Effects of abandonment management on soil C and N pools in Moso bamboo forests

Deng, Xu; Yin, Jiayang; Xu, Lin; Shi, Yongjun; Zhou, Guomo; Li, Yongfu; Chen, Guangsheng; Ye, Yuzhu; Zhang, Fagen; Zhou, Yongqiang; Xiong, Yulu

doi:10.1016/j.scitotenv.2020.138949

Cited by 18 publications

(11 citation statements)

References 50 publications

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“…These results were not consistent with previous investigations [20,38,39], in that this study area was also protected. However, the stability of TN did not translate to no changes in the soil N components; the soil N pool and N components were intimately related to the forest type [40,41]. Therefore, further research and experimentation is required to elucidate the specific changes in N components.…”

Section: Physicochemical Soil Propertiesmentioning

confidence: 99%

Long-Term Forest Conversion Affects Soil Stability and Humic Substances in Aggregate Fractions in Subtropical China

Meng

Zhao³

et al. 2022

Forests

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Soil aggregates are the basic structural components of soil, which are important factors that can predict erosion resistance. However, few researchers have investigated the effects of forest conversion on the stability of soil aggregates, particularly in subtropical forests. In this study, soils from various depths (0 to 30 cm) were collected from four forest types (transformed from broadleaved forests (BMF) to combined coniferous broadleaved (CBMF), Chinese fir (FF), and bamboo forests (BF)) to determine the impacts of forest conversion on the physical and chemical properties of soil, water-stable soil aggregates, and aggregate-associated humic substances. The results showed that forest conversion had no effects on the soil’s physical properties, or the humic substances in bulk soil, but had significant effects on soil aggregates. In addition, the conversion of broadleaved forest to Chinese fir forest increased the soil stability, and to bamboo forest, decreased the soil stability. Finally, the soil’s physicochemical properties were closely related to aggregate-associated humic substances. In summary, specific forest management measures should be applied to strengthen the positive impacts and reduce the negative impacts associated with forest conversion.

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Section: Physicochemical Soil Propertiesmentioning

confidence: 99%

Long-Term Forest Conversion Affects Soil Stability and Humic Substances in Aggregate Fractions in Subtropical China

Meng

Zhao³

et al. 2022

Forests

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“…This is attributed to the plant density becoming too low via thinning the mature bamboo by up to 33% (Table 1), resulting in less litter input and a reduced supply of soil nutrients [32]. Meanwhile, due to the bamboo growth characteristics, the new, and rapidly growing bamboo plants had a higher nutrient consumption rate compared to mature bamboo after three years [36]. Studies have also shown that, with an increased abundance of surface litter, microbial decomposition activities and the growth of understory vegetation increased, intensifying the demand for soil C and N [37].…”

Section: Effects Of Thinning Intensity On Soil C N and P Concentratio...mentioning

confidence: 99%

“…A probable reason is that the plant density of Moso bamboo forests under NT was too high, compared with MT and IT stands (Table 1), and the bottom bamboo root whip aged with the increase in the proportion of mature bamboo. Many dead roots and mature bamboo root whip decomposed, leading to the enhancement of microbial activity that in turn provided a large amount of organic matter for the deep soil and altered the soil pH (Supplementary, Table S1) [36]. The SOC in the deeper soil was greatly affected by plant root input [56].…”

Section: Changes In Soil C N and P Stocks And Stoichiometric Characte...mentioning

confidence: 99%

“…This study addressed the effects of three years of thinning on the soil C, N, and P stocks and ecological stoichiometric characteristics of Moso bamboo forests (Figure 7). However, the lack of long-term fixed-point monitoring data on the effects of thinning treatment on the stoichiometric processes of C, N, and P made it challenging to elucidate the average carbon cycling time of 21.35 years for Moso bamboo forests [36]. Future studies should include systematic and long-term monitoring of the effects of different thinning intensities on C, N, and P flows and balance in the bamboo ecosystem to provide scientific data that can support improvements in bamboo forest management and enhance soil fertility.…”

Section: Changes In Soil C N and P Stocks And Stoichiometric Characte...mentioning

confidence: 99%

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A Comparison of Soil C, N, and P Stoichiometry Characteristics under Different Thinning Intensities in a Subtropical Moso bamboo (Phyllostachys edulis) Forest of China

