Open AccessValidation of land management information system model (SILAHAN) on plot scale, case study in Citaman, Nagreg, West Java
Author(s) -
Ratri Ariani,
Achmad Rachman,
Ai Dariah,
Rahmah Dewi Yustika,
Setiari Marwanto
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/393/1/012078
Subject(s) - surface runoff , environmental science , runoff curve number , scale (ratio) , hydrology (agriculture) , erosion , land management , hazard , plot (graphics) , land use , statistics , mathematics , geography , cartography , geology , civil engineering , ecology , paleontology , chemistry , geotechnical engineering , organic chemistry , engineering , biology
Upland has potential uses for agriculture practices in indonesia. However there are some problems to manage, one of them is many existing upland in sloping areas and high risk to erosion and runoff. Indonesian Soil Research Institute developed a recommendation model for the land management information system (SILAHAN) based on the study of criteria for soil conservation indicators with calculation of erosion hazard index and surface runoff. The aim of this study was to validation SILAHAN prediction models from surface runoff aspects on a plot scale as the basis for formulating recommendations for the most complex land management technology. Validation of the prediction results of surface runoff in SILAHAN model is done by comparing surface runoff results of real measurements in field with the results of predicted by SILAHAN with three simulation. The results of statistical tests with r pearson correlation coefficient is 0,31, 0,31, and 0,32, PBias is -90,6, -86,6 and -83,5, and NSE is -0,76, -0,68, and -0,63. The results of the prediction of plot scale surface runoff in the SILAHAN model were not same as the measurements result on the field observations. it is suggested to determine the correction factors and development capabilities of the SILAHAN model to assess the effectiveness of a land management system in reducing the amount of surface runoff.