Original scientific paper

https://doi.org/10.17559/TV-20191230171234

Comparative Study and Simulation of Soil Infiltration Performance in Open Green Space

Yu Zhang ; College of Landscape, Northeast Forestry University, China; School of Art & Design, Dalian Polytechnic University, China, No.1 Qinggong Yuan, Ganjingzi District, Dalian, Liaoning Province, China
Fucun Cao ; School of Art & Design, Dalian Polytechnic University, China, No.1 Qinggong Yuan, Ganjingzi District, Dalian, Liaoning Province, China
Leichang Huang ; School of Art & Design, Dalian Polytechnic University, China, No.1 Qinggong Yuan, Ganjingzi District, Dalian, Liaoning Province, China
Yunwei Zhou ; College of Landscape, Northeast Forestry University, China, 26 Hexing Road, Xiangfang district, Harbin, Heilongjiang Province, China
Zhao Yang ; Department of Business, Government and Law, Flinders University, Australia, Sturt Road, Bedford Park SA 5042, Adelaide, Australia

Abstract

Soil infiltration is important for urban open space to exert sponge benefits, and its permeability characteristics are influenced by physical and chemical properties. To determine the characteristics and differences of soil permeability in different open spaces, we used the cutting-ring method to measure the soil infiltration process in four types of open space. The effects of physicochemical properties on soil infiltration were analyzed through comparison. The infiltration process of the four types of green spaces was fitted on the basis of Kostiakov and Philip infiltration models, and the suitability of the models was discussed. The water infiltration process shows that the law of initial infiltration rate > average infiltration rate > stable infiltration rate. The stable infiltration rate of each green space ranges from 2.46 mm/min to 3.60 mm/min, and the ranking is as follows: park > square > block > other shared space. The determination coefficient of the Kostiakov model for the soil infiltration process of the four types of green space is higher than 0.94, which is suitable to describe the soil infiltration characteristics of green space in the study area. The soil infiltration performance of green space shows a negative correlation with soil bulk density and moisture content but a positive correlation with non-capillary porosity. This study provides a reference for the construction of sponge cities and ecological hydrological observation.

Keywords

infiltration model; influencing factors; open space; soil in green space; water infiltration

Hrčak ID:

239089

URI

https://hrcak.srce.hr/239089

Publication date:

14.6.2020.

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