【摘要】 为林下规模种植和可持续耕作提供理论依据,分析油茶林下分别间作天门冬、马铃薯和白菜各土层土壤的水分、容重及土壤孔隙度等物理性状指标。结果表明:除油茶间作天门冬的20～40cm土层外,其他处理各土层土壤的含水量均显著高于CK(油茶纯林);3个土层中油茶纯林(CK)的土壤容重最大,为1.42g/cm3;间作模式下的土壤总孔隙度、毛管孔隙度和通气孔隙度多高于CK。油茶林地间作能增强土壤耕作层的通透性,在一定程度上能有效缓解耕作层土壤板结,具有改善土壤物理性状的作用。在试验地及类似生态区建议油茶林地间种马铃薯和天门冬。更多还原

【Abstract】 To provide a theoretical basis for the scale planting and sustainable tillage in the forest,the physical properties such as water,bulk density and soil porosity of the soils of Tianmendong,potato and Chinese cabbage intercropped with Camellia oleifera were separately analyzed.Results:Except for the20-40 cm soil of Tianmendong intercropped with C.oleifera,the soil water content of each soil layer of other treatment was significantly greater than that of CK(pure C.oleiferaforest);The soil bulk density of CK ranked the maximum in three soil layers,up to 1.42 g/cm3;The total soil porosity,capillary porosity and aeration porosity of the intercropping mode were much greater than CK.The intercropping of C.oleiferaforest could enhance the permeability of soil tillage layer,and also could effectively alleviate the soil compaction of tillage layer to a certain extent,and had the effect of improving soil physical properties.Potato and Tianmendong were recommended to plant in experimental sites and similar ecological areas.更多还原