Management practices amplify the effects of N deposition on leaf litter decomposition of the Moso bamboo forest

AbstractForest soils play an important role in controlling global warming by reducing atmospheric methane (CH4) concentrations. However, little attention has been paid to how nitrogen (N) deposition may alter microorganism communities that are related to the CH4 cycle or CH4 oxidation in subtropical forest soils. We investigated the effects of N addition (0, 30, 60, or 90 kg N ha−1 yr−1) on soil CH4 flux and methanotroph and methanogen abundance, diversity, and community structure in a Moso bamboo (Phyllostachys edulis) forest in subtropical China. N addition significantly increased methanogen abundance but reduced both methanotroph and methanogen diversity. Methanotroph and methanogen community structures under the N deposition treatments were significantly different from those of the control. In N deposition treatments, the relative abundance of Methanoculleus was significantly lower than that in the control. Soil pH was the key factor regulating the changes in methanotroph and methanogen diversity and community structure. The CH4 emission rate increased with N addition and was negatively correlated with both methanotroph and methanogen diversity but positively correlated with methanogen abundance. Overall, our results suggested that N deposition can suppress CH4 uptake by altering methanotroph and methanogen abundance, diversity, and community structure in subtropical Moso bamboo forest soils.

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Mixed leaf litter decomposition and N, P release with a focus on Phyllostachys edulis (Carrière) J. Houz. forest in subtropical southeastern China

Acta Societatis Botanicorum Poloniae ◽

10.5586/asbp.2015.019 ◽

2015 ◽

Vol 84 (2) ◽

pp. 207-214 ◽

Cited By ~ 2

Author(s):

Lei Shi ◽

Shaohui Fan ◽

Zehui Jiang ◽

Lianghua Qi ◽

Guanglu Liu

Keyword(s):

Leaf Litter ◽

Litter Decomposition ◽

Moso Bamboo ◽

Leaf Litter Decomposition ◽

Southeastern China ◽

Litter Mixtures ◽

P Release ◽

Significant Difference ◽

N Release ◽

Phoebe Bournei

As an important non-wood forest product and wood substitute, Moso bamboo grows extremely rapidly and hence acquires large quantities of nutrients from the soil. With regard to litter decomposition, N and P release in Moso bamboo forests is undoubtedly important; however, to date, no comprehensive analysis has been conducted. Here, we chose two dominant species (i.e., Cunninghamia lanceolata and Phoebe bournei), in addition to Moso bamboo, which are widely distributed in subtropical southeastern China, and created five leaf litter mixtures (PE100, PE80PB20, PE80CL20, PE50PB50 and PE50CL50) to investigate species effects on leaf litter decomposition and nutrient release (N and P) via the litterbag method. Over a one-year incubation experiment, mass loss varied significantly with litter type (P < 0.05). The litter mixtures containing the higher proportions (≥80%) of Moso bamboo decomposed faster; the remaining litter compositions followed Olson’s decay mode well (R2 > 0.94, P < 0.001). N and P had different patterns of release; overall, N showed great temporal variation, while P was released from the litter continually. The mixture of Moso bamboo and Phoebe bournei (PE80PB20 and PE50PB50) showed significantly faster P release compared to the other three types, but there was no significant difference in N release. Litter decomposition and P release were related to initial litter C/N ratio, C/P ratio, and/or C content, while no significant relationship between N release and initial stoichiometric ratios was found. The Moso bamboo–Phoebe bournei (i.e., bamboo–broadleaved) mixture appeared to be the best choice for nutrient return and thus productivity and maintenance of Moso bamboo in this region.

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Nitrogen addition increased CO2 uptake more than non-CO2 greenhouse gases emissions in a Moso bamboo forest

Science Advances ◽

10.1126/sciadv.aaw5790 ◽

2020 ◽

Vol 6 (12) ◽

pp. eaaw5790 ◽

Cited By ~ 3

Author(s):

Xinzhang Song ◽

Changhui Peng ◽

Philippe Ciais ◽

Quan Li ◽

Wenhua Xiang ◽

...

Keyword(s):

Nitrogen Addition ◽

N Deposition ◽

Moso Bamboo ◽

Co2 Uptake ◽

Bamboo Forest ◽

N Addition ◽

Atmospheric N Deposition ◽

Biomass Increment ◽

Ecosystem Level ◽

Moso Bamboo Forest

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

Biogeochemistry ◽

10.1007/s10533-017-0349-2 ◽

2017 ◽

Vol 134 (1-2) ◽

pp. 115-124 ◽

Cited By ~ 13

Author(s):

Junbo Zhang ◽

Jianhua Lv ◽

Quan Li ◽

Yeqing Ying ◽

Changhui Peng ◽

...

