The stoichiometry characteristics of soil and plant carbon, nitrogen, and phosphorus in different stand ages in <i>Camellia oleifera</i> plantation

Chenghua, 邓成华 Deng; Longlong, 吴龙龙 Wu; Yuting, 张雨婷 Zhang; Hang, 乔航 Qiao; Xingyuan, 刘兴元 Liu; Yajun, 胡亚军 Hu; Xiangbi, 陈香碧 Chen; Yirong, 苏以荣 Su; Xunyang, 何寻阳 He

doi:10.5846/stxb201809202055

Cited by 3 publications

(3 citation statements)

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“…Moreover, the stoichiometric ratios of soil C, N, and P were also significantly higher than those of mosses. This phenomenon is different from the ecological stoichiometric ratios between trees, shrubs and soil [57,58]. It is worth noting that the N content of mosses is not related to the soil TN content but is significantly positively correlated with the SOC and Olsen-P.…”

Section: Contents and Chemical Characteristics Of Soil-bryophyte C N And P In Different Restoration Stages After Karst Rocky Desertificatmentioning

confidence: 78%

Ecological stoichiometric characteristics of soil-moss C, N, and P in restoration stages of karst rocky desertification

et al. 2021

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Rocky desertification is the most serious ecological disaster in karst areas. Comprehensive control of rocky desertification plays an important role in promoting the economic development of karst areas. Studying the stoichiometric characteristics of mosses and soil can provide a powerful reference for the ecological restoration and evaluation of ecosystems experiencing rocky desertification. Soil and mosses were collected from sites representing different stages of ecological restoration (bare rock, grassland, shrubland, and secondary forest), and the contents of carbon (C), nitrogen (N), and phosphorus (P) were detected for ecological stoichiometric analysis. The results indicate that in different restoration stages following karst rocky desertification, the contents of soil organic carbon (SOC), total nitrogen (TN), and total phosphorus (TP) and the stoichiometric ratios in the shrub habitat are higher than those in the bare rock, grassland, and secondary forest habitats. However, the TP and available P contents were low at all stages (0.06 g/kg and 0.62 mg/kg, respectively). The N and P contents and stoichiometric ratios in the mosses showed no significant differences among the succession stages. The C contents in the mosses had a significant positive correlation with SOC and TN and TP content, and the P content had a significant positive correlation with the soil available P. However, there was a significant negative correlation between the C: N and C:P ratios of the bryophytes and soil C: N. In summary, during the process of natural restoration of karst rocky desertification areas, SOC and soil TN contents accumulate with each succession stage. Soil nutrients are higher in shrub habitats than in other succession stages. Mosses have a strong effect on improving soil nutrients in rocky desertification areas.

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Section: Contents and Chemical Characteristics Of Soil-bryophyte C N And P In Different Restoration Stages After Karst Rocky Desertificatmentioning

confidence: 78%

Ecological stoichiometric characteristics of soil-moss C, N, and P in restoration stages of karst rocky desertification

et al. 2021

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“…smithii in high-elevation environments but also relates to the production of anti-stress mechanisms in plants under stressful environments. This mechanism requires plants to have higher nutritional investments in order to have a strong impact on the N:P ratio [51]. Therefore, the increase in the N and P contents in plants is a physiological and ecological characteristic of the resistance to environmental stress.…”

Section: Relationship Between Stoichiometric Ratios and Seasonal Vari...mentioning

confidence: 99%

Stoichiometric Characteristics of Abies georgei var. smithii Plants in Southeast Tibet

