Plant distribution at the mobile dune scale and its relevance to soil properties and topographic features

Zuo, Xiaoan; Zhao, Haichao; Zou, Xueyong; Guo, Yafei; Luo, Yuhan

doi:10.1007/s00254-007-1104-0

Cited by 42 publications

(38 citation statements)

References 38 publications

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“…In concert with the movement of mineral materials, organic matter may be redistributed downslope through erosion . Our results showed that soil organic C and total N increased with the decline of relative elevation of sampling site on each dune, supporting that the topography affects the distribution of soil nutrients at the dune scale (Zuo et al 2008b).…”

Section: Discussionmentioning

confidence: 71%

“…The study on the scaling effects on soil nutrients in desertified area of northeastern Tanzania showed that the desertified microlandscapes had an overall lower soil organic matter and total nitrogen (Oba et al 2008). The different scales or landscapes could reflect an unequal spatial distribution of soil nutrients related to the vegetation and topographic and geomorphic variations (Ludwig et al 2000;Zuo et al 2008b). In our study, the exposure of dune crest to wind erosion and an overall more barren/sparse landscape are due to difficulty in establishing vegetation which enrich the soil on the crest.…”

Section: Discussionmentioning

confidence: 99%

“…The distribution patterns of soil organic C and total N have significant feedbacks to plant establishment, growth, and survival (Hook et al 1991). Zuo et al (2008b) used the canonical correspondence analysis to study the relationship between the plant distribution and soil properties in RMD11 and RMD20, which showed that the distribution of sand pioneer plant, A. squarrosum, was positively related to the relative height of sampling site and soil water content, while that of other herbaceous plants was positively related to soil nutrients in each dune. Our results showed that significant differentiation occurred in the plant species composition, life form, and vegetation cover between the two naturally restored mobile dunes (Tables 1 and 2), supporting the conclusion that changes in the magnitude and scale of spatial dependence in soil nutrients may reflect changes in the vegetation cover or composition over a successional period (Gross et al 1995).…”

Section: Discussionmentioning

confidence: 99%

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Spatial pattern and heterogeneity of soil organic carbon and nitrogen in sand dunes related to vegetation change and geomorphic position in Horqin Sandy Land, Northern China

Zuo

Zou

Zhao

et al. 2009

Environ Monit Assess

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To assesses the effect of geomorphology, topography, and vegetation changes on spatial pattern of soil organic carbon (C) and total nitrogen (N) in sand dunes, we used the quantitative methods to examine the spatial heterogeneity of vegetation cover, soil organic C, and total N in an 11-year naturally restored mobile dune (RMD11) and a 20-year naturally restored mobile dune (RMD20) that had been fenced to exclude grazing in Horqin Sandy Land, northern China. Our results showed that the vegetation cover, plant density, species number and diversity, soil organic C, and total N increased from RMD11 to RMD20 and increased from the 50 x 50-m plot (crest) to the 100 x 100-m plot (slope) in each dune. Geostatistical analysis showed that the spatial structural variance accounted for the largest proportion of the total sample variance in vegetation cover, soil organic C, and total N in each dune plot. Calculated spatial autocorrelation ranges of vegetation cover, soil organic C, and total N increased from RMD11 to RMD20, indicating that longer time since vegetation restoration results in a more homogeneous distribution of vegetation cover, soil organic C, and total N in sand dunes. In addition, the spatial continuity of vegetation cover, soil organic C, and total N decreased from the 50 x 50-m plot (crest) to the 100 x 100-m plot (slope) in each dune. These results suggest that the spatial distribution of soil organic C and total N in sand dunes is associated closely with geomorphic position related to the dune crest and slope, relative elevation of sampling site, and vegetation cover. Understanding the principles of this relationship between them may guide strategies for the conservation and management of semiarid dune ecosystems.

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Section: Discussionmentioning

confidence: 71%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Spatial pattern and heterogeneity of soil organic carbon and nitrogen in sand dunes related to vegetation change and geomorphic position in Horqin Sandy Land, Northern China

Zuo

Zou

Zhao

et al. 2009

Environ Monit Assess

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“…Many studies have reported that land has been ameliorated by those restoration measures [8,[10][11][12][13][14][21][22][23][24][25][26]. Miyasaka et al [10] reported that land restoration proceeds in an upward direction, when facilitated by tree or shrub plantations or grazing exclusion, along the topographic gradient on sand dunes.…”

