Divergence and conservative of stomatal conductance in coexisting species in response to climatic stress in Tibetan Plateau
文献类型：期刊论文
| 作者 | Wang, Jing1; Wen, Xuefa1,2,3 |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2022-05-01 |
| 卷号 | 138页码:8 |
| 关键词 | Coexisting species Water use strategy Stomatal conductance Economic trait Frequency distribution |
| ISSN号 | 1470-160X |
| DOI | 10.1016/j.ecolind.2022.108843 |
| 通讯作者 | Wang, Jing(wangjing.15b@igsnrr.ac.cn) ; Wen, Xuefa(wenxf@igsnrr.ac.cn) |
| 英文摘要 | Convergence of eco-physiological function in harsh habitats due to environmental filtering is well-known, however, some evidence of eco-physiological divergence in coexisting species also exists. Experimental data to verify whether divergence of eco-physiological function in coexisting species increases with increasing environmental stress remain limited. Here, we measured bulk leaf oxygen isotope and functional traits along a climatic stress gradient in a grassland in Tibetan Plateau where drought, excess radiation, and temperature increased from east to west. Enrichment (A18O) in bulk leaf oxygen isotope was used as proxy for time-integrated gs. We found that the leaf water use (A18O and leaf area [LA]) spectrum was independent of the leaf economic spectrum, indicating that coexisting species shifted from high nitrogen use efficiency (high ratio of leaf carbon to nitrogen) and water loss (high LA) in low-stress habitats to high photosynthetic capacity (high leaf nitrogen) and low water loss (low gs) in high-stress habitats. As the stress intensity of climate increases, higher mean and maximum and lower skewness (varying from positive to negative values) of A18O in coexisting species confirmed that the abundance of water-saving species increased to cope with climatic stress, while the greater standard deviation and kurtosis further indicated that climatic stress drove the divergence in gs in coexisting species. This study revealed that coexisting species adopt more diversified water use strategies and the abundance of watersaving species increases to cope with climatic stress, regardless of decreases in overall species abundance. |
| WOS关键词 | LEAF ECONOMICS ; HYDRAULIC TRAITS ; PLANT-RESPONSES ; WATER ; PHYSIOLOGY ; NITROGEN ; CONVERGENCE ; DIVERSITY ; ISOTOPES ; NUTRIENT |
| 资助项目 | National Natural Science Foundation of China[41991234] ; National Natural Science Foundation of China[32001137] ; National Key R&D Program of China[2017YFA0604803] |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000795551800006 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; National Key R&D Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/177244]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Jing; Wen, Xuefa |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing Yanshan Earth Crit Zone Natl Res Stn, Beijing 101408, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 101408, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jing,Wen, Xuefa. Divergence and conservative of stomatal conductance in coexisting species in response to climatic stress in Tibetan Plateau[J]. ECOLOGICAL INDICATORS,2022,138:8. |
| APA | Wang, Jing,&Wen, Xuefa.(2022).Divergence and conservative of stomatal conductance in coexisting species in response to climatic stress in Tibetan Plateau.ECOLOGICAL INDICATORS,138,8. |
| MLA | Wang, Jing,et al."Divergence and conservative of stomatal conductance in coexisting species in response to climatic stress in Tibetan Plateau".ECOLOGICAL INDICATORS 138(2022):8. |
入库方式： OAI收割
来源：地理科学与资源研究所
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