施用蘑菇料对煤矿区复垦土壤物理特性的影响  

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

作　　者：李兵[1] 李新举[1] 刘雪冉[1] 

机构地区：[1]山东农业大学资源与环境学院,山东泰安271018

出　　处：《煤炭学报》2010年第2期288-292,共5页Journal of China Coal Society

基　　金："十一五"国家科技支撑计划资助项目(2008BAB38B02);国家博士后基金资助项目(200604000532);山东省中青年科学家基金资助项目(2006ds08018)

摘　　要：为揭示施用蘑菇料对煤矿区复垦土壤物理性状的影响,以未破坏土地为对照,布置了9个采样点,分析了施用蘑菇料对复垦土壤紧实度、密度、含水量、土壤颗粒类型(黏粒、粉粒、砂粒)等物理性状的影响。结果表明:随着时间的增加,施用蘑菇料的地块土壤紧实度、密度增加。施用蘑菇料4a的地块4与未施蘑菇料的地块3相比,表层土壤紧实度增加71%,密度增加0.27g/cm3。紧实度增加是由于灌溉、降雨所致,蘑菇料腐烂且与土壤混为一体导致土壤密度增加;施用蘑菇料改良了土壤颗粒结构和分布,土壤1～3层的黏粒、粉粒含量增加。施用蘑菇料4a的地块4与未施蘑菇料的地块3相比表层土壤黏粒增加0.6%,粉粒增加14.27%,从而也导致了土壤表层紧实度和密度的增加。蘑菇料与土壤混为一体,增加了水分向地下渗透的阻力,有利于土壤含蓄水分,增加了土壤含水量,施用蘑菇料的地块土壤含水量增加3%～4%。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/cm3. 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%.

关 键 词：蘑菇料 土地复垦 土壤物理性状 

分 类 号：TD88[矿业工程—矿山开采] S151.9[农业科学—土壤学]