Chemical characteristics of leachate from pulp and paper mill residuals used to reclaim a sandy soil

Catricala, Christina E.; Bowden, William B.; Smith, C. T.; McDowell, William H.

doi:10.1007/bf00300429

Cited by 12 publications

(6 citation statements)

References 27 publications

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“…Although there was a relatively high content of Ca in the wood ash used in the experiment, the mean concentration of available Ca showed no change under the treatment with 0.25 kg m −2 and a decrease under the treatment with 0.5 and 1.0 kg m −2 compared to untreated control. Many researchers have reported increases of Mg, K and Ca after wood ash fertilization (Naylor and Schmidt, 1989;Ulery et al, 1993;Bramryd and Fransman, 1995;Catricala et al, 1996;Kahl, et al, 1996;Eriksson, 1998), but availability of Ca from the soils treated with wood ash depends on the type of forest soils (Saarsalmi et al, 2001) and depth of sampling (Valeur et al, 2000), on the chemical character of ash (Someshwar, 1996) and the time after ash application (Kahl et al, 1996;Saarsalmi et al, 2001), etc. The decrease of the concentration of available Ca estimated by us in sandy soil with pH > 7 may have resulted from the reaction of carbonisation or formation of relatively stable compounds having a very low solubility (Steenari and Lindqvist, 1997;Steenari et al, 1998).…”

Section: Resultsmentioning

confidence: 97%

Effect of wood ash application on the biomass distribution and physiological state of Norway spruce seedlings on sandy soils

2004

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The effect of wood ash applied as a fertiliser (0.25, 0.5 and 1 kg m −2 ) to nutrient poor sandy soil on 4-year-old Norway spruce (Picea abies) growing in small-scale sample plots was studied. Analyses carried out with roots, stems, needles and shoots of different age showed that an increase in the pH level and K and Ca concentrations and a decrease in N and P concentrations in the soil was accompanied by a disbalance of nutrients in tree compartments. Stimulation of pigment synthesis in Norway spruce needles was observed, and no disbalances occurred in the pigment system (Chla/Chlb, TChl/Car) guaranteeing normal process of photosynthesis. Biomass responses to wood ash application depended on the age of needles and shoots, being only slightly notable in current year organs. Inhibition of height growth of seedlings, but stimulation of root biomass was established.

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Section: Resultsmentioning

confidence: 97%

Effect of wood ash application on the biomass distribution and physiological state of Norway spruce seedlings on sandy soils

2004

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“…El lodo suele presentar contenidos de sólidos variable entre 0,25 % y 12 %, dependiendo de las operaciones y procesos de tratamiento (Catricala et al, 1996). La estabilización de los lodos es el proceso por el cual disminuye la tasa de descomposición de la materia orgánica, dejando el material sin las condiciones necesarias de humedad y temperatura, evitando así una proliferación de microorganismos.…”

Section: Introductionunclassified

Aplicación De Lodos De Planta De Tratamiento De Celulosa: Efecto en Algunas Propiedades Físicas Y Químicas De Suelos Volcánicos

2007

R.C. Suelo Nutr. Veg.

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The sludge from cellulose treatment plant is rich in organic matter (MO) and can be used to improve the chemical and physical properties of the soil. The aim of this study was to evaluate the effect of the application of sludge from cellulose wastewater treatment plant on the physical and chemical properties of volcanic soils (series Gorbea and Collipulli). There was added sludge (0, 10, 20, 30 and 50 Mg ha-1) to the soils and were incubated for 75 days at 22 ± 2ºC. At 15 and 75 days the content of organic matter (MO), available nitrogen (N), pH, extractable Al, field capacity, bulk density and aggregate stability was determinated. The application of sludge improved significantly (p ≤ 0.05) the levels of nitrogen and organic matter in both soils, as well as the pH, with the consistent decrease of Al level. On the other hand, the different doses of sludge did not improve significantly the physical properties of the soils, with the exception of the stability of the aggregates in the soil series Gorbea. The minor effect in the physical properties could happen due to the fact that the period of incubation (75 days) was not sufficient to provoke significant changes in the physical properties of the soils.

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“…ferences are more likely to be identified, although som e differences may be insignificant (Catricala et al, 1996). A conservative approach is favored here because EM Fs influenced the reproductive success and other physiological functions of these kestrels Fernie et al, in press).…”

Section: Electr O M Agnetic Fie Lds and Bird Behavio R 599mentioning

confidence: 95%

“…Following Catricala et al (1996), p < .10 was selected as significant to favor a Type I error (reject H 0 when it is true). Truly significant dif-…”

Section: Captive Kestrelsmentioning

confidence: 99%

Behavior of Free-Ranging and Captive American Kestrels Under Electromagnetic Fields

Fernie

Léonard²,

Bird³

2000

Journal of Toxicology and Environmental Health, Part A

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Wild birds, particularly raptors, commonly use electrical transmission structures for nesting, perching, hunting, and roosting. Consequently, birds are exposed to electromagnetic fields (EMFs). The amount of time that wild reproducing American kestrels (Falco sparverius) were exposed to EMFs was determined, and the effects of EMFs on the behavior of captive reproducing kestrels were examined. Wild kestrels were exposed to EMFs for 25% to 75% of the observed time. On a 24-h basis, estimated EMF exposure of wild kestrels ranged from 71% during courtship, to 90% during incubation, similar to that experienced by captive kestrels (88% of a 24-h period). Additionally, captive kestrels were exposed to EMF levels experienced by wild kestrels nesting under 735-kV power lines. Captive EMF females were more active, more alert, and perched on the pen roof more frequently than control females during courtship. EMF females preened and rested less often during brood rearing. EMF male kestrels were more active than control males during courtship, and more alert during incubation. Increased activity of kestrels during courtship may be linked to changes in corticosterone, but likely not melatonin. Observed behavioral changes were unlikely to directly result in the better growth of nestlings and fledging success, or poorer hatching success, of the EMF group, as previously reported. Behavioral changes of captive EMF kestrels may be observed in wild kestrels.

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Chemical characteristics of leachate from pulp and paper mill residuals used to reclaim a sandy soil

Cited by 12 publications

References 27 publications

Effect of wood ash application on the biomass distribution and physiological state of Norway spruce seedlings on sandy soils

Effect of wood ash application on the biomass distribution and physiological state of Norway spruce seedlings on sandy soils

Aplicación De Lodos De Planta De Tratamiento De Celulosa: Efecto en Algunas Propiedades Físicas Y Químicas De Suelos Volcánicos

Behavior of Free-Ranging and Captive American Kestrels Under Electromagnetic Fields

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