文章基本信息

标题：The relationship between productivity and tree-ring growth in boreal coniferous forests
本地全文：下载
作者：Guillermo Gea-Izquierdo ; Yves Bergeron ; Jian-Guo Huang 等
期刊名称：Boreal Environment Research
印刷版ISSN：1239-6095
出版年度：2014
卷号：19
期号：5-6
页码：363-378
语种：English
出版社：Finnish Limnological Society
摘要：Ecosystem productivity estimated with a model calibrated with eddy-covariance data was related to tree-ring growth of two different boreal conifers along a latitudinal gradient. The relationship between ecosystem productivity and growth changed with species and site. Greater photosynthesis in spring and summer increased annual anomalies of radial growth in both species, and the response of growth to productivity was earlier in warmer southern stands particularly for pine. Radial growth of jack pine increased in the long-term with higher productivity, whereas this relationship was more reduced in black spruce. This could express species-specific differences in carbon allocation strategies but likely it is a consequence of the limiting marginal soils where spruce is found in the south. Only treerings of jack pine at some sites showed certain potential as direct proxies for ecosystem productivity at the low and high-frequency responses.