ANALYSIS OF SUSTAINABLE WATER RESOURCES MANAGEMENT BASED ON THE POTENTIAL WATER AVAILABILITY IN THE SEMI-ARID AREA OF KUPANG, INDONESIA

Marlin A Koan, Jakobis Johanis Messakh, Soetedjo IN P

Abstract


Aims: This study discusses water resources management based on water discharge potential of the Oebobo-Liliba watershed in Kupang City, East Nusa Tenggara, Indonesia. Methodology and Results: River water discharge was analyzed based on hydrological data of a span of 10-years. Average rainfall was calculated using the arithmetic mean method, and potential evapotranspiration (ETo) was calculated through Penman Modification with CROPWAT 8.0. The discharge analysis was conducted through a Mock method. Change in land cover was rendered using related land maps from year 2008 and 2018. Management of agricultural land was discussed through a descriptive analysis. The results showed an average monthly discharge of 0.667 m3/sec. The need for clean water is rendered to be 170 liters/person/day, and the discharge requirement of 90% = 281 liters/sec is concluded to be able to meet the community's clean water needs which amounts to 142,569 people. The total area of paddy fields is 5.38 Ha with water requirements of 1.5 liter/sec/ha, where 80% or 348 Liter/sec can be used to irrigate 232 hectares of paddy. Further results show that land cover in dryland forests decreased from 15% to 10%, settlements increased from 20% to 49%, and shrubs diminished from 20% to 0%. Conclusion, significance and impact study: The minimum debit trend shows a declining trend, while the maximum discharge trend shows an inclining trend. This research concludes that water discharge is adequate to meet community needs yet requires proper water resources management strategy from upstream to downstream of the watershed.


Keywords


Oebobo-liliba watershed; Water source; Water supply potential; Dryland forest: Potential evapotranspiration

Full Text:

PDF

Article Metrics

Abstract views : 0| PDF views : 0

References


Adoe, T., H., R. Control of Underground Water Utilization, Thesis at Diponegoro University, Semarang, 2008

Arsyad, K., M. 2017. Hydrology Module, Water Needs and Availability. Center for Water Resources and Construction Education and Training. Ministry of Public Works and Public Housing Human Resources Development Agency.

Devianti. 2018. Study of Surface Runoff and Erosion Rate Levels Based on Agricultural Crop Management Agroforestry Systems in the Cianten-Cipancar watershed, West Java Province, Indonesia. Jtep Journal of Agricultural Engineering. 6(1): 109-116, P-ISSN 2407-0475, E-ISSN 2338-8439.

Harisuseno, D., and Bisri, M. Spatial Runoff. UB Press. Poor, 2017.

Messakh, J., J., Arwin, S., Hadihardaja, I., K., & Chalik, A., A. 2015. A Study on Fulfilling Drinking Water Needs for Communities in the Semi-Arid Region of Indonesia (A study on fulfillment of drinking water needs of people in semi-arid areas in Indonesia). Journal of Humans and the Environment. 22(3): 271-280.

Messakh, J., J., Arwin, S., Hadihardaja, I., K., & Dupe, Z. 2015. Management Strategy of Water Resources base on Rainfall Characteristics in the Semi-arid Region in Indonesia. International Journal of Scientific and Engineering Research (IJSER). 8(6): 331-338.

Messakh, J., J., Moy, D., L., Mojo, D., & Maliti, Y. 2018. The Linkage between Household Water Consumption and Rainfall in the Semi-arid Region of East Nusa Tenggara, Indonesia. IOP Conference Series: Earth and Environmental Science. 106: 12084, IOP Publishing.

Mulyana, E. 2014. The Effect of Wind on Growth of Rain Clouds in the Long Panjang Hydroelectric Reservoir. Journal of Science & Technology Weather Modification. 15(2): 81- 88. Kupang City Regional Regulation Number 11 of 2011.

Purwanto, Y., J., and Susanto, A. 2014. Introduction Module for Water Resources Management. http://repository.ut.ac.id/4313/1/PWKL4221-M1.pdf. [9 May 2019].

Rambang, Haritson, B., and Silitonga, Yosua E. Planning for the Secondary Irrigation Network of the Lebak Semendawai Irrigation Region in the East Oku Regency, South Sumatra Province. Thesis, Sriwijaya State Polytechnic, 2015.

Sandhyavitri. 2015. Analysis of the Effects of Changes in Land Use on Water Availability in the Siak River Basin, Riau Province. Journal of Civil Engineering. 13(2): 146-157, April 2015.

Sari, Limantara, Priyantoro. 2011. Analysis of Water Availability and Needs in the Sampean Watershed. Brawijaya University Journal.

Sasminto, Retno Ayu, et al., 2014. Spatial Analysis of Climate Determination according to the Schmidt-Ferguson and Oldeman Classification in Ponorogo Regency. Journal of Natural Resources and the Environment. 1(1): 51-56.

Satriyom P. Carrying Capacity Analysis Based on Water Footprint for the Management of the

Krueng Aceh Watershed. Dissertation of Bogor Agricultural Institute Graduate School, 2018.

Suprapto, M. 2012. The Concept of Sustainable Water Resource Management. Journal of Civil

Engineering. 12(1): 61-65, October 2012.




DOI: http://dx.doi.org/10.25105/urbanenvirotech.v4i1.8003

Refbacks

  • There are currently no refbacks.




Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

width="60"    width="60"    width="60"    width="60"    width="60"        width="60"    width="60"    width="60"    width="60"                    

Copyright of Indonesian Journal of Urban and Environmental Technology

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)

     Creative Commons License