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Structural regulation and natural restoration of Futian Mangrove in Shenzhen Bay.

HU Tao1, CHOU Qing-chuan1, HE Shi-yu1, XU Hua-lin2, SHI Xiu-hua3*#br#   

  1. (1College of Life Science and Oceanography, Shenzhen University, Shenzhen 518060, Guangdong, China; 2Neilingding Futian National Nature Reserve, Shenzhen 518048, Guangdong, China; 3Golf College, Shenzhen University, Shenzhen 518060, Guangdong, China).
  • Online:2016-06-10 Published:2016-06-10

Abstract: A structural regulation experiment was carried out to decrease the abundance of the introduced mangrove species Sonneratia caseolaris and S. apetala in a mangrove forest in Futian Mangrove Reserve in Shenzhen Bay in May 2014. The natural restoration of mangrove plants was investigated once a month during June 2014 to May 2015. The results showed that there were five mangrove species in the testing plots, including Kandelia obovata, Aegiceras corniculatum, S. caseolaris, Avicennia marina and S. apetala. Their importance values were 36.72, 32.51, 20.96, 5.28 and 4.53, respectively. After thinning, native mangrove plants played a more important role in the natural recovery process, whereas introduced mangrove S. caseolaris grew faster, competing with the native mangrove species. In order to improve the competitive ability of native mangrove species, multiple artificial regulations for S. caseolaris are needed in the future. The species richness within the testing plots was high, but the individuals of each species distributed unevenly. Therefore, supplementary planting of native mangrove species is needed in the future to ensure the stability of mangrove community structure.

Key words: mainstream cigarette smoke, endogenous harmful component, chemical constituent.