THE IMPACT OF LAND USE CHANGE TO THE HIDROLOGICAL CONDITION OF BALANGTIENG WATERSHED

Edy Junaedi, M. Siarudin, Yongky Indrajaya, Ary Widiyanto

Abstract


Changes in land use may affect the hydrology of a watershed. This study aims to assess the hydrological conditions due to land use changes. The hydrological condition was predicted under four scenarios: (1) scenario 1, land use condition as in map 2009; (2) Scenario 2 is a change of 50% cocoa-coffee agroforestry to clove system in upstream area, and to monoculture rubber system in the middle and downstream area; (3) Scenario 3 is a change of 25% cocoa-coffee agroforestry to clove system in upstream area, and to monoculture rubber system in the middle and downstream area; (4) Scenario 4 is a change of 50% cocoa-coffee agroforestry to clove system in upstream area, and to monoculture rubber system in the middle and downstream area with a reduction of deforestation rate by 50%); and (5), Scenario 5 is a change of 25% cocoa-coffee agroforestry to clove system in upstream area, and to monoculture rubber system in the middle and downstream area with a reduction of deforestation rate by 50%. The prediction of water balance was measuredusing GenRiver model. Result shows that land use changes under scenario 1 and 2 do not affect the hydrological conditions, but need to watch out for the occurrence of flash floods. Reduction of deforestation rate in scenarios 3 and 4 can further improve the watershed hydrological conditions and maintain peak discharge during the rainy season

Keywords


Hidrology, watershed, land use change

Full Text:

PDF

References


Andreassian, V. 2004. Waters and forests: from historical controversy to scientific debate. Journal of Hydrology 291: 1-24.

Bormann, H., Breuer, L., Grff, T., Huisman, J.A. 2007. Analysing the effects of soil properties changes associated with land use changes on the simulated water balance: a comparison of three hydrological catchment models for scenario analysis. Ecol. Model. 209: 2940.

Bruijnzeel, L.A. 1990. Hydrology of moist tropical forests and effects of conversion: a state of knowledge review. UNESCO. International Hydrological Programme.

Bruijnzeel, L.A. 2004. Hydrological functions of tropical forests: not seeing the soil for the trees? Agriculture Ecosystems and Environment 104: 184-228.

Junaidi, E., Siarudin, M., Indrajaya, Y., Widiyanto, A,, Lusiana, B., Tanika, L., dan Harry, B. S. 2015. Dampak Sistem Agroforestry di Hutan Rakyat terhadap Kondisi Hidrologi DAS Balangtieng, Bulukumba, Sulawesi Selatan. Prosiding Seminar Agroforestry ke 5, Pengelolaan Lanskap Agroforestri Wilayah Kepulauan Menghadapi Efek Perubahan Iklim. Balai Penelitian Teknologi Agroforestry bekerjasama dengan Fakultas Pertanian Universitas Pattimura, World Agroforestry Centre (ICRAF), Indonesia Network for Agroforestry Education, dan Masyarakat Agroforestri Indonesia: 251 - 259

Farida dan M. van Noordwijk. 2004. Analisis Debit Sungai Akibat Alih Guna Lahan Dan Aplikasi Model Genriver Pada Das Way Besai, Sumberjaya. Jurnal Agrivita Vol. 26 No.1. Maret 2004. P :39 -47.

Fukunaga, D. C., Ceclio, R. A., Zanetti, S. S., Oliveira, L. T., Caiado, M. A. C. 2015. Application of the SWAT hydrologic model to a tropical watershed at Brazil. J. Catena 125: 206213.

Kobold, M., Suselj, K., Polajnar, j. dan Pogacnik, N. 2008. Calibration Techniques Used For HBV Hydrological Model In Savinja Catchment, XXIVth Conference Of The Danubian Countries On The Hydrological Forecasting And Hydrological Bases Of Water Management.

Lin, Y.J., Chang, Y.H., Tan, Y.C., Lee, H.Y., Chiu, Y.J. 2011. National policy of watershed management and flood mitigation after the 921 Chi-Chi earthquake in Taiwan. Nat. Hazards 56, 709731.

