Varying characteristics of soil seed banks during the succession process of<i>Nitraria Tangutorum</i>vegetation in an arid desert area

Quanlin, 马全林 Ma; Qi, 卢琦 Lu; Linyuan, 魏林源 Wei; Hujia, 靳虎甲 Jin

doi:10.5846/stxb201306041326

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…The occurrence records of Nitraria nebkha fields in north-central China were obtained from field investigations from 2015 to 2022, published literature (Du et al, 2007;Li et al, 2019Li et al, , 2021Ma et al, 2015;Sun et al, 2020) and Worldview satellite images available from Google Earth (Figure 1a). Individual nebkhas are relatively small in size, typically ranging from 5 to 10 m in diameter, and they are commonly characterised by a distinctive mound-like morphology (Li et al, 2021).…”

Section: Data Preparationmentioning

confidence: 99%

Biogeomorphological niche of a landform: Machine learning approaches reveal controls on the geographical distribution of Nitraria tangutorum nebkhas

Zhang,

Li,

Mason

et al. 2024

Earth Surf Processes Landf

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Nebkhas are distinctive biogeomorphological landforms prevalent in global drylands and coastal environments. They play a crucial role in supporting local biodiversity and preventing land desertification and often serve as an indicator of local environmental change. Despite their significance, the environmental factors that affect their geographical distribution and how they respond to climate change have not been fully explored. This study represents a novel application of machine learning models to quantifying the biogeomorphological niche of Nitraria nebkhas in northern China and simulating their geographical distribution under future climate change conditions. Findings underscore that climatic variables influence the growth of formative shrub species on nebkhas, whereas climate, soil and geomorphological conditions, along with their spatial configuration, determine the probability of nebkha occurrence. Predictions under medium and high greenhouse gas emission scenarios indicate a northward shift in the potential distribution of nebkhas in northern China by the end of the century, accompanied by a decrease in the south due to rising temperatures. Given the potential impact of nebkha field degradation on biodiversity and soil hydrological conditions, adaptive land use strategies should be designed to protect nebkhas and mitigate the impact of climate change. Our study not only provides valuable insights for informing policy‐making and conservation initiatives but also serves as an example for quantifying the niche of biogeomorphological landforms and simulating their dynamics by integrating machine learning approaches into empirical geomorphological studies.

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Section: Data Preparationmentioning

confidence: 99%

Biogeomorphological niche of a landform: Machine learning approaches reveal controls on the geographical distribution of Nitraria tangutorum nebkhas

Zhang,

Li,

Mason

et al. 2024

Earth Surf Processes Landf

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Soil Seed Bank Characteristics of Nitraria tangutorum Nebkhas in a Desert–Oasis Ecotone

Xiao

Xin

et al. 2022

Front. Environ. Sci.

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Understanding soil seed banks (SSBs) of Nitrariatangutorum nebkhas is critical for vegetation restoration and ecological management in desert–oasis ecotones. In this study, we conducted a survey in the field and a seed germination experiment in the laboratory to investigate the characteristics of SSB in different sizes and parts of nebkhas and to examine their relationship with aboveground vegetation. The results showed that there were 17 species of plants in six families in the SSB of Nitraria tangutorum nebkhas in a desert–oasis ecotone, dominated by Chenopodiaceae. The life forms were mainly annual herbs, accounting for 58.82%–71.43%. The number of species in the SSB were in the order of large nebkha > medium nebkha > small nebkha, and there was no significant difference in SSB density. However, SSB densities in different parts of each nebkha were in the order bottom > middle > top. The densities were significantly different and showed a decreasing trend as soil depth increased. Most of the plant seeds were distributed in the 0–5 cm soil layer. The similarity coefficient between the SSB of each nebkha and the aboveground vegetation was high. From the bottom to the top, the number of common species and similarity coefficient between the aboveground vegetation and the SSB decreased, and the number of species in the SSB was greater than that of the aboveground vegetation. Vegetation plays a decisive role in the initial development of a nebkha. When the nebkha develops to a certain extent, it reacts to the vegetation, thereby intensifying the differences in the composition of vegetation species in different parts of the nebkha and further affecting the SSB.

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Study on Seed Bank Composition and Seedling Emergence Regularity in Placer Iron Ore Soil

Yurong

Mei

Wei

et al. 2022

Journal of Resources and Ecology

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Varying characteristics of soil seed banks during the succession process ofNitraria Tangutorumvegetation in an arid desert area

Abstract: Varying characteristics of soil seed banks during the succession process of Nitraria Tangutorum vegetation in an arid desert area.

Cited by 3 publications

References 2 publications

Biogeomorphological niche of a landform: Machine learning approaches reveal controls on the geographical distribution of Nitraria tangutorum nebkhas

Biogeomorphological niche of a landform: Machine learning approaches reveal controls on the geographical distribution of Nitraria tangutorum nebkhas

Soil Seed Bank Characteristics of Nitraria tangutorum Nebkhas in a Desert–Oasis Ecotone

Study on Seed Bank Composition and Seedling Emergence Regularity in Placer Iron Ore Soil

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