kajian karakteristik das tuntang dan model pengelolaan das terpadu _ sriyana _ teknik
DESCRIPTION
hTRANSCRIPT
-
5/10/2014 KAJIAN KARAKTERISTIK DAS TUNTANG DAN MODEL PENGELOLAAN DAS TERPADU | Sriyana | TEKNIK
http://ejournal.undip.ac.id/index.php/teknik/article/view/1742 1/1
USER
Username
Password
Remember me
Log In
ABO UT T HE AUT HO R
Sriyana Sriyana
Indonesia
AR T I C LE T O O LS
Print this article
Indexing
metadata
How to cite item
Review policy
Email this article
(Login required)
Email the author
(Login required)
NO T I FI C AT I O NS
ViewSubscribe /Unsubscribe
JO UR NAL C O NT ENT
Search
All
Search
Browse
By IssueBy AuthorBy TitleOther Journals
I NFO R MAT I O N
For ReadersFor AuthorsFor Librarians
FO NT SI ZE
Journal Help
HOME ABOUT LOG IN REGISTER SEARCH CURRENT ARCHIVESANNOUNCEMENTS AIMS AND SCOPE EDITORIAL BOARD AUTHOR GUIDELINESPUBLICATION ETHICS INDEXING & ABSTRACTING GOOGLE SCHOLAR PROFILE
Home > Volume 32, Nomor 3, Tahun 2011 > Sriyana
KAJIAN KARAKTERISTIK DAS TUNTANG DANMODEL PENGELOLAAN DAS TERPADU
Sriyana Sriyana
Abstract
A low carrying capacity of drainage basin or watershed may cause several problems, where floods occurinrainy season and droughts occur in dry season, also the occurrence of erosion, sedimentation and so on,hasbeen governments problem in watershed management all along. In order to anticipate thiscondition,characteristic data of a watershed are required, so that it can be used as basic reference ofwatershedmanagement.The purpose of this paper is to conduct a study on the characteristics of Tuntangwatershed of Central JavaProvince and watershed management model.The method of approach uses aspectsof watershed geomorphology such as the shape of watershed, elongationratio and circularity ratio approaches,order of river using Strahle method, watershed density using Lynsleyformula, and river gradient calculatedbased on the comparison between elevation difference and length of mainrivers.Results show that magnitudeindex of Tuntang Sub watershed has elongated shape with Rc value between 0.27 to0.46, which means that thelonger concentration time needed, the lower flood fluctuation. And relatively roundedshape with Rc valuebetween 0.57 to 1.00, which means that the shorter concentration time needed, the higherflood fluctuationoccurs. Sub watershed order range from 4 to 6 order, which means that river basins have floodwater levelincrease (moderately quick to fast), likewise water level decrease. Level slope between 0 - 8 % (lowflowvelocity) with an area of 117605.56 Ha, and very steep slope > 40 % (very high flow velocity) with an areaof4219.09 Ha. The highest drainage density occurs in Sub watershed of Tuntang downstream 1.88 Km / Km,andlowest Sub watershed of Blorong 1.01 Km / Km. Based on both magnitudes, the water being stored isinmedium category and floods and droughts occur. The flow pattern has the shape of rectangular dendriticanddendritic medium, showing that soil characteristics is limestone and shale. To obtain optimal performanceresultof Tuntang watershed, integrated watershed management program is needed in watershedmanagementintegration by involving various associated parties.
Graphical Abstract
Keywords
Characteristics, Watershed of Tuntang, Integrated Management.
Fulltext
Full Text: PDF
RefbacksThere are currently no refbacks.
Jurnal TEKNIK (ISSN: 1978-1697), Fakultas Teknik, Universitas DiponegoroJln. Prof. Soedarto, SH, Kampus Undip Tembalang, Semarang, Jawa Tengah 50275; Telp.(024)7460056, Fax: (024)7460055E-mail: [email protected] My Stats