Shifting of the first-order root foraging strategies of Chinese fir (Cunninghamia lanceolata) under varied environmental conditions
文献类型：期刊论文
| 作者 | Liao, Yingchun4; Fan, Houbao4; Wei, Xiaohua1; Wang, Huimin3,5; Shen, Fangfan4; Hu, Liang4; Li, Yanyan4; Fang, Huanying4; Huang, Rongzhen4 |
| 刊名 | TREES-STRUCTURE AND FUNCTION
 |
| 出版日期 | 2023-06-01 |
| 卷号 | N/A |
| 关键词 | First-order root traits Root foraging strategies Environmental gradients Climatic variables Soil nutrients Chinese fir plantations |
| DOI | 10.1007/s00468-023-02394-5 |
| 文献子类 | Article ; Early Access |
| 英文摘要 | Key messageThe first-order root traits are important for nutrients foraging for plants and their foraging strategies can be influenced by the changing of environmental variables.Fine roots are critical for soil resource acquisition by trees. Understanding root traits and their responses to varied environmental conditions is crucial for root resource foraging under environmental alternations. Data on eight first-order root traits including branching ratio, root diameter (RD), specific root length (SRL), specific root area (SRA), root tissue density (RTD), root carbon (C) concentration, root nitrogen (N) concentration, and arbuscular mycorrhizal colonization of roots (AM colonization) were collected along a large environmental gradient to quantify relationships between first-order root traits and environmental contributing factors in Chinese fir (Cunninghamia lanceolata) plantations of Subtropical China. High mean annual precipitation (MAP) significantly increased AM colonization but decreased root C concentration, resulting in shifting towards a conservative foraging strategy of the first-order roots. Soil pH showed positive correlations with AM colonization and root N concentration, but negative correlations with the branching ratio (number of first-order roots/second-order roots), indicating shifting towards an acquisitive foraging strategy when soil becomes more acidic. However, increased soil C: N and soil P resulted in lower root N, lower RTD, and thicker root diameter of the first-order roots. Our study provides evidence that harsh environmental conditions such as drought and acidity resulted in the growth of more root tips (first-order roots), consequently shifting towards an acquisitive foraging strategy. In contrast, locations with more abundant rainfall and more neutral and fertile soils caused thicker and fewer root tips with higher AM colonization, shifting towards a conservative foraging strategy. |
| WOS关键词 | ARBUSCULAR MYCORRHIZAL FUNGI ; PLANT ECONOMICS SPECTRUM ; FINE-ROOT ; ABSORPTIVE ROOTS ; BRANCH ORDER ; TRAITS ; NITROGEN ; SOIL ; GROWTH ; COLONIZATION |
| WOS研究方向 | Forestry |
| WOS记录号 | WOS:000939619600001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/200736]  |
| 专题 | 千烟洲站森林生态系统研究中心_外文论文 |
| 作者单位 | 1.Nanchang Inst Technol, Jiangxi Prov Key Lab Restorat Degraded Ecosyst & W, Nanchang 330099, Peoples R China 2.Jiangxi Prov Key Lab Ecosyst Proc & Informat, Taihe 343725, Peoples R China 3.Univ British Columbia, Dept Earth Environm & Geog Sci, Okanagan Campus, Kelowna, BC V1V 1V7, Canada 4.Nanchang Inst Technol, Coll Water Conservancy & Ecol Engn, Nanchang 330099, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Qianyanzhou Subtrop Forest Ecosyst Res Stn, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liao, Yingchun,Fan, Houbao,Wei, Xiaohua,et al. Shifting of the first-order root foraging strategies of Chinese fir (Cunninghamia lanceolata) under varied environmental conditions[J]. TREES-STRUCTURE AND FUNCTION,2023,N/A. |
| APA | Liao, Yingchun.,Fan, Houbao.,Wei, Xiaohua.,Wang, Huimin.,Shen, Fangfan.,...&Huang, Rongzhen.(2023).Shifting of the first-order root foraging strategies of Chinese fir (Cunninghamia lanceolata) under varied environmental conditions.TREES-STRUCTURE AND FUNCTION,N/A. |
| MLA | Liao, Yingchun,et al."Shifting of the first-order root foraging strategies of Chinese fir (Cunninghamia lanceolata) under varied environmental conditions".TREES-STRUCTURE AND FUNCTION N/A(2023). |
入库方式： OAI收割
来源：地理科学与资源研究所
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