دورية أكاديمية
The lower labile carbon of surface soils in Chinese semiarid areas
| العنوان: | The lower labile carbon of surface soils in Chinese semiarid areas |
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| المؤلفون: | Fan Zhang, Jiamin Qi, Congwen Gui, Yilin Zhang, Zheng Wang |
| المصدر: | Acta Agriculturae Scandinavica. Section B, Soil and Plant Science, Vol 73, Iss 1, Pp 34-41 (2023) |
| بيانات النشر: | Taylor & Francis Group, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Plant culture |
| مصطلحات موضوعية: | agricultural system, arid area, characterisation of soc dynamics, hot water extractable organic carbon, loess plateau, natural system, soil management, Plant culture, SB1-1110 |
| الوصف: | Hot water extractable organic carbon (HWOC), the labile carbon component, is often used to indicate soil organic carbon (SOC) dynamics. Nevertheless, few studies have been carried out in arid climate areas which affects our full understanding of HWOC. Here, we investigated the change in HWOC in the topsoil of different ecosystems in the southern part of the Loess Plateau in the semiarid region of China and compared it with that in other regions. The HWOC concentrations of the study area (0-10 cm) were 0.27 ± 0.12 g C kg−1 and 0.19 ± 0.04 g C kg−1 in the natural and agricultural systems respectively, and the HWOC proportions were 1.38 ± 0.38% and 2.18 ± 0.22%. The HWOC concentration and proportion in the study area were much lower than the reported data in other areas, which may be affected by drought conditions. Irrigation could weaken the difference in HWOC between agricultural systems in different regions. Since HWOC is easily lost due to the impact of the arid climate, the soil carbon balance and carbon sequestration in arid and semiarid areas are relatively unstable, indicating that soil management should be improved in combination with water management. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 0906-4710 1651-1913 09064710 |
| Relation: | https://doaj.org/toc/0906-4710; https://doaj.org/toc/1651-1913 |
| DOI: | 10.1080/09064710.2023.2174044 |
| URL الوصول: | https://doaj.org/article/ebeafd6ad42d447684841664a01e7b02 |
| رقم الأكسشن: | edsdoj.beafd6ad42d447684841664a01e7b02 |
| قاعدة البيانات: | Directory of Open Access Journals |
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Full Text Finder | تدمد: | 09064710 16511913 |
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| DOI: | 10.1080/09064710.2023.2174044 |