Effects of nitrogen deposition and management practices on leaf litterfall and N and P return in a Moso bamboo forest

Zhang, Junbo; Lv, Jianhua; Li, Quan; Ying, Yibin; Peng, Changhui; Song, Xinzhang

doi:10.1007/s10533-017-0349-2

Cited by 33 publications

(12 citation statements)

References 29 publications

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“…Our previous studies at this site indicated that N deposition increased soil available N (NO 3 − -N and NH 4 + -N) (28) and that N released from the larger litterfall and N return (32) and faster decomposition of leaf litter and fine roots (26,27) produced more reaction substrates for nitrification and denitrification and thus increase N 2 O emissions. In the present study, N addition treatments significantly decreased the diversity of ammonia oxidizing archaea and denitrobacteria (norB) Previous studies in temperate woodlands found that N addition decreased soil CH 4 consumption by 14 to 51% (36,37), consistent with our results.…”

Section: Discussionmentioning

confidence: 82%

Nitrogen addition increased CO ₂ uptake more than non-CO ₂ greenhouse gases emissions in a Moso bamboo forest

et al. 2020

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Atmospheric nitrogen (N) deposition affects the greenhouse gas (GHG) balance of ecosystems through the net atmospheric CO2 exchange and the emission of non-CO2 GHGs (CH4 and N2O). We quantified the effects of N deposition on biomass increment, soil organic carbon (SOC), and N2O and CH4 fluxes and, ultimately, the net GHG budget at ecosystem level of a Moso bamboo forest in China. Nitrogen addition significantly increased woody biomass increment and SOC decomposition, increased N2O emission, and reduced soil CH4 uptake. Despite higher N2O and CH4 fluxes, the ecosystem remained a net GHG sink of 26.8 to 29.4 megagrams of CO2 equivalent hectare−1 year−1 after 4 years of N addition against 22.7 hectare−1 year−1 without N addition. The total net carbon benefits induced by atmospheric N deposition at current rates of 30 kilograms of N hectare−1 year−1 over Moso bamboo forests across China were estimated to be of 23.8 teragrams of CO2 equivalent year−1.

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Section: Discussionmentioning

confidence: 82%

Nitrogen addition increased CO ₂ uptake more than non-CO ₂ greenhouse gases emissions in a Moso bamboo forest

et al. 2020

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“…Soil CO 2 emissions are related to above-ground biomass, litter mass, underground root biomass, and soil biological factors (e.g., microorganisms and animals) (Zhang et al 2008a). Our previous studies showed that N input increased the amount of leaf litter (Zhang et al 2017), decomposition of leaf litter (Song et al 2015), fine root litter (Song et al 2017c), and soil microbial biomass (Li et al 2016) in the current study site, all of which contributed to oxidizing organic C to CO 2 (Steudler et al 1991;Emmett 1999), thus increasing CO 2 emissions. In this study, soil MBC significantly and positively correlated with CO 2 flux (Table 2), which supports the conclusion that N addition increased soil CO 2 emissions by increasing MBC.…”

Section: Effect Of N Addition On Soil Co 2 Ch 4 and N 2 O Fluxesmentioning

confidence: 61%

Management scheme influence and nitrogen addition effects on soil CO2, CH4, and N2O fluxes in a Moso bamboo plantation

Zhang

et al. 2021

For. Ecosyst.

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Background It is still not clear whether the effects of N deposition on soil greenhouse gas (GHG) emissions are influenced by plantation management schemes. A field experiment was conducted to investigate the effects of conventional management (CM) versus intensive management (IM), in combination with simulated N deposition levels of control (ambient N deposition), 30 kg N·ha− 1·year− 1 (N30, ambient + 30 kg N·ha− 1·year− 1), 60 kg N·ha− 1·year− 1 (N60, ambient + 60 kg N·ha− 1·year− 1), or 90 kg N·ha− 1·year− 1 (N90, ambient + 90 kg N·ha− 1·year− 1) on soil CO2, CH4, and N2O fluxes. For this, 24 plots were set up in a Moso bamboo (Phyllostachys edulis) plantation from January 2013 to December 2015. Gas samples were collected monthly from January 2015 to December 2015. Results Compared with CM, IM significantly increased soil CO2 emissions and their temperature sensitivity (Q10) but had no significant effects on soil CH4 uptake or N2O emissions. In the CM plots, N30 and N60 significantly increased soil CO2 emissions, while N60 and N90 significantly increased soil N2O emissions. In the IM plots, N30 and N60 significantly increased soil CO2 and N2O emissions, while N60 and N90 significantly decreased soil CH4 uptake. Overall, in both CM and IM plots, N30 and N60 significantly increased global warming potentials, whereas N90 did not significantly affect global warming potential. However, N addition significantly decreased the Q10 value of soil CO2 emissions under IM but not under CM. Soil microbial biomass carbon was significantly and positively correlated with soil CO2 and N2O emissions but significantly and negatively correlated with soil CH4 uptake. Conclusion Our results indicate that management scheme effects should be considered when assessing the effect of atmospheric N deposition on GHG emissions in bamboo plantations.

