Willow production as a function of radiation and temperature

✍ Scribed by Lars-Owe Nilsson; Henrik Eckersten

• Publisher: Elsevier Science
• Year: 1983
• Weight: 474 KB
• Volume: 30
• Category: Article
• ISSN: 0002-1571
• DOI: 10.1016/0002-1571(83)90040-7

✦ Synopsis

A s~mple model for growth of energy forests Is constructed, m wh,ch the dominant varmbles for growth are a,r temperature and radmtlon Processes ,ncluded m the model are photosynthesis, hght penetratmn m the canopy, resplratmn, allocat:on between above-and below-ground parts, and allocatmn between stems and leaves Other factors influencing growth are assumed to be close to optimal, e g, water-supply and nutr,tmn

The model is tested on willow, using actual meteorologmal data and seasonal fmld measurements of growth of yearly coppmed shoots m estabhshed stands Good agreement between simulated growth and fmld measurements was obtained for two s~tes w:th different chmates and plant densltms expressed in stools m -2

For one-year-old shoots m 1981, the model predmted a maximal LAI of ~ 7 and an above-ground bmmass productmn of ~ 14 tonnes ha-1 for the southern part of Sweden (latitudes 55--60°N), and LAI and productmn of ~ 4 and 8 5, respect,vely, for the north-eastern coastal area (latitudes 63--66°N)