Please use this identifier to cite or link to this item: https://rda.sliit.lk/handle/123456789/642
Title: Shoot regrowth and age-specific rhizome storage dynamics of Phragmites australis subjected to summer harvesting
Authors: Karunaratne, S
Asaeda, T
Yutani, K
Keywords: Biomass
Bulk density
Harvesting
Shoot regrowth
Stand morphology
Rhizome age
Rhizome storage
Translocation
Issue Date: 1-Apr-2004
Publisher: Elsevier
Citation: Cited by 45
Series/Report no.: Ecological Engineering;Vol 22 Issue 2 Pages 99-111
Abstract: Shoots of a monospecific wetland stand of Phragmites australis (Cav.) Trin. ex Steud. in Central Japan were harvested during two summer months in June (June-cut stand) and July (July-cut stand) and their effects on the stand morphology, above- and below-ground biomass and rhizome storage level (in terms of age-specific rhizome bulk density, ρrhiz), were investigated between themselves and to an uncut control stand. Both harvesting treatments increased leaf production and decreased shoot height, stem diameter, and the storage accumulation capacity of older rhizome age categories, the June-cut stand showing the lowest ρrhiz. Even though the year-end age-specific rhizome reserve level did not reach to that of uncut stand values, both treatments accelerated the post-harvest rhizome reserve accumulation rates (i.e. rate of ρrhiz increment) stimulated by shoot harvesting, especially in younger rhizomes and were negatively and linearly correlated with rhizome age. The study identified the seasonal changes of the rhizome reserve quality as essential for proper vegetation management. July or August is the appropriate harvesting time for plant stands used in phytoremediation and wastewater treatment, where a larger shoot-bound nutrient stock is removed, while preserving a healthy stand for the subsequent years. A harvest in May to June would be more effective in reducing the growth, and repeated June-cutting may likely weaken the stand beyond repair after several years.
URI: http://localhost:80/handle/123456789/642
ISSN: 0925-8574
Appears in Collections:Research Papers - Department of Civil Engineering
Research Papers - SLIIT Staff Publications

Files in This Item:
File Description SizeFormat 
1-s2.0-S0925857404000278-main.pdf
  Until 2050-12-31
183.51 kBAdobe PDFView/Open Request a copy


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.