Analyzing water uptake of apple trees using isotopic techniques in the Shandong Peninsula, China
Study region: The hilly area of Shandong Peninsula is a pivotal apple-producing region in China. However, the precise water sources utilized by the apple trees for transpiration remain poorly understood in this region. Study focus: Here we quantify the water sources used by apple trees in this area...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Journal of Hydrology: Regional Studies |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581824005020 |
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| author | Tianze Pang Ying Zhao María Poca Jianjun Wang Hongchen Li Jinzhao Liu |
| author_facet | Tianze Pang Ying Zhao María Poca Jianjun Wang Hongchen Li Jinzhao Liu |
| author_sort | Tianze Pang |
| collection | DOAJ |
| description | Study region: The hilly area of Shandong Peninsula is a pivotal apple-producing region in China. However, the precise water sources utilized by the apple trees for transpiration remain poorly understood in this region. Study focus: Here we quantify the water sources used by apple trees in this area using stable isotopic tracing methods. Through on-field studies in a representative apple orchard and subsequent isotopic assessments, the primary water sources tapped by the apple trees were identified in three plots with contrasting soil characteristics and through 5 days of sub daily sampling. New hydrological insights for the region: Our results show that apple trees have a marked preference for soil water centered at the 60 cm depth, with more deep water use at plots without weathered layers. Notably, the isotopic compositions of the xylem water leaned more towards signatures of soil water, rather than immediate irrigation water or groundwater. Given the irrigation water used to be the dominant water source recharging into soil, the weak contribution of irrigation water to plant would be attributed to the high soil evaporation rates during the growth phase, which strongly alter the isotopic composition of irrigation water in shallow soil layers. These insights boosted our comprehension of water sourcing mechanisms in the sloped orchard ecosystems in the Shandong Peninsula and lay the groundwork for deeper exploration into the irrigation ratio to rainwater utilized by apple trees in comparable regions. |
| format | Article |
| id | doaj-art-0f8a2a40f5bb4d56877a932fd0a34e34 |
| institution | Kabale University |
| issn | 2214-5818 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology: Regional Studies |
| spelling | doaj-art-0f8a2a40f5bb4d56877a932fd0a34e342025-01-22T05:42:14ZengElsevierJournal of Hydrology: Regional Studies2214-58182025-02-0157102153Analyzing water uptake of apple trees using isotopic techniques in the Shandong Peninsula, ChinaTianze Pang0Ying Zhao1María Poca2Jianjun Wang3Hongchen Li4Jinzhao Liu5College of Hydraulic and Civil Engineering, Ludong University, Yantai 264025, China; Canadian Centre for Climate Change and Adaptation, University of Prince Edward Island, St. Peters Bay, Prince Edward Island C0A 2A0, CanadaCollege of Hydraulic and Civil Engineering, Ludong University, Yantai 264025, China; Global Institute for Water Security, University of Saskatchewan, Saskatoon, Canada; Corresponding author at: College of Hydraulic and Civil Engineering, Ludong University, Yantai 264025, China.Grupo de Estudios Ambientales, Instituto de Matemática Aplicada San Luis, Universidad Nacional de San Luis, CONICET, San Luis, ArgentinaCollege of Hydraulic and Civil Engineering, Ludong University, Yantai 264025, ChinaCollege of Hydraulic and Civil Engineering, Ludong University, Yantai 264025, ChinaState Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China; Corresponding author.Study region: The hilly area of Shandong Peninsula is a pivotal apple-producing region in China. However, the precise water sources utilized by the apple trees for transpiration remain poorly understood in this region. Study focus: Here we quantify the water sources used by apple trees in this area using stable isotopic tracing methods. Through on-field studies in a representative apple orchard and subsequent isotopic assessments, the primary water sources tapped by the apple trees were identified in three plots with contrasting soil characteristics and through 5 days of sub daily sampling. New hydrological insights for the region: Our results show that apple trees have a marked preference for soil water centered at the 60 cm depth, with more deep water use at plots without weathered layers. Notably, the isotopic compositions of the xylem water leaned more towards signatures of soil water, rather than immediate irrigation water or groundwater. Given the irrigation water used to be the dominant water source recharging into soil, the weak contribution of irrigation water to plant would be attributed to the high soil evaporation rates during the growth phase, which strongly alter the isotopic composition of irrigation water in shallow soil layers. These insights boosted our comprehension of water sourcing mechanisms in the sloped orchard ecosystems in the Shandong Peninsula and lay the groundwork for deeper exploration into the irrigation ratio to rainwater utilized by apple trees in comparable regions.http://www.sciencedirect.com/science/article/pii/S2214581824005020Isotopic tracingIrrigationPlant water sourcesSubsurface structureEcohydrology |
| spellingShingle | Tianze Pang Ying Zhao María Poca Jianjun Wang Hongchen Li Jinzhao Liu Analyzing water uptake of apple trees using isotopic techniques in the Shandong Peninsula, China Journal of Hydrology: Regional Studies Isotopic tracing Irrigation Plant water sources Subsurface structure Ecohydrology |
| title | Analyzing water uptake of apple trees using isotopic techniques in the Shandong Peninsula, China |
| title_full | Analyzing water uptake of apple trees using isotopic techniques in the Shandong Peninsula, China |
| title_fullStr | Analyzing water uptake of apple trees using isotopic techniques in the Shandong Peninsula, China |
| title_full_unstemmed | Analyzing water uptake of apple trees using isotopic techniques in the Shandong Peninsula, China |
| title_short | Analyzing water uptake of apple trees using isotopic techniques in the Shandong Peninsula, China |
| title_sort | analyzing water uptake of apple trees using isotopic techniques in the shandong peninsula china |
| topic | Isotopic tracing Irrigation Plant water sources Subsurface structure Ecohydrology |
| url | http://www.sciencedirect.com/science/article/pii/S2214581824005020 |
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