黄皮湿地植物群落多样性及土壤有机碳储量  

Plant community diversity and soil organic carbon storage in Huangpi wetland

作　　者：陈小荣 朱志成 胡洵瑀 杨中杰 谢鸿波 陈超豪 张涵雨 罗媛媛 张爱英 CHEN Xiaorong;ZHU Zhicheng;HU Xunyu;YANG Zhongjie;XIE Hongbo;CHEN Chaohao;ZHANG Hanyu;LUO Yuanyuan;ZHANG Aiying(Qingyuan Conservation Center of Qianjiangyuan-Baishanzu National Park,Qingyuan 323800,Zhejiang,China;China Jiliang University,Hangzhou 310018,China;East China Survey and Planning Institute,National Forestry and Grassland Administration,Hangzhou 310019,China)

机构地区：[1]钱江源-百山祖国家公园庆元保护中心,浙江庆元323800 [2]中国计量大学生命科学学院,杭州310018 [3]国家林业和草原局华东调查规划院,杭州310019

出　　处：《生态学杂志》2025年第3期807-813,共7页Chinese Journal of Ecology

基　　金：国家自然科学基金项目(32371603和31901211);中央林业改革发展资金项目(财政部[2021]82号);浙江省自然科学基金探索项目(LY21C030006);浙江省“尖兵”“领雁”研发攻关计划项目(2023C03137)资助。

摘　　要：湿地是重要的碳库,探究其碳储量对全球碳循环和湿地保护具有重要意义。本研究选择亚热带亚高山沼泽湿地——浙江百山祖黄皮湿地,探究湿地植物群落多样性和土壤有机碳储量特征。结果表明:(1)黄皮湿地上下湖共记录有植物54种,隶属于26科44属。其中莎草科最多,有13种;其次是禾本科,有5种;其余物种零星分布于各科。(2)4种典型群落的物种丰富度和Shannon多样性指数没有明显差异,而细叶刺子莞群落的Simpson生态优势度指数和Pielou均匀度指数均显著低于其他3种群落。同时,细叶刺子莞群落的碳储量(1225.36 g·m^(-2))最高。(3)6种优势植物的生物量和地上/地下生物量比值没有显著差异,但碳含量、地上/地下碳储量比值均差异显著。6种优势植物根茎叶的碳含量均在40%以上。(4)黄皮湿地土壤有机碳含量和密度较高,上下湖总体的生态系统碳储量为0.018 Tg。黄皮湿地有着较高的碳密度和碳储量,可提供很好的碳汇功能,具有极高的保护价值。Wetland is an important carbon pool.Exploring the carbon storage of wetlands is significant to global carbon cycle and wetland conservation.Here,we investigated plant community diversity and soil organic carbon storage in Baishanzu Huangpi wetland,a subtropical subalpine marsh.The results showed that:(1)A total of 54 plant species(belonging to 26 families,44 genera)were recorded.Most species were from the Cyperaceae family(13 species),followed by Poaceae(5 species).The remaining species were scattered in other families.(2)There was no significant difference in species richness and Shannon index among four typical communities.The Simpson index and Pielou index of the Rhynchospora faberi community were significantly lower than other three communities.The Rhynchospora faberi community had the highest carbon storage(1225.36 g·m^(-2)).(3)There were no significant differences in biomass and aboveground/underground biomass ratio among six dominant species,whereas carbon storage,and aboveground/underground carbon storage ratio showed significant difference.The carbon content of roots,stems and leaves of the six dominant species were higher than 40%.(4)Soil organic carbon content and density of Huangpi wetland were relatively high.The total ecosystem carbon storage was 0.018 Tg.Compared with other wetlands,Huangpi wetland had a higher carbon density and stock.Therefore,Huangpi wetland provides a good carbon sink function and has high conservation value.

关 键 词：SHANNON多样性指数 地上/地下碳含量 地上/地下生物量 植物群落碳储量 生态系统碳储量 

分 类 号：Q948[生物学—植物学]