Microbial CO2 production from surface and subsurface soil as affected by temperature, moisture, and nitrogen fertilisation
Xiaobin Jin A B , Shenmin Wang A and Yinkang Zhou AA Department of Land Resources and Tourism Sciences, Nanjing University, No. 22 Han kou Road, Nanjing 210093, China.
B Corresponding author. Email: xbjin123@163.com
Australian Journal of Soil Research 46(3) 273-280 https://doi.org/10.1071/SR07144
Submitted: 21 September 2007 Accepted: 3 March 2008 Published: 1 May 2008
Abstract
The Sanjiang Plain of north-east China is presently the second largest freshwater marsh in China. The drainage and use of marshes for agricultural fields occurred in the past 50 years, resulting in the increase in cultivated land from about 2.9 × 108 m2 in 1893 to 4.57 × 1010 m2 in 1994. Under human disturbance in the past half century, the environment in Sanjiang Plain has had significant change. We hypothesised that environmental factors such as soil moisture, soil temperature, and soil N levels affect the rates of soil organic C mineralisation and the nature of the controls on microbial CO2 production to change with depth through the soil profile in the freshwater marsh in the Sanjiang Plain. In a series of experiments, we measured the influence of soil temperature, soil water content, and nitrogen additions on soil microbial CO2 production rates.
The results showed that Q10 values (the factor by which the CO2 production rate increases when the temperature is increased by 10°C) significantly increased with soil depth through the soil profile (P < 0.05). The average Q10 values for the surface soils were 2.7 (0–0.2 m), significantly lower than that (average Q10 values 3.3) for the subsurface samples (0.2–0.6 m) (P < 0.05), indicating that C mineralisation rates were more sensitive to temperature in subsurface soil horizons than in surface horizons. The maximum respiration rate was measured at 60% water hold capacity for each sample. The quadratic equation function adequately describes the relationship between soil respiration and soil water content, and the R2 values were > 0.80. The sensitivity of microbial CO2 production rate response to soil water content for surface soils (0–0.2 m) was slightly lower than for subsurface soils (0.2–0.6 m). The responses of actual soil respiration rates to nitrogen fertilisation were different for surface and subsurface soils. In the surface soils (0–0.2 m), the addition of N caused a slight decreased in respiration rates compared with the control, whereas, in the subsurface soils (0.2–0.6 m), the addition of N tended to increase microbial CO2 production rates, and the addition of 10 µg N/g soil treatment caused twice the increase in C mineralisation rates of the control. Our results suggested that the responses of microbial CO2 production to changes in soil moisture, soil temperature, and soil N levels varied with soil depth through the profile, and subsurface soil organic C was more sensitive to temperature increase and nitrogen inputs in the freshwater marsh of the Sanjiang Plain.
Additional keywords: nitrogen, Q10 value, soil organic C, soil profile, soil water content, temperature.
Acknowledgments
We would like to thank the reviewers for their time and suggestions.
Aber JD,
Magill A,
Boone R,
Melillo JM,
Steudler P, Bowden RD
(1993) Plant and soil responses to three years of chronic nitrogen additions at the Harvard Forest, Petersham, MA. Ecological Applications 3, 156–166.
| Crossref | GoogleScholarGoogle Scholar |
Ajwa HA,
Rice CW, Sotomayor D
(1998) Carbon and nitrogen mineralization in tallgrass prairie and agricultural soil profiles. Soil Science Society of America Journal 62, 942–951.
Batjes NH
(1996) Total carbon and nitrogen in the soils of the world. European Journal of Soil Science 47, 151–163.
| Crossref | GoogleScholarGoogle Scholar |
Bowden RD,
Davidson E,
Savage K,
Arabia C, Steudler P
(2004) Chronic nitrogen additions reduce total soil respiration and microbial respiration in temperate forest soils at the Harvard Forest. Forest Ecology and Management 196, 43–56.
| Crossref | GoogleScholarGoogle Scholar |
Bowden RD,
Rullo G,
Stevens GR, Steudler PA
(2000) Soil fluxes of carbon dioxide, nitrous oxide, and methane at a productive temperate deciduous forest. Journal of Environmental Quality 29, 268–276.
