Different contributions of plant diversity and soil properties to the community stability in the arid desert ecosystem

Jiang, Longyang; Sattar, Kunduz; Lü, Guang-Hui; Dong, Hailiang; Zhang, Jie; Yang, Xiaodong

doi:10.3389/fpls.2022.969852

Cited by 9 publications

(7 citation statements)

References 90 publications

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“…The addition of 3% SBC, 5% SBC and 5% FBC decreased the relative abundance of dominant species compared with other biochar. According to the “Complementary Effect”, an increase in biodiversity promotes complementary resource utilization through niche complementation ( Wang et al., 2019 ; Jiang et al., 2022 ; Token et al., 2022 ). Moreover, we also found the positive correlation between the FDis index and community stability.…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, we also found the positive correlation between the FDis index and community stability. Functional dispersion serves as an indicator of niche complementarity, with higher values reflecting stronger competition and niche complementarity among species ( Jiang et al., 2022 ). The increase in functional dispersion contributes to maintaining community stability.…”

Section: Discussionmentioning

confidence: 99%

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Biochar addition can negatively affect plant community performance when altering soil properties in saline-alkali wetlands

Wang,

He,

et al. 2024

Front. Plant Sci.

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Biochar is a widely proposed solution for improving degraded soil in coastal wetland ecosystems. However, the impacts of biochar addition on the soil and plant communities in the wetland remains largely unknown. In this study, we conducted a greenhouse experiment using soil seed bank from a coastal saline-alkaline wetland. Three types of biochar, including Juglans regia biochar (JBC), Spartina alterniflora biochar (SBC) and Flaveria bidentis biochar (FBC), were added to the saline-alkaline soil at ratios of 1%, 3% and 5% (w/w). Our findings revealed that biochar addition significantly increased soil pH, and increased available potassium (AK) by 3.74% - 170.91%, while reduced soil salinity (expect for 3% SBC and 5%SBC) by 28.08% - 46.93%. Among the different biochar types, the application of 5% FBC was found to be the most effective in increasing nutrients and reducing salinity. Furthermore, biochar addition generally resulted in a decrease of 7.27% - 90.94% in species abundance, 17.26% - 61.21% in community height, 12.28% - 56.42% in stem diameter, 55.34% - 90.11% in total biomass and 29.22% - 78.55% in root tissue density (RTD). In particular, such negative effects was the worst in the SBC samples. However, 3% and 5% SBC increased specific root length (SRL) by 177.89% and 265.65%, and specific root surface area (SRSA) by 477.02% and 286.57%, respectively. The findings suggested that the plant community performance was primarily affected by soil pH, salinity and nutrients levels. Furthermore, biochar addition also influenced species diversity and functional diversity, ultimately affecting ecosystem stability. Therefore, it is important to consider the negative findings indirectly indicate the ecological risks associated with biochar addition in coastal salt-alkaline soils. Furthermore, Spartina alterniflora was needed to desalt before carbonization to prevent soil salinization when using S. alterniflora biochar, as it is a halophyte.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Biochar addition can negatively affect plant community performance when altering soil properties in saline-alkali wetlands

Wang,

He,

et al. 2024

Front. Plant Sci.

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“…It has been reported that the "niche complementarity effect" between species has an important impact on community stability. When the traits between species are different, this can stimulate the community to secure more resources, reduce intraspecific competition, and improve community stability [13]. A meta-analysis showed that on a global scale, plant species diversity increased the soil microbial biomass, fungal-bacterial biomass ratio, and respiration in terrestrial ecosystems [8].…”

Section: Introductionmentioning

confidence: 99%

Impacts of Forest Management on the Biodiversity and Sustainability of Carya dabieshanensis Forests

