Elevation Alone Alters Leaf N and Leaf C to N Ratio of Picea crassifolia Kom. in China’s Qilian Mountains

Niu, Yalin; Kang, Jianfang; Su, Haohai; Adamowski, Jan; Biswas, Asim; Cao, Jianjun

doi:10.3390/f12101325

Cited by 7 publications

(6 citation statements)

References 72 publications

(117 reference statements)

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“…In the study area, soil properties differ significantly with elevation ( Tables 1 , 2 ). Similar results were reported by Cao et al ( 2020 ) and Niu et al ( 2021 ), who found contrasting soil nutrient contents with elevation in the Qilian Mountains. The differences in soil properties may be from the variations in solar radiation, temperature, and precipitation at different elevations (Qin et al, 2022 ).…”

Section: Discussionsupporting

confidence: 91%

Response of leaf stoichiometry of Potentilla anserina to elevation in China's Qilian Mountains

Zhang

Qi²,

Cao³

et al. 2022

Front. Plant Sci.

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Plants adapt to changes in elevation by regulating their leaf ecological stoichiometry. Potentilla anserina L. that grows rapidly under poor or even bare soil conditions has become an important ground cover plant for ecological restoration. However, its leaf ecological stoichiometry has been given little attention, resulting in an insufficient understanding of its environmental adaptability and growth strategies. The objective of this study was to compare the leaf stoichiometry of P. anserina at different elevations (2,400, 2,600, 2,800, 3,000, 3,200, 3,500, and 3,800 m) in the middle eastern part of Qilian Mountains. With an increase in elevation, leaf carbon concentration [(C)leaf] significantly decreased, with the maximum value of 446.04 g·kg−1 (2,400 m) and the minimum value of 396.78 g·kg−1 (3,500 m). Leaf nitrogen concentration [(N)leaf] also increased with an increase in elevation, and its maximum and minimum values were 37.57 g·kg−1 (3,500 m) and 23.71 g·kg−1 (2,800 m), respectively. Leaf phosphorus concentration [(P)leaf] was the highest (2.79 g·kg−1) at 2,400 m and the lowest (0.91 g·kg−1) at 2,800 m. The [C]leaf/[N]leaf decreased with an increase in elevation, while [N]leaf/[P]leaf showed an opposite trend. The mean annual temperature, mean annual precipitation, soil pH, organic carbon, nitrogen, and phosphorus at different elevations mainly affected [C]leaf, [N]leaf, and [P]leaf. The growth of P. anserina in the study area was mainly limited by P, and this limitation was stronger with increased elevation. Progressively reducing P loss at high elevation is of great significance to the survival of P. anserina in this specific region.

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Section: Discussionsupporting

confidence: 91%

Response of leaf stoichiometry of Potentilla anserina to elevation in China's Qilian Mountains

Zhang

Qi²,

Cao³

et al. 2022

Front. Plant Sci.

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“…[P] leaf does not tell the full story and environmental factors should be introduced as auxiliary evaluation criteria to further study the impact of nutrient restriction on L. virgaurea (Güsewell, 2010;Batjes, 2014;Niu et al, 2021).…”

Section: Implications For Grassland Managementmentioning

confidence: 99%

“…Many studies on plants' ecological stoichiometry have followed. Plant ecological stoichiometry distribution patterns and their driving factors have been investigated at the regional scale (Sardans et al, 2011;Cao et al, 2020;Liu et al, 2021;Niu et al, 2021), and between different vegetation types (He et al, 2019;Qin et al, 2021). Differences in ecological stoichiometry have been noted in different plant organs (Zhang et al, 2017;Hu et al, 2018;Zhang et al, 2021), and under the influence of different disturbances: e.g., shifts in soil moisture or nutrient content, invasive plant species, land degradation, and the implementation of various ecological recovery measures (Hu et al, 2018;Ouyang and Norton, 2019;Jing et al, 2020).…”

Section: Introductionmentioning

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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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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“…(Qilian juniper) and Picea crassifolia (Qinghai spruce), where Qinghai spruce is the dominant species. Moving further up to an elevation of 2900-3000m, the vegetation shifts to shrubs, mainly featuring Potentilla fruticosa (cinquefoil) as the primary species [18][19][20][21][22][23][24][25][26][27][28][29].…”

Section: Description Of the Study Areamentioning

confidence: 99%

The Influence of Different Vegetation Types on Soil C, N, P Content, and Their Stoichiometry in the Eastern Qilian Mountains' Binggou River Basin

2024

AJEE

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To investigate the impact of vegetation types on the ecological stoichiometry of soil carbon, nitrogen, and phosphorus, and to reveal the nutrient limitation and cycling patterns in the terrestrial ecosystem of a tributary, Quanshui River, in the upper reaches of the Shiyang River. The study focused on the marshland of Quanshui River, shrubland of Iris lacteal Pall and Potentilla fruticosa, and the forest of Picea crassifolia. The analysis covered the characteristics of soil organic carbon (SOC), total nitrogen (TN), total phosphorus (TP) content, and stoichiometric ratios in the 0-60cm soil depth across different vegetation types. The results indicated that: (1) In the 0-60cm soil layer, SOC was highest in shrubland, followed by forest and grassland. TN was highest in grassland, followed by forest and shrubland. In the 0-30cm soil layer, grassland exhibited significantly higher TP content compared to forest and shrubland. SOC, TN, and TP content in forest, grassland, and shrubland were higher in the 0-10cm layer compared to the 10-20cm layer. ( 2) Soil C:N, C:P, and N:P ratios were significantly influenced by different vegetation types. The C:N and C:P ratios were highest in shrubland, followed by forest and grassland. The N:P ratio was highest in grassland, followed by forest and shrubland. The vegetation growth in Quanshui River was found to be more limited by soil nitrogen than phosphorus. Therefore, based on the actual conditions of vegetation types, the rational application of nitrogen and phosphorus fertilizers is recommended to enhance nutrient retention in the soil and maintain ecological balance.

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Elevation Alone Alters Leaf N and Leaf C to N Ratio of Picea crassifolia Kom. in China’s Qilian Mountains

Cited by 7 publications

References 72 publications

Response of leaf stoichiometry of Potentilla anserina to elevation in China's Qilian Mountains

Response of leaf stoichiometry of Potentilla anserina to elevation in China's Qilian Mountains

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

The Influence of Different Vegetation Types on Soil C, N, P Content, and Their Stoichiometry in the Eastern Qilian Mountains' Binggou River Basin

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