Comparative study on the adaptability of Alnus trabeculosa and Phragmites australis in tidal wetland

ZHANG Hai-yan; WANG Tian-hui; LU Jian-jian

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Article Navigation > Journal of East China Normal University (Natural Sciences) > 2014 > (1): 107-115, 122

ZHANG Hai-yan, WANG Tian-hui, LU Jian-jian. Comparative study on the adaptability of Alnus trabeculosa and Phragmites australis in tidal wetland[J]. Journal of East China Normal University (Natural Sciences), 2014, (1): 107-115, 122.

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ZHANG Hai-yan, WANG Tian-hui, LU Jian-jian. Comparative study on the adaptability of Alnus trabeculosa and Phragmites australis in tidal wetland[J]. Journal of East China Normal University (Natural Sciences), 2014, (1): 107-115, 122.

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Comparative study on the adaptability of Alnus trabeculosa and Phragmites australis in tidal wetland

1.
State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China;
2.
Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, East China Normal University, Shanghai 200062, China;
3.
Department of Life Science, Shanghai University, Shanghai 200444, China

Received Date: 2013-03-01
Rev Recd Date: 2013-06-01
Publish Date: 2014-01-25

Abstract

Abstract

Self-designed experimental mesocosm for semidiurnal tidal simulation was used to compare the effect of different submergence time on photosynthesis process and physiological characteristics of Alnus trabeculosa and native species (Phragmites australis). The results showed that A. trabeculosa and P. australis have similar decreasing tendency in Stomatal conductance (Gs), Net photosynthetic rate (Pn) and Transpiration rate (Tr) with increasing submergence time; however, the water use efficiency (WUE) of these two species showed the tendency of first increased and then decreased, suggesting that the increasing submergence time promoted the WUE of A. trabeculosa and P. australis in some degree. With daily submergence time increasing, POD activity and MDA content of A. trabeculosa decreased and increased, respectively; POD activity of P. australis first increased and then decreased; however, MDA content of P. australis hasnt significant difference. A. trabeculosa showed the similar tolerance to the periodic inundation of tidal wetland, which suggests that A. trabeculosa can be also used to construct ecological engineering in Chongxi wetland.
- Chongxi wetland,
- Alnus trabeculosa,
- Phragmites Australis,
- smiulated waterlogging,
- eco-physiological process

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References

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