Species richness and wood production:: a positive association in Mediterranean forests

被引:216
作者
Vila, Montserrat
Vayreda, Jordi
Comas, Lluis
Josep Ibanez, Joan
Mata, Teresa
Obon, Berta
机构
[1] Estac Biol Donana, CSIC, E-41013 Seville, Spain
[2] Univ Autonoma Barcelona, CREAF, E-08193 Barcelona, Spain
关键词
AET; ecosystem functioning; functional group; Mediterranean forests; mixed forests; permanent plot; plant yield; regional analysis; species diversity; tree wood production;
D O I
10.1111/j.1461-0248.2007.01016.x
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
A major debate in the study of biodiversity concerns its influence on ecosystem functioning. We compared whether wood production in forests was associated with tree functional group identity (i.e. deciduous, conifer or sclerophylous), tree species richness (1->= 5) and tree functional group richness (1-3) by comparing more than 5000 permanent plots distributed across Catalonia (NE Spain). Deciduous forests were more productive than coniferous and sclerophylous forests. Wood production increased with tree species richness. However, functional group richness increased wood production only in sclerophylous forests. When other forest structure, environmental variables and management practices were included in the analysis, tree functional group identity and species richness still remained significant, while functional species richness did not. Our survey indicates that across a regional scale, and across a broad range of environmental conditions, a significant positive association exists between local tree species richness and wood production at least in typical early successional Mediterranean-type forests.
引用
收藏
页码:241 / 250
页数:10
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