Quantitative Dynamics of Mangrove Populations in Guangxi Shankou Mangrove Reserve
In order to understand the survival status of mangrove populations in Guangxi Shankou Mangrove Ecological National Nature Reserve(hereinafter referred to as'Shankou Reserve'),from August to Septem-ber 2021,seventeen 10 m×10 m plots were set up to carry out field investigation of mangrove populations,and the dynamic changes of mangrove population in Shankou Reserve were analyzed.The results showed that there were 95 strains of Kandelia obovata,977 strains of Aegiceras corniculatum,119 strains of Avicennia marina,123strains of Bruguiera gymnorhiza and 134 strains of Rhizophora stylosa in the study area.The number of population regeneration layers of these five mangrove populations were relatively scarce.The sur-vival curve of Aegiceras corniculatum population belonged to Deevey-Ⅰ type.The survival curves of K.obo-vata population,Avicennia marina population,B.gymnorrhiza population and R.stylosa population were between Deevey-Ⅰ type and Deevey-Ⅱ type.The 5 mangrove populations were stable.The 5 mangrove popu-lations were susceptible to the environment and were highly sensitive to external interference.However,rela-tively speaking,the Aegiceras corniculatum population had the strongest anti-interference ability,and the B.gymnorrhiza population was most susceptible to external interference.After the prediction of the next 2,4,and 6 age classes,the 5 mangrove populations as a whole had a certain ability to renew in the future,and the Aegiceras corniculatum population had better replenishment ability than other mangrove populations.The dynamic analysis of mangrove population can provide a theoretical basis for the layout of mangrove ecosystem carbon storage survey sections.In addition,it is suggested to strengthen the tending management of man-grove populations in Shankou Reserve to ensure the overall stability of mangrove populations.
mangrove populationstatic life tablepopulation quantitative dynamicssurvival functiontime se-quence
万方数据
维普
