生态学杂志2025，Vol.44Issue(12)：3950-3959,10.DOI:10.13292/j.1000-4890.202512.019
胶州湾滨海湿地互花米草时空动态变化及入侵机制
Spatiotemporal variations and invasion mechanism of Spartina alterniflora in the Jiaozhou Bay coastal wet-land
摘要
Abstract
Based on field surveys,literature reviews,and satellite remote sensing,we investigated the spatiotempo-ral variations and mechanisms of Spartina alterniflora invasion in the Jiaozhou Bay coastal wetland of Qingdao.The results showed that S.alterniflora invasion in the Jiaozhou Bay exhibited distinct spatiotemporal characteristics.Spe-cifically,the estuary of the Yanghe River had the largest invasion area(338.75 hm2)and the fastest expansion rate.In contrast,the invasion areas at the confluence estuary of the Moshui River and the Baisha River and the eastern tidal flat area of the Jiaozhou Bay National Ocean Park were relatively smaller,but the growth trend was no-ticeable.The invasion of Spartina alterniflora in the Jiaozhou Bay coastal wetland could be attributed to four main factors:(1)the intrinsic biological traits of Spartina alterniflora;(2)the unique environmental conditions of the Jiaozhou Bay;(3)S.alterniflora mainly invaded through three expansion modes:external isolation expansion,edge expansion,and tidal creek-led expansion.It occupied the Yanghe Estuary area,the confluence estuary area of the Moshui River and Baisha River,and the eastern tidal flat area of Jiaozhou Bay National Marine Park respective-ly,showing different expansion rates and spatial characteristics;and(4)the impact of human activities(such as the construction of sewage outlets and rubber dams,and aquaculture)on S.alterniflora invasion in the Jiaozhou Bay coastal wetland(the northern bank of the Yanghe estuary,the eastern river channel from the Baisha River es-tuary,and the eastern tidal flat area of the Jiaozhou Bay National Ocean Park).By elucidating the spatiotemporal variations of S.alterniflora invasion,this study revealed the invasion mechanisms in the Jiaozhou Bay coastal wet-land,providing a scientific basis for the development of rational wetland protection and S.alterniflora control strate-gies to prevent the secondary invasion.These findings offer enlightening implications for policy-making and practical applications in related fields.关键词
互花米草/胶州湾滨海湿地/遥感监测/时空动态变化/入侵机制Key words
Spartina alterniflora/Jiaozhou Bay coastal wetland/remote sensing monitoring/spatiotemporal dyna-mics/invasion mechanism引用本文复制引用
张思怡,董柳,毛友同,孙一宁,王森,孔范龙,李毛毛..胶州湾滨海湿地互花米草时空动态变化及入侵机制[J].生态学杂志,2025,44(12):3950-3959,10.基金项目
国家自然科学基金项目(42277495)和青岛市科技计划项目(21-1-4-ny-1-nsh)资助. （42277495）
