Ye Chongchong, Wang Shuai, Wang Yi, Zhou Tiancai, Li Ruowei
State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing, China.
School of Life Sciences and State Key Lab of Biological Control, Sun Yat-sen University, Guangzhou, China.
Front Plant Sci. 2023 May 30;14:1106035. doi: 10.3389/fpls.2023.1106035. eCollection 2023.
Many studies have investigated the effects of environmental context on biodiversity or multifunctionality in alpine regions, but it is uncertain how human pressure and climate may affect their relationships. Here, we combined the comparative map profile method with multivariate datasets to assess the spatial pattern of ecosystem multifunctionality and further identify the effects of human pressure and climate on the spatial distribution of biodiversity-multifunctionality relationships in alpine ecosystems of the Qinghai-Tibetan Plateau (QTP). Our results indicate that at least 93% of the areas in the study region show a positive correlation between biodiversity and ecosystem multifunctionality across the QTP. Biodiversity-multifunctionality relationships with increasing human pressure show a decreasing trend in the forest, alpine meadow, and alpine steppe ecosystems, while an opposite pattern was found in the alpine desert steppe ecosystem. More importantly, aridity significantly strengthened the synergistic relationship between biodiversity and ecosystem multifunctionality in forest and alpine meadow ecosystems. Taken together, our results provide insights into the importance of protecting and maintaining biodiversity and ecosystem multifunctionality in response to climate change and human pressure in the alpine region.
许多研究调查了环境背景对高山地区生物多样性或多功能性的影响，但人类压力和气候如何影响它们之间的关系尚不确定。在此，我们将比较地图剖面法与多变量数据集相结合，以评估生态系统多功能性的空间格局，并进一步确定人类压力和气候对青藏高原（QTP）高山生态系统中生物多样性 - 多功能性关系空间分布的影响。我们的结果表明，研究区域内至少93%的区域在整个青藏高原上生物多样性与生态系统多功能性之间呈现正相关。随着人类压力增加，生物多样性 - 多功能性关系在森林、高寒草甸和高寒草原生态系统中呈下降趋势，而在高寒荒漠草原生态系统中则发现相反的模式。更重要的是，干旱显著加强了森林和高寒草甸生态系统中生物多样性与生态系统多功能性之间的协同关系。综上所述，我们的结果为在高山地区应对气候变化和人类压力时保护和维持生物多样性及生态系统多功能性的重要性提供了见解。
