Have China's drylands become wetting in the past 50 years?
文献类型：期刊论文
| 作者 | Zhang, Yu; Zhang, Yangjian; Cheng, Liang; Cong, Nan; Zheng, Zhoutao; Huang, Ke; Zhang, Jianshuang; Zhu, Yixuan; Gao, Jie; Sun, Yihan |
| 刊名 | JOURNAL OF GEOGRAPHICAL SCIENCES
 |
| 出版日期 | 2023 |
| 卷号 | 33期号:1页码:99-102 |
| ISSN号 | 1009-637X |
| 关键词 | China drylands drying or wetting trend Standard Precipitation Evapotranspiration Index (SPEI) drought aridity |
| DOI | 10.1007/s11442-022-2067-5 |
| 文献子类 | J |
| 英文摘要 | Recently, whether drylands of Northwest China (NW) have become wetting has been attracting surging attentions. By comparing the Standard Precipitation Evapotranspiration Indices (SPEI) derived from two different potential evapotranspiration estimates, i.e., the Thornthwaite algorithm (SPEI_th) and the Penman-Monteith equation (SPEI_pm), we try to resolve the controversy. The analysis indicated that air temperature has been warming significantly at a rate of 0.4? decade(-1) in the last five decades and the more arid areas are more prone to becoming warmer. Annual precipitation of the entire study area increased insignificantly by 3.6 mm decade(-1) from 1970 to 2019 but NW presented significantly increasing trends. Further, the SPEI_th and SPEI_pm demonstrated similar wetting-drying-wetting trends (three phases) in China's drylands during 1970-2019. The common periodical signals in the middle phase were identified both by SPEI_th and SPEI_pm wavelet analysis. Analysis with different temporal intervals can lead to divergent or even opposite results. The attribution analysis revealed that precipitation is the main climatic factor driving the drought trend transition. This study hints that the wetting trend's direction and magnitude hinge on the targeted temporal periods and regions. |
| WOS关键词 | ASIAN SUMMER MONSOON ; POTENTIAL EVAPOTRANSPIRATION ; WAVELET COHERENCE ; CLIMATE-CHANGE ; DROUGHT ; PRECIPITATION ; TRENDS ; DRY ; CLASSIFICATION ; VARIABILITY |
| WOS研究方向 | Physical Geography |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000911974900006 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/188640]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 作者单位 | 1.University of Copenhagen 2.Beijing Normal University 3.University of Chinese Academy of Sciences, CAS 4.Institute of Geographic Sciences & Natural Resources Research, CAS 5.Chinese Academy of Sciences |
| 推荐引用方式 GB/T 7714 | Zhang, Yu,Zhang, Yangjian,Cheng, Liang,et al. Have China's drylands become wetting in the past 50 years?[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2023,33(1):99-102. |
| APA | Zhang, Yu.,Zhang, Yangjian.,Cheng, Liang.,Cong, Nan.,Zheng, Zhoutao.,...&Sun, Yihan.(2023).Have China's drylands become wetting in the past 50 years?.JOURNAL OF GEOGRAPHICAL SCIENCES,33(1),99-102. |
| MLA | Zhang, Yu,et al."Have China's drylands become wetting in the past 50 years?".JOURNAL OF GEOGRAPHICAL SCIENCES 33.1(2023):99-102. |
入库方式： OAI收割
来源：地理科学与资源研究所
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