Nitrogen addition affects root growth, phosphorus and nitrogen efficiency of three provenances of<i>Schima superba</i>in barren soil

Rui, 张蕊 Zhang; Yi, 王艺 Wang; Guoqing, 金国庆 Jin; Zhichun, 周志春 Zhou; Zhongping, 丰忠平 Feng

doi:10.5846/stxb201210191453

Cited by 7 publications

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“…The threshold value indicated by the regression curve between the biomass and leaf N:P ratio was 16.3. When the leaf N:P ratio was lower than this value, plant growth was limited by N. In contrast, at a N:P ratio higher than 16.3, plant growth was limited by P. Leaf N:P ratios were considerably higher in the forest field sites, and these trees were limited by P. This may be caused by the very low available soil P in southern China 36 , 37 . However, different results were obtained from the experiment using one-year seedlings originating from the same provenances.…”

Section: Discussionmentioning

confidence: 93%

“…After long-term N deposition, the concentration of P, Ca, Mg, or other cations in soils tends to decrease 28 , 30 , and deficiency of these elements in plants is often observed 14 , 29 – 33 . Chronic increases in N deposition increase the soil and leaf N:P ratios, limiting plant growth 24 , 34 – 36 and photosynthetic rates 32 , 37 and leading to less diverse ecosystems. The abundance of nitrophilous species may increase 38 .…”

Section: Discussionmentioning

confidence: 99%

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Nitrogen and phosphorus stoichiometry of Schima superba under nitrogen deposition

Hong‐Wei

Chen

et al. 2018

Sci Rep

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In this study, leaf nitrogen (N) and phosphorus (P) stoichiometry were used as indicators of nitrogen saturation and to assess ecosystem nutrient limitations. Schima superba, a representative and widely distributed dominant evergreen broadleaf tree species of the subtropical forests in southern China, was used for this purpose. A nutrient-addition experiment and a field survey were conducted to test the responses of trees from different provenances to N deposition. The relationships between leaf N and P stoichiometry and biomass, nutrient limitation, and soil N:P were analyzed. There was a relationship between leaf N, P, N:P, soil N:P and plant dry biomass. A threshold leaf N:P ratio (16.3) divided the five provenances into different nutrient-limitation classes that were related to the soil N:P ratio or N deposition. The leaf N:P ratio provided an indication of P limitation. A higher soil P level reduced the N deposition effect on plant growth. The leaf N:P ratio of individuals from different provenances can be used as a predictor of nutrient limitation, and this was related to the soil N:P ratio.

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Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Nitrogen and phosphorus stoichiometry of Schima superba under nitrogen deposition

Hong‐Wei

Chen

et al. 2018

Sci Rep

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“…4A and B), its effects on soil microbes and plant roots would also be partially offset. In addition, in the initial stage of the experiment, NO 3 − as a nitrogen source promoted root growth and increased root biomass because of the simulated acid rain composed of sulphuric acid and nitric acid (Zhang et al 2013) (Fig. 4C).…”

Section: Effects Of Simulated Acid Rain On Soil Respirationmentioning

confidence: 93%

Effects of simulated acid rain on soil respiration and its component in a mixed coniferous-broadleaved forest of the three gorges reservoir area in Southwest China

Wang

et al. 2019

For. Ecosyst.

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Background: Soil respiration in forest ecosystems is an important part of the forest carbon (C) cycle. Studying the variation patterns of soil respiration under acid rain conditions is critically important for understanding forest C balance and performing rational forest management and operations. Methods: A split-plot design field experiment was performed in a mixed coniferous-broadleaved forest in the Three Gorges Reservoir Area of Jinyun Mountain, Chongqing from January 2016-January 2018. There were 4 main blocks; each was split into untrenched (UT) and trenched (T) treatments. Treatments with four gradient pH levels of 4.5 (control), 4.0, 3.25 and 2.5 were randomly assigned to the untrenched and trenched treatments. The soil CO 2 fluxes, soil temperature, and soil moisture content were evaluated under simulated acid rain. Additionally, the effects of soil properties (soil pH, organic C, C:N ratio, microbial biomass, and enzyme activity) on soil respiration were analysed. Results: The soil CO 2 fluxes exhibited seasonal variation trends. The annual mean soil respiration rates of the UTCK (control), UT4.0, UT3.25, and UT2.5 treatments in untrenched plots were 1.

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“…Compared with other tree species, S. superba has the advantage of ecological fire prevention function, and is listed as one of the important and high-quality tree species for afforestation in southern China (Zhang et al. 2013 ). In recent years, as more and more data have been uploaded to the NCBI GenBank, it has provided more information on the phylogeny of Schima superba .…”

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confidence: 99%

Complete chloroplast genome sequence of Schima superba (Teaceae)

Zhang

et al. 2021

Mitochondrial DNA Part B

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Schima superba is the dominant species of subtropical evergreen broad-leaved forest which has the characteristics of ecological fire prevention function. In this study, we report the complete chloroplast genome sequence of S. superba . The cp genome was 157,205 bp in length with a GC content of 37.40%, including a large single-copy (LSC 87,161 bp), a small single-copy (SSC 18,092 bp), and a pair of inverted repeats (IR 25,976 bp). The genome encoded 133 functional genes, including 88 protein-coding genes, 37 tRNA genes, and 8 rRNA genes. The phylogenetic analysis showed that S. superba was closely related to Schima sinensis , Schima multibracteata , Schima crenata , and Schima remotisertata .

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Nitrogen addition affects root growth, phosphorus and nitrogen efficiency of three provenances ofSchima superbain barren soil

Cited by 7 publications

References 0 publications

Nitrogen and phosphorus stoichiometry of Schima superba under nitrogen deposition

Nitrogen and phosphorus stoichiometry of Schima superba under nitrogen deposition

Effects of simulated acid rain on soil respiration and its component in a mixed coniferous-broadleaved forest of the three gorges reservoir area in Southwest China

Complete chloroplast genome sequence of Schima superba (Teaceae)

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