NDLI: Maximum Annual Potential Yields of Salix miyabeana SX67 in Southern Quebec and Effects of Coppicing and Stool Age

Content Provider	Springer Nature Link
Author	Fontana, Mario Lafleur, Beit Labrecque, Michel Courchesne, François Bélanger, Nicolas
Copyright Year	2016
Abstract	Aboveground biomass yields of short rotation cultures (SRC) of willow can vary substantially depending on site quality. Among others, aboveground biomass yields depend on climatic conditions, soil properties, age of the SRC, and number of harvesting cycles. In this study, we investigated the effects of coppicing on growth variables (i.e., largest basal stem, height, and aboveground biomass) at ten SRC of Salix miyabeana SX67 established on various soils in southern Quebec. More than 1100 shrubs with stool ages varying between 1 and 15 years were measured. Strain analysis was carried out to calculate past annual aboveground productivities, and maximum annual yield potential was quantified at each site. Annual growth rates were highly variable and depended on site and coppicing history. To achieve optimal stool development and aboveground yields, two to three growing seasons following coppicing were necessary for sandy and clayey sites, respectively. The delays for reaching maximum yields were shortened when soil cation exchange capacity was dramatically low and were prolonged when soil was physically restricting stool development. This lag influenced the total yield of the first rotation and also modulated the magnitude of the increase of aboveground biomass that is generally observed in the second rotation. To increase yields in southern Quebec, our results suggest that it is preferable to extend the length of the first rotation instead of coppicing at the end of the first growing season after establishment.
Starting Page	1109
Ending Page	1125
Page Count	17
File Format	PDF
ISSN	19391234
Journal	BioEnergy Research
Volume Number	9
Issue Number	4
e-ISSN	19391242
Language	English
Publisher	Springer US
Publisher Date	2016-05-24
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Willow Short rotation culture Fast growth Soil texture Coppicing Root system age Plant Sciences Plant Genetics & Genomics Plant Breeding/Biotechnology Plant Ecology Wood Science & Technology
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment Agronomy and Crop Science

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