Orchard Expansion May Diminish Groundwater Replenishment While Amplifying Nitrate Pollution in a Cultivated Loess Critical Zone
文献类型：期刊论文
| 作者 | Niu, Liantao2,3; Jia, Xiaoxu2,3; Yang, Xiaofan1; Yang, Ting7; Turkeltaub, Tuvia6; Binley, Andrew4; Vanderborght, Jan5; Ren, Lidong2,3; Liao, Xiaoyong2,3; Shao, Ming'an2,3 |
| 刊名 | WATER RESOURCES RESEARCH
 |
| 出版日期 | 2025-10-27 |
| 卷号 | 61期号:10页码:e2025WR040349 |
| 关键词 | nitrate leaching groundwater recharge agricultural land-use change soil hydraulic properties earth's critical zone |
| ISSN号 | 0043-1397 |
| DOI | 10.1029/2025WR040349 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Agricultural land use and management changes significantly alter water and nitrate (NO3-) transport in the vadose zone (VZ) of the Earth's Critical Zone (CZ), thereby affecting groundwater recharge and quality. Here, we developed a multi-column modeling approach to estimate recharge and NO3- transport in the cultivated loess CZ of China's Guanzhong Plain (CGP), with a specific focus on the cropland-to-orchard transition. The model also quantified uncertainties in water and NO3- fluxes caused by variability in soil hydraulic parameters (SHPs). Evaluation against observations from 12 sites demonstrate good model performance. Relative to measured SHPs, uncertainties in groundwater recharge and NO3- leaching fluxes ranged from 3% to 86% when using SHPs derived from Rosetta and global data sets, with higher uncertainties in orchards than in croplands. Simulations based on measured SHPs identified the central and eastern CGP as hotpots of groundwater NO3- contamination. The shift from corn-wheat rotation to apple orchards increased NO3- leaching fluxes by 38 times while reducing groundwater recharge by 10%. Under both land-use scenarios, NO3- travel times through the VZ spanned decades to centuries, and the cropland-to-orchard transition extended it by 23 years for NO3- to reach the aquifer. Although this conversion delays NO3- transport to the aquifer, the elevated leaching flux increases the risk of groundwater NO3- pollution, especially in regions with shallow VZs and coarse soil texture. This study highlights the critical need for caution when implementing large-scale cropland-to-orchard conversions in the CGP and provides important insights for groundwater vulnerability assessments in regions with comparable hydrogeological and agricultural conditions. |
| URL标识 | 查看原文 |
| WOS关键词 | LAND-USE CHANGE ; SOIL HYDRAULIC-PROPERTIES ; VADOSE ZONE ; SOLUTE TRANSPORT ; UNSATURATED ZONE ; WINTER-WHEAT ; WATER ; RECHARGE ; NITROGEN ; PLATEAU |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001600774500001 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/217766]  |
| 专题 | 黄河三角洲现代农业工程实验室_外文论文 |
| 通讯作者 | Jia, Xiaoxu; Yang, Xiaofan |
| 作者单位 | 1.Beijing Normal Univ, Fac Geog Sci, Beijing, Peoples R China; 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China; 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Modern Agr Engn Lab, Beijing, Peoples R China; 4.Univ Lancaster, Lancaster Environm Ctr, Lancaster, England; 5.Forschungszentrum Julich, Inst Bioand Geosci, Agrosphere IBG 3, Julich, Germany 6.Ben Gurion Univ Negev, Zuckerberg Inst Water Res, Blaustein Inst Desert Res, Beer Sheva, Israel; 7.Guangdong Acad Sci, Guangzhou Inst Geog, Guangdong Prov Key Lab Remote Sensing & Geog Infor, Guangzhou, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Niu, Liantao,Jia, Xiaoxu,Yang, Xiaofan,et al. Orchard Expansion May Diminish Groundwater Replenishment While Amplifying Nitrate Pollution in a Cultivated Loess Critical Zone[J]. WATER RESOURCES RESEARCH,2025,61(10):e2025WR040349. |
| APA | Niu, Liantao.,Jia, Xiaoxu.,Yang, Xiaofan.,Yang, Ting.,Turkeltaub, Tuvia.,...&Shao, Ming'an.(2025).Orchard Expansion May Diminish Groundwater Replenishment While Amplifying Nitrate Pollution in a Cultivated Loess Critical Zone.WATER RESOURCES RESEARCH,61(10),e2025WR040349. |
| MLA | Niu, Liantao,et al."Orchard Expansion May Diminish Groundwater Replenishment While Amplifying Nitrate Pollution in a Cultivated Loess Critical Zone".WATER RESOURCES RESEARCH 61.10(2025):e2025WR040349. |
入库方式： OAI收割
来源：地理科学与资源研究所
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