Current status of mangrove forests in Quang Ninh

Abstract

This study was conducted to assess the status of mangrove forests in Quang Ninh Province through surveys of representative standard plots in Tien Yen and Quang Yen districts. The results show that Quang Ninh province has a total area of 23.260,25ha of mangrove forest and land, of which 19.820ha of mangrove forests have reserves. There are two main vegetation states: (i) For natural forests, distributed in medium tidal areas with hard clay soil media, subsidence of 10cm, the forest structure is relatively simple, the main species include Rhizophora
stylosa, Bruguiera selangular, Avicennia marina. Natural forest is degrading due to regenerated forest infallowmarshes, dredging operation lead to the unstable flow circulation system of tides. (ii) For planted forests, the degree of degradation is low, mainly due to altered site conditions and high sedimentation. The main species are Rhizophora stylosa, Bruguiera selangular distributed on tight clay
sites, subsidence of 5 - 10cm. Some measures for mangrove rehabilitation such as: plant supplementary species suitable with ecological and site conditions to form forests with many canopy layers; Develop appropriate policies and attract local people on management, protection and development of mangrove forests.