摘要
生物多样性是生态系统多功能性的重要驱动因素,生态系统生物多样性与多功能性之间的关系是近年来生态学研究的热点。以往研究主要集中在预测物种丰富度如何影响生态系统多功能性,而不同维度生物多样性对生态系统多功能性的影响机制仍然不清楚。研究黄河三角洲不同维度生物多样性、环境因素和生态系统多功能性及其之间的关系,结果表明,黄河三角洲生态系统多功能性同时受环境因素和生物多样性因素的影响,但是,生物多样性在维持生态系统多功能性上的相对贡献明显高于环境因素;植物群落的物种丰富度、物种均匀度、谱系多样性和功能离散指数分别与生态系统多功能性显著正相关,而谱系亲缘关系指数和植物性状群落权重平均值对生态系统多功能性并无显著影响,这说明与分类多样性和谱系多样性相比,植物群落功能多样性的增加能够更有效地提升生态系统多功能性;丰富的植物功能多样性是维持黄河三角洲高水平生态系统多功能性的关键,黄河三角洲生态系统多功能性的维持主要受互补效应的驱动。
Biodiversity is an important driver of ecosystem multifunctionality.Understanding the relationship between biodiversity and ecosystem multifunctionality has been a hot ecological research topic over the last decades.Previous studies have mostly focused on predicting how species richness impacts ecosystem multifunctionality,while the effect of functional diversity on ecosystem multifunctionality remains unclear.We evaluated relationships among biodiversity,environmental factors and ecosystem multifunctionality in the Yellow River Delta.We found that ecosystem multifunctionality was affected by both environmental factors and biodiversity factors,but the contribution of biodiversity to maintaining ecosystem multifunctionality was significantly higher than that of environmental factors.There was a significant positive correlation between plant species richness,species evenness,phylogenetic diversity,functional dispersion index and ecosystem multifunctionality,but there was no significant correlation between net relatedness index,community weighted mean trait value and ecosystem multifunctionality.Compared with taxonomic diversity and phylogenetic diversity,the increase of functional diversity could improve ecosystem multifunctionality more effectively.Rich plant functional diversity was the key to maintaining the high level of ecosystem multifunctionality in the Yellow River Delta.Ecosystem multifunctionality was mainly driven by complementary effect in the Yellow River Delta.
作者
张文馨
衣世杰
范小莉
张学峰
刘幸红
房用
马海林
刘方春
梁玉
ZHANGWenxin;YI Shijie;FAN Xiaoli;ZHANG Xuefeng;LIU Xinghong;FANG Yong;MAHailin;LIU Fangchun;LIANG Yu(Shandong Academy of Forestry Sciences,Jinan 250014,Shandong,P.R.China;First Institute of Oceanography,Ministry of Natural Resources,Qingdao 266061,Shandong,P.R.China;Shandong Institute of Land and Space Planning,Jinan 250014,Shandong,P.R.China)
出处
《湿地科学》
CSCD
北大核心
2023年第1期1-8,共8页
Wetland Science
基金
山东省自然科学基金项目(ZR2017BC090)
山东省农业科技资金(林业科技创新)项目(2019LY010和2019LY004)资助。
关键词
植物群落
分类多样性
谱系多样性
功能多样性
生态系统多功能性
plant community
taxonomic diversity
phylogenetic diversity
functional diversity
ecosystem multifunctionality