et al. 2023

Sustainability

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In order to elucidate the adaptation mechanisms of the stoichiometric characteristics of Abies georgei var. smithii in southeastern Tibet to different habitats, the spatial and temporal dynamics of the nutrient contents and stoichiometric ratios among the leaf, branch, stem, and root organs were analyzed on Sejila Mountain in southeastern Tibet at different elevations (3500 m, 3900 m, and 4300 m). The results show that (1) the C and K contents of the fir organs did not change significantly with increasing elevation in the same season, while the N and P contents showed an overall increasing trend with increasing elevation, with the C and N contents being the highest in the leaves. The distribution order was leaves > branches > roots > stem; the P and K content order in each organ was branches > leaves > roots > stem. (2) At the same elevation and in different seasons, the Abies georgei var. smithii organs showed a similar convergence in terms of nutrient storage and utilization strategies, and more nutrients were optimally allocated between the assimilated and stored organs in the alpine habitats, which represents a “trade-off” strategy. (3) Compared to the findings of the global-scale studies, this study area has low N, P, and K contents, and its growth is limited by both N and P. Due to physiological and nutrient balance constraints, the content of the N-limited elements in the plants is relatively stable, which is in line with the “limiting element stability hypothesis”. (4) Principal component analysis showed that the influence of environmental factors on the stoichiometric characteristics of the different organs of Abies georgei var. smithii had a spatial scale effect, and that Abies georgei var. smithii demonstrated increased accumulation of N and P contents when subjected to environmental stress, which promoted the domestication and adaptation of the plant, enabling it to show good nutrient accumulation capacity and good adaptation strategies even at high elevation; thus, it has become a pioneer tree species at high elevations. This research work shows that the resilient adaptation of Abies georgei var. smithiir to environmental change has led to differences in the nutrient uptake and use efficiency and the adaptation patterns of the organs at different altitudinal gradients, with each organ adapting to habitat changes by adjusting its nutrient storage strategy between habitats.

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“…There are three generations of C. equisetifolia plantation in the forest farm that were planted in 1987 (first rotation plantation, FCP), 2011 (second rotation plantation, SCP), and 2014 (third rotation plantation, TCP). Due to the long growth period of the arbor and field condition, the method of "space replacing time" is often applied in forestry research (Shi et al, 2018;Deng et al, 2019).…”

Section: Research Plot and Sample Collectionmentioning

confidence: 99%

nifH Gene Sequencing Reveals the Effects of Successive Monoculture on the Soil Diazotrophic Microbial Community in Casuarina equisetifolia Plantations

Zhou

Pokhrel

et al. 2021

Front. Plant Sci.

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The growth and productivity of Casuarina equisetifolia is negatively impacted by planting sickness under long-term monoculture regimes. In this study, Illumina MiSeq sequencing targeting nifH genes was used to assess variations in the rhizospheric soil diazotrophic community under long-term monoculture rotations. Principal component analysis and unweighted pair-group method with arithmetic means (UPGMA) clustering demonstrated distinct differences in diazotrophic community structure between uncultivated soil (CK), the first rotation plantation (FCP), the second rotation plantation (SCP), and the third rotation plantation (TCP). Taxonomic analysis showed that the phyla Proteobacteria increased while Verrucomicrobia decreased under the consecutive monoculture (SCP and TCP). The relative abundance of Paraburkholderia, Rhodopseudomonas, Bradyrhizobium, Geobacter, Pseudodesulfovibrio, and Frankia increased significantly while Burkholderia, Rubrivivax, and Chlorobaculum declined significantly at the genus level under consecutive monoculture (SCP and TCP). Redundancy analysis (RDA) showed that Burkholderia, Rubrivivax, and Chlorobaculum were positively correlated with total nitrogen and available nitrogen. In conclusion, continuous C. equisetifolia monoculture could change the structure of diazotrophic microbes in the rhizosphere, resulting in the imbalance of the diazotrophic bacteria population, which might be a crucial factor related to replanting disease in this cultivated tree species.

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The stoichiometry characteristics of soil and plant carbon, nitrogen, and phosphorus in different stand ages in Camellia oleifera plantation

Cited by 3 publications

References 0 publications

Ecological stoichiometric characteristics of soil-moss C, N, and P in restoration stages of karst rocky desertification

Ecological stoichiometric characteristics of soil-moss C, N, and P in restoration stages of karst rocky desertification

Stoichiometric Characteristics of Abies georgei var. smithii Plants in Southeast Tibet

nifH Gene Sequencing Reveals the Effects of Successive Monoculture on the Soil Diazotrophic Microbial Community in Casuarina equisetifolia Plantations

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