Abstract:
Land cover can affect the physical properties of the soil related to the rate, capacity
and volume of infiltration in a land. The purpose of this study was to determine the rate of
infiltration and to analyze the volume and capacity of infiltration in various land covers to formulate
and evaluate environmental vulnerability in the Tabunio and Maluka watersheds. The research
activities were carried out in the Amparo Kecil watershed, the Tabunio watershed and the Bati Bati watershed, the Maluka watershed, South Kalimantan province. The main equipment used in
this research are double ring infiltrometer, GPS (Global Positioning System), GIS (Geographic
Information System) application to determine capacity and infiltration volume of each land unit. In
the small Amparo watershed Tabunio watershed, it can be seen that environmental vulnerability
is: a) The highest infiltration capacity was found in young secondary forest land, namely 334.92
mm/hour and the highest infiltration volume was found in old secondary forest land cover, namely
307.37 mm3, while the capacity and the lowest infiltration volume was found in shrub land cover,
namely 49.12 mm/hour and 27.85 mm3. b) Environmental vulnerability to shrub land cover with
an infiltration rate of 28.33 mm/hour, a capacity of 49.12 mm/hour and an infiltration volume of
27.85 mm3
.
