Carbon and Nutrient Transfer via Above- and Below-Ground Litter in Forests

Wu, Fuzhong; Xu, Zhenfeng; Yang, Wanqin

doi:10.3390/f13122176

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…In areas affected by landslides, soil organic carbon was likely the major limiting factor for soil formation and biological processes, as indicated by the significant decrease in soil organic carbon content (Dialynas et al, 2016). Moreover, K, Ca and Mg are macronutrient elements that play crucial roles in plant nutrient uptake and ecosystem functions, such as maintaining organism osmosis balance, improving water use efficiency, and decreasing water loss (Sardans and Penuelas, 2015;Tang et al, 2019;Hu and Lan, 2020;Wu et al, 2022). Our results revealed that the lower contents of AK, eCa, and eMg in areas affected by landslides than in unaffected areas suggested that earthquake-induced landslides might have influenced water balance in the plant-soil system.…”

Section: Earthquake-induced Landslides Affect Soil Nutrient Content A...mentioning

confidence: 99%

Impacts of vegetation restoration strategies on soil nutrients and stoichiometry of the earthquake-induced landslides in Jiuzhaigou, eastern Qinghai-Tibet Plateau

Huang,

Xian,

Long

et al. 2024

Front. Environ. Sci.

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Natural and artificial approaches are the mainly management strategy used in degraded lands restoration, while few studies examine the effect of the two strategies on soil nutrient properties in an earthquake-triggered degraded ecosystem. We compared soil chemical traits and major nutrient stoichiometry from areas following landslides that had undergone natural restoration (D. NR.) and artificial restoration (D. AR.), as well as neighboring undisturbed areas (Und.), following the 2017 magnitude 7.0 earthquake in Jiuzhaigou, eastern Qinghai-Tibet Plateau. The results showed that soil organic carbon (C), total nitrogen (N), available nitrogen (AN), available phosphorus (AP), exchangeable calcium (eCa), exchangeable magnesium (eMg), C/P, C/K, N/P, N/K, P/K, cation exchange capacity, and vegetation cover in landslides of D. NR. and D. AR. were lower than those in Und. land, while their pH and total potassium (K) concentration were higher. Compared to D. NR., most of these traits were higher in D. AR., except for the C/N, which was reduced in D. AR. Soil C was positively related to AN, C/K, N/P, N/K, P/K in each land type, while in D. NR., it was not related to N, AP, AK, eCa, eMg, C/N, although it was negatively related to P and K concentration. The findings demonstrated that vegetation restoration strategies could affect not only soil nutrient content but also the macronutrient stoichiometry (N, P, K). Furthermore, artificial restoration projects can enhance soil nutrient concentration and facilitate vegetation recovery more quickly than natural restoration, which is primarily driven by soil N rather than P or K.

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Section: Earthquake-induced Landslides Affect Soil Nutrient Content A...mentioning

confidence: 99%

Impacts of vegetation restoration strategies on soil nutrients and stoichiometry of the earthquake-induced landslides in Jiuzhaigou, eastern Qinghai-Tibet Plateau

Huang,

Xian,

Long

et al. 2024

Front. Environ. Sci.

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“…Previous studies of forest litterfall C storage have primarily focused on mechanistic explanations of the impacts of litterfall on soil organic C solidification [18,19] and on the transfer of nutrients such as nitrogen and phosphorus [20,21]. There are significant correlations between litterfall types, microbial efficiency, and soil organic carbon (SOC) [22].…”

Section: Introductionmentioning

confidence: 99%

Quantification and Proxy Indicators of the Carbon Pool in Urban Tree Litterfall: A Case Study of Urban Green Spaces in Beijing

Cao,

Li,

et al. 2024

Forests

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As major carbon (C) pools in cities, urban green spaces play a crucial role in reducing atmospheric carbon. To determine the importance of litterfall C storage in urban green spaces, we selected the leaf area index (LAI) as a proxy indicator for litterfall C density (LCD), and established a log-linear regression model between LCD and LAI to predict the annual litterfall C pool in large-scale urban green spaces using Sentinel-2 satellite remote sensing data. Forty-five sample units were randomly selected in typical urban green spaces in Beijing, China. A high-temperature combustion method was used to measure the LCD of the sampling units, and stepwise linear regression was used to filter the proxy indicator for LCD. The annual litterfall C pool in regions within the Fifth Ring Road was also estimated with inversion using remote sensing data. From 2015 to 2021, the estimated annual litterfall C pool was in the range of 4.5–5.8 × 1010 g, i.e., approximately 18.9% of the total C storage recorded for the urban green space, which was far greater than that observed in forest ecosystems. We concluded that the litterfall C pool in urban green spaces is seriously underestimated, and that urban tree litterfall has the potential to reduce greenhouse gas emissions if used as a carbon-neutral resource.

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Carbon and Nutrient Transfer via Above- and Below-Ground Litter in Forests

Abstract: Plants periodically shed more than 90% of their biomass production as above- and below-ground litter, including leaves, twigs, flowers, logs, roots and other tissues [...]

Cited by 2 publications

References 18 publications

Impacts of vegetation restoration strategies on soil nutrients and stoichiometry of the earthquake-induced landslides in Jiuzhaigou, eastern Qinghai-Tibet Plateau

Impacts of vegetation restoration strategies on soil nutrients and stoichiometry of the earthquake-induced landslides in Jiuzhaigou, eastern Qinghai-Tibet Plateau

Quantification and Proxy Indicators of the Carbon Pool in Urban Tree Litterfall: A Case Study of Urban Green Spaces in Beijing

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