不同践踏程度对观赏草坪的影响

Effects of Trample on Decorative Turfgrass

以山西农业大学校园观赏草坪为研究对象,选择建植5年以上的草地早熟禾草坪为试验地,设重度、中度、轻度践踏和未践踏4个处理,分别对其草坪草高度、盖度、密度、均一性、地上生物量、地下生物量及土壤水分、土壤孔隙度等指标进行分析研究。研究结果表明,随着践踏程度的增加,草坪草高度、盖度、密度、均一性、地上生物量、地下生物量及土壤水分、土壤孔隙度均呈现下降趋势,而土壤容重呈上升趋势。

The decorative turf grass was chosen for research in Shanxi Agricultural University. The turfgrasses have grown for more than five years. The dominant species is of Kentucky bluegrass （Poa pratensis cv. Glade）. The experimental plots divided into four treatments, They are severe trample, middle trample, light trample and not trample to the grass. The height, coverage, density, uniformity, above ground b omass, under ground biomass, moisture of soil and soil porosities were analyzed. The result showed that with degree of trample increased, turfgrass height , coverage, density, uniformity, above ground biomass,under ground biomass , moisture of soil and soil porosity showed declined trend. But soil bulk density showed opposite result.