【摘要】 [目的]研究不同踩踏压实度对绿地不同植被结构下土壤物理性状的影响，为稳定城市绿地生态系统提供科学依据。[方法]在南昌市江西农业大学内选择多处不同踩踏压实及不同植被结构的试验样地，分别测定0～20和20～40 cm土层土壤的容重、土壤持水能力、土壤渗水能力等物理指标，分析不同踩踏压实度对土壤的影响以及不同植被结构下土壤的差异。[结果]随踩踏压实度的增强，土壤容重逐渐增大，土壤含水率呈先增后减的趋势，土壤持水量、总孔隙度及土壤毛管孔隙度均产生不同程度的降低；踩踏压实度与土壤容重、孔隙度、持水量均呈显著相关(P<0.01),与土壤容重呈显著正相关，与土壤孔隙度、持水量和渗透速率呈显著负相关(P<0.01)。随着踩踏压实度的增强，表层土壤渗透性呈降低趋势，重度踩踏压实时，土壤的渗透性接近于0;表层土壤孔隙度、持水量指标受踩踏压实度的影响大于深层土壤，乔草植被结构的土壤渗透性优于草地结构。[结论]轻度的踩踏会使土壤含水率上升，中度及以上强度的踩踏压实使得土壤物理性质退化及土壤涵养水源功能降低。更多还原

【Abstract】 [Objective] To study the effects of different trampling compaction on soil physical properties under different vegetation structures in green space, and to provide a scientific basis for stabilizing urban green space ecosystems. [Method] A number of test plots with different tread compaction and different vegetation structures were selected in Jiangxi Agricultural University in Nanchang City, and the physical indexes such as bulk weight, soil water-holding capacity, and soil infiltration capacity were determined in the soil layers of 0-20 and 20-40 cm, respectively. [Result] With the increase of trampling compaction degree, the soil bulk weight gradually increased, soil water content showed a tendency of increasing and then decreasing; soil water holding capacity, total porosity and soil capillary porosity all produced different degrees of reduction; trampling compaction was significantly correlated with soil bulk weight, porosity and water holding capacity(P<0.01), and was significantly positively correlated with soil bulk weight, and significantly negatively correlated with soil porosity, water holding capacity and infiltration rate(P<0.01);with the increase of trampling compaction, the permeability of surface soil showed a decreasing trend, and when heavy trampling compaction, the permeability of soil was close to 0;surface soil porosity and water-holding capacity indexes were more affected by trampling compaction than deep soil, and the permeability of soil in the structure of arboreal vegetation was better than that in the structure of grassland. [Conclusion] Mild disturbance will make the soil water content rise, and excessive human disturbance makes the soil compactness increase, leading to the degradation of soil physical properties as well as the reduction of soil water-holding function.更多还原