CAJ | 학술논문

气候变化和人类活动制约下的红树林演变是一种长时间尺度效应，而沉积物则是记录这种响应的最佳档案。采用古生态学研究思路，选择有效的示踪参数是解读这一档案的有效途径。本文通过广西钦州湾红树林区1根柱状沉积物中有机碳同位素（δ13 C ）、C／N分析和孢粉鉴定，以沉积物中的红树林源有机碳贡献和红树植物孢粉组合为示踪参数，在210 Pb年龄框架构建的基础上，通过对比研究红树林源有机碳贡献和红树孢粉组合特征，揭示百年来钦州湾红树林兴衰和群落演替规律；进而重塑其红树林演变历史：兴盛期（1864－1918年）、衰退期（1918－1968年）和低谷期（1968－2007年），这与土地替代、遥感分析和现场勘测数据较为吻合。结合气候变化和人类活动资料，发现钦州湾红树林的近期衰退主要源于人类活动的影响，尤其是虾塘围垦；而与气候变化关系不大。
기후변화화인류활동제약하적홍수림연변시일충장시간척도효응，이침적물칙시기록저충향응적최가당안。채용고생태학연구사로，선택유효적시종삼수시해독저일당안적유효도경。본문통과엄서흠주만홍수림구1근주상침적물중유궤탄동위소（δ13 C ）、C／N분석화포분감정，이침적물중적홍수림원유궤탄공헌화홍수식물포분조합위시종삼수，재210 Pb년령광가구건적기출상，통과대비연구홍수림원유궤탄공헌화홍수포분조합특정，게시백년래흠주만홍수림흥쇠화군락연체규률；진이중소기홍수림연변역사：흥성기（1864－1918년）、쇠퇴기（1918－1968년）화저곡기（1968－2007년），저여토지체대、요감분석화현장감측수거교위문합。결합기후변화화인류활동자료，발현흠주만홍수림적근기쇠퇴주요원우인류활동적영향，우기시하당위은；이여기후변화관계불대。
Mangrove evolution is the long time‐scale process under the condition of climate change and human activi‐ty ,and is clearly recorded by the surrounding sediments .It is a new palaeoecological approach to trace mangrove e‐volution using organic carbon isotopes and mangrove pollen from sedimentary records .In the study ,a sediment core was collected from a mangrove swamp of the Qinzhou Bay ,Guangxi .Based on the three end‐number model ,δ13 C and C/N analysis were used to calculate the contribution of mangrove‐derived organic carbon .Compared with man‐grove pollen assemblage and 210 Pb dating ,it revealed the temporal evolution of mangrove development and its com‐munity succession in the recent 150 years .The mangrove evolution could be divided into three major stages:flour‐ish (1864-1918 A .D .) ,degradation (1918-1968 A .D .) and low‐level period (1968-2007 A .D .) ,which was consistent with the previous reports .An significantly degradation in mangrove ecosystem recently corresponded to the increase of reclamation area (especially for the shrimp‐pond reclamation) and artificial seawalls ,rather than the climate change as recorded in the region .