Burton AJ,
Pregitzer KS,
Reuss RW,
Hendrick RL, Allen MF
(2002) Root respiration in North American forests: effects of nitrogen concentration and temperature across biomes. Oecologia 131, 559–568.
| Crossref | GoogleScholarGoogle Scholar |
Cao M, Woodward FI
(1998) Dynamic responses of terrestrial ecosystem carbon cycling to global climate change. Nature 393, 249–252.
| Crossref | GoogleScholarGoogle Scholar |
Desjardins T,
Andreux F,
Volkoff B, Cerri CC
(1994) Organic carbon and 13C contents in soils and soil size-fractions, and their changes due to deforestation and pasture installation in eastern Amazonia. Geoderma 61, 103–118.
| Crossref | GoogleScholarGoogle Scholar |
Fierer N,
Schimel JP, Holden PA
(2003) Variations in microbial community composition through two soil depth profiles. Soil Biology & Biochemistry 35, 167–176.
| Crossref | GoogleScholarGoogle Scholar |
Foereid B,
de Neergaard A, Høgh-Jensen H
(2004) Turnover of organic matter in a Miscanthus field: effect of time in Miscanthus cultivation and inorganic nitrogen supply. Soil Biology & Biochemistry 36, 1075–1085.
| Crossref | GoogleScholarGoogle Scholar |
Fog K
(1988) The effect of added nitrogen on the rate of decomposition of organic matter. Biological Reviews of the Cambridge Philosophical Society 63, 433–462.
| Crossref | GoogleScholarGoogle Scholar |
French DD
(1988) Some effects of changing soil chemistry on decomposition of plant litters and cellulose on a Scottish (UK) moor. Oecologia 75, 608–618.
| Crossref | GoogleScholarGoogle Scholar |
Gaudinski JB,
Trumbore SE,
Davidson EA, Zheng S
(2000) Soil carbon cycling in a temperate forest: radiocarbon-based estimates of residence times, sequestration rates and partitioning of fluxes. Biogeochemistry (Dordrecht) 51, 33–69.
Hashimoto S
(2005) Temperature sensitivity of soil CO2 production in a tropical hill evergreen forest in northern Thailand. Journal of Forest Research 10, 497–503.
| Crossref | GoogleScholarGoogle Scholar |
Hendry MJ,
Mendoza CA,
Kirkland RA, Lawrence JR
(1999) Quantification of transient CO2 production in a sandy unsaturated zone. Water Resources Research 35, 2189–2198.
| Crossref | GoogleScholarGoogle Scholar |
Howard DM, Howard PJA
(1993) Relationships between CO2 evolution, moisture content and temperature for a range of soil types. Soil Biology & Biochemistry 25, 1537–1546.
| Crossref | GoogleScholarGoogle Scholar |
Kätterer T,
Reichstein M,
Andren O, Lomander A
(1998) Temperature dependence of organic matter decomposition: a critical review using literature data analyzed with different models. Biology and Fertility of Soils 27, 258–262.
| Crossref | GoogleScholarGoogle Scholar |
Kirschbaum MUF
(1995) The temperature dependence of soil organic matter decomposition, and the effect of global warming on soil organic C storage. Soil Biology & Biochemistry 27, 753–760.
| Crossref | GoogleScholarGoogle Scholar |
Lal R
(2004) Soil carbon sequestration to mitigate climate change. Geoderma 123, 1–22.
| Crossref | GoogleScholarGoogle Scholar |
Linn DM, Doran JW
(1984) Effect of water-filled pore space on carbon dioxide and nitrous oxide production in tilled and nontilled soils. Soil Science Society of America Journal 48, 1267–1272.
Liu XT, Ma XH
(2000) Effect of large-scale reclamation on natural environment and regional environmental protection in the Sanjiang Plain. Scientia Geographica Sinica 20, 14–19 [in Chinese].
Lomander A,
Kätterer T, Andren O
(1998) Carbon dioxide evolution from top- and subsoil as affected by moisture and constant and fluctuating temperature. Soil Biology & Biochemistry 30, 2017–2022.
| Crossref | GoogleScholarGoogle Scholar |
Luizão RCC,
Bonde TA, Rosswall TA
(1992) Seasonal variation of soil microbial biomass – the effects of clearfelling a tropical rainforest and establishment of pasture in the central Amazon. Soil Biology & Biochemistry 24, 805–813.
| Crossref | GoogleScholarGoogle Scholar |
Pan GX,
Li LQ,
Zhang Q,
Wang XK,
Sun XB,
Xu XB, Jiang DA
(2005) Organic carbon stock in topsoil of Jiangsu Province, China, and the resent trend of carbon sequestration. Journal of Environmental Sciences 17, 1–7.
