Health evaluation of Kedangpahu watershed in relation to flood problem at Kutai Barat Regency

Paper Details

Research Paper 01/09/2018
Views (407) Download (10)
current_issue_feature_image
publication_file

Health evaluation of Kedangpahu watershed in relation to flood problem at Kutai Barat Regency

Suparjo, Muhammad Sumaryono, Marjenah, Sigit Hardwinarto
J. Bio. Env. Sci.13( 3), 48-55, September 2018.
Certificate: JBES 2018 [Generate Certificate]

Abstract

Increasing occurrence of flood is one of the watershed degradation indicators. Since the causes of watershed degradation identified, restoration was one of the ways to return the balance of watershed ecosystem. Before it’s held, the first step that must be done was identifying watershed characteristics and health evaluation. Kedangpahu watershed is located in Kutai Barat Regency, East Kalimantan, covering 698.952 hectares area. The problems of this watershed were the increasing of flood frequency and its duration. The aim of the research was to justify Kedangpahu watershed health status. Method of study was using Geographic Information System (GIS). The first step of the study was identifying its bio-physic elements. The study showed that 63.19 % of total area had slightly slope. Average annual precipitation is between 826.9 – 3886,6 mm/year. High precipitation occurs on December, January, April and May. The water regime index, 2.34, is classified as in moderate category, meanwhile the average annual discharge tends to increase year by year. The dissolved sediment concentration is 31.75 mg/l. Some land cover areas were converted to palm oil plantation and mining. Based on land use planning map, 53 % of total areas are located at conversion area, in Indonesia called Areal Penggunaan Lain (APL). It can be concluded that Kedangpahu watershed health status is in moderate category.

VIEWS 25

Al-Bakri JT, Salahat M, Suleiman A, Suifan M, Hamdan MR, Khresat S, Kandakji T.2013. Impact of Climate and Land Use Changes On Water and Food Security in Jordan: Implications for Transcending The Tragedy of The Commons. Journal of Sustainability 2013, 724-748. http://dx.doi.org/10.3390/su5020724.

Asdak C.2007. Hydrology and Management of Watershed (4thed).  GadjahMada University Press. Yogyakarta.

DanoedoroP.1996. Digital Image Processing Theory and Application Remote Sensing. Geography Faculty  of Gadjahmada University, Yogyakarta.

Haileslassie A, HagosFitsum, Awulachew, SeleshiBekele, Peden D, Gebreselassie S, Negash F.2008. Indicators of environmental degradation in the Blue Nile Basin: exploring prospects for payment for environmental services. Paper presented at the Second Nile Development Forum, Khartoum, Sudan, 17-19 November 2008. 37p.

Hajam RA, Hamid A, Bhat S.2013. Application of Morphometrics Analysis for Geo-Hydrological Studies Using Geo-Spatial Technology- A Case Study of Vishav Drainage Basin. Journal of Hydrology Current Research 4,57. http://dx.doi.org/10:4172/2157-7587.1000157.

Hardwinarto S.2008. Analysis and Zoning of Flood Hazard Level In 3 Sub Watershed of Mahakam River. Unpublished Research Report. Kutai Barat.

Herawati T.2010. Spatial Analysis of Erosion Danger Level At Cisadane Watershed Area Bogor District. Journal of Forest Research and Natural Conservation7(4),413-4224, 20010. Bogor.

Koesnandar R, Hardwinarto S.2014.  Study On Land and Water Degradation of Sengata Watershed, East Kalimantan. Journal of Rimba Kalimantan Forestry Faculty of Mulawarman University 12(1).

Nachtergaele FO.2013. Land Degradation Assessment Indicators and the LADA Project. Journal Soil Conservation And Protection for Europe, 1-13.

Sarminingsih A. 2007. Evaluation of Land Critical of Watershed and Urgently Water Conservation Action. JurnalPresipitasi2(1), ISSN. 1907-187X.

Setyawan AD, Winarno K, Purnama PC.2004. Mangrove Ecosystem in Java: 2. Restoration. Journal of Biodiversitas5(2),105-118. ISSN: 1412-033X. July, 2004. http://dx.doi.org/10.13057/Biodiv/d050212

SeyhanE.1997. Fundamental of Hydrology (Indonesian Edition). Yogyakarta: Gadjah Mada University Press, Yogyakarta.

Sudarmadji T, Hartati W. 2016. The Process of Rehabilitation of Mined Forest Lands Toward Degraded Forest Ecosystem Recovery in Kalimantan, Indonesia. Journal of Biodiversitas17(1), April 2016. Page 185-191. http://dx.doi.org/10.13057/biodiv/d170127.

Supriyadi, 2014. Impact of  Watershed Restoration Base Agroforestry On Soil Quality in The Sub-Watershed Keduang, Wonogiri, Indonesia. Journal of Sustainable Development7(6),2014. ISSN. 1913-9063 E-ISSN 9013-9071.

Suryanto, 2007. The Carrying Capacity of Beringin Watershed Development. Unpublished student thesis, Postgraduate School of Diponegoro University.

Triatmodjo B. 2014. Applied Hydrology.  Yogyakarta: Beta Offset.

Tufaila, Karim, Alam, 2012. Spatial Analysis of Erosion in Moramo Watershed Using Geographic Information System (GIS). Agroteknos Journal, 2012. 2(3),134-142. ISSN.2087-7706.