Root vertical distributions of two <i>Artemisia</i> species and their relationships with soil resources in the Hunshandake desert, China

Gao, Xueqing; Liu, Xiaoqiang; Ma, Linna; Wang, Renzhong

doi:10.1002/ece3.6135

Cited by 9 publications

(10 citation statements)

References 31 publications

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“…In addition, fine root production and turnover rate were negatively related to soil P content. These results support the hypothesis that plants preferentially allocate more resources to roots on sites with low soil moisture and poor nutrients (Garnier 1991;Gao et al 2020). In Chinese pine plantations, the positive relationship between soil N and fine root biomass could be explained by the conservation nutrient use strategies employed by Chinese pine.…”

Section: Response Of Fine Roots To Soil Propertiessupporting

confidence: 81%

Response of density-related fine root production to soil and leaf traits in coniferous and broad-leaved plantations in the semiarid loess hilly region of China

et al. 2021

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Fine roots are the most active and functional component of root systems and play a significant role in the acquisition of soil resources. Density is an important structural factor in forest plantations but information on changes in fine roots along a density gradient is limited. In this study, plantations of black locust (Robinia pseudoacacia L.) and Chinese pine (Pinus tabuliformis Carr.) with four density classes were analyzed for the influence of soil and leaf traits on fine root growth. Fine root biomass increased with stand density. High fine root biomass was achieved through increases in the fine root production and turnover rate in the high-density black locust plantations and through an increase in fine root production in the pine plantations. In the high-density Chinese pine stand, there was a high fine root turnover which, coupled with high fine root production, contributed to a high fine root biomass. Overall, fine root production and turnover rate were closely related to soil volumetric water content in both kinds of plantations, while fine root biomass, especially the component of necromass, was related to soil nutrient status, which refers to phosphorous content in black locust plantations and nitrogen content in Chinese pine plantations. There was a close linkage between leaf area index and fine root dynamics in the black locust plantations but not in the pine plantations.

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Section: Response Of Fine Roots To Soil Propertiessupporting

confidence: 81%

Response of density-related fine root production to soil and leaf traits in coniferous and broad-leaved plantations in the semiarid loess hilly region of China

et al. 2021

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“…In addition to response to environmental changes, the inherent characteristics of plants also determine root distribution and resource acquisition strategies, such as species and growth years (Gao et al, 2020;Luo et al, 2021;Peek et al, 2005;Zhou et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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

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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.

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“…Recent research has explored the interactions of plant–soil nutrient and microbial diversity and their effects on PM and ecosystem function and stability (Gao et al., 2020 ; Wang et al., 2022 ). Root vertical distributions and biomass (root mass) for two Artemisia species positively correlated with soil water, total soil nitrogen, and carbon contents, suggesting that both soil moisture and poor soil nutrients were the limiting resources for the growth and settlement of the two species in dry regions at a local scale (Gao et al., 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Plant mass variations of Leymus chinensis (Poaceae) and their relationships with environmental factors on a large‐scale gradient, northeastern China

Zheng,

Xue,

et al. 2024

Ecology and Evolution

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Body size (or mass) variations and their relationships with environmental variability have been well documented for many species at the local scale, while the effects of climate, combined with soil nutrients, on plant mass in large‐scale gradient remain unclear. Herein, detailed surveys were conducted to investigate plant mass (PM, aboveground mass per plant) variations of Leymus chinensis and their relationship with environmental factors (e.g., climate, soil nutrient, and microbial diversity) at 18 wild sites along a large‐scale gradient from 114 to 124° E in northeastern China. Based on site‐by‐site analyses, the plant mass of the species varied significantly from east to west along the gradient. It initially increased, peaking at middle sites, and then dropped with the increase of drought in both dry and rainy seasons. Plant mass at the eastern end was almost equal to that at the western end and was equivalent to 1/2 and 1/3 of middle sites. The average plant mass in the rainy season was about 50% greater than that in the dry season (F1,1078 = 489.80, p < .001). The effects of environmental variables on plant mass differed in dry and rainy seasons. Mean annual temperature and temperature seasonality were the critical restrictions of plant mass in the dry season, while temperature and precipitation seasonality and soil resources (total C, Mn, Zn) had significant impacts in the rainy season (p < .05). In general, plant mass had not dropped linearly with the increase of drought along large‐scale gradient, suggesting that precipitation decrease was not the critical restriction regulating the growth and settlement of the species.

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Root vertical distributions of two Artemisia species and their relationships with soil resources in the Hunshandake desert, China

Cited by 9 publications

References 31 publications

Response of density-related fine root production to soil and leaf traits in coniferous and broad-leaved plantations in the semiarid loess hilly region of China

Response of density-related fine root production to soil and leaf traits in coniferous and broad-leaved plantations in the semiarid loess hilly region of China

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

Plant mass variations of Leymus chinensis (Poaceae) and their relationships with environmental factors on a large‐scale gradient, northeastern China

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