Raich JW, Potter CS
(1995) Global patterns of carbon dioxide emissions from soils. Global Biogeochemical Cycles 9, 23–36.
| Crossref | GoogleScholarGoogle Scholar |
Raich JW, Schlesinger WH
(1992) The global carbon dioxide flux in soil respiration and its relationship to vegetation and climate. Tellus 44B, 81–99.
Richter DD, Markewitz D
(1995) How deep is soil? Bioscience 45, 600–609.
| Crossref | GoogleScholarGoogle Scholar |
Rochette P,
Desjardins RL, Pattey E
(1991) Spatial and temporal variability of soil respiration in agricultural fields. Canadian Journal of Soil Science 71, 189–196.
Schwendenmann L,
Veldkamp E,
Brenes T,
O’Brien JJ, Mackensen J
(2003) Spatial and temporal variation in soil CO2 efflux in an old-growth neotropical forest, La Selva, Costa Rica. Biogeochemistry 64, 111–128.
| Crossref | GoogleScholarGoogle Scholar |
Sombroek WG,
Nachtergaele FO, Hebel A
(1993) Amounts, dynamics and sequestering of carbon in tropical and subtropical soils. Ambio 22, 417–426.
Stark JM, Firestone MK
(1996) Kinetic characteristics of ammonium-oxidizer communities in a California oak woodland-annualgrassland. Soil Biology & Biochemistry 28, 1307–1317.
| Crossref | GoogleScholarGoogle Scholar |
Swindoll CM,
Aelion CM, Pfaender FK
(1988) Influence of inorganic and organic nutrients on aerobic biodegradation and on the adaptation response of subsurface microbial communities. Applied and Environmental Microbiology 54, 212–217.
| PubMed |
Thornton-Manning JR,
Jones DD, Federle TW
(1987) Effects of experimental manipulation of environmental factors on phenol mineralization in soil. Environmental Toxicology and Chemistry 6, 615–622.
| Crossref | GoogleScholarGoogle Scholar |
Trumbore SE
(2000) Age of soil organic matter and soil respiration: radiocarbon constraints on belowground C dynamics. Ecological Applications 10, 399–411.
| Crossref | GoogleScholarGoogle Scholar |
Trumbore SE,
Davidson EA,
de Camargo PB,
Nepstad DC, Martinelli LA
(1995) Belowground cycling of carbon in forests and pastures of Eastern Amazonia. Global Biogeochemical Cycles 9, 515–528.
| Crossref | GoogleScholarGoogle Scholar |
Vance ED, Chapin FS
(2001) Substrate limitations to microbial activity in taiga forest floors. Soil Biology & Biochemistry 33, 173–188.
| Crossref | GoogleScholarGoogle Scholar |
Veldkamp E
(1994) Organic carbon turnover in three tropical soils under pasture after deforestation. Soil Science Society of America Journal 58, 175–180.
Veldkamp E,
Becker A,
Schwendenmann L,
Clark DA, Hubert SB
(2003) Substantial labile carbon stocks and microbial activity in deeply weathered soils below a tropical wet forest. Global Change Biology 9, 1171–1184.
| Crossref | GoogleScholarGoogle Scholar |
Winkler JP,
Cherry RS, Schlesinger WH
(1996) The Q10 relationship of microbial respiration in a temperate forest soil. Soil Biology & Biochemistry 28, 1067–1072.
| Crossref | GoogleScholarGoogle Scholar |
Yang JC,
Huang JH,
Pan QM,
Tang JW, Han XG
(2004) Long-term impacts of land-use change on dynamics of tropical soil carbon and nitrogen pools. Journal of Environmental Sciences 16, 256–261.
Zhang JB,
Song CC, Yaang WY
(2006) Land use effects on a distribution of labile organic carbon through soil profiles. Soil Science Society of America Journal 70, 660–667.
| Crossref | GoogleScholarGoogle Scholar |
