ZHANG Xin, ZHAO Lanpo, ZHAO Xingmin, et al. Effects of Straw and Aluminum Sulfate on the Adsorption of Humic Acids on Soda Saline-alkali Soil[J]. 2019, 33(4): 308-314.
DOI:
ZHANG Xin, ZHAO Lanpo, ZHAO Xingmin, et al. Effects of Straw and Aluminum Sulfate on the Adsorption of Humic Acids on Soda Saline-alkali Soil[J]. 2019, 33(4): 308-314. DOI: 10.13870/j.cnki.stbcxb.2019.04.043.
Effects of Straw and Aluminum Sulfate on the Adsorption of Humic Acids on Soda Saline-alkali Soil
Aluminum sulfate improver has a good effect on reducing the pH of soda saline and alkaline soil and promoting soil colloidal condensation and organic carbon accumulation. In order to reveal the effect of aluminum sulfate improver on the carbon sequestration performance of soda saline-alkali soil under straw returning conditions
the adsorption performance of saline-alkaline soil on humic acid was studied after adding straw and aluminum sulfate and culturing for 300 days under constant temperature conditions. The results showed that in the adsorption kinetics of humic acid
under the different addition conditions of straw and aluminum sulfate
the adsorption of humic acid by saline-alkali soil reached the equilibrium of the quasi-second-order kinetic equation at 120 min
R2. The highest value (0.936). Both the Langmuir equation and the Freundlich equation can better fit the isothermal adsorption of humic acid by saline-alkaline soil. Under the condition of adding the same proportion of corn stover
the maximum adsorption amount obtained by the Langmuir equation was 69.335
42.830
40.498 and 42.593 mg/g
respectively. Under the condition of adding the same proportion of aluminum sulfate improver
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Related Author
SUN Yuanhong
ZHAO Xingmin
ZHAO Lanpo
ZHANG Jinjing
HE Rujing
LONG Jian
FAN Haijin
XIAO Ziman
Related Institution
Key Laboratory of Soil Resource Sustainable Utilization for Jilin Province Commodity Grain Bases, College of Resources and Environment, Jilin Agricultural University
Hunan Engineering Laboratory for Rice Quality and Safety Control
College of Environmental Science and Engineering, Central South University of Forestry and Technology
Jilin Da′an National Field Observation and Research Station of Agroecosystem, Da′an