agriTECH
Vol 17, No 4 (1997)

Penentuan Transmisivitas dan Porositas Efektif Untuk Mengkaji Proses Gerakan Airtanah Pada Lahan Heterogen

Mahmud Achmad (Teknologi Pertanian FPK Universitas Hasanuddin Ujungpandang)
Sigit Supadmo Arif (Fakultas Teknologi Pertanian, Universitas Gadjah Mada)



Article Info

Publish Date
22 Feb 2017

Abstract

The main purpose of this research is to determine properties of non-homogeneous ill-drained area which are reflected by transmissivity and effective porosity. The flow of water was analyzed using Darcy law and Boussinesq equations which were developed based on analogy theory of heat conduction to 2-Dimension (pseudo 3-D) of transient water flow. Based on the formula, transmissivity and effective porosity have been determined through mathematical model. The model needs daily deep water table as the main data. The model was tested in PG Jatitujuh Cirebon. The transmissivity and effective porosity information were very useful to solving drainage problems in the ill-drained area. Result of iteration method indicated that the land have 11 and S are 0,070 - 0,698 rnlm and 0,10 - 91,0 m2/day respectively. A R-square test was used to compare deep water table between observation data and output model each of bore hole, and was found average R-square is 0,8519 and standard of error is 0,0981.

Copyrights © 1997






Journal Info

Abbrev

agritech

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

Agritech with registered number ISSN 0216-0455 (print) and ISSN 2527-3825 (online) is a scientific journal that publishes the results of research in the field of food and agricultural product technology, agricultural and bio-system engineering, and agroindustrial technology. This journal is ...