长期不同种植方式对土壤孔隙结构微形态特征的影响  

Soil Micro Pore Structure Properties as Affected by Long-term Application of Different Planting Patterns

作　　者：刘哲 LIU Zhe(Shaanxi Provincial Land Engineering Construction Group Co.,Ltd./Key Laboratory of Degraded and Unused Land Consolidation Engineering,the Ministry of Land and Resources/Shaanxi Provincial Land Consolidation Engineering Technology Research Center,Xi＇an 710075,China)

机构地区：[1]陕西省土地工程建设集团有限责任公司/国土资源部退化及未利用土地整治工程重点实验室/陕西省土地整治工程技术研究中心,西安710075

出　　处：《湖北农业科学》2018年第12期44-47,共4页Hubei Agricultural Sciences

基　　金：长安大学中央高校基本科研业务专项资金项目(300102278501);陕西省重点科技创新团队计划项目(2016KCT-23)

摘　　要：试验共设置有机种植、无公害种植、常规种植3个处理,利用图像处理软件研究分析土壤薄片,对比分析不同种植方式对土壤孔隙结构的影响。结果表明,有机种植方式能在增大土壤总孔隙度的同时,明显增加当量孔径>100μm的孔隙数量,改善大小孔隙的分布比例,是调节和改善土壤孔隙结构的重要方式。Three planting patterns organic planting, pollution-free planting and conventional planting were conducted to show their effect on soil pore structure properties in greenhouse and farmland respectively. Soil slices and digital image processing were used for data analysis. The results showed that long-term organic planting changed significantly soil pore distribution and soil total porosity compared with conventional cultivation. The organic planting also improved the distribution ratio of the size pore and obviously increased the number of ventilation of the soil pore proportion of equivalent pore diameter〉 100 μm.Therefore,organic planting was an effective measure to improve soil pore structure properties.

关 键 词：种植方式 土壤薄片 土壤孔隙度 当量孔径 

分 类 号：S152.5[农业科学—土壤学]