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上海疚通大¥ SHANGHAI JIAO TONG UNIVERSITY Page.01 ·Analysis of soil characteristics土壤特征分析 0.005 0.0045 文教区域和居住区绿地土壤的渗透性较高 (5×10-3mms-1),原因可能是相对较少的人E 0.004 类活动踩踏; 0.0035 0.003 与此相反,,道路绿地土壤容重比较高,但孔隙 0.0025 度较低,其渗透性相对较低。 0.002 the soil in the road green belt has higher soil 0.0015 bulk density,lower porosity,and lower 0.001 permeability due to compaction and tread. 0.0005 0 ·由于土壤渗透性直接影响雨水蓄积的能力, 因此运用适合的土壤改良材料可以有效提升 土壤的物理性质,满足海绵城市中土壤入渗 Recidential Area Public Green Space Commercial Area Educational Area Road Green Belt 的需(0.1×10-3to0.1mms-1) Figure 4-2-5.Comparison of soil infiltration rates for green space function typesPage . 01 • Analysis of soil characteristics 土壤特征分析 0 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 0.004 0.0045 0.005 Recidential Area Public Green Space Commercial Area Educational Area Road Green Belt S oil Infiltratio n R ate(m m /s) Figure 4-2-5.Comparison of soil infiltration rates for green space function types • 文教区域和居住区绿地土壤的渗透性较高 (510-3mm·s -1),原因可能是相对较少的人 类活动踩踏; • 与此相反,,道路绿地土壤容重比较高,但孔隙 度较低,其渗透性相对较低。 • the soil in the road green belt has higher soil bulk density, lower porosity, and lower permeability due to compaction and tread. • 由于土壤渗透性直接影响雨水蓄积的能力, 因此运用适合的土壤改良材料可以有效提升 土壤的物理性质,满足海绵城市中土壤入渗 的需 (0.110-3 to 0.1 mm·s -1 )
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