文献类型：期刊文献

英文题名：Effects of soil resource availability on patterns of plant functional traits across spatial scales

作者：Li, Yanpeng[1,2] Xu, Han[2] Chen, Jie[2] Xiao, Yihua[2] Ni, Yunlong[1] Zhang, Ruyun[1] Ye, Wanhui[1,3] Lian, Juyu[1,3]

第一作者：李艳朋;Li, Yanpeng

通信作者：Lian, JY[1]

机构：[1]Chinese Acad Sci, Ctr Plant Ecol Core Bot Gardens, Key Lab Vegetat Restorat & Management Degraded E, Guangdong Prov Key Lab Appl Bot South China Bot G, Guangzhou, Peoples R China;[2]Chinese Acad Forestry, Forest Ecol Res Ctr, Res Inst Trop Forestry, Guangzhou, Peoples R China;[3]Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou, Peoples R China

年份：2022

卷号：12

期号：2

外文期刊名：ECOLOGY AND EVOLUTION

收录：;Scopus(收录号：2-s2.0-85125150018);WOS:【SCI-EXPANDED(收录号:WOS:000760366500071)】；

基金：This work was supported by the Strategic Priority Research Program of the Chinese Academy of Sciences [XDB31030000], Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) [GML2019ZD0408], the National Key R&D Program of China [2017YFC0505802], and Chinese Forest Biodiversity Monitoring Network.

语种：英文

外文关键词：environmental gradient; plant functional trait; soil resource availability; spatial scale; the stress-dominance hypothesis

摘要：Identifying patterns and drivers of plant community assembly has long been a central issue in ecology. Many studies have explored the above questions using a trait-based approach; however, there are still unknowns around how patterns of plant functional traits vary with environmental gradients. In this study, the responses of individual and multivariate trait dispersions of 134 species to soil resource availability were examined based on correlational analysis and torus-translation tests across four spatial scales in a subtropical forest, China. Results indicated that different degrees of soil resource availability had different effects on trait dispersions. Specifically, limited resource (available phosphorus) showed negative relationships with trait dispersions, non-limited resource (available potassium) showed positive relationships with trait dispersions, and saturated resource (available nitrogen) had no effect on trait dispersions. Moreover, compared with the stem (wood density) and architectural trait (maximum height), we found that leaf functional traits can well reflect the response of plants to nutrient gradients. Lastly, the spatial scale only affected the magnitude but not the direction of the correlations between trait dispersions and environmental gradients. Overall, the results highlight the importance of soil resource availability and spatial scale in understanding how plant functional traits respond to environmental gradients.