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A system for microscale tensiometry and lysimetry

Title data

Göttlein, Axel ; Hell, Uwe ; Blasek, Roland:
A system for microscale tensiometry and lysimetry.
In: Geoderma. Vol. 69 (1996) Issue 1-2 . - pp. 147-156.
ISSN 1872-6259
DOI: https://doi.org/10.1016/0016-7061(95)00059-3

Abstract in another language

Growing roots, soil structure and soil horizons may induce microscale heterogeneities of soilsolution chemistry and soil water content. To investigate heterogeneities on the centimeter scale,micro ceramic cells suitable for high resolution tensiometry and lysimetry have been developed, theconstruction of which is described in detail.The cells consist of a ceramic capillary with 1 mm diameter, connected to 1 / 16" ( 1.59 mm) PEEKtubing. When combined with a pressure transducer the micro ceramic cells act as tensiometer, whencoupled to a vacuum collecting device they can be used as micro suction cups. Also a combinedtensio-lysimeter was constructed, but this application is limited to lower soil matrix potentials.The micro suction cups showed a quick response to changes in the outer solution (breakthroughvolume < 80 izl). In initial field studies, the pH of the soil solution of an acid forest soil was measuredin high spatial resolution using a matrix of micro-lysimeters.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER6778
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Ecology
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 22 Oct 2015 07:29
Last Modified: 22 Oct 2015 07:29
URI: https://eref.uni-bayreuth.de/id/eprint/20751