Validation of land management information system model (SILAHAN) on plot scale, case study in Citaman, Nagreg, West Java. (December 2019)

• Record Type: Journal Article
• Authors: Ariani, R; Rachman, A; Dariah, A; Yustika, R D; Marwanto, S
• Is Part Of: IOP conference series. Volume 393(2019)
• Publication Date: 2019-12
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/393/1/012078
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: 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.