Physiological responses to fertilization recorded in tree rings: isotopic lessons from a long-term fertilization trial.

Autor:	Renée^Brooks, J.1 Brooks.ReneeJ@epa.gov, Coulombe, Rob2
Předmět:	*Plant fertilization *Tree growth *Basal area (Forestry) *Forest management *Nitrogen fertilizers *Fertilizers Stable isotopes Tree age determination Forest measurement
Zdroj:	Ecological Applications. Jun2009, Vol. 19 Issue 4, p1044-1060. 17p.
Abstrakt:	The article presents a study which examines the long-term physiological responses of tree ring growth patterns and stable isotopes to fertilization. The study utilized a controlled fertilization experiment which started in 1964 in Washington State with the application of three levels of nitrogen fertilizer. The study revealed an increase of the basal area increment (BAI) in the highest treatment to twofold and a significant increase of BAI was identified for 20 years. It also indicates that the stable isotopes in tree rings determine the physiological responses over the lifetime of the tree.
Databáze:	GreenFILE
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