The Impact of Land Use on Hydrological Characteristics in Kaligarang Watershed

Susilo Budiyanto (Agriculture Department, Faculty of Animal and Agriculture Science, Diponegoro University)
S.D. Tarigan (Soil Science and Land Resources Department, Faculty of Agriculture, Bogor Agricultural University, Bogor)
N. Sinukaban (Soil Science and Land Resources Department, Faculty of Agriculture, Bogor Agricultural University, Bogor)
K. Murtilaksono (Soil Science and Land Resources Department, Faculty of Agriculture, Bogor Agricultural University, Bogor)

International Journal of Science and Engineering (IJSE)
Vol 8, No 2 (2015)

The increasing number of population in Kaligarang watershed will cause population pressure that will have a direct impact on land-use change and in turn will have an impact on watershed hydrological characteristics. Watershed management planning as an integral part of land-use and conservation based development is very important and need to be applied. The aims of this research were to analyze land-use changes in Kaligarang watershed, and the impact of land-use changes on watershed hydrological characteristics in Kaligarang. The results of this research showed that in Kaligarang watershed, there was a decrease in forest area of 2.28% and rice field of 13.96%, an increase in resident area of 2.14%, dry land farming of 5.82% and mixed dry land farming of 10.03%. The decreasing forest area caused an increase in runoff coefficien (CRO= 147.5 – 7.06F), an increase in average daily maximum discharge (Qmax(cms) = 79.33 – 4.23 F) and a decrease in baseflow (BF (cms) = -1.65 + 0.36 F)