The vulnerability of ecosystem structure in the semi-arid area revealed by the functional trait networks
文献类型：期刊论文
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| 作者 | Gao, Dexin; Wang, Shuai; Wei, Fangli ; Wu, Xutong; Zhou, Sha; Wang, Lixin; Li, Zidong; Chen, Peng; Fu, Bojie
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| 刊名 | ECOLOGICAL INDICATORS
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| 出版日期 | 2022-06 |
| 卷号 | 139期号:0页码:108894 |
| 关键词 | USE EFFICIENCY VARIABILITY COMMUNITIES DRYLANDS WATER |
| ISSN号 | 1470-160X |
| 英文摘要 | The ecosystems were characterized by complex, nonlinear interactions determined by different plant functional traits. The characteristics of the multiple relationships between ecosystem functional traits affected the vulnerability to drought. A three-level network analysis on instead of the network metrics, relationships among inter-components, and essential traits was conducted in dryland ecosystems of China. The new network of functional traits included leaf, root, and biomass components was constructed to simulate different aridity conditions. Results show that the multiple relationships of functional traits that co-regulated ecosystem biomass differ along an aridity gradient. The highest network modularity and degree centrality were observed in the semiarid ecosystems indicating low integration and high sensitivity of semi-arid ecosystems (269% and 23.7% higher than in dry sub-humid site, and 142% and 51.1% higher than arid sites). The leaf quantity strongly affected the connection between functional traits at the semi-arid zone. The semi-arid areawas found to have relatively low resistance to environmental change because of low integration and high sensitivity of the ecosystem structure at that site. An increase of degree centrality of the root traits and trade-off relationships between roots and leaves indicated greater allocation of resources by vecgetation to underground components by the arid ecosystems to increase water absorption. The study reveals the complex relationships between leaf, root, and biomass components, and the essential traits of the ecosystem. It enhanced understanding of the vulnerability of semi-arid ecosystems to environmental change. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47361]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 通讯作者 | Wang, Shuai |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 2.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China 3.Indiana Univ Purdue Univ Indianapolis IUPUI, Dept Earth Sci, Indianapolis, IN 46202 USA |
| 推荐引用方式 GB/T 7714 | Gao, Dexin,Wang, Shuai,Wei, Fangli,et al. The vulnerability of ecosystem structure in the semi-arid area revealed by the functional trait networks, The vulnerability of ecosystem structure in the semi-arid area revealed by the functional trait networks.pdf[J]. ECOLOGICAL INDICATORS,2022,139(0):108894. |
| APA | Gao, Dexin.,Wang, Shuai.,Wei, Fangli.,Wu, Xutong.,Zhou, Sha.,...&Fu, Bojie.(2022).The vulnerability of ecosystem structure in the semi-arid area revealed by the functional trait networks.ECOLOGICAL INDICATORS,139(0),108894. |
| MLA | Gao, Dexin,et al."The vulnerability of ecosystem structure in the semi-arid area revealed by the functional trait networks".ECOLOGICAL INDICATORS 139.0(2022):108894. |
入库方式： OAI收割
来源：生态环境研究中心
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