Species mixing enhances the resistance of Robinia pseudoacacia L. to drought events in semi-arid regions: Evidence from China's Loess Plateau
文献类型：期刊论文
| 作者 | Chen, Meng3; Zhang, Xu3; Li, Ming3; Cao, Yang1,2 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2023-04-15 |
| 卷号 | 869页码:11 |
| ISSN号 | 0048-9697 |
| 关键词 | Mixing plantations Mixing effect Climate-growth relationship Drought resilience Forest management Semi-arid regions |
| DOI | 10.1016/j.scitotenv.2023.161796 |
| 通讯作者 | Cao, Yang(yang.cao@nwsuaf.edu.cn) |
| 英文摘要 | As a potential planting strategy, species mixing increases biomass production, improves ecosystem service functions, and mitigates climate change. However, the effect of species mixing on tree growth and drought resilience in semi-arid areas remains unclear. Hence, we established tree-ring chronologies of Robinia pseudoacacia L. in pure Robinia pseudoacacia L. plantation (RP) and mixed plantations with Hippophae rhamnoides L. and Populus simonii Carr. at differ-ent proportions of 8:2 and 5:5 (RH 8:2, RH 5:5, RC 8:2, RC 5:5) in the typical semi-arid region of the Loess Plateau (LP), China. The mean annual growth, climate-growth relationships, and tree resilience (Rs) to drought, including resistance (Rt) and recovery (Rc), were analyzed using dendrochronological methods. The results showed that the growth of R. pseudoacacia L. in mixed plantations was lower when Palmer Drought Severity Index (PDSI) >0, but much higher than that in monoculture under drought stress (PDSI <0 or after drought event). Meanwhile, the relationship between PDSI and tree growth was significantly positive in the pure plantation, but weakened in the mixed plantations, indicat-ing that species mixing alleviated drought stress to some extent. The resilience results showed that, although the Rc was higher in monoculture after drought events, species mixing could enhance Rt and mitigate the growth decline of R. pseudoacacia L. during drought events. Moreover, the Rt varied significantly among mixing species and propor-tions and was also affected by the magnitude and timing of drought. The RC 5:5 and RH 8:2 had higher resistance to moderate and severe drought stress. However, RC 8:2 and RH 5:5 could cope better with mild drought stress. These results indicate that species mixing can alleviate drought stress and improve the drought resistance. Therefore, it is necessary to expand species mixing to maximize plantation functions and minimize the potential impacts of warming and drought in semi-arid regions. |
| WOS关键词 | ECOSYSTEM PRODUCTIVITY ; GROWTH RESILIENCE ; TREE MORTALITY ; CLIMATE-CHANGE ; NORWAY SPRUCE ; CAMBIAL REACTIVATION ; PINUS-SYLVESTRIS ; RADIAL-GROWTH ; MIXED STANDS ; ABIES-ALBA |
| 资助项目 | National Natural Science Foundation of China[41977418] ; National Natural Science Foundation of China[42130717] ; National Key Research and Development Program of China[2022YFF1300405] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000924966700001 |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/190091]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Cao, Yang |
| 作者单位 | 1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess Pl, Yangling 712100, Shaanxi, Peoples R China 3.Northwest A&F Univ, Coll forestry, Yangling 712100, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Meng,Zhang, Xu,Li, Ming,et al. Species mixing enhances the resistance of Robinia pseudoacacia L. to drought events in semi-arid regions: Evidence from China's Loess Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,869:11. |
| APA | Chen, Meng,Zhang, Xu,Li, Ming,&Cao, Yang.(2023).Species mixing enhances the resistance of Robinia pseudoacacia L. to drought events in semi-arid regions: Evidence from China's Loess Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,869,11. |
| MLA | Chen, Meng,et al."Species mixing enhances the resistance of Robinia pseudoacacia L. to drought events in semi-arid regions: Evidence from China's Loess Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 869(2023):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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