Declining Crop Yield Sensitivity to Drought and Its Environmental Drivers in the North China Plain
文献类型：期刊论文
| 作者 | Wang, Zhipeng1; Cao, Yanan3; Liu, Fei1; Niu, Ben2; Xi, Zengfu1; Zheng, Yunpu1 |
| 刊名 | SUSTAINABILITY
 |
| 出版日期 | 2025-12-02 |
| 卷号 | 17期号:23页码:10798 |
| 关键词 | wheat yield SPEI drought sensitivity environmental driver North China Plain |
| DOI | 10.3390/su172310798 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | Drought poses a severe threat to global food security and agricultural sustainability. Despite substantial efforts to enhance crop yield tolerance to drought, the effectiveness varies spatiotemporally across different environments and management practices. In this study, we compiled long-term grain yield data alongside multiple environmental indicators, including the multiscalar Standardized Precipitation Evapotranspiration Index (SPEI), climate, soil moisture (SWC), groundwater storage (GWS), nitrogen fertilizer (Nfer), and atmospheric CO2 records. We aim to assess the variability and drivers of grain yield sensitivity to drought across the North China Plain. We found a significantly positive correlation between the interannual variability of wheat yield and SPEI over the 9-month scale, suggesting that wheat yield variations were sensitive to medium-term (>9 month) and long-term (>22 month) drought. Surprisingly, the sensitivity (S-SPEI: correlation coefficient between wheat yield variations and SPEI) of wheat yield to medium-term and long-term drought has declined substantially in the past three decades. The effects of SWC, GWS, Nfer, and CO2 on S-SPEI varied situationally as the duration of the drought extended. Typically, SWC primarily governed short-term (<10 month) S-SPEI, with a relative weight of 38.9 +/- 3.2% in explaining S-SPEI variability. The decrease in medium-term S-SPEI was at the expense of GWS, which contributed a relative weight of 33.7 +/- 12.3% in explaining the variations. SWC, CO2, and Nfer jointly dominated long-term S-SPEI variations, and the cumulative relative weight as high as 84.0 +/- 6.2%. Specifically, Nfer notably enhanced the S-SPEI during prolonged drought, and the anticipated enriched CO2-induced fertilizer effect and water-saving effect in decreasing S-SPEI were evident during long-term drought, contrasting with CO2 enrichment-enhanced yield reductions observed in short-term drought. Our findings highlight that prediction-based practices to mitigate drought-induced yield loss and enhance agricultural sustainability, including water conservation and fertilizer addition, may differ radically depending on drought episodes. |
| URL标识 | 查看原文 |
| WOS关键词 | WATER-USE EFFICIENCY ; CO2 ; NITROGEN ; VEGETATION ; IMPACT ; GROWTH ; PRECIPITATION ; INCREASES |
| WOS研究方向 | Science & Technology - Other Topics ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001636389200001 |
| 出版者 | MDPI |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/219383]  |
| 专题 | 拉萨站高原生态系统研究中心_外文论文 |
| 通讯作者 | Xi, Zengfu; Zheng, Yunpu |
| 作者单位 | 1.Hebei Univ Engn, Sch Water Conservancy & Hydropower, Hebei Key Lab Intelligent Water Conservancy, Handan 056038, Peoples R China; 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China 3.Hebei Univ Engn, Sch Earth Sci & Engn, Handan 056038, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Wang, Zhipeng,Cao, Yanan,Liu, Fei,et al. Declining Crop Yield Sensitivity to Drought and Its Environmental Drivers in the North China Plain[J]. SUSTAINABILITY,2025,17(23):10798. |
| APA | Wang, Zhipeng,Cao, Yanan,Liu, Fei,Niu, Ben,Xi, Zengfu,&Zheng, Yunpu.(2025).Declining Crop Yield Sensitivity to Drought and Its Environmental Drivers in the North China Plain.SUSTAINABILITY,17(23),10798. |
| MLA | Wang, Zhipeng,et al."Declining Crop Yield Sensitivity to Drought and Its Environmental Drivers in the North China Plain".SUSTAINABILITY 17.23(2025):10798. |
入库方式： OAI收割
来源：地理科学与资源研究所
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