| abstract |
The invention discloses a feature analysis method of soil aggregate composition structure by biochar, wherein the turf is a product in a marsh development process, is formed in the quaternary stage, and is formed by incomplete decomposition and accumulation of residues of marsh plants under the anaerobic condition of watery land. The invention has various soil types in China, large difference of the composition, structural property and the like of representative soil particles in different areas, and different soil stability. At present, China has little research on various indexes of aeolian sandy soil improved by biochar, so that the method aims to research by adopting a positioning method on the aeolian sandy soil in the western Liaoning, explore the effect difference of grass carbon, charcoal and straw carbon on the improvement of the physical structure of the aeolian sandy soil and the stability of soil aggregate by a comparative analysis method, explore the best effect of the addition amount of the biochar on the improvement of the stability of the aeolian sandy soil aggregate by a variable control method, contribute to providing a certain scientific basis for the improvement of the aeolian sandy soil in the western Liaoning in future and increase a selectable mode for improving the agricultural productivity level in the northern Liaoning of the western Liaoning. |