Shifting soil nutrient stoichiometry with soil of variable rock fragment contents and different vegetation types

Huang, Long; Hu, Hui; Bao, Weikai; Hu, Bin; Liu, Jian; Li, Fanglan

doi:10.1016/j.catena.2022.106717

Cited by 18 publications

(12 citation statements)

References 81 publications

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“…Available phosphorus (aP) was extracted with 0.5 mol L -1 NaHCO 3 at pH 8.5, and then determined by molybdenum antimony anti-colorimetry. Soil pH was determined in a 1:2.5 (w/v) soil-water suspension (SevenEasyS20; Mettler Toledo, USA) (Huang et al, 2023b).…”

Section: Soil Propertiesmentioning

confidence: 99%

“…2, 7, and S4). This was because soil macroporosity increases with increasing RFC (Huang et al, 2023b), which reduces the soil mechanical resistance (Xu et al, 2012;Gargiulo et al, 2016) and results in finer root systems (Bengough, 2003;Clark et al, 2003). Finer roots are beneficial for root-soil contact and resource acquisition in barren soil with high gravel content (Bengough, 2003;Ma et al, 2018;Freschet et al, 2020).…”

Section: Fine Root Depth Increased With Rfcmentioning

confidence: 99%

“…Soil heterogeneity is caused by the patchy distribution of coarse particles and nutrients in soil profiles (Huang et al, 2023a(Huang et al, , 2023b. Coarse parts of soil (particle size > 2 mm), usually called rock fragments, are widespread in terrestrial ecosystems and their content plays an important role in soil hydrological conditions such as infiltration (Poesen and Lavee, 1994;van Wesemael et al, 2000;Zhou et al, 2009;Zhang et al, 2011;Zhang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Rock fragment content (RFC) is critical for other soil properties, such as soil physical structure (Xu et al, 2012;Gargiulo et al, 2015Gargiulo et al, , 2016, water and nutrient availability (Rytter, 2012;Qin et al, 2015;Zhang et al, 2016;Ceacero et al, 2020), and microbial composition (Certini et al, 2004;Hong et al, 2021;Huang et al, 2023a). In soils with high RFC (Rytter, 2012;Ceacero et al, 2020;Huang et al, 2023b), growth and biomass accumulation decreases in plants (Mi et al, 2016;Hu et al, 2021), but the allocation ratio of the below-ground parts increases (Hu et al, 2021). The rocky soil, water stress, and infertile environment limits agroforest development of the arid area.…”

Section: Introductionmentioning

confidence: 99%

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Spatio-temporal patterns of fine root distribution in four xerophytic species shifted by soil rock fragment contents

Hu¹,

Bao²,

Huang³

et al. 2023

Preprint

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Temporal and spatial distribution of fine root influences the potential for resource acquisition in soil profiles, which defines how plants interact with local soil environments; however, a deep understanding of how vertical fine root distribution and their temporal dynamics varies with soil structural variations is lacking. We subjected four xerophytic species native to an arid valley of China, Artemisia vestita, Bauhinia brachycarpa, Sophora davidii, and Cotinus szechuanensis, to increasing rock fragment content (RFC) treatments (0%, 25%, 50%, and 75%, v v-1) in an arid environment and measured fine root vertical profiles over four years of growth. Fine root depth and biomass of woody species increased with increasing RFC, but the extent of increase declined with plant age. Increasing RFC also increased the degree of interannual decreases in fine-root diameter. The limited supplies of soil resources in coarse soils explained the increases in rooting depth and variations in the pattern of fine root profiles across RFC. Fine root depth and biomass of the subshrub species (A. vestita) in soil profiles decreased with the increase in RFC and plant age, showing an opposite pattern from the other three woody species. Within species, the annual increase in fine root biomass varied with RFC, which led to large interannual differences in the patterns of fine root profiles. Capacity of younger or subshrub plants to cope with soil environmental changes were greater than the older or shrub plants. These results provide insights into the limitations of soil resources in dry and rocky environments, and have management implications for degraded agroforest ecosystem.

