文献类型：期刊文献

英文题名：A Study of the Diversity Patterns of Desert Vegetation Communities in an Arid Zone of China

作者：Xin, Zhiming[1,2,3] Li, Xing[2,3] Li, Yonghua[4] Dong, Xue[2,3] Duan, Ruibing[2,3] Chang, Xu[5] Cheng, Yiben[1] Wu, Xiuqing[1] Li, Wei[4]

第一作者：Xin, Zhiming;辛智鸣

通信作者：Cheng, YB[1];Wu, XQ[1]

机构：[1]Beijing Forestry Univ, Sch Soil & Water Conservat, Beijing 100083, Peoples R China;[2]Chinese Acad Forestry, Expt Ctr Desert Forestry, Dengkou 015200, Peoples R China;[3]Natl Forestry & Grassland Adm, Inner Mongolia Dengkou Desert Ecosyst Natl Observa, Dengkou 015200, Peoples R China;[4]Chinese Acad Forestry, Inst Ecol Conservat & Restorat, Beijing 100091, Peoples R China;[5]China Geol Survey, Appl Geol Res Ctr, Chengdu 610036, Peoples R China

年份：2024

卷号：13

期号：19

外文期刊名：PLANTS-BASEL

收录：;Scopus(收录号：2-s2.0-85206572534);WOS:【SCI-EXPANDED(收录号:WOS:001332138600001)】；

基金：This research was funded by the Fundamental Research Funds for the National Key Research and Development Programme (2023YFF130420103, 2023YFF1305201), research on Ecological Photovoltaic Vegetation Configuration Model and Restoration Technology (AMKJ2023-17). The extension and demonstration of low-cover windbreak and sand control forest model of the Chinese Academy of Forestry (2019-33), 'Planting One Billion Trees' Programme and China-Mongolian Cooperation on Desertification (2023BLRD04), and the Fundamental Research Funds for the Central Universities (2021ZY45, 2021BLRD05), and grants from the China Academy of Forestry (IDS2022JY-8, IDS2022JY-9).

语种：英文

外文关键词：plant community; beta-diversity; environmental filtering; species turnover; climate change

摘要：The Gobi Desert ecosystem is currently experiencing the impacts of persistent climate warming and extreme weather. However, the relative influences of factors such as soil, climate, and spatial variables on the beta-diversity of desert plants and their key components have not been systematically studied. In this research, the Dunhuang North Mountain and Mazong Mountain areas were selected as study areas, with a total of 79 plant community plots systematically established. The aim was to explore intercommunity beta-diversity and its components and to analyze the interrelationships with climate factors, soil factors, and geographic distance. The results indicate that (1) there is a geographic decay pattern and significant differences among plant communities in the Dunhuang North Mountain and Mazong Mountain areas, with beta-diversity primarily driven by replacement components. (2) Climate, soil, and geographic distance significantly influence beta-diversity and its replacement components, with climate factors exerting the greatest influence and geographic distance the least. (3) Multiple regression analysis (MRM) reveals differential effects of climate factors, soil factors, and geographic distance on beta-diversity and its replacement components, with climate and soil factors exerting a much greater influence than geographic distance. In summary, the beta-diversity of plant communities and their replacement components in the Dunhuang North Mountain and Mazong Mountain areas result from the combined effects of habitat filtering and dispersal limitation, with habitat filtering having a greater impact, while environmental heterogeneity is an important factor influencing species differences in this region.