Comparison of different interpolation techniques in determining of agricultural soil index on land consolidation projects

Authors : Mevlüt UYAN

Pages : 28-35

Doi:10.26833/ijeg.422570

View : 6 | Download : 7

Publication Date : 2019-02-01

Article Type : Research Paper

Abstract :Land consolidation insert ignore into journalissuearticles values(LC); is a tool to improve the processing efficiency of agricultural area and the promotion of rural development same time an indispensable application for the promotion of sustainable agriculture. In order to achieve the reallocation process after LC, determining the correct of soil index insert ignore into journalissuearticles values(SI); for each of the agricultural parcels is very important for the success of LC projects. Nowadays, interpolation methods are extensively applied in the mapping processes to estimate the SI at unsampled sites. The objective of this study was to evaluate and compare the performance of three interpolation methods for the agricultural SI values maps with GIS technology for LC projects. The SI data were determined from 132 observation points. Three spatial interpolation methods Ordinary Kriging insert ignore into journalissuearticles values(OK);, Inverse Distance Weighted insert ignore into journalissuearticles values(IDW);, and Radial Basis Functions insert ignore into journalissuearticles values(RBFs); were utilized for modeling the agricultural SI values. The results indicated that all methods provided a high prediction accuracy of the mean concentration of SI. In this study, although the best performed interpolation method was the OK, the results showed that the performance differed slightly among three methods. Results show that all the methods present a good performance in the estimation with RMSE insert ignore into journalissuearticles values(root mean square error); and ME insert ignore into journalissuearticles values(mean error); close to 0%.
Keywords : Land consolidation LC, , Soil index SI, , Ordinary Kriging OK, , Inverse Distance weighting insert ignore into journa