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Section: Soil Propertiesmentioning

confidence: 99%

Section: Fine Root Depth Increased With Rfcmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Spatio-temporal patterns of fine root distribution in four xerophytic species shifted by soil rock fragment contents

Hu¹,

Bao²,

Huang³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…However, the characteristics of the soil itself and the root exudates of the vegetation have a greater impact on the fungal community structure and diversity (Gao et al, 2021;Hu et al, 2019). Fungal diversity is of great significance in maintaining ecological balance, fungal diversity is closely related to climate, vegetation types and soil nutrients (Huang et al, 2023). By studying the diversity of different plant rhizosphere soil fungi, we can further understand the fungal community structure, but also conducive to understanding changes in the environment for the ecological restoration of Changbai Mountain tundra to provide theoretical support.…”

Section: Introductionmentioning

confidence: 99%

Rhizosphere Soil Fungal Diversity and Soil Physicochemical Properties of Different Vegetations in Tundra of Changbai Mountain

Hao¹,

Yang²,

Wang³

2023

GEP

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By studying the diversity and community structure of rhizosphere soil fungi of different plants in the tundra on the northern slope of Changbai Mountain, it provides theoretical support for the restoration of environmental degradation and in-depth study of fungal diversity in the tundra of Changbai Mountain. High-throughput sequencing technology was used to determine the ITS1 region of fungal amplicons, so as to analyze the diversity of fungal communities in the rhizosphere soil of six plants in the tundra of Changbai Mountain, and to analyze the correlation between the environment and the diversity and richness of fungal communities in combination with relevant soil physical and chemical factors. The diversity and richness of fungal community in the rhizosphere soil of six plants in Changbai Mountain tundra were different.

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Shifting patterns in fine root distribution of four xerophytic species across soil structural gradients and years of growth

Hu,

Bao,

Huang

et al. 2024

Ecology and Evolution

Self Cite

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Fine root (diameter < 2 mm) distribution influences the potential for resource acquisition in soil profiles, which defines how plants interact with local soil environments; however, a deep understanding of how fine root vertical distribution varies with soil structural variations and across growth years is lacking. We subjected four xerophytic species native to an arid valley of China, Artemisia vestita, Bauhinia brachycarpa, Sophora davidii, and Cotinus szechuanensis, to increasing rock fragment content (RFC) treatments (0%, 25%, 50%, and 75%, v v−1) in an arid environment and measured fine root vertical profiles over 4 years of growth. Fine root depth and biomass of woody species increased with increasing RFC, but the extent of increase declined with growth years. Increasing RFC also increased the degree of interannual decreases in fine root diameter. The limited supply of soil resources in coarse soils explained the increases in rooting depth and variations in the pattern of fine root profiles across RFC. Fine root depth and biomass of the non‐woody species (A. vestita) in soil profiles decreased with the increase in RFC and growth years, showing an opposite pattern from the other three woody species. Within woody species, the annual increase in fine root biomass varied with RFC, which led to large interannual differences in the patterns of fine root profiles. Younger or non‐woody plants were more susceptible to soil environmental changes than the older or woody plants. These results reveal the limitations of dry and rocky environments on the growth of different plants, with woody and non‐woody plants adjusting their root vertical distribution through opposite pathways to cope with resource constraints, which has management implications for degraded agroforest ecosystems.

show abstract

Shifting soil nutrient stoichiometry with soil of variable rock fragment contents and different vegetation types

Cited by 18 publications

References 81 publications

Spatio-temporal patterns of fine root distribution in four xerophytic species shifted by soil rock fragment contents

Spatio-temporal patterns of fine root distribution in four xerophytic species shifted by soil rock fragment contents

Rhizosphere Soil Fungal Diversity and Soil Physicochemical Properties of Different Vegetations in Tundra of Changbai Mountain

Shifting patterns in fine root distribution of four xerophytic species across soil structural gradients and years of growth

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