Huang

Tong

et al. 2023

Forests

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Natural secondary Carya dabieshanensis forests comprise the natural wealth of the Dabie Mountains, which maintain the ecological balance of this region and enhance the incomes of farmers. However, forest ecosystems are being increasingly challenged due to increasing long-term anthropogenic development and management. Elucidating the impacts of management intensity and duration on the diversity and stability of vegetation communities in natural secondary Carya dabieshanensis forests is of great significance toward achieving sustainable forest management. For this study, we compared the effects of three forest management intensities (no management (CK), extensive management (EM), and intensive management (IM)), and five management durations (0, 3, 8, 15, and 20 y) on species diversity and the stability of vegetation communities (trees, shrubs, and herbaceous layers) of a Carya dabieshanensis forest. Our results revealed that the diversity of the vegetation communities continued to decline following the onset of management activities. The diversity, dominance, evenness, and richness indices of the vegetation communities decreased by 53.37%–62.77%, 46.04%–59.17%, 32.58%–53.55%, and 50.18%–51.30%, respectively, after 20 y of forest management. Intensive management translated to species diversity loss more so than extensive management. All vegetation communities of the forest stands under study were generally unstable; however, the stability they did have was not at risk under greater management intensity and duration, and neither did greater species diversity enhance it. This study provides new evidence to support the non-synchronicity of species diversity and community stability in forest resident vegetation communities. Since the species diversity and structural composition of tree layers have a positive effect on community stability, so we suggest that both extensive and intensive forest lands need to retain or replant more tree species other than Carya dabieshanensis.

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“…Affected by harsh environments (i.e., low soil water and nutrient availability, high soil salinity and frequent wind disturbance), ecosystem in the ELWNR is highly sensitive and fragile to environmental changes (Wang et al, 2021). In contrast, the ELWNR is a resource treasury of biodiversity in arid desert areas (Jiang et al, 2022), which has well-protected and typical riparian forests in northwest China. It offers an eligible place for investigating the spatial relationship between species diversity and soil properties.…”

Section: Introductionmentioning

confidence: 99%

Predicting spatial variability of species diversity with the minimum data set of soil properties in an arid desert riparian forest

Chen

et al. 2022

Front. Plant Sci.

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Species diversity has spatial heterogeneity in ecological systems. Although a large number of studies have demonstrated the influence of soil properties on species diversity, most of them have not considered their spatial variabilities. To remedy the knowledge gap, a 1 ha (100 m × 100 m) plots of arid desert riparian forest was set up in the Ebinur Wetland Nature Reserve (ELWNR) in the NW China. Then, the minimum data set of soil properties (soil MDS) was established using the Principal Component Analysis (PCA) and the Norm Value Determination to represent the total soil property data set (soil TDS). The Geo-statistics and two models (i.e., Random Forest/RF and Multiple Linear Regression/MLR) were used to measure the spatial variability of species diversity, and predict its spatial distribution by the soil MDS, respectively. The results showed that the soil MDS was composed of soil salt content (SSC), soil total phosphorus (STP), soil available phosphorus (SAP), soil organic carbon (SOC) and soil nitrate nitrogen (SNN); which represented the soil TDS perfectly (R2 =0.62). Three species diversity indices (i.e., Shannon–Wiener, Simpson and Pielou indices) had a high spatial dependence (C0/(C0+C)< 25%; 0.72 m ≤ range≤ 0.77 m). Ordinary kriging distribution maps showed that the spatial distribution pattern of species diversity predicted by RF model was closer to its actual distribution compared with MLR model. RF model results suggested that the soil MDS had significant effect on spatial distribution of Shannon–Wiener, Simpson and Pielou indices (Varex= 56%, 49% and 36%, respectively). Among all constituents, SSC had the largest contribution on the spatial variability of species diversity (nearly 10%), while STP had least effect (< 5.3%). We concluded that the soil MDS affected spatial variability of species diversity in arid desert riparian forests. Using RF model can predict spatial variability of species diversity through soil properties. Our work provided a new case and insight for studying the spatial relationship between soil properties and plant species diversity.

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Different contributions of plant diversity and soil properties to the community stability in the arid desert ecosystem

Cited by 9 publications

References 90 publications

Biochar addition can negatively affect plant community performance when altering soil properties in saline-alkali wetlands

Biochar addition can negatively affect plant community performance when altering soil properties in saline-alkali wetlands

Impacts of Forest Management on the Biodiversity and Sustainability of Carya dabieshanensis Forests

Predicting spatial variability of species diversity with the minimum data set of soil properties in an arid desert riparian forest

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