SHIFTING DOMINANCE WITHIN A MONTANE VEGETATION COMMUNITY - RESULTS OF A CLIMATE-WARMING EXPERIMENT

被引：369

作者：

HARTE, J ^{[1
]}

SHAW, R ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY, DEPT ENVIRONM SCI POLICY & MANAGEMENT, BERKELEY, CA 94720 USA

来源：

SCIENCE | 1995年 / 267卷 / 5199期

关键词：

D O I：

10.1126/science.267.5199.876

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

In experimentally heated plots that each span a soil moisture gradient in a Rocky Mountain meadow, aboveground biomass of Artemisia tridentata (a sagebrush) increased in the drier habitat and that of Pentaphylloides floribunda (a shrub cinquefoil) increased in the wetter habitat relative to control plots. In contrast, aboveground forb biomass decreased in the wet and dry habitats of the heated plots. These results, combined with evidence for enhanced sagebrush seedling establishment rates in the heated plots, suggest that the increased warming expected under an atmosphere with a concentration of carbon dioxide twice that of pre-industrial levels could change the dominant vegetation of a widespread meadow habitat.

引用

页码：876 / 880

页数：5

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