A comparison of species composition and community assemblage of secondary forests between the birch and pine-oak belts in the mid-altitude zone of the Qinling Mountains, China

Chai, Zongzheng; Wang, Dexiang

doi:10.7717/peerj.1900

Cited by 31 publications

(25 citation statements)

References 51 publications

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“…Constructing the extrapolated and rarefied curves produced patterns based on data for incidence and abundance, respectively. Species diversity (species richness and Shannon and Simpson diversities) was estimated as the mean of 200 bootstrap replications, with 95% confidence intervals drawn (Chao et al, 2014a ; Chai and Wang, 2016 ).…”

Section: Methodsmentioning

confidence: 99%

Changes in Species Diversity Patterns and Spatial Heterogeneity during the Secondary Succession of Grassland Vegetation on the Loess Plateau, China

et al. 2017

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Analyzing the dynamic patterns of species diversity and spatial heterogeneity of vegetation in grasslands during secondary succession could help with the maintenance and management of these ecosystems. Here, we evaluated the influence of secondary succession on grassland plant diversity and spatial heterogeneity of abandoned croplands on the Loess Plateau (China) during four phases of recovery: 1–5, 5–10, 10–20, and 20–30 years. The species composition and dominance of the grassland vegetation changed markedly during secondary succession and formed a clear successional series, with the species assemblage dominated by Artemisia capillaris→ Heteropappus altaicus→ A. sacrorum. The diversity pattern was one of low–high–low, with diversity peaking in the 10–20 year phase, thus corresponding to a hump-backed model in which maximum diversity occurring at the intermediate stages. A spatially aggregated pattern prevailed throughout the entire period of grassland recovery; this was likely linked to the dispersal properties of herbaceous plants and to high habitat heterogeneity. We conclude that natural succession was conducive to the successful recovery of native vegetation. From a management perspective, native pioneer tree species should be introduced about 20 years after abandoning croplands to accelerate the natural succession of grassland vegetation.

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Section: Methodsmentioning

confidence: 99%

Changes in Species Diversity Patterns and Spatial Heterogeneity during the Secondary Succession of Grassland Vegetation on the Loess Plateau, China

et al. 2017

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“…The Qinling Mountains with abundant species are a key region of biodiversity of global importance (Chai & Wang 2016a). Its geographical location in China is important and is influenced by climate and the distribution of vegetation (Wang et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Population structure and spatial pattern of predominant tree species in a pine–oak mosaic mixed forest in the Qinling Mountains, China

Kang

Zheng

Liu

et al. 2017

Journal of Plant Interactions

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This study investigated a typical pine-oak mosaic mixed forest in the Qinling Mountains, China. In the sample plot, the population structure and spatial distribution of the stems were analyzed for the predominant species, to identify the mechanisms of species coexistence and successional trends of the forest. The population structures of all species were bimodally distributed, with young trees (DBH <1 cm) more abundant than older trees. The population structures of Quercus aliena var. acuteserrata was bimodal and rather continuous. However, Pinus tabuliformis and Pinus armandii were discontinuously bimodal, with distinct size deficiencies. Q. aliena var. acuteserrata trees were clumped throughout the plot, although those of P. tabuliformis and P. armandii were clumped at small scales. Notable negative spatial associations between Q. aliena var. acuteserrata and P. tabuliformis were found at almost scales. P. armandii and Q. aliena var. acuteserrata were negatively spatially associated at small scales but positively associated at large scales. Our findings suggest that interspecific competition gradually develops among the predominant tree species. The dynamics of the pine-oak mosaic mixed forest formed a mosaic distribution of uniformly mixed types, with the slow infiltration of Q. aliena var. acuteserrata populations that would eventually establish a pure stand. ARTICLE HISTORY

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“…ResFinder ( 18 ) analysis identified multiple antibiotic resistance genes ( sul1 , sul2 , and tetC ), with some ( cmlA1h and aadA2 ) within the new class I integron In1410 ( 19 ). Average nucleotide identity (ANI) analysis ( 20 ) and in silico DNA-DNA hybridization (DDH) analysis ( 21 , 22 ) with the A. denitrificans type strain genome (GenBank accession number BCTQ00000000) showed that strain PR1 belongs to the same species (ANI, 99.33%; DDH, 94.60%; difference in %G+C content, 0.19).…”

Section: Genome Announcementmentioning

confidence: 99%

Complete Genome Sequence of Achromobacter denitrificans PR1

et al. 2017

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A comparison of species composition and community assemblage of secondary forests between the birch and pine-oak belts in the mid-altitude zone of the Qinling Mountains, China

Cited by 31 publications

References 51 publications

Changes in Species Diversity Patterns and Spatial Heterogeneity during the Secondary Succession of Grassland Vegetation on the Loess Plateau, China

Changes in Species Diversity Patterns and Spatial Heterogeneity during the Secondary Succession of Grassland Vegetation on the Loess Plateau, China

Population structure and spatial pattern of predominant tree species in a pine–oak mosaic mixed forest in the Qinling Mountains, China

Complete Genome Sequence of Achromobacter denitrificans PR1

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