Description:
Abstract
Watershed Tabunio is one of the watershed in the Province of South Kalimantan which has an
important role to support the environmental aspects and socio-economic aspects, it is caused
by the upstream part of the watershed there are different types of land use can increase the
rate of erosion, the flow surface, also on the middle and downstream utilized by the Tanah Laut
for agriculture, plantation and fisheries. This study aims to determine the level of erosion,
which is useful as a reference for determining the direction of land use for the carrying capacity
of watershed restoration efforts Tabunio.
This research method using a regional approach ecological watershed analysis process and
presentation done spatially through Geographic Information Systems. The results showed that:
a) Amount highest erosion 219,08 ton/ha/yr on Land Unit 3B (mining land use with a gradient
of 3-8%),
while the lowest amount of erosion 11,44 ton/ha/yr on Land Unit 8 (use secondary dry forest
with gradients of 25-40%); b) The level of erosion is very light Danger land unit 8 on the use
of secondary dry forest on the slope of 25-40%), while other land units at the rate of moderate
to severe erosion.
Recovery of the carrying capacity of the watershed Tabunio lower the rate of erosion through
soil and water conservation vegetatively and civil engineering (mechanical)
Keywords: Erosion, carrying capacity and Geographic Information System