Spatial structures of N2O, CO2, and CH4 fluxes from Acacia mangium plantation soils during a relatively dry season in Indonesia

Konda, Ryota; Ohta, Seiichi; Ishizuka, Shigehiro; Arai, Seiko; Ansori, Saifuddin; Tanaka, Nagaharu; Hardjono, Arisman

doi:10.1016/j.soilbio.2008.08.022

Cited by 62 publications

(43 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As a central tool in geostatistics, the semivariance statistic is extensively applied to evaluate the spatial heterogeneity of soil respiration in forest ecosystems [25] [26] [48] or farmland ecosystems [7] [44], but there are few reports using geostatistical analysis to clarify the spatial structure of soil respiration in the arid desert ecosystems. Wang, et al [45] conducted an experiment in an area adjacent to the our TE site which contained 42 sampling points with 2 m grids and found a moderate spatial autocorrelation of SR with the nugget to sill value of 0.49 and a range of 4.78 m, compared with our more homogeneous distribution as deduced from larger nugget/sill value of 0.62 and range of 16.35 m. It is reported that the range of spatial variation models of SR changed temporally [25] [26] [51] and could also be affected by the plot size [52], which might account for the discrepancy.…”

Section: Spatial Variations Of Soil Respiration In Three Ecosystemscontrasting

confidence: 44%

Spatial Variations of Soil Respiration in Arid Ecosystems

Liu¹,

Sonobe²,

Wang³

2016

OJE

View full text Add to dashboard Cite

Soil respiration releases a major carbon flux back to atmosphere and thus plays an important role in global carbon cycling. Soil respiration is well known for its significant spatial variation in terrestrial ecosystems, especially in fragile ecosystems of arid land, where vegetation is distributed sparsely and the climate changes dramatically. In this study, soil respiration in three typical arid ecosystems: desert ecosystem (DE), desert-farmland transition ecosystem (TE) and farmland ecosystem (FE) in an arid area of northwestern China were studied for their spatial variations in 2012 and 2013. Along with soil respiration (SR), soil surface temperature (ST), soil moisture (SM) and soil electrical conductivity (ECb) were also recorded to investigate the spatial variations and the correlations among them. The results revealed that averaged soil respiration rate was much lower in DE than those in TE and FE. No single factor could adequately explain the variation of soil respiration, except a negative relationship between soil temperature and soil respiration in FE (P < 0.05). Geostatistical analysis showed that the spatial heterogeneity of soil respiration in DE was insignificant but notably in both TE and FE, especially in FE, which was mainly attributed to the different vegetation or soil moisture characteristics in the three ecosystems. The results obtained in this study will help to provide a better understanding on spatial variations of soil respiration and soil properties in arid ecosystems and also on macroscale carbon cycling evaluations.

show abstract

Section: Spatial Variations Of Soil Respiration In Three Ecosystemscontrasting

confidence: 44%

Spatial Variations of Soil Respiration in Arid Ecosystems

Liu¹,

Sonobe²,

Wang³

2016

OJE

View full text Add to dashboard Cite

show abstract

“…Volumetric soil moisture at 10-cm soil depth was measured with a moisture meter (Time-domain reflectometer, Campbell Scientific, Inc., North Logan, UT, USA). The water-filled pore space (WFPS) was calculated by the dates of soil moisture, bulk density (BD) and soil particle density (PD) [18]: Q 10 value of CH 4 flux was calculated [19]:…”

Section: Gas Sampling and Analysesmentioning

confidence: 99%

Effects of Landuse Change on CH4 Soil-Atmospheric Exchange in Alpine Meadow on the Tibetan Plateau

Guo¹,

Du²,

Han³

et al. 2015

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

“…had been planted on over 8,317,000 ha by 2000 and 96 % of the total global acacia plantation area is located in Asia (FAO 2001). Several studies have demonstrated that Acacia mangium plantations are non-negligible emission sources of N 2 O because of their high nitrogenfixing ability as leguminous trees , Konda et al 2008. Arai et al (2008) reported that the annual N 2 O emission from acacia plantation soils in Sumatra (2.56 kg-N ha…”

Section: Introductionmentioning

confidence: 99%

The effects of tannins derived from <i>Acacia mangium</i> bark on N<sub>2</sub>O emissions from water saturated acacia plantation soil

Matsubara

Ohta

2015

Tropics

Self Cite

View full text Add to dashboard Cite

To evaluate the potential of tannins derived from Acacia mangium bark to mitigate soil N 2 O emissions, a laboratory incubation study was conducted. We prepared a crude tannin extract by water extraction from A. mangium bark, and fractionated the crude extract into high-and low-molecular-weight tannins (HMTs and LMTs, respectively). Soils were incubated with and without the addition of A. mangium bark tannins and commercial tannic acid after KNO 3 was added and the water-filled pore space was adjusted to 100 %. Acacia mangium bark tannins significantly decreased N 2 O emissions compared with the control. However, they did not significantly affect CO 2 emissions or inorganic N concentrations except for soils with LMTs, where cumulative CO 2 emissions were significantly decreased, and for the fact that NH 4 + contents in tannin-treated soils were significantly lower than in the control soil at 7 days. These results suggest that the antimicrobial activities of purified tannins of A. mangium bark reduced N 2 O emissions by inhibiting denitrification regardless of the degree of polymerization. The crude tannin extract, which probably contained other non-tannic C sources, also reduced N 2 O emissions, suggesting that the toxic effects of HMT and LMT in it would overcome the effects of other C compounds on soil N 2 O emissions. Tannic acid, which is different in structure from condensed tannins, suppressed the N 2 O emission but it was not significant and less effective than HMT and LMT. Our results suggest that the application of A. mangium bark tannins has the potential to mitigate N 2 O emissions from A. mangium plantation soils.

show abstract

Spatial structures of N2O, CO2, and CH4 fluxes from Acacia mangium plantation soils during a relatively dry season in Indonesia

Cited by 62 publications

References 51 publications

Spatial Variations of Soil Respiration in Arid Ecosystems

Spatial Variations of Soil Respiration in Arid Ecosystems

Effects of Landuse Change on CH4 Soil-Atmospheric Exchange in Alpine Meadow on the Tibetan Plateau

The effects of tannins derived from <i>Acacia mangium</i> bark on N<sub>2</sub>O emissions from water saturated acacia plantation soil

Contact Info

Product

Resources

About