The effects of using mushroom material on reclamation soil physical characteristic in coal mineral area

LI Bing; LI Xin-ju; LIU Xue-ran

Abstract：In order to reveal the effects of using mushroom material on the physical properties of reclamation land of coal mining area, took the undamaged land as a contrast, arranged nine sample points, and analyzed the effects of using mushroom material on the physical properties of the reclamation land, such as soil compaction, bulk density, soil mois-ture, and types of soil particles(clay, silt, sand) etc. The results show that with the time increases, the soil compaction, bulk density of land are also increasd by using mushroom material. Compared with block 3 which doesn' t use mush-room material, the surface soil compaction of expected four years application of mushroom material land 4 increases 71% ; and the bulk density increases 0. 27 g/cm~3. Soil compaction increase is due to irrigation and rain, while bulk density increase is due to the misture of decomposed mushroom and soil. Compared with block 3 which doesn' t use mushroom material, the surface soil clay of expected four years application of mushroom material land 4 increases 0. 6%, and the silt increases 14. 27%. Using mushroom material can improve the soil particles distributions and struc-tures and increase the soil content of layers 1 ～ 3, which also led to the soil surface compaction and bulk density in-crease. The mixture of mushroom material and soil increases the resistance of water infiltration and soil moisture. The soil moisture of the land which used mushroom material increases 3% ～ 4%.