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Vertical structural complexity of plant communities represents the combined effects of resource acquisition and environmental stress on the Tibetan Plateau

文献类型：期刊论文

作者Cheng, Changjin1,2; Zhang, Jiahui3; Li, Mingxu4; Liu, Congcong4; Xu, Li4; He, Nianpeng3,5
刊名COMMUNICATIONS BIOLOGY
出版日期2024-04-01
卷号7期号:1页码:11
DOI10.1038/s42003-024-06076-x
通讯作者Zhang, Jiahui(zhangjiahui@nefu.edu.cn) ; He, Nianpeng(henp@igsnrr.ac.cn)
英文摘要The vertical structural complexity (VSC) of plant communities reflects the occupancy of spatial niches and is closely related to resource utilization and environmental adaptation. However, understanding the large-scale spatial pattern of VSC and its underlying mechanisms remains limited. Here, we systematically investigate 2013 plant communities through grid sampling on the Tibetan Plateau. VSC is quantified as the maximum plant height within a plot (Height-max), coefficient of variation of plant height (Height-var), and Shannon evenness of plant height (Height-even). Precipitation dominates the spatial variation in VSC in forests and shrublands, supporting the classic physiological tolerance hypothesis. In contrast, for alpine meadows, steppes, and desert grasslands in extreme environments, non-resource limiting factors (e.g., wide diurnal temperature ranges and strong winds) dominate VSC variation. Generally, with the shifting of climate from favorable to extreme, the effect of resource availability gradually decreases, but the effect of non-resource limiting factors gradually increases, and that the physiological tolerance hypothesis only applicable in favorable conditions. With the help of machine learning models, maps of VSC at 1-km resolution are produced for the Tibetan Plateau. Our findings and maps of VSC provide insights into macroecological studies, especially for adaptation mechanisms and model optimization. A study on plant community structure suggests that the underlying mechanisms that dominate vertical structural complexity variation will gradually shift from resource acquisition strategies to conservation priority strategies as climates shift from favorable to extreme.
WOS关键词GLOBAL PATTERNS ; SPECIES RICHNESS ; DIVERSITY ; CLIMATE ; DETERMINANTS ; TEMPERATURE ; PRODUCTIVITY ; FORESTS ; HEIGHT ; GROWTH
资助项目National Natural Science Foundation of China (National Science Foundation of China)[2019QZKK060602] ; Second Tibetan Plateau Scientific Expedition and Research Program[42141004] ; Second Tibetan Plateau Scientific Expedition and Research Program[42071303] ; Second Tibetan Plateau Scientific Expedition and Research Program[31988102] ; National Natural Science Foundation of China ; China Science and Technology Cloud
WOS研究方向Life Sciences & Biomedicine - Other Topics ; Science & Technology - Other Topics
语种英语
WOS记录号WOS:001195782000004
出版者NATURE PORTFOLIO
资助机构National Natural Science Foundation of China (National Science Foundation of China) ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Natural Science Foundation of China ; China Science and Technology Cloud
源URL[http://ir.igsnrr.ac.cn/handle/311030/204242]  
专题中国科学院地理科学与资源研究所
通讯作者Zhang, Jiahui; He, Nianpeng
作者单位1.Chinese Acad Sci, State Key Lab Plant Divers & Specialty Crops, South China Bot Garden, Guangzhou 510650, Peoples R China
2.Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing 100083, Peoples R China
3.Northeast Forestry Univ, Key Lab Sustainable Forest Ecosyst Management, Minist Educ, Harbin 150040, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
5.Northeast Forestry Univ, Northeast Asia Ecosyst Carbon Sink Res Ctr, Harbin 150040, Peoples R China
推荐引用方式
GB/T 7714		 Cheng, Changjin,Zhang, Jiahui,Li, Mingxu,et al. Vertical structural complexity of plant communities represents the combined effects of resource acquisition and environmental stress on the Tibetan Plateau[J]. COMMUNICATIONS BIOLOGY,2024,7(1):11.
APA Cheng, Changjin,Zhang, Jiahui,Li, Mingxu,Liu, Congcong,Xu, Li,&He, Nianpeng.(2024).Vertical structural complexity of plant communities represents the combined effects of resource acquisition and environmental stress on the Tibetan Plateau.COMMUNICATIONS BIOLOGY,7(1),11.
MLA Cheng, Changjin,et al."Vertical structural complexity of plant communities represents the combined effects of resource acquisition and environmental stress on the Tibetan Plateau".COMMUNICATIONS BIOLOGY 7.1(2024):11.

入库方式： OAI收割

来源：地理科学与资源研究所

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