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Plastic mulching increased soil CO2 concentration and emissions from an oasis cotton field in Central Asia (English)

In: Soil use and management   ;  32 ,  2  ;  2016
  • ISSN:
    0266-0032
  • Article (Journal)  /  Print

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Although previous researchers suggest that carbon dioxide ( CO 2 ) emissions are influenced by plastic mulching, the effects of this method on soil CO 2 concentration and emissions remain uncertain. Soil CO 2 concentration and emissions from ridge and furrow soils under mulched and nonmulched treatments in 2014 and 2015 were measured. The soil CO 2 concentration was observed using modified diffusion equilibrium samplers, and the soil CO 2 emissions were measured using a closed‐chamber method. In the ridge soil, although the plastic mulching increased the CO 2 concentration by 49% (0–40 cm), no significant difference in CO 2 emissions was found between the mulched and nonmulched treatments. Accordingly, the relationship between soil CO 2 concentration and CO 2 emissions was affected by plastic mulching, with a lower slope of the linear equation found in the mulched treatment compared to the nonmulched treatment. In the furrow soil, the plastic mulching increased the CO 2 concentration and emissions by 15% and 21%, respectively. In conclusion, plastic mulching significantly increased the CO 2 concentration in both the ridge and furrow soils and increased the cumulative CO 2 emissions by 8%. The temperature sensitivity of the soil CO 2 concentration increased with soil depth, whereas the plastic mulching only influenced the temperature sensitivity of the soil CO 2 concentration in both the ridge and furrow soils at a depth of 40 cm. Our results suggest that the temperature sensitivity of the soil CO 2 concentration not only reflects the effects of temperature on CO 2 production but also indicates poor diffusion in the deep profile.

Table of contents – Volume 32, Issue 2

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The tables of contents are generated automatically and are based on the data records of the individual contributions available in the index of the TIB portal. The display of the Tables of Contents may therefore be incomplete.

151
Determining the longer term decline in plant‐available soil phosphorus from short‐term measured values
Johnston, A. E. / Poulton, P. R. / White, R. P. / Macdonald, A. J. et al. | 2016
162
The relationship between water‐soluble P and modified Morgan P: results based on data and chemical modelling.
Lumsdon, D. G. / Shand, C. A. / Wendler, R. / Edwards, A. C. / Stutter, M. I. / Richards, S. / Sinclair, A. H. et al. | 2016
172
Pedotransfer functions to assess adsorbed phosphate using iron oxide content and magnetic susceptibility in an Oxisol
Camargo, L. A. / Marques, J. Jr. / Pereira, G. T. / Alleoni, L. R. F. / Bahia, A. S. R. de S. / Teixeira, D. De B. et al. | 2016
183
Nitrogen release from differently aged Raphanus sativus L. nitrate catch crops during mineralization at autumn temperatures
Thomsen, I. K. / Elsgaard, L. / Olesen, J. E. / Christensen, B. T. et al. | 2016
192
Effects of cover crop growth and decomposition on the distribution of aggregate size fractions and soil microbial carbon dynamics
Linsler, D. / Kaiser, M. / Andruschkewitsch, R. / Piegholdt, C. / Ludwig, B. et al. | 2016
200
Soil organic matter quality and microbial activities in spruce swamp forests affected by drainage and water regime restoration
Mastný, J. / Urbanová, Z. / Kaštovská, E. / Straková, P. / Šantrůčková, H. / Edwards, K. R. / Picek, T. et al. | 2016
210
Effects of short‐rotation Eucalyptus plantations on soil quality attributes in highly acidic soils of the central highlands of Ethiopia
Temesgen, D. / Gonzálo, J. / Turrión, M.B. et al. | 2016
220
Clear‐cutting and slash burning effects on soil CO2 efflux partitioning in Chinese fir and evergreen broadleaved forests in subtropical China
Guo, J.F. / Chen, G.S. / Xie, J.S. / Yang, Z.J. et al. | 2016
230
Plastic mulching increased soil CO2 concentration and emissions from an oasis cotton field in Central Asia
Yu, Y. / Zhao, C. / Stahr, K. / Zhao, X. / Jia, H. et al. | 2016
240
Spatial analysis of long‐term effects of different tillage practices based on penetration resistance
Kuhwald, M. / Blaschek, M. / Minkler, R. / Nazemtseva, Y. / Schwanebeck, M. / Winter, J. / Duttmann, R. et al. | 2016
250
Comparison of various coulter‐type ground‐driven rotary subsoilers in terms of energy consumption and soil disruption
Celik, A. / Raper, R. L. et al. | 2016
260
Acknowledgement to retiring Associate Editors
| 2016
261
Acknowledgement to Reviewers
| 2016

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