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“…These leaves fall the following spring, and new leaves quickly emerge. These new leaves have a life span of 2 years and are, therefore, replaced biennially in spring ( Zhang et al, 2017a ). Moso bamboo forests are characterized by alternating high and low recruitment years.…”

Section: Methodsmentioning

confidence: 99%

Biochar Amendment Alters the Nutrient-Use Strategy of Moso Bamboo Under N Additions

Gao

Zhang

et al. 2021

Front. Plant Sci.

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Nutrient resorption can affect plant growth, litter decomposition, and nutrient cycling. Although the effects of nitrogen (N) and biochar fertilizers on soil nutrient concentrations and plant nutrient uptake have been studied, an understanding of how combined applications of N and biochar affect plant nutrient resorption in plantations is lacking. In this study, we applied N (0, 30, 60, and 90 kg N ha−1 yr−1 defined as N0, N30, N60, and N90, respectively) and biochar (0, 20, and 40 t biochar ha−1 defined as BC0, BC20, and BC40, respectively) to the soil of a Moso bamboo plantation. We investigated the effects of these treatments on N and phosphorus (P) resorption by young and mature bamboo plants, as well as the relationships between nutrient resorption and leaf and soil nutrient concentrations. Young bamboo showed significantly greater foliar N resorption efficiency (NRE) and P resorption efficiency (PRE) than mature bamboo. N addition alone significantly increased the N resorption proficiency (NRP) and P resorption proficiency (PRP) but significantly decreased the NRE and PRE of both young and mature bamboo. In both the N-free and N-addition treatments, biochar amendments significantly reduced the foliar NRE and PRE of young bamboo but had the opposite effect on mature bamboo. Foliar NRE and PRE were significantly negatively correlated with fresh leaf N and P concentrations and soil total P concentration but significantly positively correlated with soil pH. Our findings suggest that N addition inhibits plant nutrient resorption and alters the nutrient-use strategy of young and mature bamboo from “conservative consumption” to “resource spending.” Furthermore, biochar amendment enhanced the negative effect of N addition on nutrient resorption in young bamboo but reduced the negative effect on that of mature bamboo under N-addition treatments. This study provides new insights into the combined effects of N and biochar on the nutrient resorption of Moso bamboo and may assist in improving fertilization strategies in Moso bamboo plantations.

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Effects of nitrogen deposition and management practices on leaf litterfall and N and P return in a Moso bamboo forest

Cited by 33 publications

References 29 publications

Nitrogen addition increased CO ₂ uptake more than non-CO ₂ greenhouse gases emissions in a Moso bamboo forest

Nitrogen addition increased CO ₂ uptake more than non-CO ₂ greenhouse gases emissions in a Moso bamboo forest

Management scheme influence and nitrogen addition effects on soil CO2, CH4, and N2O fluxes in a Moso bamboo plantation

Biochar Amendment Alters the Nutrient-Use Strategy of Moso Bamboo Under N Additions

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Effects of nitrogen deposition and management practices on leaf litterfall and N and P return in a Moso bamboo forest

Cited by 33 publications

References 29 publications

Nitrogen addition increased CO 2 uptake more than non-CO 2 greenhouse gases emissions in a Moso bamboo forest

Nitrogen addition increased CO 2 uptake more than non-CO 2 greenhouse gases emissions in a Moso bamboo forest

Management scheme influence and nitrogen addition effects on soil CO2, CH4, and N2O fluxes in a Moso bamboo plantation

Biochar Amendment Alters the Nutrient-Use Strategy of Moso Bamboo Under N Additions

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Nitrogen addition increased CO ₂ uptake more than non-CO ₂ greenhouse gases emissions in a Moso bamboo forest

Nitrogen addition increased CO ₂ uptake more than non-CO ₂ greenhouse gases emissions in a Moso bamboo forest