Nitrogen and carbon cycling associated with litterfall production in monoculture teak and mixed species teak and flueggea stands

Vigulu, Vaeno; Blumfield, Timothy John; Reverchon, Frédérique; Bai, Shahla Hosseini; Xu, Zhihong

doi:10.1007/s11368-019-02275-w

Cited by 18 publications

(9 citation statements)

References 59 publications

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“…The correlations observed among soil and litterfall δ 15 N and climatic factors indicated that the δ 15 N variations were mainly a response to climatic factors, which was consistent with the positive correlations between other litterfall properties, such as LM and the climatic factors. Other studies have also related the variations in litterfall production to the climatic factors leading to govern the nutrient availability and soil moisture (Nadelhoffer et al 1983;Davis et al 2004;Pavón et al 2005;Vigulu et al 2019). Overall, we think that the variations in the δ 15 N were more indicative of the longer-term N limitation than the addition of ashes enriched in 15 N to soil.…”

Section: Discussionmentioning

confidence: 55%

“…The fluctuations in soil N pools after prescribed burning might alter litterfall mass production (LM) through influencing the enzymes involved in photosynthesis (Evans 1989;Cruz et al 2003;Waring and Running 2010;Vigulu et al 2019). The photosynthesis also varies seasonally and reflects the climatic factors and long-term N and water limitations (Pessarakli 2016).…”

Section: Introductionmentioning

confidence: 99%

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Short-term carbon and nitrogen dynamics in soil, litterfall and canopy of a suburban native forest subjected to prescribed burning in subtropical Australia

Tahmasbian

Nguyen

et al. 2019

J Soils Sediments

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Purpose This study aimed to understand the mechanisms of the variations in carbon (C) and nitrogen (N) pools and examine the possibility of differentiating the burning effects from seasonal and pre-existed N limitations in a native suburban forest ecosystem influenced by prescribed burning in subtropical Australia. Materials and methods Soil and litterfall samples were collected from two study sites from 1 to 23 months since last burnt. Soil labile C and N pools, soil C and N isotopic compositions (δ 13 C and δ 15 N), litterfall mass production (LM), and litterfall total C, total N, δ 13 C and δ 15 N were analysed. In-situ gas exchange measurements were also conducted during dry and wet seasons for Eucalyptus baileyana and E. planchoniana. Results and discussionThe results indicated that labile C and N pools increased within the first few months after burning, with no correlations with climatic factors. Therefore, it was possible that the increase was due to the burning-induced factors such as the incorporation of ashes into the soil. The highest values of soil and litterfall δ 15 N, observed when the study was commenced at the experimental sites, and their high correlations with climatic factors were indicative of long-term N and water limitation. The 13 C signals showed that soil N concentrations and climatic factors were also two of the main factors controlling litterfall and foliage properties mainly through the changes in photosynthetic capacity and stomatal conductance. Conclusions Long-term soil N availabilities and climatic factors were the two of the main driving factors of C and N cycling in the studied forest sites. Further studies are needed to compare soil and litterfall properties before and after burning to profoundly understand the effects of prescribed burning on soil labile C and N variations.

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Section: Discussionmentioning

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Short-term carbon and nitrogen dynamics in soil, litterfall and canopy of a suburban native forest subjected to prescribed burning in subtropical Australia

Tahmasbian

Nguyen

et al. 2019

J Soils Sediments

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“…Our study showed that revegetation significantly increased soil TN. The quality and quantity of litterfall inputs and vegetation cover types are linked to soil TN and SOC (Vitousek et al 1994;Vigulu et al 2019). Increased SOM inputs to the soil result in stimulation of microbial biomass and activity, which in turn increased soil N pools (Liu et al 2019).…”

Section: Changes In Soil Tn Following Riparian Zone Revegetationmentioning

confidence: 99%

“…In our study, woody species might have provided optimal shade leading to accelerated litter decomposition which would explain increased soil N pools. Litter quality also drives N return to soil (Seneviratne 2000;Vigulu et al 2019). Litter in communities with N fixing species usually has soil with high N concentrations (low C: N ratio) due to their ability to fix N (Xu et al 2014;Jin et al 2016).…”

Section: Changes In Soil Tn Following Riparian Zone Revegetationmentioning

confidence: 99%

A global meta-analysis shows soil nitrogen pool increases after revegetation of riparian zones

