Effects of long-term planting on PhytOC storage and its distribution in soil physical fractions in Moso bamboo forests in subtropical China

Huang, Chengpeng; Li, Yongchun; Jin, Lin; Gong, Xiaoqiang; Wu, Jiaping; Dong, Dan; Chang, Scott X.; Jiang, Peikun

doi:10.1007/s11368-020-02570-x

Cited by 4 publications

(3 citation statements)

References 47 publications

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“…And soil phytolith content and PhytOC storage of vine forest construction were the lowest, which can be attributed to the fact that the vine species planted, L. japonica , is an evergreen plant with little litters. Soil PhytOC content not only can be affected obviously by vegetation type (Huang et al, 2020), vegetation developmental stage (Epstein, 1994; Yang et al, 2015), and vegetation productivity (Song et al, 2012; Zuo et al, 2014), but also is closely related to phytolith production capacity of plant (Yang et al, 2016), carbon fixation capability of phytoliths and stability of PhytOC (Alexandre et al, 1997). As expected, in the present study, there were significant differences in soil PhytOC content (Figure 5) and storage (Figure 6) between kinds of planting measures.…”

Section: Discussionmentioning

confidence: 99%

“…Changes in soil carbon pool happed mainly by the storage variations of soil organic carbon (SOC) (Guo et al, 2015; Post & Kwon, 2000). In view of this, increasing soil stable SOC pool is of great significance for reducing atmospheric CO 2 concentrations and has attracted great attention from global scientists (Huang et al, 2020; Li, Huang, et al, 2021; Pan et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Response of soil phytolith occluded organic carbon accumulation to long‐term vegetation restoration in Southwest China karst

et al. 2022

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Aboveground vegetation can significantly affect soil PhytOC (phytolith occluded organic carbon) accumulation. To clarify the response of soil PhytOC accumulation to long‐term vegetation restoration in Southwest China karst, the four typical vegetation restoration engineering types of tree, shrub, vine forest, and grassland construction including seven species planting measures carried out 28–31 years ago were selected as study objects. And studies on their effects on soil PhytOC content and storage were conducted. Results showed that long‐term vegetation restorations obviously increased soil PhytOC accumulation and changed the proportion of soil PhytOC to total soil organic carbon. Among the different engineering types or species planting measures of vegetation restoration, there were significant or extremely significant differences in effects on soil PhytOC accumulation. Among the four types of restoration engineering, the tree forest construction had the best increase effect on soil PhytOC accumulation. And among the seven kinds of planting measures, the increased effect on soil PhytOC accumulation of Tectona grandis ('teak' an angiosperm tree species) planting was the highest. Vegetation biomass and litters were the key influencing factors on soil PhytOC accumulation. Soil C:P and N:P had significant effects on soil PhytOC accumulation by changing aboveground vegetation biomass and litters. Human activities could significantly change soil PhytOC content and storage, and reducing human activities of tilling and harvesting would be beneficial to soil PhytOC accumulation. The present results not only provided scientific bases for the vegetation rehabilitation of increasing soil PhytOC accumulation in outhwest China karst but also were great of significance in promoting stable soil C sequestration of the global terrestrial ecosystems.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Response of soil phytolith occluded organic carbon accumulation to long‐term vegetation restoration in Southwest China karst

et al. 2022

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“…Phytolith carbon sink, as a kind of long-term stable biogeochemical carbon sink mechanism, has raised the attention of global scientists. Although there still are some controversies in phytolith carbon sink potentials (Hodson, 2019), this kind of carbon sequestration mechanism in thousand years' timescale by plants has become a hot spot and an extremely important content for long-term stable carbon fixation research in terrestrial ecosystems (Song et al, 2014;Chen et al, 2018;Huang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Phytolith occluded organic carbon in Fagopyrum (Polygonaceae) plants: Insights on the carbon sink potential of cultivated buckwheat planting

Wang

Sheng

2022

Front. Plant Sci.

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Crop cultivation has great potential to result in a phytolith carbon sink and can play important roles in the long-term stable carbon sequestration of terrestrial ecosystems. Buckwheat, an important multigrain crop with a very long cultivation history, is widely planted around the world. The phytolith carbon sink potential of buckwheat planting is still limited in the in-depth understanding of biogeochemical carbon sequestration in croplands. In order to estimate the phytolith carbon sink potential of buckwheat planting, in the present study, six species including 17 populations of Fagopyrum plants were selected as study materials. Firstly, their phytoliths were extracted using the wet oxidation method; then, the phytolith-occluded organic carbon (PhytOC) contents were determined using the spectrophotometry method; finally, the phytolith carbon sink potential of buckwheat planting was estimated. Results showed the following: 1) The PhytOC content range of the six Fagopyrum species studied was 0.006%~0.038%, which was significantly lower than that of rice, wheat, sugarcane, and some cereal and oil crops. There were significant differences in total silicon, phytolith, and PhytOC content of Fagopyrum plants among the different species, different organs (root, stem, and leaf), and different living forms (annual, partly perennial, and completely perennial). There were significant positive relationships between PhytOC and phytolith content and between phytolith and total silicon content. 2) The average phytolith carbon sequestration rate of Fagopyrum esculentum and Fagopyrum tataricum planting was 2.62 × 10-3 and 1.17 × 10-3 t CO2 hm-2·a-1, respectively, being approximately equal to that of terrestrial shrub vegetation. 3) The global total amount of phytolith carbon sequestration of buckwheat planting reached 5,102.09 t CO2 in 2018, and the Chinese total amount of phytolith carbon sequestration of buckwheat cultivation was 624.79 t CO2 in 2020. The phytolith carbon sink of buckwheat planting had significant potential for playing obvious roles in the carbon cycle. The present results are of great significance in crop phytolith studies and provide important references for phytolith carbon sink potential estimation of farmland ecosystems.

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Changes in land use are associated with the accumulation of soil phytolith-occluded organic carbon

Wang

Wang²,

Sheng

2023

Ecological Indicators

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Effects of long-term planting on PhytOC storage and its distribution in soil physical fractions in Moso bamboo forests in subtropical China

Cited by 4 publications

References 47 publications

Response of soil phytolith occluded organic carbon accumulation to long‐term vegetation restoration in Southwest China karst

Response of soil phytolith occluded organic carbon accumulation to long‐term vegetation restoration in Southwest China karst

Phytolith occluded organic carbon in Fagopyrum (Polygonaceae) plants: Insights on the carbon sink potential of cultivated buckwheat planting

Changes in land use are associated with the accumulation of soil phytolith-occluded organic carbon

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