Journal of Biosystems Engineering
- 제26권5호
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- Pages.475-480
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- 2001
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- 1738-1266(pISSN)
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- 2234-1862(eISSN)
근적외선 반사도를 이용한 토양 유기물 함량 측정
Measurement of Soil Organic Matter Using Near Infra-Red Reflectance
초록
Sensing soil organic matter is crucial for precision farming and environment friendly agriculture. Near infra-red(NIR) was utilized to measure the soil organic matter. Multivariate calibration methods, including stepwise multiple linear regression(MLR), principal components recession(PCR) and partial least squares regression(PLS), were applied to soil spectral reflectance data to predict the organic matter content. The effect of soil particle size and water content was studied. The range of soil organic matter contents was from 0.5 to 11%. Near infrared (NIR) region from 700 to 2,500nm was applied. For uniform soil particle size, result had good correlation (R