Die Adsorption der Phosphorsäure im Boden

Laatsch, W.

doi:10.1007/bf01556421

Cited by 6 publications

(2 citation statements)

References 8 publications

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“…Similar schemes for changing soils and landscapes were common in Western Europe [82,89,100,101], but then the Blytt-Sernander scheme became the main one. At present, the concept of an arid "chernozem" thermal maximum of the Holocene is being developed mainly on the basis of paleopedological studies [81,90].…”

Section: Changes In the Bioclimatic Conditions In The Holocene And Th...mentioning

confidence: 99%

“…The paleosol method proved to be successful in the study of the analogous problem of the origin of Holocene Chernozems in Central Europe [78,89]. In this region, within the modern forest areas with forest soils, Chernozems and similar dark humus soils were found under the Bronze Age and Neolithic kurgans [70,78,83,86,87].…”

Section: Soil Analogus With the Shh Outside Russiamentioning

confidence: 99%

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Soils with the Second Humus Horizon, Paleochernozems, and the History of Pedogenesis at the Border between Forest and Steppe Areas

2022

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The genesis of soils with the second humus horizon (SHH)-the most striking relict feature in the profiles of soddy-podzolic (Retisols) and gray (forest) soils (Luvisols)-is discussed. The Middle Holocene radiocarbon age of the SHH, its dark color, and the discrepancy of its properties and the properties of modern humus horizons of forest soils have specified the main issues in the study of SHH: the character of climate changes and shifts of the boundaries of natural zones in the Holocene and the reflection of these changes in the evolution of the soil profiles. We consider the history of studies, systematization, geographic distribution, and modern properties of the SHH. On the basis of the analysis of Holocene paleosols, we try to characterize the prototype of the SHH, to estimate its age, and to trace stages of its development in the Holocene. We have also tried to find analogous soils with the SHH outside of Russia. According to the accepted hypothesis, SHHs are residual paleoclimatogenic formations. Other hypotheses consider them as buried horizons, a result of paleohydromorphism, etc. Dark humic substances of SHHs were formed in the first half of the Holocene and are characterized by extremely high stability. This allows them to survive in the aggressive environment of the eluvial horizons of Retisols and Luvisols. Under the influence of biochemical and mechanical (tree uprooting) factors, SHHs are strongly transformed, which complicates their study. At the same time, well-preserved Chernozems and darkcolored Phaeozems buried under kurgans and other earthy structures and sediments make it possible to establish the prototype of the SHH and to trace its degradation in the late Holocene. Within the East European Plain, the thickness and age of the SHH vary in agreement with the hypothesis of the residual paleoclimatogenic genesis of this horizon. The validity of the hypotheses of the buried nature and hydrogenic origin of the SHH is discussed. At present, interest in soils with the SHH in Russia has somewhat weakened. In Central Europe and North America, soils with the SHH have not been studied, but research into the problem of relict chernozems is being actively pursued. In our opinion, the combination of these two types of objects and, accordingly, the directions of research can lead to more definite conclusions about the origin and evolution of soils with the SHH.

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Section: Changes In the Bioclimatic Conditions In The Holocene And Th...mentioning

confidence: 99%

Section: Soil Analogus With the Shh Outside Russiamentioning

confidence: 99%

Soils with the Second Humus Horizon, Paleochernozems, and the History of Pedogenesis at the Border between Forest and Steppe Areas

2022

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Zur Kenntnis der Huminsäuren. XI. Mitteilung Die Beeinflussung der Keimung von Getreide durch Thymohydrochinon als Modellsubstanz von Vorstufen bzw. Abbauprodukten von Huminsäuren

Flaig

Saalbach

1955

Z. Pflanzenernaehr. Dueng. Bodenk.

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The availability of soil phosphate. I.—Examination of the soil solution with special reference to the fixation of phosphate

Yuen¹,

Pollard²

1951

J Sci Food Agric

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The effects of fertilizer treatments and of season on the constituents of the soil solution, with special reference t o phosphate, have been examined, using soils tested as part of a long-term fertilizer-experiment.The concentration of inorganic phosphate in the soil solution in phosphate-treated plots was higher than that of the control throughout the year, the increases ranging from 21.5 to 66.604. The effect of superphosphate did not increase during cropping ; the concentrations of inorganic phosphate in the soil solution were low in summer and varied very little through the year. Ammonium sulphate and lime reduced the inorganic-phosphate concentration. I n plots receiving dung the concentrations of inorganic phosphate were unusually high, the increases ranging from 120 to 635% in the o-%in. soil layer.

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Die Adsorption der Phosphorsäure im Boden

Cited by 6 publications

References 8 publications

Soils with the Second Humus Horizon, Paleochernozems, and the History of Pedogenesis at the Border between Forest and Steppe Areas

Soils with the Second Humus Horizon, Paleochernozems, and the History of Pedogenesis at the Border between Forest and Steppe Areas

Zur Kenntnis der Huminsäuren. XI. Mitteilung Die Beeinflussung der Keimung von Getreide durch Thymohydrochinon als Modellsubstanz von Vorstufen bzw. Abbauprodukten von Huminsäuren

The availability of soil phosphate. I.—Examination of the soil solution with special reference to the fixation of phosphate

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