Quantitative analysis of nonlinear climate change impact on drought based on the standardized precipitation and evapotranspiration index
文献类型：期刊论文
| 作者 | Zhao, Ruxin1; Wang, Huixiao1; Chen, Ji2; Fu, Guobin3; Zhan, Chesheng4,5 ; Yang, Huicai6
|
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2021-02-01 |
| 卷号 | 121页码:16 |
| 关键词 | Climate change Nonlinear change SPEI Relative contribution Drought |
| ISSN号 | 1470-160X |
| DOI | 10.1016/j.ecolind.2020.107107 |
| 通讯作者 | Wang, Huixiao(huixiaowang@bnu.edu.vn) |
| 英文摘要 | Exploring the impact of climate change on drought under changing environmental conditions is crucial for agriculture, ecology, and human society. To evaluate the role of climate change on drought, this study selected the Songnen Plain (SNP) in Northeast China as a study area in which to quantify the relative contributions of climatic variables to the drought trend in accordance with the Standardized Precipitation and Evapotranspiration Index (SPEI). A series of SPEI-based numerical experiments, using combinations of observational and nonlinear detrended climatic variable data series, was used as a synthetic approach with which to analyze the relative impact of the individual climatic variables. Results indicated that drought on the SNP has been mitigated marginally during 1961-2016, mainly during spring, winter, the growing season, and on the annual timescale. Significant trends were detected in relation to temperature, sunshine duration, and wind speed, and these variables had differing roles in drought evolution. An increasing trend in temperature was found to aggravate drought tendency at all investigated timescales; however, decreasing trends in net radiation and wind speed offset the drought tendency caused by rising temperature. The positive contribution of wind speed was larger than the negative contribution of temperature, especially in areas around 46 degrees N. Although the change of precipitation was not significant, it promoted drought mitigation on the SNP in spring, winter, the growing season, and on the annual timescale. The analysis framework used in this study was shown useful for improving understanding of the relationship between climate change and drought evolution, and it could prove helpful in providing rational and regulatory policy strategies regarding drought relief. |
| WOS关键词 | SONGHUA RIVER-BASIN ; SPATIOTEMPORAL VARIATIONS ; SONGNEN PLAIN ; POTENTIAL EVAPOTRANSPIRATION ; CROP EVAPOTRANSPIRATION ; SOIL-MOISTURE ; CHINA ; TRENDS ; VARIABILITY ; EVAPORATION |
| 资助项目 | National Key Research and Development Program of China[2017YFC0404603] ; National Natural Science Foundation of China[51779009] ; 111 Project[B18006] |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000604859400002 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; 111 Project |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/136543]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Huixiao |
| 作者单位 | 1.Beijing Normal Univ, Coll Water Sci, Beijing Key Lab Urban Hydrol Cycle & Sponge City, Beijing 100875, Peoples R China 2.Univ Hong Kong, Dept Civil Engn, Pokfulam, Hong Kong, Peoples R China 3.CSIRO Land & Water, Private Bag 5, Wembley, WA 6913, Australia 4.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 5.Chinese Acad Sci, Yucheng Comprehens Expt Stn, Beijing 100101, Peoples R China 6.Hebei GEO Univ, Sch Land Resources & Urban & Rural Planning, Shijiazhuang 050000, Hebei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Ruxin,Wang, Huixiao,Chen, Ji,et al. Quantitative analysis of nonlinear climate change impact on drought based on the standardized precipitation and evapotranspiration index[J]. ECOLOGICAL INDICATORS,2021,121:16. |
| APA | Zhao, Ruxin,Wang, Huixiao,Chen, Ji,Fu, Guobin,Zhan, Chesheng,&Yang, Huicai.(2021).Quantitative analysis of nonlinear climate change impact on drought based on the standardized precipitation and evapotranspiration index.ECOLOGICAL INDICATORS,121,16. |
| MLA | Zhao, Ruxin,et al."Quantitative analysis of nonlinear climate change impact on drought based on the standardized precipitation and evapotranspiration index".ECOLOGICAL INDICATORS 121(2021):16. |
入库方式： OAI收割
来源：地理科学与资源研究所
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