Relationships of soil microbial biomass carbon and organic carbon with environmental parameters in mountainous soils of southwest China

Piao, He-Chun; Liu, G.S.; Wu, Yuping; Wang, Xu

doi:10.1007/s003740000328

Cited by 26 publications

(8 citation statements)

References 12 publications

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“…The microbial biomass C can be an index of the soil organic C concentration since it is affected by the available C in the soil (Piao et al 2001). In this study, a strong correlation was observed between the soil C concentration and microbial biomass C concentration ( Figure 6).…”

Section: Microbial Biomass C Concentrationsupporting

confidence: 52%

Differences in soil aggregate, microbial biomass carbon concentration, and soil carbon betweenPinus rigidaandLarix kaempferiplantations in Yangpyeong, central Korea

Park

Yoon

et al. 2012

Forest Science and Technology

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This study was conducted to examine the soil aggregate distributions and their relationship with microbial biomass carbon (C) concentration and soil C in Pinus rigida and Larix kaempferi plantations. Soil samples of 0-10 cm, 10-20 cm, and 20-30 cm depth were collected and the microbial biomass C concentration was measured. The soils were then classified into four aggregate size classes by wet-sieving procedure [large macroaggregate (42000 mm), small macroaggregate (250-2000 mm), microaggregate (53-250 mm), and silt-plus-clay (553 mm)] and the C content of each aggregate size class was analyzed. The L. kaempferi plantation contained more macroaggregate over 250 mm than the P. rigida plantation did. The mean weight diameter (MWD) of the soil aggregate up to 30 cm depth was 1.26 mm and 1.45 mm in the P. rigida and L. kaempferi plantations, respectively, and it decreased with soil depth. The microbial biomass C concentration up to 30 cm depth was 510 mg C g soil 71 for the P. rigida plantation and 764 mg C g soil 71 for the L. kaempferi plantation, and it was greatest in the surface soil in both plantations. The mean soil C concentration up to 30 cm depth was 2.00% for the P. rigida plantation and 2.88% for the L. kaempferi plantation. In both plantations, the soil C concentration was higher in the surface soil than in the deep soil. However, there was no significant difference of C concentration among the soil aggregate size classes. The soil C content up to 30 cm depth in the P. rigida and L. kaempferi plantations were 47.69 Mg ha 71 and 61.49 Mg ha 71 , respectively, and were also higher in the surface soil than in the deep soil. In both plantations, macroaggregate contained more C content than microaggregate did. The microbial biomass C and soil C concentrations were significantly higher (P 5 0.05) in the L. kaempferi plantation than in the P. rigida plantation due to the effect of species difference. The MWD and C content tended to be greater in the L. kaempferi plantation than in the P. rigida plantation, but the differences were not significant. In this study, the soil aggregate size, microbial biomass C and soil C concentrations were positively correlated with one another.

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Section: Microbial Biomass C Concentrationsupporting

confidence: 52%

Differences in soil aggregate, microbial biomass carbon concentration, and soil carbon betweenPinus rigidaandLarix kaempferiplantations in Yangpyeong, central Korea

Park

Yoon

et al. 2012

Forest Science and Technology

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“…In general MBC maintained better association with organic carbon among soils (r = 0.39 NS to 0.93*) (Witter and Kanal, 1998;Powlson and Jenkinson, 1981). Soil organic carbon contents were significantly correlated with soil pH but microbial biomass C and its seasonal changes were not correlated with pH (Piao et al, 2001). Among organic sources, FYM in combination with inorganic NPK addition resulted in higher MBC except at Anantapur.…”

Section: Discussionmentioning

confidence: 82%

Microbial properties of soils as affected by cropping and nutrient management practices in several long-term manurial experiments in the semi-arid tropics of India

Vineela

Wani

Srinivasarao

et al. 2008

Applied Soil Ecology

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“…In addition, as to the different patterns between SMBC and other indexes (SOC, large and small aggregates) in October, compared to other months, it was likely attributable to high seasonal variability [36][37][38]. A negative relationship between SOC and air temperature was found, while the SMBC exhibited an opposite pattern in autumn, from the results of 12 terrace fields in Southwest China [83]. This might have been the cause of the seasonal differences observed in our results.…”

Section: Discussionmentioning

confidence: 97%

Soil Aggregation and Organic Carbon Dynamics in Poplar Plantations

Fang

Chen

et al. 2018

Forests

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Soil resident water-stable macroaggregates (diameter (Ø) > 0.25 mm) play a critical role in organic carbon conservation and fertility. However, limited studies have investigated the direct effects of stand development on soil aggregation and its associated mechanisms. Here, we examined the dynamics of soil organic carbon, water-stable macroaggregates, litterfall production, fine-root (Ø < 1 mm) biomass, and soil microbial biomass carbon with stand development in poplar plantations (Populus deltoides L. ‘35’) in Eastern Coastal China, using an age sequence (i.e., five, nine, and 16 years since plantation establishment). We found that the quantity of water-stable macroaggregates and organic carbon content in topsoil (0–10 cm depth) increased significantly with stand age. With increasing stand age, annual aboveground litterfall production did not differ, while fine-root biomass sampled in June, August, and October increased. Further, microbial biomass carbon in the soil increased in June but decreased when sampled in October. Ridge regression analysis revealed that the weighted percentage of small (0.25 mm ≤ Ø < 2 mm) increased with soil microbial biomass carbon, while that of large aggregates (Ø ≥ 2 mm) increased with fine-root biomass as well as microbial biomass carbon. Our results reveal that soil microbial biomass carbon plays a critical role in the formation of both small and large aggregates, while fine roots enhance the formation of large aggregates.

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Relationships of soil microbial biomass carbon and organic carbon with environmental parameters in mountainous soils of southwest China

Cited by 26 publications

References 12 publications

Differences in soil aggregate, microbial biomass carbon concentration, and soil carbon betweenPinus rigidaandLarix kaempferiplantations in Yangpyeong, central Korea

Differences in soil aggregate, microbial biomass carbon concentration, and soil carbon betweenPinus rigidaandLarix kaempferiplantations in Yangpyeong, central Korea

Microbial properties of soils as affected by cropping and nutrient management practices in several long-term manurial experiments in the semi-arid tropics of India

Soil Aggregation and Organic Carbon Dynamics in Poplar Plantations

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