Response of Two Dominant Boreal Freshwater Wetland Plants to Manipulated Warming and Altered Precipitation
| 第一作者： |
邹元春 |
| 英文第一作者： |
Zou, Y. C. |
| 联系作者： |
吕宪国 |
| 英文联系作者： |
Lu, X. G. |
| 发表年度： |
2014 |
| 卷： |
9 |
| 摘要： |
This study characterized the morphological and photosynthetic responses of two wetland plant species when they were subject to 2-6 degrees C fluctuations in growth temperature and +/- 50% of precipitation, in order to predict the evolution of natural wetlands in Sanjiang Plain of North-eastern China. We investigated the morphological and photosynthetic responses of two dominant and competitive boreal freshwater wetland plants in Northeastern China to manipulation of warming (ambient, +2.0 degrees C, +4.0 degrees C, +6.0 degrees C) and altered precipitation (-50%, ambient, +50%) simultaneously by incubating the plants from seedling to senescence within climate-controlled environmental chambers. Post-harvest, secondary growth of C. angustifolia was observed to explore intergenerational effects. The results indicated that C. angustifolia demonstrated a greater acclimated capacity than G. spiculosa to respond to climate change due to higher resistance to temperature and precipitation manipulations. The accumulated effect on aboveground biomass of post-harvest secondary growth of C. angustifolia was significant. These results explain the expansion of C. angustifolia during last 40 years and indicate the further expansion in natural boreal wetlands under a warmer and wetter future. Stability of the natural surface water table is critical for the conservation and restoration of G. spiculosa populations reacting to encroachment stress from C. angustifolia expansion. |
| 刊物名称： |
Plos One |
| 参与作者： |
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