Long-term intensive management effects on soil organic carbon pools and chemical composition in Moso bamboo (Phyllostachys pubescens) forests in subtropical China

Li, Yongfu; Zhang, Jiaojiao; Chang, Scott X.; Jiang, Peikun; Zhou, Guomo; Fu, Shenglei; Yan, En‐Rong; Wu, Jiaping; Lin, Lin

doi:10.1016/j.foreco.2013.04.021

Cited by 181 publications

(82 citation statements)

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“…To improve stand production and maximize economic benefits, intensive management, such as regular understory removal, tillage, and fertilization, are becoming popular (Liu et al 2011). These practices have been reported to reduce soil microbial diversity (Xu et al 2008), increase soil carbon mineralization (Zhou et al 2006), and change the soil chemical composition (Li et al 2013). However, there is a lack of information on the effects of understory removal on root production and turnover.…”

Section: +3772mentioning

confidence: 99%

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Effects of understory removal on root production, turnover and total belowground carbon allocation in Moso bamboo forests

Tang¹,

Fan²,

Qi³

et al. 2016

iForest

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Although the role of roots has been highlighted in carbon and nutrient cycles in forest ecosystems, root production, turnover and total belowground carbon allocation (TBCA) under different management regimes in Moso bamboo forests have not been determined to date. In this study, sequential soil cores were collected at two soil depths (0-20 cm and 20-40 cm) to assess the effects of understory removal on root production, turnover, and TBCA in Moso bamboo forests in subtropical China. A total of 1080 sequential soil cores were collected from April 2011 to March 2012. Understory removal significantly reduced fine root biomass and production for both soil layers (p < 0.05). Total fine root biomass was 781.9, 419.2, and 638.7 g m -2 for an unmanaged stand (stand I), pesticide-treated stand (stand II), and hand-weeded stand (stand III), and fine root production was 467.5, 235.1, and 321.6 g m -2 a -1 , respectively. Understory removal did not significantly affect fine root turnover (0.5-0.6 a -1 ). Fine root turnover showed a strong relationship with fine root production, but not with fine root biomass, indicating that fine root production was the main driver of fine root turnover. TBCA calculated from the component cumulative approach was in order of stand I (481.9 g C m -2 a -1 ) > stand II (457.7 g C m -2 a -1 ) > stand III (404.9 g C m -2 a -1 ), though the differences were not statistically significant (p > 0.05). However, TBCA calculated from the mass balance approach showed a reverse trend compared to the component cumulative approach. The TBCA of stand III was significantly higher than that of stand I and stand II (p < 0.05), demonstrating that the belowground process is complex and standardizing the method of estimation of TBCA is extremely important in global carbon cycle modeling.

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Section: +3772mentioning

confidence: 99%

“…Although many management practices are commonly conducted to improve the timber output in Moso bamboo forests (Li et al 2013), there is a lack of knowledge about the effects of these practices on TBCA. This study is the first attempt to estimate TBCA in the Moso bamboo forest relating to understory removal.…”

Section: Total Belowground Carbon Allocationmentioning

confidence: 99%

Effects of understory removal on root production, turnover and total belowground carbon allocation in Moso bamboo forests

Tang¹,

Fan²,

Qi³

et al. 2016

iForest

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“…N fertilizer is of great importance in crop production. Mineral N fertilizer application may also enhance the CO 2 efflux [Sainju et al 2008] and effected SOC pools [Li et al 2013]. Soil nitrogen concentration and its availability are generally associated with the SOC, because N increases production and therefore SOC, and SOC can serve as an N reservoir [Kaur et al 2008].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Different Doses of N Fertilization on the Parameters of Soil Organic Matter and Soil Sorption Complex

