Quaternary Buried Paleosols: A Critical Review

1976 ◽  
Vol 6 (2) ◽  
pp. 209-222 ◽  
Author(s):  
K.W.G. Valentine ◽  
J.B. Dalrymple
Keyword(s):  
Critical Review ◽  
Soil Characteristics ◽  
Quaternary Geology ◽  
Site Conditions ◽  
Layered Soils ◽  
Quaternary Stratigraphy ◽  
Soil Site

A review of work on buried paleosols in the disciplines of pedology, Quaternary geology, and archaeology is presented under the headings of (1) the problems of identification, (2) techniques of study, (3) buried paleosols and Quaternary stratigraphy, (4) archaeological stratigraphy and dating, (5) layered soils, and (6) past environment from buried paleosols. It is suggested that future pedological research of interest to Quaternary studies should concentrate on clarifying what is a soil as opposed to a weathered sediment, what processes and features are peculiar to pedogenesis as opposed to diagenesis, and what are the relationships between soil-site conditions and soil characteristics.

scholarly journals Plants on duty – phytotechnologies and phytoremediation at a glance

2015 ◽  
Vol 11 ◽  
pp. 23-29
Author(s):  
Zuzanna Oleksińska
Keyword(s):  
Habitat Restoration ◽  
Positive Impact ◽  
Biogeochemical Cycles ◽  
Soil Characteristics ◽  
Public Acceptance ◽  
Detailed Knowledge ◽  
Site Conditions ◽  
Low Costs

Phytotechnologies are plant based technologies of remediation and containment of pollutions. Many advantages of phytotechnologies such as control of water and biogeochemical cycles, positive impact on soil characteristics and lowering the risk of erosion, contaminant immobilization and destruction, habitat restoration, low costs of implementation, and high public acceptance, decide that in more and more cases it is a preferred and recommended method of rehabilitation. Vegetation selected to the particular site conditions and having required characteristics will shape other biotic communities. It is thus immensely important to gather detailed knowledge about all the elements and processes occurring at the place of interest, before employing adequate phytotechnology application.

scholarly journals The Quaternary Stratigraphy of a Section of the Sibowe River, South-West Swaziland

Afrika Focus ◽  
1991 ◽  
Vol 7 (3) ◽  
Author(s):  
Carole Ampe ◽  
Gunter Van Regenmortel
Keyword(s):  
Time Frame ◽  
Soil Characteristics ◽  
Before Present ◽  
Present Level ◽  
Complex Profile ◽  
River Incision ◽  
South West ◽  
Quaternary Stratigraphy ◽  
Buried Soil ◽  
Lateral Erosion

In south-west Swaziland a river terrace along the Sibowe river is formed by active river incision. A complex profile along this terrace showing alluvial and colluvial deposits reflecting changes in environmental conditions since at least the last 30 000 years is exposed. Examination of soil characteristics, relative position of the composite strata as well as river dynamics leads to a stratigraphie interpretation which has been fitted into a time frame. The basal gravel, alluvial in nature, dates from before the deposition of the Mphunga colluvium which has been deposited between 30 300 and 8490 before present. On the colluvium occurs an alluvium most probably deposited during the Early Holocene. The incision of the terrace to its present level has occurred during the Late Holocene.KEY WORDS: buried soil, colluvium, degradation, gravel deposits, lateral erosion, Swaziland 

scholarly journals Micropropagation of Leuce-poplar clones and its role in selection breeding

2016 ◽  
pp. 43-48
Author(s):  
Ildikó Balla ◽  
Zsolt Keserű ◽  
Borbála Antal ◽  
Károly Rédei
Keyword(s):  
Agricultural Research ◽  
Point Of View ◽  
Site Conditions ◽  
Early Evaluation ◽  
Research And Innovation ◽  
Poplar Clones ◽  
Soil Site ◽  
Fruit Growing ◽  
Selection Breeding

Leuce-poplars (mostly white poplar and its natural hybrid grey poplar) are native tree species trough Hungary. They are covering more than 4.0 per cent of the Hungarian forested area (77 000 ha). The white (grey) poplars play a significant role in the forestation under sandy soil site conditions as well as they are of importance from nature conservation point of view as well. Long-term selection breeding work is going on at the National Agricultural Research and Innovation Centre Forest Research Institute (NARIC FRI), involving selection of fast-growing Leuce-poplar clones under dry site conditions. Micropropagation technology is relatively quickly spreading in forestry. In vitro multiplication of trees is applied mainly in fruit growing in Hungary, in case of forestry it is used mainly for selection breeding. This paper presents a short overview on the micropropagation trials with different Leuce-poplar clones and the early evaluation of the seedlings growing of the micropropagated clones/varieties.

Soil-site relationships and soil characteristics associated with even-aged red maple (Acer rubrum) stands in Wisconsin and Michigan

1987 ◽  
Vol 21 (1-2) ◽  
pp. 75-89 ◽  
Author(s):  
James E. Johnson ◽  
Carl L. Haag ◽  
James G. Bockheim ◽  
Gayne G. Erdmann
Keyword(s):  
Acer Rubrum ◽  
Soil Characteristics ◽  
Red Maple ◽  
Soil Site
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