北京大学学报（自然科学版）2026，Vol.62Issue(3)：596-608,13.DOI:10.13209/j.0479-8023.2026.014
深圳湾红树林自然保护区乡土红树老鼠簕扩散动态与生长策略研究
Dispersal Dynamics and Growth Strategies of Native Mangrove Species Acanthus ilicifolius in the Mangrove Nature Reserve of Shenzhen Bay
摘要
Abstract
Through permanent plot-based ecological monitoring of five representative mangrove communities(Kandelia obovata-Aegiceras corniculatum community,K.obovata community,K.obovata-Avicennia marina com-munity,A.marina community,and artificial forest)in the Mangrove Nature Reserve of Shenzhen Bay,combined with measurements of leaf functional traits and sediment physicochemical parameters,this study elucidates the po-pulation distribution pattern,asexual reproduction dynamics and ecological strategies of the understory A.ilicifolius population under the background of terrestrialization.The results show that A.ilicifolius has become the domi-nant understory species(importance value:85.38%),with an aggregated distribution pattern(K<0)and a uniform distribution(PAI=1,C<1).The population density of mature individuals showes slow expansion(1991-2011),rapid growth(2011-2019:0.03→16.84±13.11 plants/m2),and stabilization by 2023(17.26±7.03 plants/m2).Clonal rep-roduction is one of the key strategies for the A.ilicifolius population to dispersal.A.ilicifolius exhibits stolo-niferous clonal growth with guerrilla architecture,characterized by a mean spacer length(41.26±32.92 cm)and monthly elongation rate(1.29±0.66 cm/month),reflecting an expansion-growth(escape strategy)under low-light understory habitats.High-sedimentation zones trigger an ecological strategy shift from CS to C or CR,manifested by increased canopy height and long-spacer stolon extension.This study provides early-warning data for mangrove ecological risks.关键词
红树林/乡土红树植物/老鼠簕/克隆繁殖/叶功能性状Key words
mangrove/native mangrove species/Acanthus ilicifolius/clonal reproduction/leaf functional traits引用本文复制引用
黄奕霖,郭欢敏,沈小雪,胡柳柳,李瑞利..深圳湾红树林自然保护区乡土红树老鼠簕扩散动态与生长策略研究[J].北京大学学报（自然科学版）,2026,62(3):596-608,13.基金项目
深圳市可持续发展专项(KCXFZ20211020165000001)、国家自然科学基金(42477128)、广东省普通高校创新团队项目(2023KCXTD050)和福田红树林监测项目(0832-SFCX23FSC071)资助 （KCXFZ20211020165000001）