Šimanský¹,

Kováčik²,

Jończak³

2017

J. Ecol. Eng.

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Mineral N fertilizer application may have an effect on soil organic matter and other soil parameters. Therefore, we studied the effects of different doses of N fertilization on soil organic matter and chemical properties of Haplic Luvisol in the locality of Dolná Malanta (Slovakia) during 2014-2016. Soil samples were collected from the plots exposed to the following treatments: 1. The results showed that in N80 the soil organic carbon (SOC) content increased by 32% in comparison to N0. The addition of 80 kg ha -1 of N significantly decreased the humic substances (HS) content in the soil by 16% compared to N0. The higher doses of N fertilization 80 rather than 40 kg ha -1 as well as 240 rather than 160 kg ha -1 significantly decreased humus stability. The addition of N fertilization decreased the average values of soil pH. Values of hydrolytic acidity (Ha) increased by 41% and 46% in N40 and N80, respectively than N0, but on the other hand, this one decreased by 36% and 27% in N160 and N240, respectively in comparison to N0. Positive statistically significant correlations were determined between soil pH and SOC in N40 and N80 treatments. The increase of soil pH was connected with higher humus quality in N160 and N240. Negative correlations between humic acids (HA) and sum of basic cations (SBC) and cation exchange capacity (CEC) were observed in N80 < N160 < N240 treatments. Higher values of fulvic acids corresponded with lesser CEC in N80 and N160 treatments. In N160, with increased humus quality, CEC significantly decreased. The same effect was observed in N240. In addition, in N240, we also observed that with increased HA:FA ratio SBC and base saturation significantly decreased.

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“…Consequently, intensive management with fertilization, reclamation, and regular understory removal is becoming increasingly popular in Southern China, especially in the main bamboo producing provinces, such as Zhejiang and Fujian Provinces [18][19][20]. These activities have significantly changed the nutrient levels by affecting the microbial processes, soil structures, and chemical compositions [21,22]. Although many studies focus on the spatial patterns of soil N, P, and K stocks in different ecosystems [23,24], site specific maps of soil N, P, and K stocks for scientific management of Moso bamboo forests are still lacking in our study area.…”

Section: Introductionmentioning

confidence: 99%

Spatial Distribution of Soil Nitrogen, Phosphorus and Potassium Stocks in Moso Bamboo Forests in Subtropical China

Tang

Xia

Guan

et al. 2016

Forests

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Moso bamboo is famous for fast growth and biomass accumulation, as well as high annual output for timber and bamboo shoots. These high outputs require high nutrient inputs to maintain and improve stand productivity. Soil nitrogen (N), phosphorus (P), and potassium (K) are important macronutrients for plant growth and productivity. Due to high variability of soils, analysing spatial patterns of soil N, P, and K stocks is necessary for scientific nutrient management of Moso bamboo forests. In this study, soils were sampled from 138 locations across Yong'an City and ordinary kriging was applied for spatial interpolation of soil N, P, and K stocks within 0-60 cm. The nugget-to-sill ratio suggested a strong spatial dependence for soil N stock and a moderate spatial dependence for soil P and K stocks, indicating that soil N stock was mainly controlled by intrinsic factors while soil P and K stocks were controlled by both intrinsic and extrinsic factors. Different spatial patterns were observed for soil N, P, and K stocks across the study area, indicating that fertilizations with different ratios of N:P:K should be applied for different sites to maintain and improve stand productivity. The total soil N, P, and K stocks within 0-60 cm were 0.624, 0.020, and 0.583 Tg, respectively, indicating soils were important pools for N, P, and K.

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Long-term intensive management effects on soil organic carbon pools and chemical composition in Moso bamboo (Phyllostachys pubescens) forests in subtropical China

Cited by 181 publications

References 50 publications

Effects of understory removal on root production, turnover and total belowground carbon allocation in Moso bamboo forests

Effects of understory removal on root production, turnover and total belowground carbon allocation in Moso bamboo forests

The Effect of Different Doses of N Fertilization on the Parameters of Soil Organic Matter and Soil Sorption Complex

Spatial Distribution of Soil Nitrogen, Phosphorus and Potassium Stocks in Moso Bamboo Forests in Subtropical China

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