Labile soil organic matter pools in a calciorthent after 18 years of afforestation by different plantations

Laik, Ranjan; Kumar, K. S. Anil; Das, Debanjan; Chaturvedi, O. P.

doi:10.1016/j.apsoil.2009.02.004

Cited by 114 publications

(59 citation statements)

References 31 publications

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“…Ruiz-Peinado et al [44] reported that as the rotation time between thinning operations reached or exceeded eight years, the SOC stocks recovered. Litterfall and fine roots are major contributors to SOC [46]. In this study, total SOC concentrations were not affected by thinning treatments, which may be due to the similar litter inputs (biomass of litterfall and fine roots showed no difference among the treatments) and soil environmental conditions (especially soil temperature and soil water condition) in the moderate and heavy thinning plots, compared to the control plots (Tables 1, S1 and S2).…”

Section: Effect Of Thinning On Soc Fractionsmentioning

confidence: 61%

Effects of Thinning on Soil Organic Carbon Fractions and Soil Properties in Cunninghamia lanceolata Stands in Eastern China

Cheng

Wang

2017

Forests

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Soil organic carbon (SOC) fractions, along with soil properties, are greatly affected by forest management. In this study, three thinning treatments: control (conventional management mode), moderate thinning intensity and heavy thinning intensity, were applied in Chinese fir (Cunninghamia lanceolata) plantations in eastern China. The dissolved organic carbon (DOC), soil light fraction organic carbon (LFOC) and heavy fraction organic carbon (HFOC), total SOC, DOC/SOC and LFOC/HFOC were not affected by thinning treatments. In the heavy thinning treatment, soil bulk density decreased, and soil water holding capacity and porosity increased in the topsoil layers (0-10 cm and 10-20 cm). Total nitrogen, hydrolysable nitrogen, and zinc concentrations increased in the topsoil layers (0-20 cm) in the heavy thinning treatment compared to the control treatment, while the available potassium concentration reduced. The moderate thinning treatment had little effect on the soil physical and chemical properties. Moreover, the variation of SOC fractions was strongly correlated to soil physical and chemical properties. These results suggest that thinning has little effect on the total SOC and its fractions in one rotation of Chinese fir tree in eastern China. In contrast, however, results also suggest that thinning has a positive effect on soil quality, to a certain extent.

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Section: Effect Of Thinning On Soc Fractionsmentioning

confidence: 61%

Effects of Thinning on Soil Organic Carbon Fractions and Soil Properties in Cunninghamia lanceolata Stands in Eastern China

Cheng

Wang

2017

Forests

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“…Nesse sentido, a fração leve, considerada compartimento transitório entre a matéria orgânica fresca e a humificada, é considerada de alta labilidade e desempenha importante papel na estrutura e função do solo, especialmente como fonte de energia para organismos heterotróficos e reservatório de C prontamente disponível e de nutrientes para as plantas (Liang et al, 2003;Leite et al, 2007;Laik et al, 2009). Essa fração representa maior percentagem do COT em solos sob vegetação nativa do que sob cultivo, sendo responsiva à umidade do solo, à quantidade de resíduos adicionados e ao grau de perturbação do solo (Haynes et al, 2005).…”

Section: Introductionunclassified

Compartimentos de carbono em latossolo vermelho sob cultivo de eucalipto e fitofisionomias de cerrado

