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Scientia Silvae Sinicae ›› 2010, Vol. 46 ›› Issue (10): 144-152.doi: 10.11707/j.1001-7488.20101024

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Responses of Baldcypress and Pondcypress Seedlings to Multiple Stresses and Reforestation Implications for Riparian Zones of the Three Gorges Reservoir Region of China

Li Changxiao1,2;Geng Yanghui2;Ye Bing3;Schneider Rebecca4   

  1. 1.Key Laboratory for the Eco-Environment of the Three Gorges Reservoir Region of the Ministry of EducationCollege of Life Sciences;Southwest University Chongqing 400715;2.Chongqing Key Laboratory for the Protection and Restoration of Forest Ecology of the Three Gorges Reservoir Region Chongqing 400036;3.Research Institute of Forestry Policy and Information Chinese Academy of Forestry Beijing 100091;4.Department of Natural Resources College of Agriculture and Life Sciences Cornell University Ithaca NY 14853 USA.
  • Received:2009-10-26 Revised:2010-07-21 Online:2010-10-25 Published:2010-10-25

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Abstract:

Baldcypress (Taxodium distichum) and pondcypress (T. ascendens) seedlings less than 3-year-old are susceptible to multiple stresses such as drought, salinity, alkalinity, pollution and diseases, although the two species are widely recognized adaptable and/or tolerant to flooding. However, 3-year-old or older, or stronger baldcypress and pondcypress saplings may perform better than the younger ones when subjected to multiple stresses, and thus could be selected for reforestation. The hybrids of Taxodium “zhongshansa 302” and T. “zhongshansa 401” could be used for reforestation under high salinity and alkalinity environments. In general, baldcypress and pondcypress are promising candidates for reforestation in riparian zones of the Three Gorges Reservoir region. However, more researches, such as responses of baldcypress and pondcypress to deep submergence and two or more stresses combination, still needs to be done.

Key words: multiple stresses, eco-physiological response, Taxodium distichum, T ascendens, reforestation