Improving Fodder Biomass Modeling in The Sahelian Zone of Niger Using the Multiple Linear Regression Method
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 5
Abstract
This study was carried out in Niger and aims to propose an improved fodder biomass estimate model using the Multiple Linear Regression (MRM) method. The work was carried out with measurements of herbaceous mass (in situ) made from 2001 to 2012 by the Ministry of Livestock and Animal Industry of Niger (MEIA); rainfalls observed by the Niger Meteorological Office and the meteorological variables from the European Center for Medium-Range Weather Forecasts (ECMWF), processed in AgrometShell (AMS) to derive the agro-meteorological variables; the SPOT VEGETATION NDVI satellite images processed in the "Vegetation Analysis in Space and Time" (VAST) program to derive biophysical variables from the annual NDVI decadal series and finally the estimated rainfall known as RFE from the American institution "Famine Early Warning Systems Network "(FEWSNET) for the calculation of annual rainfall totals. The model was performed by multiple linear regressions with the ascending step-by-step procedure for the selection of variables based on the adjusted R² and the RMSE. Leave One Out Cross Validation (LOOICV) was used to calculate the validation R² and a systematic diagnosis of residues to better characterize the model. Throughout the (national) study area, MRM performed an adjusted R² of 0.68 and a RMSE of 282 kg. Ha-1, the difference between the RMSE of the calibration and that of the validation is 3.72 kg.ha-1. However, it is necessary to continue this research with other indices such as LAI and FAPAR and EVI. Also, it would be interesting to explore ways such as: taking into account the foliage of the trees, adjusting the metrics to the phenology of the herbaceous plants, and those of the woody ones. This work will improve the quality of information used to plan development actions in favor of Niger society in order to protect it against pastoral crises.
Authors and Affiliations
Issa Garba, Bakary Djaby, Illa Salifou, Ibra Toure, Abdallah Samba, Yapi Yapo, Alio Agoumo, Salamatou Soumana
Keywords
Related Articles
- EP ID EP24289
- DOI -
- Views 294
- Downloads 9
Implementation Of Real Time Health Monitoring System Using Zigbee For Military Soldiers
This project is created mainly for monitoring of military soldiers during war situations, so that their health conditions are updated and timely diagnosis can be provided. Two important parameters for a soldier to survi...
Fault Detection and Autoline Distribution System with GSM Module
Transmission lines is the important factor of the power system. Transmission and distribution lines has good contribution in the generating unit and consumers to obtain the continuity of electric supply. To economically...
Vibration Monitoring Of Fixed Bearing
On Bearing Vibration (OBV) together with the contact type accelerometer has been used for the Vibration Based Condition Monitoring (VCM) and the method has been applied to a small experimental rig. The observation made...
ARB Life Improvement By Improvement in the Current Shot Peening Method
The ARB is widely used in automobiles and one of the major components of suspension system. It needs to have higher fatigue life. The ARB regarded as a safety component as its failure will lead to severe accidents and t...
Design and Implementation of an Ultra-Low Power High Speed CMOS Logic using Cadence
DMTGDI is introduced an ultra-low power, high speed dual mode cmos logic family. It mainly improves characteristics of gate diffusion sub-threshold circuit design. A dmtgdi of type a and type b design was implemented in...