Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/16537
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Root distribution and nutrient status of mycorrhizal and non-mycorrhizal Pinus sylvestris L. seedlings growing in a sandy substrate with lignite fragments |
Author: | Baumann, K. Schneider, B. Marschner, P. Huttl, R. |
Citation: | Plant and Soil: international journal on plant-soil relationships, 2005; 276(1-2):347-357 |
Publisher: | Kluwer Academic Publ |
Issue Date: | 2005 |
ISSN: | 0032-079X 1573-5036 |
Statement of Responsibility: | K. Baumann, B.U. Schneider, P. Marschner and R.F. Hüttl |
Abstract: | Reclaimed mine soils of the Lusatian mining district are characterised by small-scale heterogeneous distribution of lignite fragments of varying size embedded in a matrix of Tertiary and Quaternary sandy material. Despite amelioration with basic fly ashes, ongoing pyrite oxidation and the subsequent acidification generate a high physical and chemical heterogeneity within the substrate, which could negatively affect root proliferation. We hypothesised that this limitation for the root system may be compensated for by intensive exploration of the porous lignite fragments by roots and/or mycorrhizal hyphae to access water and nutrients stored in these fragments. To test this hypothesis, we compared growth, shoot nutrient content, and root distribution of mycorrhizal and non-mycorrhizal Pinus sylvestris L. seedlings in lignite-containing and lignite-free sandy substrate. Rhizotrons used for this experiment were filled with a sandy matrix with 6–9 evenly distributed spots of lignite fragments. Treatments included different levels of water and nutrient availability. After 8 months of growth, root tip vitality as well as growth and shoot nutrient concentration of the plants was higher for treatments with lignite spots in the sandy substrate than for sandy substrate without such amendments. Compared to the non-mycorrhizal plants, the seedlings inoculated with Paxillus involutus (Batsch) Fr. had a higher root dry mass, an increased number of root tips and a higher root length. These results confirm our hypothesis that the lignite fragments are an important nutrient and water reservoir for plants in these mine soils and they indicate that mycorrhizal colonisation may allow an intensive exploration of porous lignite fragments by mycorrhizal hyphae. |
Keywords: | lignite Paxillus involutus Pinus sylvestris root distribution spatial heterogeneity |
Description: | The original publication can be found at www.springerlink.com |
DOI: | 10.1007/s11104-005-5300-y |
Published version: | http://www.springerlink.com/content/p235m75121574284/ |
Appears in Collections: | Aurora harvest 2 Earth and Environmental Sciences publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.