The Effects of Edaphic Factors on Riparian Plants in the Middle and Lower Reaches of the Hanjiang River, China

Yang, Jin‐Hui; Li, Enhua; Zhou, Rui; Xia, Ying; Yang, Chao; Zhang, Yingying

doi:10.3390/plants11040531

Cited by 4 publications

(2 citation statements)

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“…In the dimension of river width, the soil EC and SOC content become the most important constraints on plant species diversity in the riparian zone due to the elevation difference caused by microtopographic changes and the limitation of the distance from the river, which was consistent with the results of previous studies (Zhang et al, 2015;Zeng et al, 2020;Flores-Galicia et al, 2021). In addition, factors such as differences in the intensity of anthropogenic activities around the sample sites could affect the content of soil mineral nutrients, thereby affecting the composition and diversity of plant communities (Yang et al, 2022). The riparian zone was a dynamic ecosystem that was influenced by various natural and anthropogenic factors.…”

Section: Main Soil Physicochemical Factors Affecting Plant Species Di...supporting

confidence: 90%

Spatial variation patterns of vegetation and soil physicochemical properties of a typical inland riverscape on the Mongolian plateau

Fu²,

Liu³

et al. 2023

Front. Environ. Sci.

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The spatial distribution and heterogeneity of soil and vegetation, as the root of the maintenance of ecosystem services in the riparian zone, play a decisive role in the ecological functions of the riverscape. In this study, a field survey of wetland plant communities and soil sampling were conducted in both longitudinal and lateral dimensions from the perspective of the riverscape of the Ulgai River, a typical inland river on the Mongolian Plateau. The diversity of wetland plant communities, soil physicochemical properties, and the correlations between them were systematically analyzed. The results showed that a total of 87 species belonging to 65 genera and 24 families of plants were present, with Asteraceae, Poaceae, and Cyperaceae as the main families. The plant composition and species diversity in the riparian zone at different dimensions showed obvious spatial patterns of succession. Although the correlation coefficient and significance of the physicochemical properties of river length and river width in the study area were different, most correlations remained consistent, among which soil moisture, soil pH, and total carbon were correlated with many physicochemical factors. The soil ammonium and nitrate nitrogen along the river length direction and electrical conductivity and organic carbon content along the river width direction were the main limiting factors affecting the diversity and distribution of plant species in the riparian zone based on the redundancy analysis. This study provides a theoretical basis for the continuous improvement of the current soil quality and the restoration of the degraded wetland ecosystems of inland rivers in arid and semi-arid regions, as well as a new perspective for the study of riverscape ecology.

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Section: Main Soil Physicochemical Factors Affecting Plant Species Di...supporting

confidence: 90%

Spatial variation patterns of vegetation and soil physicochemical properties of a typical inland riverscape on the Mongolian plateau

Fu²,

Liu³

et al. 2023

Front. Environ. Sci.

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show abstract

“…C. rotundus positively correlates with N-NH 4 due to the mycorrhizal fungi in its root systems; these mycorrhizal fungi can increase the absorption of soil N-NH 4 and transfer it to the host plant [73,74]. P. paspaloides and H. sibthorpioides were weakly affected by soil factors due to their wet and shade-tolerant properties, as well as their vegetative and sexual reproduction, which decreased the limiting effects of soil environments on these two plant species [75]. For P. paspaloides especially, as the most dominant accompanying species of aquatic ecotype A. philoxeroides, its demand for water environments is higher than for soil environments [22].…”

Section: Mechanism Of Impact Of Soil On Plant Species Distributionsmentioning

confidence: 99%

Impacts of Soil Properties on Species Diversity and Structure in Alternanthera philoxeroides-Invaded and Native Plant Communities

Wu,

Liu,

Zhang

et al. 2024

Plants

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Soil properties can affect plant population dynamics and the coexistence of native and invasive plants, thus potentially affecting community structure and invasion trends. However, the different impacts of soil physicochemical properties on species diversity and structure in native and invaded plant communities remain unclear. In this study, we established a total of 30 Alternanthera philoxeroides-invaded plots and 30 control plots in an area at the geographical boundary between North and South China. We compared the differences in species composition between the invaded and native plant communities, and we then used the methods of regression analysis, redundancy analysis (RDA), and canonical correspondence analysis (CCA) to examine the impacts of soil physicochemical properties on four α-diversity indices and the species distribution of these two types of communities. We found that A. philoxeroides invasion increased the difference between the importance values of dominant plant species, and the invasion coverage had a negative relationship with the soil-available potassium (R2 = 0.135; p = 0.046) and Patrick richness index (R2 = 0.322; p < 0.001). In the native communities, the species diversity was determined with soil chemical properties, the Patrick richness index, the Simpson dominance index, and the Shannon–Wiener diversity index, which all decreased with the increase in soil pH value, available potassium, organic matter, and ammonium nitrogen. However, in the invaded communities, the species diversity was determined by soil physical properties; the Pielou evenness index increased with increasing non-capillary porosity but decreased with increasing capillary porosity. The determinants of species distribution in the native communities were soil porosity and nitrate nitrogen, while the determinants in the invaded communities were soil bulk density and available potassium. In addition, compared with the native communities, the clustering degree of species distribution in the invaded communities intensified. Our study indicates that species diversity and distribution have significant heterogeneous responses to soil physicochemical properties between A. philoxeroides-invaded and native plant communities. Thus, we need to intensify the monitoring of soil properties in invaded habitats and conduct biotic replacement strategies based on the heterogeneous responses of native and invaded communities to effectively prevent the biotic homogenization that is caused by plant invasions under environmental changes.

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Variability in precipitation influences the water sourcing and adaptive strategies of key plant species within the desert steppe ecosystem

Zhang,

Song,

et al. 2024

Ecological Indicators

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The Effects of Edaphic Factors on Riparian Plants in the Middle and Lower Reaches of the Hanjiang River, China

Cited by 4 publications

References 50 publications

Spatial variation patterns of vegetation and soil physicochemical properties of a typical inland riverscape on the Mongolian plateau

Spatial variation patterns of vegetation and soil physicochemical properties of a typical inland riverscape on the Mongolian plateau

Impacts of Soil Properties on Species Diversity and Structure in Alternanthera philoxeroides-Invaded and Native Plant Communities

Variability in precipitation influences the water sourcing and adaptive strategies of key plant species within the desert steppe ecosystem

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