Effects of clipping and fertilizing on the relationship between functional diversity and aboveground net primary productivity in an alpine meadow

Pan, Shi-Yu; Bin-Bin, KONG; Yao, Tian-Hua; Wei, Xinhua; Li, Yingnian; Zhi-Hong, and ZHU

doi:10.17521/cjpe.2015.0083

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…( 2005 ) found that long periods of grazing (or clipping) disturbance were able to greatly affect species diversity, by releasing a large area of survival space and increasing resource spatial heterogeneity, thereby reducing competition between species for light resources and shifting competition among plants for light to competition for underground nutrient and water resources, which ultimately increased species diversity in the community. Furthermore, these spaces released by clipping may also provide suitable conditions for species occupying the same niche to enter, whose successful entry can also increase species diversity (Pan et al., 2015 ).…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, we can see from the calculation for temporal stability that relative to species variance and covariance, intensive disturbance that perhaps increases the mean total community coverage will increase the temporal stability of communities (Yang et al., 2011 ). Our previous studies showed that the over‐compensatory plant growth after clipping (Xi et al., 2010 ) increased community‐level productivity (Pan et al., 2015 ). Consistent with this, in our current study, we found experimental evidence that clipping also simultaneously increases the temporal stability of communities in addition to increasing the species diversity of alpine meadow communities.…”

Section: Discussionmentioning

confidence: 99%

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Temporal stability and maintenance mechanisms of alpine meadow communities under clipping and fertilization

Wang

Guo

Sang

et al. 2021

Ecology and Evolution

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Negative effects of long‐term overgrazing have been seriously, grasslands temporal stability is an important ecological concern we need to research. Here, we performed a 12‐year‐long (2007–2018) two‐factor controlled experiment on Kobresia humilis meadow on the Tibetan Plateau. The manipulations included three clipping levels (no clipping, NC; moderate clipping, MC; heavy clipping, HC) and two fertilization levels (no fertilization, NF; fertilization, F). Our results revealed that the two clipping manipulations significantly increased the temporal stability of alpine meadow communities, whose significant increase was more pronounced under the MC than HC treatment. Species asynchrony had a significant positive correlation with species abundance along with compound community gradient. Moreover, asynchrony effects, portfolio effects, and facilitation interactions were all present in the communities under the six types of experimental treatment combinations. Additionally, a selection effect was detected in the compound communities, demonstrating characteristics that are common to different mechanisms. There were no significant differences in the effects of these mechanisms on community temporal stability between the NC–NF and MC–NF interactive communities. The portfolio effects predominated when clipping intensity was moderate under both fertilization and nonfertilization conditions. By contrast, in the compound communities, the selection effect predominated. In summary, we conclude that in meadow communities that undergo clipping and fertilization disturbances, facilitation interactions and weak interactions make a greater contribution toward maintaining their temporal stability.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Temporal stability and maintenance mechanisms of alpine meadow communities under clipping and fertilization

Wang

Guo

Sang

et al. 2021

Ecology and Evolution

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Field‐Based Estimation of Net Primary Productivity and Its Above‐ and Belowground Partitioning in Global Grasslands

et al. 2021

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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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Effects of clipping and fertilizing on the relationship between functional diversity and aboveground net primary productivity in an alpine meadow

Cited by 3 publications

References 8 publications

Temporal stability and maintenance mechanisms of alpine meadow communities under clipping and fertilization

Temporal stability and maintenance mechanisms of alpine meadow communities under clipping and fertilization

Field‐Based Estimation of Net Primary Productivity and Its Above‐ and Belowground Partitioning in Global Grasslands

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

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