Effects of degradation succession of alpine wetland on soil organic carbon and total nitrogen in the Yellow River source zone, west China

Lin, Chunying; Li, Xilai; Zhang, Jing; Sun, Huafang; Zhang, Juan; Han, Hua; Wang, Qihua; Ma, C.; Li, Chengyi; Zhang, Yuxing; Ma, Xue-qian

doi:10.1007/s11629-020-6117-0

Cited by 13 publications

(12 citation statements)

References 29 publications

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“…In the present study, among these above-mentioned dominant factors, only SWC indirectly affected [C] leaf of L. virgaurea through three paths, namely SOC: STN path, SOC-STP path, and SOC-pH path (Figure 4A). The first path can be explained: as an important physical property of soil, soil moisture often has an important impact on other physical and chemical properties (Lin et al, 2021). For instance, with the increase of SWC, soil oxygen concentration and microbial activity will decrease (Borken and Matzner, 2009), which, in turn, will decrease the mineralization rate, as reflected by SOC: STN (Swift et al, 1979;Sanaullah et al, 2012).…”

Section: Mechanisms For the Dominant Factors Affecting [C] Leaf Across Elevationsmentioning

confidence: 99%

“…For instance, with the increase of SWC, soil oxygen concentration and microbial activity will decrease (Borken and Matzner, 2009), which, in turn, will decrease the mineralization rate, as reflected by SOC: STN (Swift et al, 1979;Sanaullah et al, 2012). The other two paths can also be explained: an increase in SWC can lead to the cracking and dispersal of soil aggregates, which in turn dissolve and release forms of organic matter that are difficult for microorganisms to use, thus increasing SOC (Liu et al, 2014;Lin et al, 2021). With a change in SOC, pH and STP will also be affected (Figure 4A).…”

Section: Mechanisms For the Dominant Factors Affecting [C] Leaf Across Elevationsmentioning

confidence: 99%

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Using Leaf Ecological Stoichiometry to Direct the Management of Ligularia virgaurea on the Northeast Qinghai-Tibetan Plateau

Cui

Adamowski

et al. 2022

Front. Environ. Sci.

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Leaf ecological stoichiometry not only reflects the plasticity and adaptability, but also the growth of plants within environments where temperature, precipitation, and soil properties vary across an elevation gradient. Ligularia virgaurea (Maxim.) Mattf. ex Rehder & Kobuski — an invasive poisonous plant — is common in the northeast portion of China’s Qinghai-Tibetan Plateau and its presence greatly affects the native ecosystem. Based on L. virgaurea leaf carbon ([C]leaf), nitrogen ([N]leaf) and phosphorus ([P]leaf) concentrations, and their ratios, the species’ coping strategies across an elevation gradient (2,600 m, 3,000 m, and 3,300 m) were identified, and served to inform the development of improved management strategies. Mean [C]leaf, [N]leaf and [P]leaf in L. virgaurea across all elevations were 413.14 g·kg−1, 22.76 g·kg−1, and 1.34 g·kg−1, respectively, while [C]leaf: [N]leaf, [C]leaf: [P]leaf, and [N]leaf: [P]leaf were 18.27, 328.76, and 17.93. With an increase in precipitation and decrease in temperature from 2,600 m to 3,000 m–3,300 m, [C]leaf, [C]leaf: [N]leaf and [C]leaf: [P]leaf of L. virgaurea decreased at first and then increased. The [N]leaf and [P]leaf gradually increased, whereas [N]leaf: [P]leaf showed little change. Although temperature, precipitation and soil water content were the main factors affecting the ecological stoichiometry of L. virgaurea leaves, their roles in influencing leaf elements were different. The [C]leaf was mainly influenced by soil water content, [N]leaf by temperature and soil water content, and [P]leaf by all of them. With potential future climate change in the study area, L. virgaurea may grow faster than at present, although soil P may still be a growth-limiting element. As L. virgaurea can reduce plant diversity and the quality of forage, while increasing biomass, management of L. virgaurea should receive greater attention.