Neto

Leite

Maciel

et al. 2011

Rev. Bras. Ciênc. Solo

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RESUMOOs objetivos deste trabalho foram avaliar o impacto do cultivo do eucalipto, em diferentes idades, e de fitofisionomias de Cerrado sobre os estoques de C orgânico total e de seus compartimentos e verificar qual dessas frações constituise em indicador mais sensível às mudanças de uso do solo. O estudo foi realizado em Brasília, DF, em Latossolo Vermelho distroférrico sob plantio de eucalipto com três (PEUC-3), seis (PEUC-6) e sete (PEUC-7) anos de idade e sob Cerrado senso stricto, Cerrado denso e campo sujo. Nessas áreas, amostras de solo foram coletadas nas camadas de 0-10 e 10-20 cm, para determinação dos estoques de C orgânico total (COT), carbono da fração leve livre (FLL) e carbono das frações húmicas (ácidos fúlvicos -FAF, ácidos húmicos -FAH e huminas -FH). Em ambas as camadas de solo, observaram-se maiores estoques de COT e de C nos compartimentos, nas áreas sob Cerrado denso e Cerrado, comparativamente àquelas cultivadas com eucalipto; houve recuperação dos estoques de C em todos os compartimentos, com o aumento do tempo de cultivo do eucalipto. O C-FLL, seguido do C-FAF e C-FAH, foram considerados os compartimentos mais sensíveis às mudanças no uso do solo, uma vez que as reduções em estoque foram de maior amplitude do que as observadas no COT e C-FH. A análise multivariada, que considera todos os compartimentos conjuntamente, evidenciou maior similaridade entre o Cerrado denso e Cerrado, bem como entre o campo sujo, PEUC-3, PEUC-6 e PEUC7, nas camadas de 0-10 e 10-20 cm.Termos de indexação: matéria orgânica do solo, substâncias húmicas, florestas, uso do solo.

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“…Fractions of N labile an d C la bile are important source of energy for microorganisms which plays important role in the mineralization process. Light fractions are transit pool between fresh organic and humidified organic, contributing to reserve of C organic and energy sources for microorganisms (Haynes, 2000;Burton et al, 2007;Laik et al, 2009). A labile organic matter fraction has a significant effect on soil organic matters reserve.…”

Section: Introductionmentioning

confidence: 99%

Effect of organic matter and soil fertility on nitrogen mineralization and its uptake by cassava (Manihot esculenta Crantz) in a typic Hapludults

Wijanarko¹

2015

JEBAS

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KEYWORDSOrganic matter quality Soil fertility N mineralization N uptake T ypic Hapludults ABSTRAC TFertility of soil and crop biomass production are directly affected by organic matters present in soil. T he availability of organic matter and its quality plays a key role in the soil, plants and environment sustainability. Present study was aimed to investigate the influence of organic matter and soil fertility on nitrogen mineralization and its uptake by cassava. T o estimate the parameters of N mineralization potential (N0), rate of mineralization (k), and activation energy (Ea) incubation experiments were conducted in the laboratory, using a first order equation. While the relationship between the parameters of N mineralization and nutrient uptake were carried o ut in green house pot experiment s. Value of N0, k and Ea were reported 400 -1156 mg/kg, 0.0056 -0.098 per week and 10166 -31478 J mol -1 respectively. N mineralization was positively correlat ed with water soluble N, N-Particulate Organic Matter, N microbial biomass, C-Particulate Organic Matter, C microbial biomass, N-total plant dry weight, N concentration and N uptake of cassava plants, however it was negatively correlated with C:N ratio. A higher N mineralization rate was found in soils with low C:N ratio of organic matter and higher fertility, as indicated by the value of N0, k and N0.k, which were higher than that of high C:N ratio of organic matter and low fertility of soil.

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Labile soil organic matter pools in a calciorthent after 18 years of afforestation by different plantations

Cited by 114 publications

References 31 publications

Effects of Thinning on Soil Organic Carbon Fractions and Soil Properties in Cunninghamia lanceolata Stands in Eastern China

Effects of Thinning on Soil Organic Carbon Fractions and Soil Properties in Cunninghamia lanceolata Stands in Eastern China

Compartimentos de carbono em latossolo vermelho sob cultivo de eucalipto e fitofisionomias de cerrado

Effect of organic matter and soil fertility on nitrogen mineralization and its uptake by cassava (Manihot esculenta Crantz) in a typic Hapludults

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