Calculating Soil Quality Index for Biomass Production Based on Soil Chemical Properties

초록

Soil quality has been regarded as an important factor for maintaining sustainability of ecosystem. Main purpose ofthis research was i) to select minimum factor for predicting biomass, and ii) to calculate soil quality index forbiomass according to soil chemical properties. Result showed that soil pH, electrical conductivity (EC), soilorganic matter (SOM), cation exchange capacity (CEC), and available phosphorus are minimum data set forcalculating biomass production in soil. Selected representative soil chemical properties were evaluated for soilquality index and rated from 1 to 5 (1 is the best for biomass production). Percentage of each grade in terms ofbiomass production in national wide was 14.52, 35.23, 33.03, 6.47, 10.75% respectively. Although, only soilchemical properties were evaluated for calculating optimum soil quality, result of this research can be useful tounderstand basic protocol of soil quality assessment in national wide.

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