Contributions of Acid Deposition and Natural Processes to Cation Leaching from Forest Soils: A Review

Johnson, Dale W.; Miegroet, Helga Van; Cole, Dale W.; Richter, Daniel D.

doi:10.1080/00022470.1983.10465688

Cited by 37 publications

(7 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4), because of its weakly acidic nature. This is consistent with high NPG Car in soils at neutral pH reported by Johnson et al (1983), Van Breemen et al (1984) and Gower et al (1995). Although NPG Car associated with active root and microbial respiration has generally been recognized as a dominant acidifying process in tropical regions (Johnson, 1977;McDowell, 1998;Markewitz et al, 2004), NPG Car is considered to be a dominant process only in moderately acidic or neutral soils.…”

Section: Factors Controlling Proton Generation and Consumption In Soisupporting

confidence: 88%

“…Soil solution studies revealed that carbonic acid plays an important role in leaching loss of cations from soil profiles under tropical forests (Johnson, 1977;McDowell, 1998;Markewitz et al, 2004), and carbonic acid dissociation associated with active root and microbial respiration has generally been recognized as a dominant acidifying process of tropical soils (Johnson et al, 1983). Incongruent dissolution by carbonic acid results in the accumulation of Al and Fe oxides (ferralitization) in the Oxisol soils under tropical forests (Stevenson, 1982;Patel-Sorrentino et al, 2007).…”

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Acidification of tropical forest soils derived from serpentine and sedimentary rocks in East Kalimantan, Indonesia

et al. 2011

View full text Add to dashboard Cite

Section: Factors Controlling Proton Generation and Consumption In Soisupporting

confidence: 88%

Section: Introductionmentioning

confidence: 98%

Acidification of tropical forest soils derived from serpentine and sedimentary rocks in East Kalimantan, Indonesia

et al. 2011

View full text Add to dashboard Cite

“…However, where inputs exceed biotic uptake, several negative impacts on ecosystem processes are possible (Abrahamsen 1980;Cowling & Linthurst 1981;Johnson & Richter 1984). These include direct physiological impairment of sensitive plant species (Landolt 8z Keller 1985;Kozlowski & Constantinidou 1986a;1986b); alterations in microbial processes such as accelerated rates of nitrification and denitrification, reduced rates of N fixation, reduced rates of organic matter decomposition and N mineralization, reductions in microbial respiration and enzyme activities, and reduced levels of mycorrhizal infection (Killham et al 1983;Stroo & Alexander 1985Berg 1986;Bewley & Parkinson 1986;Klein & Alexander 1986;, and changes in soil chemical processes such as accelerated leaching of NO; and cations, acidification of upper soil horizons, and declines in nutrient availability and general fertility (Johnson et al 1983;Heute & McCall 1984;Johnson & Reuss 1984). Some of these impacts result from the confounding of excess N inputs with those of other ions (e.g., H+, SO;').…”

Section: Atmospheric Depositionmentioning

confidence: 98%

Sources, fates, and impacts of nitrogen inputs to terrestrial ecosystems: review and synthesis

et al. 1988

View full text Add to dashboard Cite

Abstract. The relative importance of nitrogen inputs from atmospheric deposition and biological fixation is reviewed in a number of diverse, non-agricultural terrestrial ecosystems. Bulk precipitation inputs of N (I-12kgN ha-' yr-') are the same order of magnitude as, or frequently larger than, the usual range of inputs from nonsymbiotic fixation (< 1 -5 kg N ha-' yr-I), especially in areas influenced by industrial activity. Bulk precipitation measurements may underestimate total atmospheric deposition by 3040% because they generally do not include all forms of wet and dry deposition. Symbiotic fixation generally ranges from z lo-160 kg N ha-' yr-' in ecosystems where N-fixing species are present during early successional stages, and may exceed the range under unusual conditions.Rates of both symbiotic and nonsymbiotic fixation appear to be greater during early successional stages of forest development, where they have major impacts on nitrogen dynamics and ecosystem productivity. Fates and impacts of these nitrogen inputs are important considerations that are inadequately understood. These input processes are highly variable in space and time, and few sites have adequate comparative information on both nitrogen deposition and fixation.The existing information on N inputs is deficient in several areas: -more intensive studies of total atmospheric deposition, especially of dry deposition, are needed over a wide range of ecosystems; -additional studies of symbiotic fixation are needed that carefully quantify variation over space and time, examine more factors regulating fixation, and focus upon the availability of N and its effects upon productivity and other nutrient cycling processes; -process-level studies of associative N-fixation should be conducted over a range of ecosystems to determine the universal importance of rhizosphere fixation; -further examination of the role of free-living fixation in wood decomposition and soil organic matter genesis is needed, with attention upon spatial and temporal variation; and -investigations of long-term biogeochemical impacts of these inputs must be integrated with process-level studies using modem modelling techniques.

