Correlation between nebkhas formation ability and silhouette layer parameters of desert plants

Chang, Z F; Zhang, J H; Shi, Xiaoping; Wang, Q; Zhang, D K; Duan, Xiaofeng

doi:10.1088/1755-1315/191/1/012012

Cited by 4 publications

(4 citation statements)

References 5 publications

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“…Plants that can form nebkhas are triangular-shaped or cylindrical-shaped, and the reverse occurred in the case of rhombus-shaped [21]. The presence of nebkhas strongly influences abiotic factors, biotic factors and gradually forms a highly heterogeneous fertile island effect [22]. The process of fertile island effect is complex mutual interactions between vegetation and nebkhas in the desert area [23][24].…”

Section: Introductionmentioning

confidence: 99%

Soil Organic Carbon, Total Nitrogen and Their Densities of Nitraria Tangutorum Nebkhas at Different Succession Stages on the Edge of Ulan Buh Desert

Liu¹,

Dang²,

Wang³

et al. 2022

Pol. J. Environ. Stud.

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This study aimed to determine if the succession of Nitraria Tangutorum nebkhas could change soil nutrients in the Jilantai desert, Inner Mongolia. Four succession stages including rudimental stage (RUD), developing stage (DEV), stabilizing stage (STA) and degrading stage (DEG) were regarded as succession patterns. We collected 588 soil profile samples within a 0-100 cm depth from different succession stages of N. tangutorum nebkhas. We determined the vertical distributions of soil organic carbon (SOC), total nitrogen (TN) and their densities to 1 m depth. The results indicated that soil depths and successional stages had significantly impact on SOC and soil organic carbon density (SOCD), and soil depths had significant impact on TN and soil nitrogen density (SND). SOCD showed firstly increased and then decreased, and SND showed an increasing trend with the succession of N. tangutorum nebkhas. SOCD and SND showed as the following order: STA (860.60 g/m 2 ) >DEG (753.00 g/m 2 )>DEV (737.60 g/m 2 )>RUG (678.18 g/m 2 ) and DEG (83.75 g/m 2 )>STA (83.68 g/m 2 )>DEV (83.06 g/m 2 )>RUG (73.42 g/m 2 ), respectively. The stratification ratios (SR) of SOC and TN gradually decreased with soil depth in different succession stages, and there was no significant difference in SRs of SOC and TN for each succession stage. Redundancy analysis (RDA) revealed that soil depth, silt content, soil water content (SWC) and successional stage directly drove SOCD and SND of N. tangutorum nebkhas. Therefore, understanding the vertical distribution of the SOC and TN at different succession stages has great significance for accurately estimating the SOCD and SND storage in the desert areas.

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Section: Introductionmentioning

confidence: 99%

Soil Organic Carbon, Total Nitrogen and Their Densities of Nitraria Tangutorum Nebkhas at Different Succession Stages on the Edge of Ulan Buh Desert

Liu¹,

Dang²,

Wang³

et al. 2022

Pol. J. Environ. Stud.

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“…The height of nebkhas is determined by certain plant attributes [22]. Due to N. tangutorun has a prostrate growth habit, sand sources in the study area is abundant and N. tangutorum forms numerous sprouting branches after being buried.…”

Section: The Morphology and Development Of Shrub Determines The Succe...mentioning

confidence: 99%

“…Nebkhas have attracted little attention concerning their succession and vegetation features. Most studies are focused on community composition and richness [8,[14][15], soil nutrients [8,[16][17], ecological adaptation [18][19] and developmental processes [20][21][22]. However, there is much more that needs to be studied about nebkhas.…”

Section: Introductionmentioning

confidence: 99%

“…On a large scale, the characteristics of deposition and morphology in nebkhas formed can appear different due to conditions such as wind conditions, physical sources, vegetation types, and surface conditions in different regions [8]. Among them, plant type and sand conditions strongly influence the morphological characteristics of the developing nebkhas [22]. The morphological parameters of nebkhas are not uniform under different habitat conditions, but exhibit characteristics that are adapted to the local aeolian sand environment [26].…”

Section: Introductionmentioning

confidence: 99%

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Changes in Morphology of Nitraria tangutorum Nebkhas at different Successional Stages in the Oasis-Desert Ecotone, Northwest China

Liu¹,

Wei²,

Li³

et al. 2023

Pol. J. Environ. Stud.

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Nebkhas play a tremendous role in maintaining the ecological functions of deserts and in slowing land desertification processes. Numerous nebkhas are distributed in the northwestern edge of the Ulan Buh desert, Nitraria tangutorum nebkhas are the most typical dunes in this area. However, our knowledge of the effect of those factors on the succession of nebkhas, including their succession in different sandy land types, is limited. The goal of this study was to reveal their factors influencing the morphological characteristics of N. tangutorum nebkhas in different sandy land types (shifting sandy land, semi-fixed sandy land, and fixed sandy land) in the Ulan Buh desert. Our results showed the densities of N. tangutorum nebkhas were 34, 51, and 77 dunes per ha in the shifting, semi-fixed, and fixed sandy lands, respectively. The density of N. tangutorum nebkhas gradually increased and N. tangutorum nebkhas started to degenerate with the increasing fixation of sandy land. The successional stage had significant effects on all the morphological characteristics, and sandy land types had significant effects on the length (L), height (H), volume (V), horizontal scale (D) and ratio of width to height (H/W). Almost all of the morphological parameters of N. tangutorum nebkhas were correlated at different successional stages, indicating a strong interrelationship among the morphological parameters of nebkhas. The successional stages of N. tangutorum nebkhas had significant effects on the density of branch (M), height (h), coverage (C), deadwood rate (DR), and length of new branches (LB) of the N. tangutorum shrub. The M, h, C, and LB first increased and then decreased, and DR increased with the succession of N. tangutorum nebkhas. These results indicated that we should focus on nebkhas succession to ensure the ecological stability of oases in a dessert.

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Changes in distribution and morphology of Tamarix ramosissima nebkhas in an oasis-desert ecotone

Yang

Zheng

et al. 2021

Geosci J

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Correlation between nebkhas formation ability and silhouette layer parameters of desert plants

Cited by 4 publications

References 5 publications

Soil Organic Carbon, Total Nitrogen and Their Densities of <i>Nitraria Tangutorum</i> Nebkhas at Different Succession Stages on the Edge of Ulan Buh Desert

Soil Organic Carbon, Total Nitrogen and Their Densities of <i>Nitraria Tangutorum</i> Nebkhas at Different Succession Stages on the Edge of Ulan Buh Desert

Changes in Morphology of <i>Nitraria tangutorum</i> Nebkhas at different Successional Stages in the Oasis-Desert Ecotone, Northwest China

Changes in distribution and morphology of Tamarix ramosissima nebkhas in an oasis-desert ecotone

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