The Influence of Soil Conditioning on Soil Infiltration Rate in Urban Facilities

Abstract

Several attempts have been made to increase the permeable area in the cities, which include the building of green facilities such as parks and urban forests. Since these areas were built with soil compaction, the potential for infiltrating water differs compared with the natural green area. Therefore, this research aims to analyze the influence of soil conditioning on the constant infiltration rate using variables such as soil compaction, texture, and the presence of vegetation cover in urban facilities. The data used were obtained through field infiltration measurement using a single ring infiltrometer. In this research, the analysis carried out includes soil texture, Horton equation, the difference between conditioned soils and control plots, and USDA hydrologic soil classifications. The results showed that all variables (soil compaction, the presence of vegetation cover, and soil texture) have a significant effect on the constant infiltration rate. Based on the soil conditioning, the infiltration rate is increased on the vegetated plots and decreased on the plots with the combination of vegetation and compaction, as well as the compacted plots. Furthermore, the effect of vegetation cover is more significant in silt loam textured soil, while the influence of compaction is more on clay textured soil. The potential constant infiltration rate on the plots of similar characteristics with green urban areas are on K2 and L2 with 2.698 mm/h and 1.525 mm/h, respectively. Therefore, these plots have a moderate runoff potential based on USDA hydrologic soil classification.
 Keywords: Compaction; Infiltration; Soil conditioning; Urban facilities
 
 Copyright (c) 2021 Geosfera Indonesia and Department of Geography Education, University of Jember
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Performance of Wanggu Watershed Management Based on Land Indicators

“…The role of vegetation cover is very important, especially as a regulator of the water system, especially in a watershed which affects runoff and soil erosion (Qazi et al, 2017;Ophiyandri et al, 2021;Sugianto et al, 2022). The effect of changing vegetation cover to become non-vegetated can reduce the function of the watershed to increase water infiltration (Nugroho and Hadi, 2021;Muñoz et al, 2017). Increased use of dry land agricultural land has a high risk of soil erosion and if optimal management is not carried out in accordance with soil and water conservation principles it can result in land degradation (Prashanth et al, 2023).…”

“…This can disrupt the function of the watershed as a regulator of water management and protect downstream areas from flooding and sedimentation (Sugianto et al, 2022). Inadequate vegetation cover can reduce the ecosystem functions of the Wanggu Watershed, such as increasing water infiltration, water regulation, and carbon sequestration (Nugroho and Hadi, 2021). Reduced ecosystem function can have a negative impact on water quality, biodiversity, and environmental sustainability.…”

“…An increase in land use means a reduction in the percentage of vegetated land cover it can reduce the capacity of water resources, soil degradation, decreased productivity, and an increase in degraded land increases sharply every year (Rudiarto et al, 2020). This occurs due to a lack of water absorption which can increase the runoff rate as a cause of soil erosion (Nugroho and Hadi, 2021).…”