Mixed-species plantation with Pinus massoniana and Castanopsis hystrix accelerates C loss in recalcitrant coniferous litter but slows C loss in labile broadleaf litter in southern China

Wang, Hui; Liu, Shirong; Wang, Jingxin; You, Yeming; Yang, Yuran; Shi, Zhou; Huang, Xiao Li; Zheng, Lu; Li, Zhaoying; Ming, Angang; Lu, Ling; Cai, Daoxiong

doi:10.1016/j.foreco.2018.04.024

Cited by 40 publications

(17 citation statements)

References 44 publications

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“…These results confirmed previous findings conducted in our experiment site measured when the plantations were 26-year-old and 28-year-old, respectively [7,16]. A bulk of studies revealed that mixed-species management could affect tree growth, stand structure and environment [14,52,53]. Mixed forests can develop stratified canopies due to niche differences among different species.…”

Section: Coniferous-broadleaf Mixture Significantly Increase Stand Bisupporting

confidence: 91%

“…The mean annual precipitation is about 1400 mm; most rainfall occurs from April to September. The mean annual temperature is 21 • C. The loamy-textured soil in this area was formed from granitic parent geological material, and is classified as red soil in the Chinese system of soil classification, which is equivalent to an oxisol in the USDA Soil Taxonomy [8,14].…”

Section: Study Sites and Experimental Designmentioning

confidence: 99%

“…are two afforestation tree species that are most widely planted in subtropical China, usually making up monoculture plantations. Such monospecific plantations have caused serious ecological concerns, including declines in stand productivity, litter quality, and soil fertility resulting from long-term single litter input, increased pest and disease attack, self-allelopathy, and site degradation [14][15][16]. To mitigate these disadvantages, mixed P. massoniana and C. hystrix plantations were established about 40 years ago at the Experimental Center of Tropical Forestry, Chinese Academy of Forestry, in subtropical China.…”

Section: Introductionmentioning

confidence: 99%

“…At present, the area of these plantations is more than 5000 ha [1]. Previous studies have suggested that mixed plantations of these two genera could lead to more plant species diversity, more productivity, faster litter decomposition rate, and higher carbon stocks compared to monospecific stands [7,14,16,17]. Interactions between aboveground plant communities and belowground microbial communities may underlie some of these positive effects, while little is known about these interactions in mixed stands of P. massoniana and C. hystrix.…”

Section: Introductionmentioning

confidence: 99%

“…In general, there are enormously important interactions between the composition of aboveground plant communities and belowground microbial communities in forest ecosystems [18]. Management strategies such as tree species transformation, adding N 2 -fixing species or broad-leaf species in coniferous monospecific stands may change the amount and chemical composition of litterfall, root mass, and exudates [14,19], then affect soil organic matter quantity and dynamics [8], along with microsite conditions [20]. As a result, these changes may control the composition and functions of the soil microorganisms which acquire carbon from primarily producer-derived organic resources [21].…”

Section: Introductionmentioning

confidence: 99%

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Coniferous-Broadleaf Mixture Increases Soil Microbial Biomass and Functions Accompanied by Improved Stand Biomass and Litter Production in Subtropical China

Zhou

Yan

et al. 2019

Forests

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Although the advantages of multi-species plantations over single-species plantations have been widely recognized, the mechanisms driving these advantages remain unclear. In this study, we compared stand biomass, litter production and quality, soil properties, soil microbial community, and functions in a Pinus massoniana Lamb. and Castanopsis hystrix Miq. mixed plantation and their corresponding mono-specific plantations after 34 years afforestation in subtropical China. The results have shown that a coniferous-broadleaf mixture created significantly positive effects on stand biomass, litter production, soil microbial biomass, and activities. Firstly, the tree, shrub and herb biomass, and litter production were significantly higher in the coniferous-broadleaf mixed plantation. Secondly, although the concentrations of soil organic carbon (SOC) and total nitrogen (TN) were lower in the mixed stand, the concentrations of soil microbial biomass carbon (MBC), and nitrogen (MBN), along with MBC-to-SOC and MBN-to-TN ratio, were significantly higher in mixed stands with markedly positive admixing effects. We also found higher carbon source utilization ability and β−1, 4−N−acetylglucosaminidase, urease and acid phosphatase activities in mixed stands compared with the mono-species stands. Our results highlight that establishment of coniferous-broadleaf mixed forests may be a good management practice as coniferous-broadleaf mixture could accumulate higher stand biomass and return more litter, resulting in increasing soil microbial biomass and related functions for the long term in subtropical China.

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Section: Coniferous-broadleaf Mixture Significantly Increase Stand Bisupporting

confidence: 91%

Section: Study Sites and Experimental Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Coniferous-Broadleaf Mixture Increases Soil Microbial Biomass and Functions Accompanied by Improved Stand Biomass and Litter Production in Subtropical China

Zhou

Yan

et al. 2019

Forests

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Mixed planting enhances soil multi‐nutrient cycling by homogenizing microbial communities across soil vertical scale

Pan

Sun

et al. 2022

Land Degrad Dev

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Soil multi‐nutrient cycling (SMC) driven by microbial communities determines the primary productivity of forests. While functional microbes and microbial community composition are thought to contribute to SMC, the importance of different microbial communities in SMC enhancement in forest ecosystems are largely unknown. Here, we aimed to decode the underlying mechanisms of bacterial and fungal communities in the surface (0–20 cm) and subsurface soils (20–40 cm) that drive SMC in two afforestation models: pure plantation (Chinese fir) and mixed plantation (different tree varieties). Mixed planting significantly enhanced the SMC along the soil vertical spatial scale, implying that mixed planting effectively alleviated soil degradation caused by pure planting. This was attributed to the homogenization effect of mixed planting on bacterial and fungal community assemblies across the soil vertical scales. Specifically, fungal communities mainly contributed to SMC in the surface soil in mixed plantations, and bacterial communities were the primary drivers of SMC in the subsurface soil. Furthermore, multiple regression and structural equation modeling confirmed that specific key fungal taxa preferentially mediate the transformation of available phosphorus and soil organic carbon, and contribute 77.0% of SMC variation in the surface soil, while bacterial taxa mainly drive the transformation of ammonium nitrogen and soil organic carbon, and account for 60.0% of SMC variation in the subsurface soil. This study highlights the different patterns of bacterial and fungal community assembly, and their function in SMC along the soil vertical spatial scale, and advances the understanding of the roles of soil microbial communities in degraded forest soil remediation.

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The quadratic relationship between tree species richness and topsoil organic carbon stock in a subtropical mixed-species planted forest

Wang

Song²,

Wang³

et al. 2022

Eur J Forest Res

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Mixed-species plantation with Pinus massoniana and Castanopsis hystrix accelerates C loss in recalcitrant coniferous litter but slows C loss in labile broadleaf litter in southern China

Cited by 40 publications

References 44 publications

Coniferous-Broadleaf Mixture Increases Soil Microbial Biomass and Functions Accompanied by Improved Stand Biomass and Litter Production in Subtropical China

Coniferous-Broadleaf Mixture Increases Soil Microbial Biomass and Functions Accompanied by Improved Stand Biomass and Litter Production in Subtropical China

Mixed planting enhances soil multi‐nutrient cycling by homogenizing microbial communities across soil vertical scale

The quadratic relationship between tree species richness and topsoil organic carbon stock in a subtropical mixed-species planted forest

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