Omidvar

Nguyen

et al. 2021

J Soils Sediments

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Sustainable management of riparian zone soils is required to ensure the health of natural ecosystems and maintenance of soil nitrogen (N) pools and soil N cycling. However, the effect of revegetation type and age on soil N pools remains poorly understood. Materials and methodsThis study compiled data from published articles to understand the effects of revegetation types and age on soil total N (TN) and soil inorganic N (NH 4 + -N, and NO 3 --N) using a meta-analysis. We extracted 645 observations from 52 published scientific articles. Results and discussionThe revegetation of riparian zones led to a significant increase of soil TN (mean effect size: 11.5%; 95% CI: 3.1% and 20.6%). Woodland increased soil TN significantly by 14.0%, which was associated with the presence of N fixing species and high litter inputs. Soil NH4 + -N concentration significantly increased (mean effect size: 20.1%; 95% CI: 15.1% and 25.4%), whereas a significant decrease in soil NO 3 --N (mean effect size: -21.5%; 95% CI: -15.0% and -27.5%) was observed. Of the revegetation types considered in this paper, NO 3 --N concentration in soil followed the order: grassland < shrubland < woodland, suggesting that woodland might be more efficient in soil NO 3 --N retention than grassland. The high plant N uptake and accelerated NO 3 --N leaching in grassland could be related to the decreased soil NO 3 --N in grassland compared with other revegetation types.Revegetation significantly decreased soil moisture by (mean effect size: -7.9%; 95% CI: -3.3% and -12.2%) 2 compared with the control, which might be associated with the selection of exotic species as dominant vegetation in the riparian zone. Soil TN increased in revegetation ages between 10 and 40 years following revegetation and was related to increased soil organic carbon inputs within those ages following the establishment. ConclusionsThis study provides insight into influence of different vegetation types and age on soil N pools and soil moisture. This study also highlights the importance of revegetation in riparian zones to increase soil TN.

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“…As a consequence, in legume‐containing and fertilized ecosystems δ 15 N values could decrease even if the N cycling does not become tighter. Because the δ 15 N values of litterfall reflect that of the soil (Ibell et al, 2013), they will change in the same direction as those of the soil (Reverchon et al, 2015; Vigulu et al, 2019). Besides resulting from a more open N cycle, higher δ 15 N values in litterfall might, however, also indicate that the plants take up N from greater soil depth, because the δ 15 N values usually increase with increasing depth (Högberg, 2008) instead of reflecting a more open N cycling.…”

Section: Introductionmentioning

confidence: 99%

Does biochar contribute to close nutrient cycles of tree plantations on degraded Ultisols in the Ecuadorian Amazonia?

Sarango

Manosalvas

Wilcke

2022

Soil Use and Management

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The use of biochar is expected to improve soil fertility and close nutrient cycles in degraded strongly weathered tropical soils. We, therefore, hypothesized that biochar amendment to tree plantations (a) increases nutrient fluxes with litterfall alone and with mineral fertilizer plus lime and (b) reduces N losses reflected by lower δ 15 N values of litterfall and soils than in unamended controls. We grew the native leguminous Schizolobium parahyba var. amazonicum (Ducke) Barneby and the exotic Gmelina arborea Roxb at two sites. We used a replicated full factorial split-split plot design of amendment of mineral fertilizer plus lime, 3 and 6 t ha −1 biochar, and a control. We collected litterfall biweekly (2012)(2013) and topsoil samples (0-0.25 m) in 2009 before tree planting, in 2011 and 2013. Fertilizer plus lime increased the mean annual concentrations of P, Ca and Zn in litterfall but decreased that of Mn. At the same time, fertilizer plus lime increased the annual fluxes of nutrients, Na and Al with litterfall. During the dry season, biochar decreased the N concentration in litterfall and the K flux with litterfall. During the rainy season, biochar increased the concentrations of Ca and Zn in litterfall and their fluxes with litterfall. Biochar did not influence the δ 15 N values of soil and litterfall after 51 months of tree growth. Fertilizer plus lime decreased the δ 15 N values of soil, because of the lower δ 15 N value of the used urea (−0.30‰) than the soil (4.5‰-7.8‰). Moreover, fertilizer plus lime increased the δ 15 N values of litterfall, possibly because of enhanced 14 N leaching from the N-rich canopies. The amendment of up to 6 t ha −1 biochar did not contribute to close nutrient cycles.

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Nitrogen and carbon cycling associated with litterfall production in monoculture teak and mixed species teak and flueggea stands

Cited by 18 publications

References 59 publications

Short-term carbon and nitrogen dynamics in soil, litterfall and canopy of a suburban native forest subjected to prescribed burning in subtropical Australia

Short-term carbon and nitrogen dynamics in soil, litterfall and canopy of a suburban native forest subjected to prescribed burning in subtropical Australia

A global meta-analysis shows soil nitrogen pool increases after revegetation of riparian zones

Does biochar contribute to close nutrient cycles of tree plantations on degraded Ultisols in the Ecuadorian Amazonia?

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