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| Content Provider | Springer Nature Link |
|---|---|
| Author | Wang, G.H. |
| Copyright Year | 2003 |
| Abstract | Differences in leaf δ$^{13}$C among four dominant species as well as the species-specific response to the fluctuations of either soil moisture or monthly mean temperature were examined along a secondary succession sere with a time scale from 3 to 149 y on the Loess Plateau in north-western China. We used leaf δ$^{13}$C as a surrogate for water use efficiency (WUE) of the mentioned dominant species. Bothrichloa ischaemun as a dominant species in the final succession stage belongs to C$_{4}$ photosynthesis pathway, while the other three dominant species occurring in the first three succession stages belong to C$_{3}$ pathway. The overall trend of leaf δ$^{13}$C variation among the three C$_{3}$ species was Artemisia gmelinii (in the third stage) and Lespedeza davurica (in the second stage) > Artemisia scoparia (in the first stage). This suggests that species with higher WUE (more positive leaf δ$^{13}$C) would have substantial competitive advantages in the context of vegetation succession. Furthermore, species with highest WUE (i.e. C$_{4}$ pathway) have great potential to be dominant in the final succession stage in the habitats (such as the study area) undergoing strong water stress in growing season. The evolution of WUE among the dominant species occurring in different succession stages strongly depends on the time scale of given stage since abandonment. The longer the time scale is, the more significant the differences among them in terms of leaf δ$^{13}$C, hence WUE. Our results support the notions that leaf δ$^{13}$C may be more positive when water supply is less favourable. |
| Starting Page | 525 |
| Ending Page | 531 |
| Page Count | 7 |
| File Format | |
| ISSN | 03003604 |
| Journal | Photosynthetica |
| Volume Number | 41 |
| Issue Number | 4 |
| e-ISSN | 15739058 |
| Language | English |
| Publisher | Kluwer Academic Publishers |
| Publisher Date | 2003-01-01 |
| Publisher Place | Dordrecht |
| Access Restriction | Subscribed |
| Subject Keyword | Plant Physiology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physiology Plant Science |
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