Plant diversity mediates the response of ecosystem multifunctionality to climate factor in Eastern Eurasian Steppe

作者：Baizhu Wang, Xiaohui Yang, Yuanjun Zhu, Y.T. Tu, Danyu Wang, Indree Tuvshintogtokh · 发表于：Global Ecology and Conservation · 年份：2024 · DOI：10.1016/j.gecco.2024.e02827 · 被引用次数：15 · 研究领域：Ecology and Vegetation Dynamics Studies、Botany and Plant Ecology Studies、Plant and animal studies

Climate factors can impact the multifunctionality of steppe ecosystem by altering plant diversity. The pivotal role of diversity in mediating these effects is of paramount importance. Given that various facets of plant diversity exhibit diverse responses to climate change and impart distinct impacts on steppe ecosystem multifunctionality, the elucidation of how different dimensions of diversity mediate the effects of climate factors on steppe ecosystem multifunctionality assumes significance. The study area of this research was the typical steppe in Hulun Buir. Its main objective was to examine the direct and indirect impacts of climate factors on plant diversity and ecosystem multifunctionality. The findings showed that, in terms of the role played by climatic factors, precipitation had a greater effect on species diversity, while functional diversity and phylogenetic diversity were mainly influenced by temperature. The impact of climatic factors on below-ground ecosystem multifunctionality was notably substantial. With regard to the mediating role of plant diversity, species diversity played a greater role in moderating the effects of climatic factors on above- and below-ground ecosystem multifunctionality, while functional and phylogenetic diversity were important in mediating the effects of above- and below-ground ecosystem multifunctionality, respectively. To summarize, this study elucidates the correlation between multiple plant community diversities and ecosystem multi...