The vegetation history of Qinling Mountains, China

Zhao, Xiaoyan; Ma, Chaoqun; Liu, Xiao

doi:10.1016/j.quaint.2013.10.054

Cited by 35 publications

(28 citation statements)

References 13 publications

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“…• 04 E) is located in the southwest of Henan Province, east of Qinling Mountains and on the southern slope of the Funiu Mountains (Figure 1). Baotianman Nature Reserve is located between a northern subtropical climate and a warm temperate climate [56], where the deciduous broad-leaved forest ecosystems are considered to be more sensitive to disturbances and susceptible to climate changes, especially global warming [57]. TBDF-BTM has a continental monsoon climate with four distinctive seasons.…”

Section: Site Descriptionmentioning

confidence: 99%

Variation in Soil Methane Fluxes and Comparison between Two Forests in China

Wei

Peng

Liu

et al. 2018

Forests

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Methane (CH 4) is a vital greenhouse gas with a 28-fold higher global warming potential than carbon dioxide when considering a molar basis for the time horizon of 100 years. Here, we investigated the variation of soil CH 4 fluxes, soil physiochemical properties, and CH 4-related bacteria community composition of two forests in China. We measured CH 4 fluxes using static chambers and analyzed soil bacterial communities using next-generation high-throughput sequencing in a temperate broad-leaved deciduous forest at Baotianman Nature Reserve (TBDF-BTM) and a tropical rainforest at Jianfengling National Natural Reserve (TRF-JFL). Our results showed that the soils from both sites were CH 4 sinks. Significant variation in soil CH 4 fluxes was found at TBDF-BTM exclusively, while no seasonal variation in the CH 4 uptake was observed at TRF-JFL. The CH 4 fluxes at TBDF-BTM were substantially higher than those at TRF-JFL during all seasons. One genus of methanotrophs and three genera of methylotrophs were detected at both sites, though they had no direct relationship with soil CH 4 fluxes. Water-filled pore space and soil total carbon content are the main factors controlling the soil CH 4 fluxes at TBDF-BTM. At TRF-JFL, the soil CH 4 fluxes showed no significant correlations with any of the soil properties. This study improves our understanding of soil CH 4 fluxes and their influencing factors in forests in different climatic zones and provides a reference for future investigation of forest soil CH 4 fluxes, the forest ecosystem carbon cycle, and the forest CH 4 model.

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Section: Site Descriptionmentioning

confidence: 99%

Variation in Soil Methane Fluxes and Comparison between Two Forests in China

Wei

Peng

Liu

et al. 2018

Forests

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“…The vegetation of, and environmental change, in the Qinling Mountains have long been of academic interest due to the unique geographical location of the mountains (Yu et al 2014;Zhao et al 2014). We conducted a field survey at the Qinling National Forest Ecosystem Research Station (Huoditang forest) and adjacent forests in Ningshaan County, China (Figure 1).…”

Section: Study Sitementioning

confidence: 99%

Environmental influences on the successful regeneration of pine-oak mixed forests in the Qinling Mountains, China

Chai

Wang

2015

Scandinavian Journal of Forest Research

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Understanding the factors that allow the successful regeneration of species is a key step toward the conservation and management of forests. In this study, canonical correspondence analysis was used to examine the relationships between the distribution of the regenerating species in pine-oak mixed forests and 18 environmental factors of topography, soil properties, and forest characteristics in seedlings and saplings in the Qinling Mountains in China. A generalized additive model was used to fit the response of the density of the regenerating species to the various environmental factors. Variation partitioning in both seedling and sapling stories indicated that the order of importance was soil properties> forest characteristics > topography. The distribution of seedlings and saplings was mainly influenced by slope gradient, shrub cover, and available phosphorus. Herb cover and total-nitrogen level were major environmental factors affecting the density of the regenerating seedlings, but total-potassium level and elevation were significant A c c e p t e d M a n u s c r i p t variables for saplings. Not all seedlings were able to establish successfully, perhaps due to stress from the external environment and the heterogeneity of the light availability in the understory as the forest developed. Appropriate thinning of stands with higher densities and closed canopies is expected to produce gaps and promote the natural regeneration of pine-oak mixed forests in the Qinling Mountains. Key words: Canonical correspondence analysis；Generalized additive model; Pinus tabulaeformis Carr.; Pinus armandii Franch.; Quercus aliena var. acutiserrata Maxim.

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“…The hypothesis concerning the evolutionary history of the A. chensiensis complex during the Quaternary is also strongly supported by the fossil records. Fossil pollen of Abies showed an obvious decrease in accordance with a change from a cold and humid to warm and dry climate in central China, whereas there was an increase in other forest plant species which prefer warm and dry environments (Zhao, Ma & Xiao, ).…”

Section: Discussionmentioning

confidence: 99%

Species delimitation and phylogeography of theAbies chensiensiscomplex inferred from morphological and molecular data

Shao

Xiang

2015

Bot J Linn Soc

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Species delimitation in the Abies chensiensis complex, consisting of A. chensiensis, A. recurvata, A. ernestii and A. ernestii var. salouenensis, has been the subject of a long‐term dispute, as various taxonomic combinations have been proposed. We combined different lines of evidence, including morphological characters and mitochondrial and plastid DNA sequence data, to assess species delimitation. Plastid DNA sequence variation was highly consistent with the morphological result and separated A. recurvata from the other three taxa, but the mitochondrial DNA genealogy was more strongly related to geographical distribution rather than species delimitation, as proposed in previous studies. On the basis of morphological characters and plastid DNA sequence variation, the current species status of A. recurvata was well supported, and we also accepted A. ernestii and A. ernestii var. salouenensis as varieties of A. chensiensis. Furthermore, the phylogeographical history of A. chensiensis was surveyed by molecular data and ecological niche modelling. On the basis of molecular data, the current phylogeographical pattern of the A. chensiensis complex was probably shaped by recent rapid expansions from multiple refugia in the Hengduan Mountains and habitat contraction after the last glaciation. This hypothesis was supported by the results of ecological niche modelling and previous fossil records. Our findings suggest that these fir taxa might have continued to expand their range after the largest glaciation until the end of the last glaciation, but have contracted since then with the increasing temperature and habitat changes. © 2014 The Linnean Society of London, Botanical Journal of the Linnean Society, 2015, 177, 175–188.

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The vegetation history of Qinling Mountains, China

Cited by 35 publications

References 13 publications

Variation in Soil Methane Fluxes and Comparison between Two Forests in China

Variation in Soil Methane Fluxes and Comparison between Two Forests in China

Environmental influences on the successful regeneration of pine-oak mixed forests in the Qinling Mountains, China

Species delimitation and phylogeography of theAbies chensiensiscomplex inferred from morphological and molecular data

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