Section: Study Areamentioning

confidence: 99%

Classification of Land Use on Sand-Dune Topography by Object-Based Analysis, Digital Photogrammetry, and GIS Analysis in the Horqin Sandy Land, China

et al. 2016

Self Cite

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Previous field research on the Horqin Sandy Land (China), which has suffered from severe desertification during recent decades, revealed how land use on a sand-dune topography affects both land degradation and restoration. This study aimed to depict the spatial distribution of local land use in order to shed more light on previous field findings regarding policies on a broader scale. We performed the following analyses with Panchromatic Remote-sensing Instrument for Stereo Mapping (PRISM) and Advanced Visible and Near Infrared Radiometer type 2 (AVNIR-2) images of Advanced Land Observing Satellite (ALOS): (1) object-based classification to discriminate preliminary classification of land-use types that were approximately differentiated by ordinary pixel-based analysis with spectral information; (2) digital photogrammetry to generate a digital surface model (DSM) with adequately high accuracy to represent undulating sand-dune topography; (3) geographic information system (GIS) analysis to classify major topographic types with the digital surface model (DSM); and (4) overlay of the two classification results to depict the local land-use types. The overall accuracies of the object-based and GIS-based classifications were high, at 93% (kappa statistic: 0.84) and 89% (kappa statistic: 0.81), respectively. The resultant local land-use map represents areas covered in previous field studies, showing where and how land degradation and restoration are likely to occur. This research can contribute to future environmental surveys, models, and policies in the study area.

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“…Very few studies have been conducted in semiarid mobile dune systems Zuo et al, 2008) or looked at the relationship between the soil seed bank and above-ground vegetation along a chronosequence (but see Yan et al, 2005). The differences in development of these semi-arid mobile systems compared with coastal dunes highlights the need for such a study, in order to gain a better understanding of their dynamics.…”

Section: Introductionmentioning

confidence: 99%

Species shifts in above-ground vegetation and the soil seed bank in the inter-dune lowlands of an active dune field in Inner Mongolia, China

Wang

Ooi

Ren

et al. 2015

Basic and Applied Ecology

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Degradation of semi-arid ecosystems leading to desertification presents a global environmental challenge. However, few studies have investigated seed bank and above-ground species composition in degraded semiarid dune systems, particularly in relation to their potential to contribute to stabilisation and revegetation. We determined whether soil seed bank and above-ground species composition differed along a chronosequence in the inter-dune lowlands of an active dune field in Inner Mongolia, China. Soil cores were collected in early April 2011 and soil seed bank composition determined using a combination of the seedling emergence and seed extraction methods. Established vegetation, including species composition and abundance, was also surveyed. Relative importance values for all above-ground species and similarities in species composition of vegetation and soil seed bank along the chronosequence were analysed. A clear successional trend was shown for established vegetation along the first three stages identified, followed by a final stage reverting to more mobile substrate due to disturbance by dune movement. This trend was not reflected in the seed bank. Plant and seed bank density increased over time, however, species composition of the seed bank reflected earlier stages rather than the corresponding established vegetation. There was a relationship between established vegetation and the soil seed bank at the earliest stage, driven mainly by the persistence of seeds of the pioneer species Agriophyllum squarrosum and Corispermum candelabrum. A relatively close relationship was also found at the final stage, where frequent disturbance occurred as a result of increasing sand burial, caused by constant directional sand dune movement. While a clear relationship between the seed bank and associated vegetation was not found along the whole chronosequence, the seed bank displayed potential for restoration of pioneer psammophytes and annual herb species, suggesting that it would contribute to regeneration, as well as support latter-stage annuals and several rare and endemic species. E-mail address: jiangdm.iae@gmail.com; alamusa@iae.ac.cn. AbstractDegradation of semi-arid ecosystems leading to desertification presents a global environmental challenge. However, few studies have investigated seed bank and above-ground species composition in degraded semi-arid dune systems, particularly in relation to their potential to contribute to stabilisation and revegetation. We determined whether soil seed bank and above-ground species composition differed along a chronosequence in the inter-dune lowlands of an active dune field in Inner Mongolia, China. Soil cores were collected in early April 2011 and soil seed bank composition determined using a combination of the seedling emergence and seed extraction methods. Established vegetation, including species composition and abundance, was also surveyed. Relative importance values for all above-ground species and similarities in species composition of vegetation and soil seed ban...

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Plant distribution at the mobile dune scale and its relevance to soil properties and topographic features

Cited by 42 publications

References 38 publications

Spatial pattern and heterogeneity of soil organic carbon and nitrogen in sand dunes related to vegetation change and geomorphic position in Horqin Sandy Land, Northern China

Spatial pattern and heterogeneity of soil organic carbon and nitrogen in sand dunes related to vegetation change and geomorphic position in Horqin Sandy Land, Northern China

Classification of Land Use on Sand-Dune Topography by Object-Based Analysis, Digital Photogrammetry, and GIS Analysis in the Horqin Sandy Land, China

Species shifts in above-ground vegetation and the soil seed bank in the inter-dune lowlands of an active dune field in Inner Mongolia, China

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