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31 results for “Cunninghamia”
Cunninghamia lanceolata A.Dietr. (BR0000009356047)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Cunninghamia lanceolata A.Dietr. (BR0000024499323)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Cunninghamia lanceolata A.Dietr. (BR0000024499408)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Cunninghamia lanceolata A.Dietr. (BR0000024499378)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Cunninghamia lanceolata A.Dietr. (BR0000024499354)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Cunninghamia lanceolata A.Dietr. (BR0000012109364)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Cunninghamia lanceolata A.Dietr. (BR0000024499385)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Cunninghamia lanceolata A.Dietr. (BR0000024499392)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Cunninghamia lanceolata A.Dietr. (BR0000024499361)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Data from: Tissue-specific carbon concentration, carbon stock, and distribution in Cunninghamia lanceolata (Lamb.) Hookplantations at various developmental stages in subtropical China
Key message Carbon (C) concentrations in Cunninghamia lanceolata (Lamb.) Hook plantations differed significantly among tissue types and were greater for aboveground than belowground tissues. Plantation C stock increased with developmental stage from young to mature to overmature, but at all stages the majority occurred as soil organic carbon (SOC) and was more influenced by belowground fine roots than by aboveground litterfall. Context Failing to account for tissue-specific variation in the C concentration can result in inaccurate forest C stock estimates. Aims We aimed to quantify the relative magnitudes of C stock for Chinese fir plantations at different developmental stages. Specifically, we focused on assessing tissue-specific C concentrations and C dynamics return of above- and belowground litterfall. Methods Carbon traits (C concentration, C flux, C stock and distribution at tree and ecosystem scales) were quantified in a chronosequence of Chinese fir (Cunninghamia lanceolata (Lamb.) Hook) monoculture plantation stands at young (10), mature (22), and overmature (34 years old) developmental stages. Results Carbon concentrations differed significantly among tissue types, with mean values of 48.5 ± 0.1% and 42.5 ± 0.2% for above- and belowground biomass, respectively. The aboveground tissue C concentration, tree- and plantation-scale C stock, and SOC stock depended on developmental stage. Carbon return in litterfall, tree C stock, and SOC increased from the young to the overmature stage. SOC stock accounted for the majority of plantation C stock at all developmental stages (78.3, 59.6 and 55.7% in the young, mature and overmature stages, respectively) and was more highly influenced by belowground fine roots than aboveground litterfall. Carbon stocks in Chinese fir plantations were 86, 129, and 153 t ha-2 at the young, mature, and overmature stages. Conclusion Prolonging Chinese fir rotation increases C sequestration potential and should be the focus of forest management strategies. The tissue-specific C concentrations provide detailed information for more accurate biomass C stock estimates for Chinese fir plantations and other subtropical coniferous forest. They indicate that current guidelines result in an overestimation of belowground biomass C stocks. Using the standard 0.47 biomass to C conversion factor, the belowground C stock would have been overestimated by 7.6-13.0% for the Chinese fir developmental stages investigated, while tree C stock would be underestimated by 0.08-3.24%. Therefore, developing species- and tissue-specific conversion factors are required for supporting C plantation and forest C accounting strategies.
Effects of long-term nitrogen addition on water use by Cunninghamia lanceolate in a subtropical plantation
<p>The deposition of reactive nitrogen (N) has substantially increased in subtropical regions due to human activities. However, the effects of long-term N addition on the water-use efficiency of subtropical forests are poorly understood. Here, we conducted an 11-year experiment in a subtropical Cunninghamia lanceolate plantation with four N-addition levels: N0, N1, N2, and N3 (equivalent to 0, 6, 12, and 24 g of N m-2 yr-1, respectively). A thermal dissipation probe system was used to calculate sap flow and plant biomass carbon was assessed by field investigation. The whole-plant water use and water-use efficiency were estimated. In addition, the δ13C of tree rings was used to indicate the plant intrinsic water-use efficiency. The results showed that N3 significantly increased the annual sap flow velocity, especially in summer and winter. Annual water use, plant growth, and water-use efficiency did not significantly differ among the N treatments, but water use tended to be higher in N3 than in N0. Furthermore, the reduction of δ13C between the pre-N treatment period and the post-N treatment period was 3.02%, 3.26%, 3.58%, and 5.28% for N0, N1, N2 and N3, respectively, which supported the inference that N addition could enhance water use. We conclude that long-term addition of high levels (but not of low levels) of N increased whole-plant water use in C. lanceolate plantations. Our results indicate that N deposition accompanied by high temperature and drought events may negatively affect water balance in subtropical forests.</p>
FIGURE 1 in A new species of Coccomyces on Cunninghamia lanceolata and its phylogenetic placement based on multi-gene analysis
FIGURE 1. Phylogenetic tree generated from maximum parsimony analysis of the combined ITS rDNA, LSU rDNA and mtSSU rDNA sequences, using Lophodermium piceae and Lirula microspora as the outgroups. Bootstrap values of maximum parsimony more than 70% are shown above the respective branches. Bayesian posterior probabilities more than 0.95 are marked below the branches.
