Effective assessment of paradigms of coastal afforestation in the context of climate change in Thanh Hoa province

Abstract

The results of this study show that in the mangrove model, the Sonneratia apetala Buch-Ham has higher growth parameters compared with the Sonneratia caseolarisi. For windbreaks and sandbreaks, the Casuarina equisetifolia has the highest growth parameters, the next ones belong to the Acacia auriculiformis (known as auri), and the lowest ones are evaluated as the drought tolerance of the Melia azedarach. The economic efficiency of the mangrove model is represented by direct use value of 23,650,000 VND/ha per year; the value of carbon accumulation is estimated at 3,253,767 VND/ha per year; the selection value reaches 7,081,208 VND/ha per year; the residual value is calculated at 6,517,208 VND/ha per year, respectively. Windbreaks and sandbreaks demonstrate the ecological efficiency in reducing wind speeds behind the forest belt, sand fixing, improving humidity and soil temperature, and returning the fallen objects to the soil, thereby reducing the impact of climate change. In order to promote the role of coastal forests, the authority of Thanh Hoa province has to implement effectively the national policies and the provincial guidelines on the management, protection, and development of coastal forests. Besides that, the province should make beneficial policies for stakeholders and encourage local people to directly participate in cultivating, tending, and protecting the coastal forests.