Lusiana B, Widodo R, Mulyoutami E, Nugroho Adi D. and van Noordwijk M. 2008. Kajian Kondisi Hidrologis DAS Talau, Kabupaten Belu, Nusa Tenggara Timur (waorking paper). World Agroforestri Centre ICRAF: SEA Regional Office.

Mahmoud, M.I., Gupta, H.V., Rajagopal, S. 2011. Scenario development for water resources planning and watershed management: methodology and semi-arid region case study. Environ. Model. Softw: 26, 873885.

Moriasi, D.N., Arnold, J.G., Van Liew, M.W., Bingner, R.L., Harmel, R.D., dan Veith, T.L. 2007. Model Evaluation Guidelines, For, Systematic Quantification Of Accuracy In Watersshed Simulations, American Society of Agricultural and Biological Engineers 20(3):885-900

Shi, Z.H., Ai, L., Fang, N.F., Zhu, H.D. 2012. Modeling the impacts of integrated small watershed management on soil erosion and sediment delivery: a case study in the Three Gorges Area, China. J. Hydrol. 438, 156167.

Siarudin, M., Junaidi, E., Widiyanto, A., Indrajaya, Y., Khasanah, N., Tanika, L., Lusiana, B., Roshetko, J. 2014. Kuantifikasi Jasa Lingkungan Air dan Karbon Pola Agroforestri pada Hutan Rakyat di Wilayah Sungai Jeneberang. Working paper. World Agroforestri Centre (ICRAF) Southeast Asia Program.

Singh, V.P. and Woolhiser, D.A. 2002. Mathematical modeling of watershed hydrology. J. Hydrol. Eng. 7, 270292.

Smettem, K., Harper, R. 2009. Using trees to manage local and regional water balances. In: Nuberg, I., George, B., Reid, R. (Eds.), Agroforestri for natural resource management. Australia: CSIRO PUBLISHING.

Van Noordwijk, M.,Farida A, Suyamto DA and Khasanah N. 2003. Spatial variability of rainfall governs river flow and reduces effects on landuse change at landscape scale: GenRiver and SpatRain simulations. MODSIM proceedings, Townsville (Australia) July 2003. Bogor, indonesia. World Agroforestri Centre ICRAF: SEA Regional Office.

Van Noordwijk, M, Agus, F, Suprayogo, D. Hairiah, K., Pasya, G., Verbist, B., dan Farida. 2004. Peranan Agroforestri Dalam Mempertahankan Fungsi Hidrologi Daerah Aliran Sungai (DAS). AGRIVITA VOL. 26: 1-8

Van Noordwijk, M., Widodo, R.H., Farida, A., Suyamto, D.A., Lusiana, B., Tanika, L. dan Khasanah, N. 2011. GenRiver and FlowPer User Manual Version 2.0. Bogor. Bogor Agroforstry Centre Southeast Asia Regional Program: hlm 117

Wheater, H., Evans, E. 2009. Land use, water management and future flood risk. Land Use Policy 26, 251264.

Qi, H., Altinakar, M.S. 2011. A conceptual framework of agricultural land use planning with BMP for integrated watershed management. J. Environ. Manag. 92, 149155.

Zampella, R.A., Procopio, N.A., Lathrop, R.G., Dow, C.L. 2007. Relationship of land-use/ land-cover patterns and surface-water quality in the Mullica River Basin. J. Am. Water Resour. Assoc. 43, 594604.

Zhang, X., Zhang, L., Zhao, J., Rustomji, P., Hairsine, P. 2008. Responses of streamflow to changes in climate and land use/cover in the Loess Plateau, China. Water Resour. Res. 44.




DOI: https://doi.org/10.32679/jth.v7i1.554

Refbacks

  • There are currently no refbacks.


Copyright (c) 2018 JURNAL TEKNIK HIDRAULIK

Indexed by:
   Sinta Science and Technology IndexCrossref logo 
 
       
 
 
 
Sekretariat:
 
Direktorat Bina Teknik Sumber Daya Air, Direktorat Jenderal Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat