Soil infiltration capacity of sunken green space and the effects of water storage on soil physical properties in Beijing
Zhu Yongjie,Bi Huaxing,Huo Yunmei,Xu Huasen
1. School of Soil and Water Conservation,Beijing Forestry University,100083,Beijing,China; 2. Beijing Forestry University, Forestry Ecological Engineering Research Center,Ministry of Education,100083, Beijing,China
Abstract：In order to analyze the law of soil water infiltration in the sunken green space, we monitored dynamically the permeation amount of soil moisture in the sunken green space and the average infiltration rate during the water storage process through simulating the influent water load of sunken green space at different rainfall intensities. The effect of collected rainwater runoff in the sunken green space on the soil porosity and bulk density during the process of collecting surrounding rainwater was explored. The results showed that: 1) Soil permeability in the sunken green space would increase with the increased rainstorm intensity at the heaviest rainfall once in 1, 3 and 5 years provided that the soil water contents are under essentially the same condition. 2) At the same intensity of rainstorm, there was no obvious difference in the permeation amount as well as average infiltration rate; the average infiltration rate tended to be larger for the soil with lower bulk density and larger total porosity. 3) With the times of water storage increasing, soil bulk density and total porosity changed greatly: the bulk density increased from 1.33 to 1.65 g/ cm3, while the total porosity dropped from the original 50.06% to 39.18% after the water storage experiment.
朱永杰1,毕华兴1,2,霍云梅1,许华森1. 北京地区下凹式绿地土壤渗透能力及蓄水对土壤物理性质的影响[J]. 中国水土保持科学, 2015, 13(1): 106-110.
Zhu Yongjie,Bi Huaxing,Huo Yunmei,Xu Huasen. Soil infiltration capacity of sunken green space and the effects of water storage on soil physical properties in Beijing. SSWCC, 2015, 13(1): 106-110.
2015, Vol. 13 
