祁连山不同草地类型区土壤有机碳组份的差异

梁冰妍; 徐海燕; 吴晓东; 种碧莹; 甘子鹏; 薛守业

doi:10.3799/dqkx.2022.261

Volume 49 Issue 4

Apr. 2024

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Article Navigation > Earth Science > 2024 > 49(4): 1487-1497

Liang Bingyan, Xu Haiyan, Wu Xiaodong, Chong Biying, Gan Zipeng, Xue Shouye, 2024. Differences of Soil Organic Carbon Components in Different Grassland Types of Qilian Mountain. Earth Science, 49(4): 1487-1497. doi: 10.3799/dqkx.2022.261

Citation:

Liang Bingyan, Xu Haiyan, Wu Xiaodong, Chong Biying, Gan Zipeng, Xue Shouye, 2024. Differences of Soil Organic Carbon Components in Different Grassland Types of Qilian Mountain. Earth Science, 49(4): 1487-1497. doi: 10.3799/dqkx.2022.261

Citation:

Liang Bingyan, Xu Haiyan, Wu Xiaodong, Chong Biying, Gan Zipeng, Xue Shouye, 2024. Differences of Soil Organic Carbon Components in Different Grassland Types of Qilian Mountain. Earth Science, 49(4): 1487-1497. doi: 10.3799/dqkx.2022.261

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Differences of Soil Organic Carbon Components in Different Grassland Types of Qilian Mountain

doi: 10.3799/dqkx.2022.261

1.
School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
2.
Cryosphere Research Station on the Qinghai-Tibet Plateau, State Key Laboratory of Cryospheric Science, Northwest Institute of the Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China

Received Date: 2022-03-03
Available Online: 2024-04-30
Publish Date: 2024-04-25

Abstract

Abstract

In order to determine the composition and stability of soil organic carbon pool in alpine areas, different grassland types (alpine meadow, alpine steppe and alpine swamp meadow) in Qilian Mountain area were selected as the research objects, the heavy and light components in 0-50 cm soil were separated and extracted by layer, and the contents of heavy fraction organic carbon (HFOC) and light fraction organic carbon (LFOC) were determined and analyzed. The results show that the effects of different grassland types on the content and distribution of soil HFOC and LFOC were different, the contents of HFOC and LFOC had obvious vertical changes among soil layers, show the trend of high and low, and there were obvious differences among different regions. The order of LFOC content in different grassland types is alpine swamp meadow > alpine steppe > alpine meadow, The order of soil organic carbon pool stability in different grassland types is alpine meadow > alpine steppe > alpine swamp meadow. Soil pH, moisture content, TC, SOC, TN content and C/N value were significantly correlated with soil HFOC and LFOC content(p < 0.01).In summary, the composition and stability of soil organic carbon pool in Qilian grassland ecosystem were affected by grassland types, soil physical and chemical properties and environmental variables.
- alpine area,
- grassland type,
- heavy fraction organic carbon,
- light fraction organic carbon,
- soil physical and chemical properties,
- environmental geology

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Differences of Soil Organic Carbon Components in Different Grassland Types of Qilian Mountain

doi: 10.3799/dqkx.2022.261

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