Biodestruction of strongly swelling polymer hydrogels and its effect on the water retention capacity of soils

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• 作者：A. V. Smagin (1) (2) <br> N. B. Sadovnikova (1) <br> M. V. Smagina (3) <br>
• 关键词：temperature ; simulation ; water retention capacity ; water retention curve
• 刊名：Eurasian Soil Science
• 出版年：2014
• 出版时间：June 2014
• 年：2014
• 卷：47
• 期：6
• 页码：591-597
• 全文大小：
• 参考文献：1. V. I. Budnikov, V. V. Sinkin, and V. N. Strel鈥檔ikov, 鈥淎 study of water sorption characteristics of filled acryl copolymers,鈥?Zh. Prikl. Khim. 83(8), 1233鈥?408 (2010). <br> 2. L. A. Vorob鈥檈va, / Chemical Analysis of Soils (Izd. Mosk. Gos. Univ., Moscow, 1998) [in Russian]. <br> 3. A. D. Voronin, / Structural-Functional Hydrophysics of Soils (Izd. Mosk. Gos. Univ., Moscow, 1984) [in Russian]. <br> 4. M. V. Glagolev and A. V. Smagin, / MATLAB Applications for Numeric Problems in Biology, Ecology, and Soil Science (Izd. Mosk. Gos. Univ., Moscow, 2005) [in Russian]. <br> 5. K. S. Kazanskii, G. V. Rakova, and N. S. Enikolopov, 鈥淪trongly swelling polymer hydrogels and water-retaining amendments,鈥?in / Natural Resources of Deserts and Their Development (Ylum, Ashkhabad, 1986), pp. 147鈥?48 [in Russian]. <br> 6. A. V. Smagin, / Gaseous Phase of Soils (Izd. Mosk. Gos. Univ., Moscow, 2005) [in Russian]. <br> 7. A. V. Smagin, 鈥淭heory and methods of evaluating the physical status of soils,鈥?Eur. Soil Sci. 36(3), 301鈥?12 (2003). <br> 8. A. V. Smagin, / Theory and Practice of Soil Construction (Izd. Mosk. Gos. Univ., Moscow, 2012) [in Russian]. <br> 9. A. V. Smagin and N. B. Sadovnikova, / The Impact of Strongly Swelling Polymeric Hydrogels on the Physical State of Coarse-textured Soils, (MAKS Press, Moscow, 2009) [in Russian]. <br> 10. A. V. Smagin and N. B. Sadovnikova, and Mizuri Maauia Ben-Ali, 鈥淭he determination of the primary hydrophysical function of soil by the centrifuge method,鈥?Eur. Soil Sci. 31(11), (1998). <br> 11. A. V. Smagin, N. B. Sadovnikova, M. V. Smagina, M. V. Glagolev, et al., / Modeling of the Dynamics of Soil Organic Matter (Izd. Mosk. Gos. Univ., Moscow, 2001) [in Russian]. <br> 12. V. N. Strel鈥檔ikov, V. I. Budnikov, and V. V. Sinkin, 鈥淧olymer hydrogel in soil irrigation technologies,鈥?Agrarn. Nauka, No. 10, 18鈥?9 (2007). <br> 13. / Theory and Methods of Soil Physics (Grif i K, Moscow, 2007) [in Russian]. <br> 14. E. V. Shein, / A Course of Soil Physics (Izd. Mosk. Gos. Univ., Moscow, 2005) [in Russian]. <br> 15. A. M. Al-Darby, 鈥淭he hydraulic properties of a sandy soil treated with gel-forming soil conditioner,鈥?Soil Technol. 9(1鈥?), 15鈥?8 (1996). blank" title="It opens in new window">CrossRef <br> 16. A. V. Smagin, S. A. Shoba, R. R. Kinjaev, et al., / Arid-Grow鈥擨deal Soil System (M-Manama, MSU press, 2005). <br>
• 作者单位：A. V. Smagin (1) (2) <br> N. B. Sadovnikova (1) <br> M. V. Smagina (3) <br><br>1. Faculty of Soil Science, Moscow State University, Moscow, 119991, Russia <br> 2. Institute of Ecological Soil Science, Moscow State University, Moscow, 119991, Russia <br> 3. Institute of Forestry, Russian Academy of Sciences, Uspenskoe, Odintsovo raion, Moscow oblast, 143030, Russia <br>
• ISSN：1556-195X

文摘

The biodestruction of strongly swelling polymer hydrogels (water adsorbing soil conditioners of the new generation) has been studied at the quantitative level using original mathematical models. In laboratory experiments, a relationship between the hydrogel degradation rate and the temperature has been obtained, and the effect of the biodestruction on the water retention curve of soil compositions with hydrogels (used as an index of their water retention capacity) has been assessed. From the automatic monitoring data of the temperature regime of soils, the potential biodestruction of hydrogels has been predicted for different climatic conditions. The loss of hydrogels during three months of the vegetation period because of destruction can exceed 30% of their initial content in irrigated agriculture under arid climatic conditions and more than 10% under humid climatic conditions. Thus, the biodestruction of hydrogels is one of the most important factors decreasing their efficiency under actual soil conditions.