show abstract

“…Such leaching processes in the soil seem to occur naturally (e.g. Johnson et al, 1983), so factor 1 seems not to be specific to the stream subject to diversion.…”

Section: Water Qualitymentioning

confidence: 99%

Effects of diversion on the chemistry of a stream in Japan

Kagawa

1992

Regul. Rivers: Res. Mgmt.

View full text Add to dashboard Cite

On the upper reaches of the Ishite River, Japan the stream water is diverted completely at about 3 km above the Ishitegawa Reservoir, except under flood conditions. The chemical composition of the regenerated streamflow 2.4 km downstream from the diversion was determined 70 times during two years (1986-7) to investigate the effects of the diversion on water chemistry. Factor analysis suggested that two main factors controlled the water chemistry. Factor 1 explained 45.7% of the total variance and was correlated positively with the concentrations of Ca2+, Mg2+, Na+, HCO; , SO:and CI-, which seemed to reflect the leaching of dominant ions from the catchment soil. The factor 1 score was correlated negatively with the ecological 'Ca-Mg index' (r2 = 0.912), a low value of which is necessary to avoid phosphorus enrichment by phytoplankton in the downstream reservoir. The diversion seemed to contribute to this purpose because the log flow-rate value was correlated positively with the index (r2 = 0.730). On the other hand, factor 2 explained 10.2% of the total variance and was correlated positively with NO; concentration and negatively with pH. Factor 2 was considered in relation to the partial pressure of dissolved CO, gas in the stream water and appeared to be a complex biological factor that reflected CO, production in the catchment soil and consumption in the stream, KEY WORDS Diverted stream Chemical composition Factor analysis Ca-Mg index 1988). The inflow of river water with a low Ca-Mg index [log(Ca/Mg) -0.5 log(Ca + Mg) using calcium and magnesium concentrations in mmol 1-I; Kagawa and Togashi, 19891 is necessary to avoid abundant phytoplankton growth because a high Ca-Mg index leads to high phytoplanktonic particulate phosphorus concentrations under continuous feeding of river waters low in phosphorus (Kagawa and Togashi, 1989;Kagawa, 1989;1990). This paper seeks to clarify the controlling factors of the chemistry of the diverted part of the Ishite River and the effects of diversion on this ecological water quality index. MATERIALS AND METHODS Study area and samplingThe study area is shown in Figure 1. A sampling station, S1, was set up 214 m above sea level on the main stream of the Ishite River, just above the Ishitegawa Reservoir. The symbol S1 relates to earlier investigations 0886 -9375/92/03029 1 -12% 1 1 .OO

show abstract

Contributions of Acid Deposition and Natural Processes to Cation Leaching from Forest Soils: A Review

Cited by 37 publications

References 11 publications

Acidification of tropical forest soils derived from serpentine and sedimentary rocks in East Kalimantan, Indonesia

Acidification of tropical forest soils derived from serpentine and sedimentary rocks in East Kalimantan, Indonesia

Sources, fates, and impacts of nitrogen inputs to terrestrial ecosystems: review and synthesis

Effects of diversion on the chemistry of a stream in Japan

Contact Info

Product

Resources

About