  
Author(s):  
J. M. Kelly ◽  
R. C. Strickland
Keyword(s):  
Acid Rain ◽  
Soil Nutrient ◽  
Simulated Acid Rain ◽  
Nutrient Leaching

The effect of simulated acid rain on the nutrient status of subarctic woodland soils in eastern Canada

1987 ◽  
Vol 17 (5) ◽  
pp. 370-378 ◽  
Author(s):  
T. R. Moore
Keyword(s):  
Acid Rain ◽  
Soil Column ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Carbon Dioxide Flux ◽  
Simulated Acid Rain ◽  
Eastern Canada ◽  
Natural Rainfall ◽  
Lichen Woodland ◽  
Acid Nature

Treatment of small plots in a spruce–lichen woodland near Schefferville over two summers with simulated acid rain at pH 3, 4, and 5.5 and comparison with plots exposed to natural rainfall revealed increased leaching of nutrient cations, especially Mg2+, but only with the pH 3 treatment. Most changes in composition occurred as the solutions passed through the lichen mat with its associated litter and vascular plants. Experiments with laboratory soil columns showed that the subsoil horizons neutralize much of the acidity of the pH 3 treatments, presumably because of sulphate-fixation in the Fe-rich horizons. Based on measurements of field litter decomposition and laboratory carbon dioxide flux, the simulated acid treatments have little effect on organic matter decomposition. The treatments did not affect cation leaching from burnt plant tissues, but in the most acid treatment a larger proportion of the released nutrient cations were lost from the soil column. Laboratory experiments did not detect significant changes in mineralization rates, but there were increased leaching losses of NH4+-N with the pH 3 treatment. Because of the acid nature of the soils (soil pH 4.0), there appear to be few significant changes in soil nutrient status associated with acid rain, but this conclusion must be interpreted with caution because of the relatively short duration of the experiments and the harsh climatic and edaphic environment in which subarctic plants grow.

Simulated Acid Rain Accelerates Litter Decomposition and Enhances the Allelopathic Potential of the Invasive PlantWedelia trilobata(Creeping Daisy)

Weed Science ◽  
2012 ◽  
Vol 60 (3) ◽  
pp. 462-467 ◽  
Author(s):  
Rui Long Wang ◽  
Christian Staehelin ◽  
Franck E. Dayan ◽  
Yuan Yuan Song ◽  
Yi Juan Su ◽  
...  
Keyword(s):  
Acid Rain ◽  
Litter Decomposition ◽  
Southern China ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Simulated Acid Rain ◽  
Allelopathic Potential ◽  
Nutrient Contents ◽  
The Impact ◽  
Surrounding Soil

Invasive species and acid rain cause global environmental problems. Creeping daisy, an invasive exotic allelopathic weed, has caused great damage in southern China, where acid rain is prevalent. The impact of the acidity of simulated acid rain (SAR) on soil nutrients, the decomposition of creeping daisy litter, and on the allelopathic potential of the surrounding soils was investigated. Litter was treated with SAR at different acidity (pH 2.5, 4.0, 5.6) or with water (pH 7.0) as a control. After 70 d, the remaining amount of creeping daisy litter, nutrient contents, and allelopathic potentials in the surrounding soil were determined. The litter decomposition was commensurate to the increase in the acidity of the SAR. Total C and N contents, NO3−-N and available P increased, levels of NH4+-N, the ratio of C/N and soil pH values decreased, water contents increased and then decreased, whereas available K did not significantly change in the soil surrounding the litters in response to the increase in the acidity of the SAR. Bioassays showed that SAR promoted the allelopathic activity in the soil surrounding the litter, as measured by seedling growth of turnip and radish. In conclusion, our results indicated that SAR influenced soil nutrient status, accelerated creeping daisy litter decomposition, and enhanced the allelopathic potential of its litter in the surrounding soil, suggesting that acid rain may enhance the invasiveness of creeping daisy plants.

Scattered CaSO4-crystallites on needle surfaces after simulated acid rain as an indicator of nutrient leaching

1990 ◽  
Vol 54 (1) ◽  
pp. 169-173 ◽  
Author(s):  
Satu Huttunen ◽  
Minna Turunen ◽  
Jaana Reinikainen
Keyword(s):  
Acid Rain ◽  
Simulated Acid Rain ◽  
Nutrient Leaching

Effect of Simulated Acid Rain on Gas Exchanges of Three Compositae Invasive Plants

2013 ◽  
Vol 48 (2) ◽  
pp. 160-167
Author(s):  
Song Liying ◽  
Ke Zhanhong ◽  
Sun Lanlan ◽  
Peng Changlian
Keyword(s):  
Acid Rain ◽  
Invasive Plants ◽  
Simulated Acid Rain ◽  
Gas Exchanges

Effect of simulated ‘acid rain’ on cation loss from leaves

Nature ◽  
1975 ◽  
Vol 255 (5506) ◽  
pp. 324-325 ◽  
Author(s):  
J. A. W. FAIRFAX ◽  
N. W. LEPP
Keyword(s):  
Acid Rain ◽  
Simulated Acid Rain
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