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Section: Mechanisms For the Dominant Factors Affecting [C] Leaf Across Elevationsmentioning

confidence: 99%

Section: Mechanisms For the Dominant Factors Affecting [C] Leaf Across Elevationsmentioning

confidence: 99%

Using Leaf Ecological Stoichiometry to Direct the Management of Ligularia virgaurea on the Northeast Qinghai-Tibetan Plateau

Cui

Adamowski

et al. 2022

Front. Environ. Sci.

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“…Wetlands are generally classified as a transitional ecosystem between aquatic and terrestrial ecosystems. They play a unique ecological role in the maintenance of biodiversity (Aber et al, 2012;Ren et al, 2013;Lin et al, 2021). Wetlands function as the "kidney of the Earth" by providing the ecological services of nutrient cycling, pollutant filtration, flood abatement, and carbon sequestration (Tang et al, 2011;Zhang et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Wetland degradation may modify soil and microbial performance (Ren et al, 2013). In the alpine wetland of the Yellow River source zone in western China, soil total organic carbon (TOC) and total nitrogen (TN) decreased following wetland degradation Lin et al, 2021). An increase in soil pH was also observed in the Jiuduansha wetlands along with the degradation stages (Tang et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Alpine wetlands are fragile ecosystems characterized by high altitudes and low temperatures. They harbor unique alpine biodiversity, which is at a high risk of degradation due to climate change, drainage, and overgrazing (Wu et al, 2015;Lin et al, 2021). Degradation on the Tibetan Plateau can be followed by large-scale wetland ecosystem succession, which is often accompanied by a degradation gradient from typical wetland to wet meadow, to typical alpine meadow, to grassland, and sometimes to desert (Ren et al, 2013;Wu et al, 2015;Shen et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Soil Water Content Shapes Microbial Community Along Gradients of Wetland Degradation on the Tibetan Plateau

Zhang

Yan

et al. 2022

Front. Microbiol.

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Soil microbes are important components in element cycling and nutrient supply for the development of alpine ecosystems. However, the development of microbial community compositions and networks in the context of alpine wetland degradation is unclear. We applied high-throughput 16S rRNA gene amplicon sequencing to track changes in microbial communities along degradation gradients from typical alpine wetland (W), to wet meadow (WM), to typical meadow (M), to grassland (G), and to desert (D) in the Zoige alpine wetland region on the Tibetan Plateau. Soil water content (SWC) decreased as wetland degradation progressed (79.4 and 9.3% in W and D soils, respectively). Total organic carbon (TOC), total nitrogen (TN), and total phosphorus (TP) increased in the soils of WM, and then decreased with alpine wetlands degradation from WM to the soils of M, G, and D, respectively. Wetland degradation did not affect microbial community richness and diversity from W soils to WM, M, and G soils, but did affect richness and diversity in D soils. Microbial community structure was strongly affected by wetland degradation, mainly due to changes in SWC, TOC, TN, and TP. SWC was the primary soil physicochemical property influencing microbial community compositions and networks. In wetland degradation areas, Actinobacteriota, Acidobacteriota, Cholorflexi, and Proteovacteria closely interacted in the microbial network. Compared to soils of W, WM, and M, Actinobacteriota played an important role in the microbial co-occurrence network of the G and D soils. This research contributes to our understanding of how microbial community composition and networks change with varied soil properties during degradation of different alpine wetlands.

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Shear resistance characteristics and influencing factors of root–soil composite on an alpine metal mine dump slope with different recovery periods

Pang,

Liang,

Liu

et al. 2024

J. Mt. Sci.

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Effects of degradation succession of alpine wetland on soil organic carbon and total nitrogen in the Yellow River source zone, west China

Cited by 13 publications

References 29 publications

Using Leaf Ecological Stoichiometry to Direct the Management of Ligularia virgaurea on the Northeast Qinghai-Tibetan Plateau

Using Leaf Ecological Stoichiometry to Direct the Management of Ligularia virgaurea on the Northeast Qinghai-Tibetan Plateau

Soil Water Content Shapes Microbial Community Along Gradients of Wetland Degradation on the Tibetan Plateau

Shear resistance characteristics and influencing factors of root–soil composite on an alpine metal mine dump slope with different recovery periods

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