FIGURE 3 in A new species of Coccomyces on Cunninghamia lanceolata and its phylogenetic placement based on multi-gene analysis
FIGURE 3. Coccomyces anhuiensis (Holotype, BJTC 201610): A. Ascoma in median vertical section; B. Detailed structure of an ascoma in vertical section; C. Paraphyses, discharged ascospores, mature asci with ascospores, and an empty ascus after ascospore discharged. D. Conidiomata in median vertical section.
FIGURE 2 in A new species of Coccomyces on Cunninghamia lanceolata and its phylogenetic placement based on multi-gene analysis
FIGURE 2. Coccomyces anhuiensis (Holotype, BJTC 201610) on Cunninghamia lanceolata: A. Ascomata on nature substrate; B. Mature ascoma observed under a dissecting microscope; C. Immature ascomata.
FIGURE 1 in Nigrospora guangdongensis sp. nov. from the needle of Cunninghamia lanceolata in China
FIGURE 1. Phylogram of the best maximum likelihood tree from an analysis of the combined ITS-TUB2-TEF1-α matrix of Nigrospora, with Arthrinium malaysianum (CBS 102053) as the outgroup. MP/ML bootstrap support values greater than 50 % are shown at the nodes. Ex-type strains are marked with *.
FIGURE 2 in Nigrospora guangdongensis sp. nov. from the needle of Cunninghamia lanceolata in China
FIGURE 2. Morphology of N. guangdongensis sp. nov. (BJFC-C006, holotype). A–C: Diseased needles of C. lanceolata. D: Colony morphology on PDA for 5 d. E–H: Conidiogenous cells and conidia. Scale bars: E–G = 20 μm
Data from: Tissue-specific carbon concentration, carbon stock, and distribution in Cunninghamia lanceolata (Lamb.) Hookplantations at various developmental stages in subtropical China
Open the record for dataset details and reuse information.
Effects of long-term nitrogen addition on water use by Cunninghamia lanceolate in a subtropical plantation
Open the record for dataset details and reuse information.
Figure 8 from: He J, Li D-W, Cui W-L, Zhu L-H, Huang L (2024) Morphological and phylogenetic analyses reveal three new species of Fusarium (Hypocreales, Nectriaceae) associated with leaf blight on Cunninghamia lanceolata in China. MycoKeys 101: 45-80. https://doi.org/10.3897/mycokeys.101.113128
Figure 8 Fusarium hunanense (HN33-8-2) A–D colonies on PDA, SNA, OMA, and CMA, respectively, after 5 days at 24 °C in the dark E sporodochia formed on PDAF–K aerial conidiophores, phialides, and conidia L–N sporodochial conidiophores, phialides, and conidia O, P macroconidia (3–6-septate) Q chlamydospore. Scale bars: 1,000 μm (E); 50 μm (F–H); 10 μm (I–Q).
Figure 9 from: He J, Li D-W, Cui W-L, Zhu L-H, Huang L (2024) Morphological and phylogenetic analyses reveal three new species of Fusarium (Hypocreales, Nectriaceae) associated with leaf blight on Cunninghamia lanceolata in China. MycoKeys 101: 45-80. https://doi.org/10.3897/mycokeys.101.113128
Figure 9 Symptoms on detached Cunninghamia lanceolata leaves (A) and shoots of tissue-culture seedlings of C. lanceolata (B) inoculated with isolates: Fusarium fujianense (LC14), F. fujikuroi (HN43-17-1), F. guizhouense (GZ7-20-1), F. concentricum (SJ1-10), and F. hunanense (HN33-8-2). Scale bar: 10 mm. C, Lesion length on detached C. lanceolata leaves inoculated with F. fujianense (LC14), F. fujikuroi (HN43-17-1), F. guizhouense (GZ7-20-1), F. concentricum (SJ1-10), and F. hunanense (HN33-8-2). Error bars represent standard deviation, and different letters indicate significant difference based on LSD's range test at P < 0.05 (n = 8).
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