Nutrient element and carbohydrate status of Norway spruce at Mt. Kleiner Feldberg in Taunus exposed to air pollution and soil acidification

Rothe, Gunter M.; Weil, HU; Geider, M.; Pfennig, P.; Wilhelmi, Vanessa; Maurer, W.

doi:10.1111/j.1439-0329.1988.tb00759.x

Cited by 16 publications

(2 citation statements)

References 14 publications

(11 reference statements)

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“…The results have been interpreted using the references by BoNNEAU (1988), ROTHE et al (1988) andFERRETTI et al (1991). Among the nutrients it is evident that there is a low level of Ca (average 0.072 %): in 83 % of the samples it is below the optimum level indicated for conifers as 0.10-0.f2 % (Fig.…”

Section: Chemical Analysesmentioning

confidence: 99%

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New type forest damage to mediterranean vegetation in Southern Sardinian forests (Italy)

Bussotti¹,

Ferretti²,

Cenni³

et al. 1991

European Journal of Forest Pathology

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Section: Chemical Analysesmentioning

confidence: 99%

“…The analytical data are shown in Table 3. The results have been interpreted using the references by BoNNEAU (1988), ROTHE et al (1988) andFERRETTI et al (1991). Bussotti, M. Ferretti, E. Cenni, R. Cellini, F Clauser, P. Crossoni and E. Barholani…”

Section: Chemical Analysesmentioning

confidence: 99%

New type forest damage to mediterranean vegetation in Southern Sardinian forests (Italy)

Bussotti¹,

Ferretti²,

Cenni³

et al. 1991

European Journal of Forest Pathology

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Determination of molecular mass, stokes' radius, frictional coefficient and isomer‐type of non‐denatured proteins by time‐dependent pore gradient gel electrophoresis

Rothe

1988

Electrophoresis

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Molecular mass, Stoke's radius, frictional coefficient and isomer-type of non-denatured proteins can be obtained by time-dependent gradient gel electrophoresis by evaluating the resulting data using a two-step mathematical procedure. Provided a histochemical staining procedure is available to locate the position of an enzyme in the gel, crude cell extracts can be used for estimating their molecular size properties. The computation of molecular properties of non-denatured proteins is demonstrated for isozymes of aspartate aminotransferase (EC 2.6.1.1), peroxidase (EC 1.11.1.42) and glucose-6-phosphate dehydrogenase (EC 1.1.1.49) from current-year needles of spruce. The resulting data as well as those which were calculated for esterase (EC 3.1.1.1), glutamate dehydrogenase (EC 1.4.1.4), isocitrate dehydrogenase (EC 1.4.1.42), and shikimate dehydrogenase (EC 1.1.1.25) are in accordance with those reported in the literature. The method described may be applied to various scientific areas such as genetics or environmental pollution. It could be shown here that current-year needles of injured spruce (damage class 3) contained two more peroxidase isozymes and one more glucose-6-phosphate dehydrogenase isozyme than those from non-injured trees. These differences may mark two genotypes of spruce of different susceptibilities towards present-day air and soil pollutants.

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A New Fertilization Strategy in Declining Forests

Evers¹,

Hüttl

1991

Management of Nutrition in Forests Under Stress

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A~stract.In central Europe and to some degree in North America, the so called "new type" forest d~ages occur over large areas. Various studies indicate the declines are more or less frequently associated with nutritional disturbances that have developed within rather short time periods. The most common disorder is a Mg deficiency that produces specific discoloration symptoms such as tip-yellowing in Norway spruce. But also K deficiencies and other disturbances exist in coniferous as well as in deciduous forests. Good correlations between the site specific substrate chemistry and the actual nutritional status of the trees and stands were found.To explain the sudden and widespread development of the forest declines adverse anthropogenic influences such as increased N and H + deposition, land use and forestry mismanagement as well as natural stresses ere discussed. Soil analyses also revealed a positive change of the chemical soil status when site and stand specific fertilizer applications were utilized in the appropriate amounts. However, under certain site and stand conditions risks and limitations exist that have to he evaluated when fertilization practices are discussed.To overcome or minimize these influences the treatments must be adapted to the site, and stand specific fertilization needs as indicated by soil and feller analysis, humus form, hydrologic parameter and atmospheric deposition rates.

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Nutrient element and carbohydrate status of Norway spruce at Mt. Kleiner Feldberg in Taunus exposed to air pollution and soil acidification

Cited by 16 publications

References 14 publications

New type forest damage to mediterranean vegetation in Southern Sardinian forests (Italy)

New type forest damage to mediterranean vegetation in Southern Sardinian forests (Italy)

Determination of molecular mass, stokes' radius, frictional coefficient and isomer‐type of non‐denatured proteins by time‐dependent pore gradient gel electrophoresis

A New Fertilization Strategy in Declining Forests

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