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Some issues about the impacts of sea level rise on mangroves in China.

FU Hai-feng, TAO Yi-jia, WANG Wen-qing**   

  1. (Key Laboratory of the Coastal and Wetland Ecosystems (Xiamen University), Ministry of Education, Xiamen 361102, Fujian, China)
  • Online:2014-10-10 Published:2014-10-10

Abstract:

It is universally acknowledged that global average sea level is rising and mangroves existing in coastal zones would suffer disturbance of sea level rise. Distributions of mangroves are controlled by main factors including temperature, wave, tide, substrate and salinity. Increased inundation caused by sea level rise would impact the transverse distribution of mangroves on the tidal flat, and mangroves are obliged to transgress inland. In China, sea level rise together with seawalls is threatening the survival of mangroves and small tidal range increases the susceptibility of mangroves to sea level rise. Mangroves of China are extremely sensitive to sea level rise. Presently, there exist several problems about the impacts of sea level rise on mangroves of China. (1) Little research concentrates on the impacts of sea level rise and seawalls on mangroves from the perspective of mangrove community structure. (2) Changes of mangrove ground elevation are poorly understood, which are usually compared with local rises in sea level to predict the effects of sea level rise on mangroves. (3) A monitoring network based on surface elevation table-marker horizon system is urgently needed to observe how mangroves of China respond to sea level rise.
 

Key words: denitrification, irrigation, site preference value, stable isotope, nitrification, N2O