Coordinated variation in root and leaf functional traits of Hippophae rhamnoides treated at different stump heights in feldspathic sandstone areas of Inner Mongolia

Liu, Lu; Guo, Yiwei; Liu, Xiaoyu; Yao, Yunfeng; Qi, Wei

doi:10.3389/fpls.2023.1104632

Cited by 4 publications

(3 citation statements)

References 52 publications

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“…The average diameter (RAD), length, and surface morphology were measured using a WinRHIZO Pro 2012b (Regent Instruments Inc., Quebec City, Canada). The roots were then dried in an oven at 60 °C for 48 h, their weight was monitored, and the dry weight was recorded at constant weight (Liu et al, 2023b). Finally, root length density (RLD, cm cm −3 ), root mass density (RMD, mg cm 3 ), and root surface area density (RSAD, cm 2 cm −3 ) were calculated.…”

Section: Measurement Of Root Parametersmentioning

confidence: 99%

“…The aboveground parts of a plant will undergo compensatory growth after destruction, which stimulates an increase in root biomass. Roots store abundant starch to provide nutrition for rapid recovery of the crown or foliage (Fang et al, 2006;Hamilton et al, 2013;Liu et al, 2023b). The present study analyzed the distributions of root and soil properties associated with different stump heights.…”

Section: Effects Of Stump Height On Root and Soil Properties Of H Rha...mentioning

confidence: 99%

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Preferential flow in the understory soil of Hippophae rhamnoides at different stump heights

Liu

Yao

et al. 2023

Front. Environ. Sci.

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This study aimed to clarify the effects of stumping on preferential flow in the understory soils of Hippophae rhamnoides and to assess appropriate stumping height for optimization of preferential flow. Root properties, soil properties, and preferential flow for different H. rhamnoides stump heights (0, 10, 15, 20 cm, and no-stumping, labeled conditions S1, S2, S3, S4, and CK, respectively) were studied using in situ dye-tracing and laboratory analysis. The results showed that stumping significantly increased preferential flow development. This effect was maximized in condition S3, with dye-tracing coverage (DC) of 36.77%, maximum dye depth (MaxD) of 40.02 cm, uniform infiltration depth (Unifr) of 14.28 cm, preferential flow ratio (PFfr) of 23.85%, and length index (LI) of 96.72%. In terms of root length density (RLD), root mass density (RMD), root surface area density (RSAD), soil water content (SWC), soil total porosity (TP), mean weight diameter (MWD), and soil organic matter (SOM), the conditions were ranked S3>S2>S1>S3>CK; for root average diameter (RAD), they were ranked S3<S2<S1<S4<CK. Structural equation modeling showed that DC was affected directly by TP, MWD, and SWC and indirectly by RAD, RLD, RMD, RSAD, and SOM, explaining up to 89.1% of the variance. Thus, stumping of H. rhamnoides affected soil properties through the mechanism of root development, thereby improving preferential flow development in the soil and soil infiltration. The optimal stump height was 15 cm. These findings are critical for vegetation recovery and for prevention and control of soil erosion in feldspathic sandstone areas.

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Section: Measurement Of Root Parametersmentioning

confidence: 99%

Section: Effects Of Stump Height On Root and Soil Properties Of H Rha...mentioning

confidence: 99%

Preferential flow in the understory soil of Hippophae rhamnoides at different stump heights

Liu

Yao

et al. 2023

Front. Environ. Sci.

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“…However, the vegetation is di cult to restore by means of clearcutting and reforestation in areas of severe deserti cation with arid climates and water-scarce soils 13 . Coppicing regeneration has been proven as the most ecological and economical way to solve this problem 14,15 .…”

Section: Introductionmentioning

confidence: 99%

Response patterns of root sprouting and the clonal dispersal ability of Hippophae rhamnoides ssp. sinensis in relation to stubble height and its nutrient accumulation and allocation strategy

Li,

Ji,

Nie

et al. 2023

Preprint

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Research into the relationship between coppice regeneration and stubble height has been mostly limited to stump sprouting, but root sprouts and clonal dispersal play a more important role in the restoration of declined populations and the maintenance of population stability. We aimed to investigate the response of root sprouting (number and growth) and the clonal dispersal (root extension and branching) capacity to stubble height, unveil its nutrient accumulation and allocation strategies and determine the appropriate stubble height that is most favorable for root sprouting, clonal dispersal, and nutrient accumulation. In a 15-year-old plantation of Hippophae rhamnoides ssp. sinensis with signs of premature aging, the plants were coppiced at 0, 10, and 20 cm from the ground level, with no coppicing as the control. The results showed the following: (1) Coppicing promoted the formation and growth of root sprouts, and root extension and branching, but promotion increased and then decreased with increasing stubble height, and the optimal stubble height was 10 cm. (2) N, P, K, Ca, and Mg content and reserves all increased and then decreased with the increase in stubble height, and the clonal nutrient content, reserves, and integrated nutrient accumulation capacity were greatest at 10 cm of stubble height. (3) The coppicing increased the accumulation and allocation ratio of nutrients in leaves, vertical roots, and horizontal roots, which played a dominant role in the integrated accumulation of clonal nutrients. (4) Root sprouting and clonal dispersal ability were positively correlated with clonal nutrient content, reserves, and integrated nutrient accumulation ability. Moreover, root-sprouting ability was positively correlated with clonal dispersal ability. From these, the coppicing regulated leaf development and clonal dispersal by affecting nutrient accumulation and allocation patterns, which in turn governed the formation and growth of root sprouts. This is a continuous driving process. According to the regression equations, a stubble height of 11–13 cm was estimated to be the most favorable for root sprouting, clonal dispersal, and nutrient accumulation.

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Variation and coordination among the plant functional traits of three coexisting shrub species in arid conditions

Zhao,

Ji,

et al. 2024

Environmental and Experimental Botany

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Coordinated variation in root and leaf functional traits of Hippophae rhamnoides treated at different stump heights in feldspathic sandstone areas of Inner Mongolia

Cited by 4 publications

References 52 publications

Preferential flow in the understory soil of Hippophae rhamnoides at different stump heights

Preferential flow in the understory soil of Hippophae rhamnoides at different stump heights

Response patterns of root sprouting and the clonal dispersal ability of Hippophae rhamnoides ssp. sinensis in relation to stubble height and its nutrient accumulation and allocation strategy

Variation and coordination among the plant functional traits of three coexisting shrub species in arid conditions

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