Keyword(s):

Nitrogen Deposition ◽

Management Practices ◽

Moso Bamboo ◽

Bamboo Forest ◽

Leaf Litterfall ◽

Moso Bamboo Forest

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Simulated atmospheric nitrogen deposition inhibited the leaf litter decomposition of Cinnamomum migao H. W. Li in Southwest China

Scientific Reports ◽

10.1038/s41598-021-81458-3 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Xiao-Long Huang ◽

Jing-Zhong Chen ◽

Deng Wang ◽

Ming-Ming Deng ◽

Meng-Yao Wu ◽

...

Keyword(s):

Enzyme Activity ◽

Nutrient Cycling ◽

Leaf Litter ◽

Litter Decomposition ◽

Nutrient Release ◽

N Deposition ◽

Soil Enzyme ◽

Leaf Litter Decomposition ◽

Atmospheric Nitrogen ◽

N Input

AbstractAtmospheric nitrogen (N) deposition could affect various ecological processes in forest ecosystems, including plant litter decomposition and nutrient cycling. However, the mechanism of underlying litter decomposition and nutrient cycling of Cinnamomum migao under N deposition remains unclear. Therefore, we conducted a simulated N deposition experiment including four onsite treatments to assess the effects of N input on C. migao leaf litter decomposition, nutrient release, and soil enzyme activity. The results showed that simulated N deposition significantly increased the amount of total residual mass and lignin and cellulose, decreased the decomposition rate, and suppressed net nutrient release. N input increased C, N, and P ratios as decomposition progressed, and the proportion of mass remaining was positively correlated with the proportions of lignin and cellulose remaining at the later stage of decomposition. The differences in soil enzyme activity were primarily due to enzyme type and sampling time. We conclude that simulated N deposition significantly suppressed the leaf litter decomposition of C. migao by mainly altering the chemical properties and suppressing the decomposition of the organic matter in leaf litter. Lignin might have played an important role in the loss of leaf litter biomass at the later stage of decomposition.

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Effects of different forms of N deposition on leaf litter decomposition and extracellular enzyme activities in a temperate grassland

Soil Biology and Biochemistry ◽

10.1016/j.soilbio.2019.03.016 ◽

2019 ◽

Vol 134 ◽

pp. 78-80 ◽

Cited By ~ 5

Author(s):

Lili Dong ◽

Tao Sun ◽

Björn Berg ◽

Lili Zhang ◽

Quanquan Zhang ◽

...

Keyword(s):

Leaf Litter ◽

Litter Decomposition ◽

Enzyme Activities ◽

Extracellular Enzyme ◽

N Deposition ◽

Temperate Grassland ◽

Leaf Litter Decomposition ◽

Extracellular Enzyme Activities

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Leaf-Litter Decomposition Dynamic, Carbon Loss and Nutrient Return for Moso Bamboo Forest with Different Litter Mass Accumulation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.726-731.4222 ◽

2013 ◽

Vol 726-731 ◽

pp. 4222-4225 ◽

Cited By ~ 1

Author(s):

Yi Lin Tang ◽

Ben Zhi Zhou ◽

Xiao Gai Ge ◽

Xiao Ming Wang ◽

Qian Li

Keyword(s):

Soil Carbon ◽

Leaf Litter ◽

Surface Soil ◽

Moso Bamboo ◽

Basic Knowledge ◽

Carbon Pools ◽

Bamboo Forest ◽

Soil Carbon Pools ◽

Moso Bamboo Forest ◽

Mass Accumulation

To provide an important basic knowledge for the biogeochemical cycle of bamboo forest ecosystem, particularly the cycling of global carbon, we studied decomposition dynamics of leaf-litter with different mass accumulation in moso bamboo forest. Our study area located in Miaoshanwu nature reserve, Fuyang, Zhejiang province. Based on the survey, we concluded that: (1) the sequence of remaining mass of leaf-litter with different mass accumulation after 240 days' decomposition from the most to the least was in the following order: 30g (58.53%) > 60g (51.92%) > 90g (48.48%), implying that leaf-litter with more mass accumulation decomposed faster in the unit area. (2)The more accumulated leaf-litter lead to more TOC loss in leaf-litter which will not helpful for TOC increase on surface soil carbon pools. This implying that the faster leaf-litter decomposed, the less TOC increased on surface soil carbon pools in 240 day s' observation. (3)The concentration of N, P, K and Ca showed the similar tendency with initially increasing but decreasing gradually in the following stage and then increasing again in the next stage. And concentration of Mg, Fe, Cu and Zn increased gradually in the period of 0-240 days.

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