Beitrag in einem Sammelband
Effects of root-induced biopores on pore space architecture investigated with industrial X-Ray computed tomography



Details zur Publikation
Autor(inn)en:
Uteau Puschmann, D.; Peth, S.; Pagenkemper, S.; Horn, R.
Herausgeber:
Anderson SH, Hopmans JW
Verlag:
American Society of Agronomy
Verlagsort / Veröffentlichungsort:
WI, USA
Publikationsjahr:
2013
Seitenbereich:
69-96
Buchtitel:
Soil-water-root processes: advances in tomography and imaging
Titel der Buchreihe:
{SSSA} Special Publication

Zusammenfassung, Abstract
Abstract Over the last decade, the application of X-ray computed tomography ({CT)} in soil science showed rapid improvement in terms of image quality and acquisition time. Its noninvasive nature in combination with sophisticated image analysis tools pro- vides excellent opportunities to study soil‒water‒root processes at various scales. In this chapter, we show examples, demonstrating the possibilities of X-ray {CT} analysis for a qualitative/visual and quantitative evaluation of root-induced struc- ture formation. Soil samples ranging in size from large monoliths (20-cm diameter, 70-cm height) to small cores (5.1-cm diameter, 4.4-cm height) were collected from a Haplic Luvisol (Hypereutic, Siltic) from loess of an experimental field trial with various preceding crops [Medicago sativa L. subsp. sativa (alfalfa), Cichorium intybus L. (chicory), and Festuca arundinacea Schreb. (fescue)]. Morphological and topologi- cal parameters, such as pore volume size distribution, biopore surface area, and properties of the network skeleton (path length, diameter, and tortuosity), were calculated and used to assess how root-induced biopores of the different preced- ing crops modify pore space architectures.


Autor(inn)en / Herausgeber(innen)

Zuletzt aktualisiert 2019-01-11 um 16:04