Abstract
The development and use of a program that combines genetic algorithms and the least median of squares (LMS) method is reported. The combination of these two methods should provide a very robust approach for optimising non-linear functions. The program was specifically developed to estimate soil bulk density using a mass fraction model and was tested against a simulated dataset before being applied to the prediction of bulk density from a dataset created by combining measurements from a number of studies. The prediction of bulk density has a very important role in the calculation of soil elemental pools,, and the predictive ability provided by the models described can be used to improve estimates of the key parameters such as soil carbon storage. (c) 2006 Elsevier Ltd. All rights reserved.
Original language | English |
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Pages (from-to) | 1503-1507 |
Number of pages | 5 |
Journal | Environmental modelling & software |
Volume | 21 |
Issue number | 10 |
DOIs | |
Publication status | Published - Oct 2006 |
Keywords
- genetic algorithms
- least median squares
- bulk density
- loss on ignition
- soil
- BULK-DENSITY
- SQUARES REGRESSION
- FOREST SOILS
- MATTER
- MODELS
- CARBON