dc.identifier.uri |
http://dx.doi.org/10.15488/1165 |
|
dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/1189 |
|
dc.contributor.author |
Fleige, H.
|
|
dc.contributor.author |
Beck-Broichsitter, S.
|
|
dc.contributor.author |
Dörner, J.
|
|
dc.contributor.author |
Goebel, Marc-Oliver
|
|
dc.contributor.author |
Bachmann, Jörg
|
|
dc.contributor.author |
Horn, R.
|
|
dc.date.accessioned |
2017-02-24T08:49:28Z |
|
dc.date.available |
2017-02-24T08:49:28Z |
|
dc.date.issued |
2016 |
|
dc.identifier.citation |
Fleige, H.; Beck-Broichsitter, S.; Dörner, J.; Goebel, Marc-Oliver; Bachmann, Jörg et al.: Land use and soil development in Southern chile: Effects on physical properties. In: Journal of Soil Science and Plant Nutrition 16 (2016), Nr. 3, S. 818-831. DOI: https://doi.org/10.4067/S0718-95162016005000058 |
|
dc.description.abstract |
Different physical properties of volcanic ash soils were investigated along a transect of 120 km from the western slope of the Central Cordilleras (40°20’S, 72°06’W) to the eastern slope of the Costal Cordillera (39°39’S, 73°11’W) in southern Chile with respect to the degree of soil development (Arenosol versus Andosol stage; Arenosol: young volcanic ash soil, free of clay, tephric properties, Andosol: older volcanic soil, clayey). The Andosols show a higher total pore volume and a higher field capacity, especially due to an increase in fine pores, than the Arenosols. Furthermore, the precompression stress (Pc) as a parameter for the mechanical soil strength is higher for Andosols despite of a lower bulk density. A land use (cropland, meadow, forest) dependent variation of the investigated parameters was less distinct for Andosols. A reduction of macropores and saturated hydraulic conductivity (ks) due to agriculture could be determined in the field, but in general the values are still on a high level with ks-values >100 cm d-1. However, at higher stresses using an oedometer test the ks-values of the Andosols are highly negatively affected with values <10 cm d-1. Aggregation is of major importance for soil stability of Andosols, whereas a homogenization of soil structure will lead to a distinct decrease of Pc of approx. 50%. |
eng |
dc.description.sponsorship |
DFG/HO 911/45-1 |
|
dc.description.sponsorship |
DFG/BA 1359/12-1 |
|
dc.language.iso |
eng |
|
dc.publisher |
Valdivia : Sociedad Chilena de la Ciencia del Suelo |
|
dc.relation.ispartofseries |
Journal of Soil Science and Plant Nutrition 16 (2016), Nr. 3 |
|
dc.rights |
CC BY-NC 4.0 Unported |
|
dc.rights.uri |
https://creativecommons.org/licenses/by-nc/4.0/deed.en |
|
dc.subject |
Andosol |
eng |
dc.subject |
Arenosol |
eng |
dc.subject |
Hydraulic conductivity |
eng |
dc.subject |
Precompression stress |
eng |
dc.subject |
Stress strain behavior |
eng |
dc.subject.ddc |
630 | Landwirtschaft, Veterinärmedizin
|
ger |
dc.title |
Land use and soil development in Southern chile: Effects on physical properties |
|
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.issn |
0718-9516 |
|
dc.relation.doi |
https://doi.org/10.4067/S0718-95162016005000058 |
|
dc.bibliographicCitation.issue |
3 |
|
dc.bibliographicCitation.volume |
16 |
|
dc.bibliographicCitation.firstPage |
818 |
|
dc.bibliographicCitation.lastPage |
831 |
|
dc.description.version |
publishedVersion |
|
tib.accessRights |
frei zug�nglich |
|