Jin Man Wang

Land Consolidation and Rehabilitation Center

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Zhongke Bai

Land Consolidation and Rehabilitation Center

Yu Feng

China University of Geosciences (Beijing)

Zhaorui Jing

Shandong Agricultural University

Qin Qian

Huazhong University of Science and Technology

Wenting Shi

Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)

Peiling Yang

China Agricultural University

Jiayan Li

Beijing Forestry University

Ruixuan Yang

Nanjing Agricultural University

Lingli Guo

Air Force Medical University

Qisheng Xu

China University of Geosciences (Beijing)

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China University of Geosciences (Beijing)

Chinese Academy of Sciences

University of Chinese Academy of Sciences

Land Consolidation and Rehabilitation Center

Ministry of Natural Resources

China University of Geosciences

Tsinghua University

Institute of Geographic Sciences and Natural Resources Research

University of Hong Kong

Beijing Normal University

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Effect of Byproducts of Flue Gas Desulfurization on the Soluble Salts Composition and Chemical Properties of Sodic Soils

PLoS ONE (2013)

Jin Man Wang Zhongke Bai Peiling Yang

The byproducts of flue gas desulfurization (BFGD) are a useful external source of Ca2+ for the reclamation of sodic soils because they are comparatively cheap, generally available and have high gypsum content. The ion solution composition of sodic soils also plays an important role in the reclamation process. The effect of BFGD on the soluble salts composition and chemical properties of sodic soils were studied in a soil column experiment. The experiment consisted of four treatments using two different sodic soils (sodic soil I and sodic soil II) and two BFGD rates. After the application of BFGD and leaching, the soil soluble salts were transformed from sodic salts containing Na2CO3 and NaHCO3 to neutral salts containing NaCl and Na2SO4. The sodium adsorption ratio (SAR), pH and electrical conductivity (EC) decreased at all soil depths, and more significantly in the top soil depth. At a depth of 0–40 cm in both sodic soil I and sodic soil II, the SAR, EC and pH were less than 13, 4 dS m−1 and 8.5, respectively. The changes in the chemical properties of the sodic soils reflected the changes in the ion composition of soluble salts. Leaching played a key role in the reclamation process and the reclamation effect was positively associated with the amount of leaching. The soil salts did not accumulate in the top soil layer, but there was a slight increase in the middle and bottom soil depths. The results demonstrate that the reclamation of sodic soils using BFGD is promising.

Sodic soil

Alkali soil

10.1371/journal.pone.0071011

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Citations (25)

Potential flue gas desulfurization gypsum utilization in agriculture: A comprehensive review

Renewable and Sustainable Energy Reviews (2017)

Jin Man Wang Peiling Yang

10.1016/j.rser.2017.07.029

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Citations (131)

Life cycle assessment of opencast coal mine production: a case study in Yimin mining area in China