Drought tolerance and growth in populations of a wide-ranging tree species indicate climate change risks for the boreal north

© 2015 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 22(2016), 2 vom: 01. Feb., Seite 806-15
1. Verfasser: Montwé, David (VerfasserIn)
Weitere Verfasser: Isaac-Renton, Miriam, Hamann, Andreas, Spiecker, Heinrich
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Pinus contorta adaptation assisted migration climate change drought lodgepole pine provenance trial
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520 |a Choosing drought-tolerant planting stock in reforestation programs may help adapt forests to climate change. To inform such reforestation strategies, we test lodgepole pine (Pinus contorta Doug. ex Loud. var latifolia Englm.) population response to drought and infer potential benefits of a northward transfer of seeds from drier, southern environments. The objective is addressed by combining dendroecological growth analysis with long-term genetic field trials. Over 500 trees originating from 23 populations across western North America were destructively sampled in three experimental sites in southern British Columbia, representing a climate warming scenario. Growth after 32 years from provenances transferred southward or northward over long distances was significantly lower than growth of local populations. All populations were affected by a severe natural drought event in 2002. The provenances from the most southern locations showed the highest drought tolerance but low productivity. Local provenances were productive and drought tolerant. Provenances from the boreal north showed lower productivity and less drought tolerance on southern test sites than all other sources, implying that maladaptation to drought may prevent boreal populations from taking full advantage of more favorable growing conditions under projected climate change 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Pinus contorta 
650 4 |a adaptation 
650 4 |a assisted migration 
650 4 |a climate change 
650 4 |a drought 
650 4 |a lodgepole pine 
650 4 |a provenance trial 
700 1 |a Isaac-Renton, Miriam  |e verfasserin  |4 aut 
700 1 |a Hamann, Andreas  |e verfasserin  |4 aut 
700 1 |a Spiecker, Heinrich  |e verfasserin  |4 aut 
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