Age- and climate- related water use patterns of apple trees on China's Loess Plateau
文献类型：期刊论文
| 作者 | Wang, Shaofei2,3; An, Juan1; Zhao, Xining4,5; Gao, Xiaodong4,5; Wu, Pute4,5; Huo, Gaopeng2,3; Robinson, Brett H.6 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2020-03-01 |
| 卷号 | 582页码:13 |
| 关键词 | Water uptake patterns Shallow soil water Deep soil water Stable isotopes Artificial isotopes |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2019.124462 |
| 通讯作者 | Zhao, Xining(zxn@nwafu.edu.cn) |
| 英文摘要 | The Loess Plateau of China is a major apple-cultivating region, but much of the Plateau is water-limited, and the expansion of apple-growing is putting pressure on soil water resources. Plants' water consumption patterns have been intensively studied to facilitate formulation of robust agricultural strategies, but previous studies have generally applied indirect methods to characterize their water use. Moreover, the few studies that have applied direct (isotopic) methods have mostly focused on shallow (0-200 cm) soil layers, usually in stands of a single age or single climatic region. To avoid these limitations, we have investigated the primary water sources of apple trees of three ages (10, 15 and 22 years) in semiarid and semihumid climatic regions of the Plateau using both natural stable isotopic signatures (delta H-2 values) and injections of (H2O)-H-2 into deep soil layers. We found that water content in apple orchards' soil decreased with increases in depth and stand age, and was higher in the semihumid area than in the semiarid area. Nevertheless, patterns of apple trees' water uptake from shallow (0-300 cm) soil layers were similar in the two climatic regions and the main water sources became shallower with increases in stand age. However, water uptake from deep (400-500 cm) soil layers was also detected, particularly in the blossom and young fruit stage in apple orchards of the semiarid area. Moreover, older trees absorbed more water from these layers than younger trees in the semiarid area (but not in the semihumid area) throughout the growing season. Excessive consumption of deep soil water inevitably results in deep soil drying and severely threatens the sustainability of apple cultivation. Our work suggests that it is necessary to take actions (e.g. supplementary irrigation, landscaping and mulching combinations) to reduce the proportion of deep soil water used by apple trees to prevent the development of dried soil layers. It also highlights the need to assess uptake patterns of plants at multiple developmental stages and ages to identify times when and places where interventions may be required or most effective. |
| WOS关键词 | EXTREME NATURAL DROUGHT ; SOIL-WATER ; VEGETATION RESTORATION ; GROUNDWATER RECHARGE ; STABLE-ISOTOPES ; DESERT SHRUBS ; RAIN-FOREST ; DEPTH ; ORCHARDS ; STRATEGIES |
| 资助项目 | National Key Research and Development Program[2016YFC0400204] ; National Natural Science Foundation of China[41571506] ; National Natural Science Foundation of China[41771316] ; National Natural Science Foundation of China[51579212] ; Integrative Science-Technology Innovation Engineering Project of Shaanxi[2016KTZDNY-01-03] ; Young-Talent Nurturing program of the Northwest AF University |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000517663700061 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key Research and Development Program ; National Natural Science Foundation of China ; Integrative Science-Technology Innovation Engineering Project of Shaanxi ; Young-Talent Nurturing program of the Northwest AF University |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/133154]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhao, Xining |
| 作者单位 | 1.Linyi Univ, Coll Resources & Environm, Inst Water & Soil Conservat & Environm Protect, Shandong Prov Key Lab Water & Soil Conservat & En, Linyi 276005, Shandong, Peoples R China 2.Northwest A&F Univ, Key Lab Agr Soil & Water Engn Arid & Semiarid Are, Minist Educ, Yangling 712100, Shaanxi, Peoples R China 3.Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China 4.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 5.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 6.Univ Canterbury, Sch Phys & Chem Sci, Canterbury, New Zealand |
| 推荐引用方式 GB/T 7714 | Wang, Shaofei,An, Juan,Zhao, Xining,et al. Age- and climate- related water use patterns of apple trees on China's Loess Plateau[J]. JOURNAL OF HYDROLOGY,2020,582:13. |
| APA | Wang, Shaofei.,An, Juan.,Zhao, Xining.,Gao, Xiaodong.,Wu, Pute.,...&Robinson, Brett H..(2020).Age- and climate- related water use patterns of apple trees on China's Loess Plateau.JOURNAL OF HYDROLOGY,582,13. |
| MLA | Wang, Shaofei,et al."Age- and climate- related water use patterns of apple trees on China's Loess Plateau".JOURNAL OF HYDROLOGY 582(2020):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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