Jiang

Wang

et al. 2022

Forests

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Land management using suitable thinning intensities can promote the yield of Moso bamboo (Phyllostachys edulis) forests and alter the nutrient content and stoichiometric characteristics within the soil. However, the effects of different thinning intensities on soil carbon (C), nitrogen (N), and phosphorus (P) stoichiometry of P. edulis forests have not been comprehensively studied. Here, we evaluated the effects of three thinning intensities—no thinning control (NT), moderate thinning (annual removal of 15% of mature bamboo, MT), and heavy thinning (annual removal of 33% of mature bamboo, IT)—on the soil organic C (SOC), total N (TN), and total P (TP) stocks and their stoichiometry characteristics of a P. edulis forest located in the subtropical zone. The results showed that SOC, TN, and TP stocks decreased with increasing soil depth after three years of thinning. The SOC, TN, and TP stocks and the ecological stoichiometry ratios were varied with the change of thinning intensity and SOC stocks declining with the increased thinning intensity, but TN and TP stocks for the MT treatment were enhanced. The order of TN and TP stocks was MT > NT > IT. In comparison to CK, TN and TP stocks for MT increased significantly by 18.8 and 37.3%, while SOC, TN, and TP stocks for IT decreased by 31.0%, 7.2%, and 21.4%, respectively. The C:N and C:P ratios of MT decreased by 32.8% and 39.0%, and those of IT decreased by 26.5% and 15.6%, respectively. In summary, we conclude that the MT is an effective management strategy to promote soil nutrient cycling and provides a reference for formulating management strategies in subtropical Moso bamboo forests.

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“…Pubescens ) is a prominent forest type in the subtropical forest ecological system, is pivotal for carbon sequestration, especially significant in countering global warming [ 16 ]. Moso bamboo, chiefly found in Southern China, holds ecological, economic, and national forestry importance [ 17 , 18 , 19 ]. Apart from environmental benefits, its versatility spans from furniture production to being a food source [ 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Responses of Soil Carbon and Microbial Residues to Degradation in Moso Bamboo Forest

Liu,

Cheng,

et al. 2024

Plants

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Moso bamboo (Phyllostachys heterocycla cv. Pubescens) is known for its high capacity to sequester atmospheric carbon (C), which has a unique role to play in the fight against global warming. However, due to rising labor costs and falling bamboo prices, many Moso bamboo forests are shifting to an extensive management model without fertilization, resulting in gradual degradation of Moso bamboo forests. However, many Moso bamboo forests are being degraded due to rising labor costs and declining bamboo timber prices. To delineate the effect of degradation on soil microbial carbon sequestration, we instituted a rigorous analysis of Moso bamboo forests subjected to different degradation durations, namely: continuous management (CK), 5 years of degradation (D-5), and 10 years of degradation (D-10). Our inquiry encompassed soil strata at 0–20 cm and 20–40 cm, scrutinizing alterations in soil organic carbon (SOC), water-soluble carbon (WSOC), microbial carbon (MBC) and microbial residues. We discerned a positive correlation between degradation and augmented levels of SOC, WSOC, and MBC across both strata. Furthermore, degradation escalated concentrations of specific soil amino sugars and microbial residues. Intriguingly, extended degradation diminished the proportional contribution of microbial residuals to SOC, implying a possible decline in microbial activity longitudinally. These findings offer a detailed insight into microbial C processes within degraded bamboo ecosystems.

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Effects of abandonment management on soil C and N pools in Moso bamboo forests

Cited by 18 publications

References 50 publications

Long-Term Forest Conversion Affects Soil Stability and Humic Substances in Aggregate Fractions in Subtropical China

Long-Term Forest Conversion Affects Soil Stability and Humic Substances in Aggregate Fractions in Subtropical China

A Comparison of Soil C, N, and P Stoichiometry Characteristics under Different Thinning Intensities in a Subtropical Moso bamboo (Phyllostachys edulis) Forest of China

Responses of Soil Carbon and Microbial Residues to Degradation in Moso Bamboo Forest

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