Characteristics Analysis and Protection Suggestions of Mangrove Resources in Qinzhou City,Guangxi
To analyze the current situation of mangrove resources in Qinzhou City,this paper is based on the results of the third national land survey in Qinzhou City and the annual update data of the"One Map"of forest resource management in 2019.It analyzes the area,naturalness,dominant species,distribution characteristics,community types,and characteristics of mangrove resources in Qinzhou City,combining them with the field survey results.The results show that the total area of mangrove land in Qinzhou City is 3 683.634 7 hm2,of which the mangrove area is 3 595.375 5 hm2,accounting for 97.60％of the total area.The suitable forest area for mangrove forests is 80.532 8 hm2,accounting for 2.20％of the total area.The mangrove nursery area is 7.726 4 hm2,accounting for 0.20％of the total area.The natural degree of mangroves is Grade Ⅲ:99.517 6 hm2,accounting for 2.77％of the total area of mangroves.Grade Ⅳ:654.716 4 hm2,accounting for 18.21％of the total mangrove area.Class Ⅴ:2 841.141 5 hm2,accounting for 79.02％of the total mangrove area.There are 13 families and 17 species of mangrove plants in the area,including 8 families and 10 species of true mangrove plants,6 families and 7 species of semi-mangroves.There are 5 dominant tree species and 14 different community types distributed with the Aegiceras corniculatum+Kandelia candel community having the largest distributiong area.The total area of mangrove land in Qinzhou City has shown stable growth compared to 2013,with a high level of naturalness and a diverse range of mangrove tree species and community types.
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