The article summarizes outcomes of a biomass study conducted in a young speckled alder plantation on a cold mountain site. At this location, the previously existing old forest was clear felled because of damage from air pollution, and present-day surface humus is in need of restoration. The intention of this study was to quantify the biomass and nutrients accumulated by alders and their components and assess whether the initial fertilization resulted in increased biomass production and nutrient accumulation in the biomass. Besides the control, two fertilized treatments were installed. In the surface treatment (SUT), the amendment was applied as a base dressing in small circles around trees. In the planting-hole treatment (PHT), the amendment was incorporated into soil inside the planting holes. Five growth seasons after planting and fertilization, six alders from each treatment were harvested including roots. Their biomass was quantified and analyzed for macroelements. The greatest pool of dry mass (DM) was branches in the control and stem wood in the fertilized treatments. The greatest pools of macroelements were leaves and branches. The most pronounced effects of fertilization were recorded in the DM and consequently in the absolute quantities of nutrients. The DM of an average tree in the control, SUT, and PHT was 85, 226, and 231 g, respectively. The absolute contents of nutrients per tree in the fertilized treatments showed the following increases, as compared with the control: (N) 2.5-2.6 times; (P) 1.6-2.4 times; (K) 1.8-2.1 times; and (Mg) 1.8-2.0 times, respectively. Speckled alder responded positively to fertilization.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00267-014-0359-y | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Vegetation drives the structure of active microbial communities on an acidogenic mine tailings deposit.
PeerJ
October 2020
Centre SÈVE, Département de biologie, Faculté des Sciences, Université de Sherbrooke, Sherbrooke, Québec, Canada.
Article Synopsis
- Plant-microbe associations are crucial for plant survival and growth, especially in challenging environments, and their dynamics are significantly influenced by factors like soil conditions and plant species.
- A study was conducted on the microbial communities in the rhizosphere of paper birch, speckled alder, and spruce in a long-undisturbed acidogenic mine tailings deposit, highlighting how vegetation density affects the variety of bacterial and fungal communities.
- The findings revealed that barren areas with no vegetation had distinct bacterial communities compared to vegetated areas, while fungal communities remained consistent across different vegetation densities, with specific genera showing varied abundance based on plant type.
The clinical significance of antinuclear antibodies and specific autoantibodies in juvenile and adult systemic lupus erythematosus patients.
Asian Pac J Allergy Immunol
December 2021
Center of Excellence in Immunology and Immune-mediated Diseases, Department of Microbiology.
Background: Juvenile systemic lupus erythematosus (JSLE) and adult SLE (ASLE) patients present with different clinical manifestations, but it is unknown if there are differences in their antinuclear autoantibody (ANA) profiles or if staining patterns are associated with specific autoantibodies and clinical manifestations.
Objective: To determine whether distinct types and numbers of ANA-staining patterns are associated with specific autoantibodies and clinical manifestations in JSLE and ASLE patients.
Methods: A retrospective study was performed in Thai children (n = 146) and adults (n = 180) diagnosed with SLE using the Systemic Lupus International Collaborating Clinics classification criteria.
Anti-mycobacterial triterpenes from the Canadian medicinal plant Alnus incana.
J Ethnopharmacol
May 2015
Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada E2L 4L5; Department of Chemistry, University of New Brunswick, Saint John, New Brunswick, Canada E2L 4L5. Electronic address:
Ethnopharmacological Relevance: Alnus incana, commonly known as the gray or speckled alder, is a medicinal plant used by some Canadian First Nations to treat symptoms associated with tuberculosis. The aim of this study was to assess the anti-mycobacterial activity of an Alnus incana bark extract and to identify the active constituents of the extract.
Materials And Methods: Methanolic extracts of the bark of A.
Biomass of speckled alder on an air-polluted mountain site and its response to fertilization.
Environ Manage
December 2014
Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 21, Praha 6 - Suchdol, Czech Republic,
The article summarizes outcomes of a biomass study conducted in a young speckled alder plantation on a cold mountain site. At this location, the previously existing old forest was clear felled because of damage from air pollution, and present-day surface humus is in need of restoration. The intention of this study was to quantify the biomass and nutrients accumulated by alders and their components and assess whether the initial fertilization resulted in increased biomass production and nutrient accumulation in the biomass.
View Article and Find Full Text PDFThe β-richness of two detritivore caddisflies affects fine organic matter export.
Oecologia
August 2013
Smithsonian Environmental Research Center, Edgewater, MD 21037, USA.
We used stream networks as a model system to test whether the ecosystem function, upstream production, and export of fine organic particles, an important subsidy to downstream habitats, would vary between two stream networks with identical detritivore species but different spatial distributions (i.e. high or low β-richness).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!