XIAO Peiwen1,2, XIAO Baohua1,2
(1. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry Chinese Academy of Sciences, Guiyang 550002, China;
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China)
Abstract: Soil carbon pool is an important source and sink in the carbon cycle of terrestrial ecosystem, and its small change will cause huge feedback to atmospheric CO2 content. About 1 500 Gt of organic carbon is stored in soil all over the world. The migration and transformation of soil organic carbon has been a hot topic for scholars. Soil column leaching experiment is widely used in agriculture, forestry, environmental science and other research fields, and has made a lot of achievements in solute transport simulation, soil hydrological properties, heavy metals and pollutant migration and transformation. The design details of the soil column leaching experiment are directly related to the authenticity of the experimental results. This paper summarized the present situation of soil column leaching experiment at home and abroad, discussed some common problems in the soil column leaching experiment design. Finally, the prospect of the application of soil column leaching experiment in the study of soil organic matter migration and transformation is put forward based on the review of previous researches.
Key words: soil organic carbon; soil column; soil column experiment; experimental design; review
EARTH AND ENVIRONMENT Vol.49, No.1, Tot No.339, 2021, Page 106