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Liu, Qijing

doi:10.1023/a:1009705319128

Cited by 47 publications

(12 citation statements)

References 2 publications

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“…The establishment of the CNR has prevented the forest communities from experiencing large disturbances, such as clear cutting and land-use change (Liu 1997;Yang and Xu 2003;Liu et al 2005), as clearly shown by our comparisons of field data from 1963 and 2006. The total number of species recorded in 2006 were only slightly less than those counted in 1963 and, in general, similar patterns were found in the floral composition of the tree layer.…”

Section: Floral Compositionmentioning

confidence: 75%

“…Although the forest has been monitored by field investigations and satellite imagery during the past 10-28 years (Zhang et al 1994;Liu 1997;Jin et al 2005;Liu et al 2005;Li et al 2006), no long-term survey comparing the diversity patterns in the 1960s to the present status of CNR had been conducted before the study reported here. In 1963, Chen et al (1964 investigated the flora with the aim of characterizing the major forests in various vertical zones on the north slope of the CNR.…”

Section: Introductionmentioning

confidence: 99%

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Vascular diversity patterns of forest ecosystem before and after a 43-year interval under changing climate conditions in the Changbaishan Nature Reserve, northeastern China

Sang

Bai

2008

Plant Ecol

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The Changbaishan Nature Reserve (CNR) is the largest protected temperate forest in the world. It was established in 1960 to protect the virgin Korean pine (Pinus koraiensis) mixed hardwood forest, a typical temperate forest of northeast China. Studies of vascular diversity patterns on the north slope of the CNR mountainside forest (800-1700 m a.s.l.) were conducted in 1963 and in 2006. The aim of this comparison was to assess the long-term effects of the protected status on plant biodiversity during the intervening 43 years. The research was carried out in three forest types: mixed coniferous and broadleaved forest (MCBF), mixed coniferous forest (MCF), and sub-alpine coniferous forest (SCF), characterized by different dominant species. The alpha diversity indicted by species richness and the Shannon-Wiener index were found to differ for the same elevations and forest types after the 43-year interval, while the beta diversity indicated by the Cody index depicted the altitudinal patterns of plant species gain and loss. The floral compositional pattern and the diversity of vascular species were generally similar along altitudinal gradients before and after the 43-year interval, but some substantial changes were evident with the altitude gradient. In the tree layer, the dominant species in 2006 were similar to those of 1963, though diversity declined with altitude. The indices in the three forest types did not differ significantly between 1963 and 2006, and these values even increased in the MCBF and MCF. However, originally dominant species, such as Pinus koraiensis, tended to decline, the proportion of broadleaved trees increased, and the species turnover in the succession layers showed a trend to shift to higher altitudes. The diversity pattern of the understory fluctuated along the altitudinal gradient due to microenvironmental variations. A comparison of the alpha diversity indices among the three forest types reveals that the diversity of the shrub and herb layer decreased, and some rare and medicinal species disappeared. Meteorological records show that climate has changed significantly in this 43-year intervening period, and information collected from another field survey found that the most severe human disturbances to the CNR forests stemmed from the exploitation of Ginseng roots and Korean pine nuts.

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Section: Floral Compositionmentioning

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Vascular diversity patterns of forest ecosystem before and after a 43-year interval under changing climate conditions in the Changbaishan Nature Reserve, northeastern China

Sang

Bai

2008

Plant Ecol

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“…The mean temperature above 2000 m on Changbai Mountain is 3.3°C (Liu 1997). We report here the isolation of a P .…”

Section: Discussionmentioning

confidence: 99%

Psychrotrophic Pseudomonas mandelii CBS-1 produces high levels of poly-β-hydroxybutyrate

Jiang

Wang³

et al. 2013

SpringerPlus

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A novel facultative psychrotroph (strain CBS-1), which accumulates poly-β-hydroxybutyrate (PHB), was isolated from soil samples taken from Changbai Mountain, China. Phylogenetic analysis based on 16S rRNA sequence data and Biolog analysis identified strain CBS-1 as Pseudomonas mandelii. Transmission electron micrographs revealed abundant electron-transparent intracellular granules. 1H-nuclear magnetic resonance analysis revealed that the granules were composed of PHB. P. mandelii CBS-1 grew optimally at 20°C. When cultured aerobically for 48 h with sucrose as the sole carbon source, strain CBS-1 yielded a maximum cell density of 29.3 g/L cell dry weight and synthesized 22.3 g/L of PHB. The ability of strain CBS-1 to grow at a low temperature and rapidly synthesize high levels of PHB may reduce the costs of industrial PHB production.

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“…A wet and warm growing season occurs from June to August, while a relatively dry and cold season occurs from September to May [46]. The mean storm (wind > 17 m s −1 ) frequency ranges from 30 days year −1 at 774 m to 267 days year −1 at 2623 m [47]. Thus, we assume that the short duration of the summer monsoon and long, cold and dry winters are the main natural climatic conditions responsible for the distribution of these vegetation communities.…”

Section: Introductionmentioning

confidence: 99%

Variation in Stem Xylem Traits is Related to Differentiation of Upper Limits of Tree Species along an Elevational Gradient

Yang

Wang

Zhang

et al. 2020

Forests

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The distribution limits of many plants are dictated by environmental conditions and species’ functional traits. While many studies have evaluated how plant distribution is driven by environmental conditions, there are not many studies investigating xylem vessel properties with altitude, and whether these traits correlate with altitudinal distribution of tree. Here, we investigated the upper limits of distribution for ten deciduous broadleaf tree species from three temperate montane forest communities along a large elevational gradient on the north-facing slope of Changbai Mountain in Northeast China. We measured stem xylem traits associated with a species’ ability to transport water and resist freezing-induced cavitation that theoretically represent important adaptations to changes in climatic conditions along the elevational gradient. Hydraulically weighted vessel diameter (Dh) was negatively correlated with with the upper limit across the ten studied tree species; however, the correlation seems to be driven by the large differences between ring- and diffuse-porous tree species groups. The ring-porous tree species (e.g., Fraxinus mandshurica Rupr., Maackia amurensis Rupr. et Maxim., and Phellodendron amurense Rupr.) had considerably wider vessels than the diffuse-porous species and were all limited to low-elevation communities. The coefficient of variation (CV) for Dh was 0.53 among the 10 studied species, while the intraspecific analysis showed that the highest CV was only 0.22 among the 10 species. We found no evidence of a relationship between Dh and the upper limits across the seven diffuse-porous species. In contrast to elevation, hydraulic-related xylem traits had no clear patterns of change with precipitation, indicating that hydraulic functionality was largely decoupled from the influences of precipitation in the study area. This finding suggests that xylem traits are associated with altitudinal limits of species distribution, which is mostly evidenced by the contrasts between ring- and diffuse-porous species in xylem anatomy and their altitudinal distributions.

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Cited by 47 publications

References 2 publications

Vascular diversity patterns of forest ecosystem before and after a 43-year interval under changing climate conditions in the Changbaishan Nature Reserve, northeastern China

Vascular diversity patterns of forest ecosystem before and after a 43-year interval under changing climate conditions in the Changbaishan Nature Reserve, northeastern China

Psychrotrophic Pseudomonas mandelii CBS-1 produces high levels of poly-β-hydroxybutyrate

Variation in Stem Xylem Traits is Related to Differentiation of Upper Limits of Tree Species along an Elevational Gradient

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