Abstract:

This paper reviews and previews the research on integrated soil amelioration techniques for biology, physics and chemistry. This paper can be concluded as: (1) application of earthworms and biofertilizers are two main biological amelioration techniques in land consolidation areas which can obviously ameliorate the physical and chemical properties of soil; (2) mechanical subsoiling is the main physical ameliorate technique utilized to solve the problem of soil compaction in land consolidation areas; (3) chemical fertilizer application is the main chemical ameliorate technique used to improve the soil fertility and soil biological properties in land consolidation areas. At present, the biological, physical and chemical ameliorate techniques can evidently increase soil quality but there are still some defectiveness need to be improved. Firstly, the integrated soil amelioration technique for biology, physics and chemistry is relative paid less attention. Secondly, the transferability of joint operation machineries is bad without standard of subsoiling machines and depth. Thirdly, research on the biological, physical and chemical ameliorate techniques in the short term after land consolidation is deficient. Lastly, the collaboration between biological, physical and chemical ameliorate techniques and consolidation construction is loose. Research in the four above aspects should be strengthened in the future.