| dc.identifier.citation | Asdak, C. (2002) Hidrologi dan Pengelolaan Daerah Aliran Sungai (edisi 2), Yogyakarta: Gadjah Mada University Press. Haan, C.T., Johnson, dan D.L. Brakensiek. (1982) Hydrologic Modeling of Small Watershed. Michigan: An ASAE Monograph. Hadi, M.P. (2006) Pemahaman Karakteristik Hujan Sebagai dasar Pemilihan Model Hidrologi (Kasus di DAS Bengawan Solo Hulu). Forum Geografi. vol. 20, no. 1, pp. 13-26. Khasanah, N., Lusiana, B., Farida, Noordwijk, van M. (2004) Simulasi Limpasan Permukaan dan Kehilangan Tanah pada Berbagai Umur Kebun Kopi: Studi Kasus di Sumberjaya, lampung Barat. Jurnal Agrivita. vol. 26, no. 1, pp. 81-88. Kinoshita and Nekane (2002) Study on Surface Runoff (Part 1). Effects of Rainfall Intensity on Surface Runoff from The Experimental Plot. National Research Center for Disaster Prevention. http://www.bosai.go.JP/ad/report/abstract/re 18-3/html. Laoh, O.E.H. (2002) Keterkaitan Faktor Fisik, Faktor Sosial, Ekonomi, dan Tata Guna Lahan di Daerah Tangkapan Air dengan Erosi dan Sedimentasi (Studi Kasus Tondano, Sulawesi Utara). Disertasi. Bogor: Pascasarjana IPB. Mustofa, Y.M., Amin, M.S.M., Lee, T.S., dan Shariff, A.R.M. (2005) Evaluation of Land Development Impact on a tropical Watershed Hydrology Using Remote Sensing and GIS. Journal Of Spatial Hydrology. vol. 5, no.2. Robin, W.S. danNicholas, K. (2004) Evaluating The Effect of landuse on Peak Discharge and Runoff in the Soratoga Lake Watersheed, Paper No. 58-22 Northeastern Section (39th Annual and Southeastern Section), Joint Meeting March 25-27-2004. Setyowati, D.L. (2010) Hubungan Hujan dan Limpasan pada Berbagai Dinamika Spasial Penggunaan Lahan di DAS Kreo Jawa Tengah. Disertasi. Yogyakarta: Program Pascasarjana Fakultas Geografi UGM. Yusmandhany, E. S. (2004) Kemampuan Potensial Tanah Menahan Air Hujan dan Limpasan permukaan Berdasarkan Tipe Penggunaan Lahan di Daerah Bogor Bagian Tengah. Buletin Teknik Pertanian. vol.9, no. 1, pp. 26-29. | en_US |
| dc.description.abstract | Tendency of landuse conversion is followed by maximum discharge of Kreo River, but unknown land use
type what which can race improvement of runoff. Purpose of the research is study the relation of rainfall
runoff at forest, rice field, and mixed garden. Research about rainfall runoff study is including research
type of experiment for purpose of descriptive, through observation of rain data and water level at small
watershed with one land use types that is forest, ricefield, and mixed garden. Instrument of rain and
water level attached at small watershed during the rains 2007.Data analysis comprises analysis of
stream hydrograph, rain analysis, stream coefficient, and statistic analysis as well. Big the so small
runoff value is more determined by rainfall amounts happened non land use type. Number of big rains
at one land use will yield big runoff also, while the same rainfall amounts at some land use types will
yield varying runoff follows land use type and condition of soil At small watershed (less than 200 ha),
the relation of rainfall (P) with direct runoff (DRO) has very strong correlation (R2 bigger than 0.7).
Relation between rain intensity (I) with DRO; I with peak discharge (Qp); duration of rain (DR) with
DRO; DR with Qp indicated weak reaction (R2 less than 0.3). It indicated there were many factors
(more than 70%) which influenced the above mentioned relations. Runoff coefficient value at forest was
0,3566, mix forest was 0,4227, rice field was 0,6661, and mixed garden was 0,4227. Land ability
to permeate in the forest (65%) is bigger than mixed garden (57%) and ricefield (33%) | en_US |
