Estimating Soil Organic Matter: A Case Study of Soil Physical Properties for Environment-Related Issues in Southeast Nigeria
| Autor: | K.I. Ofem, Kingsley John, Charles L. A. Asadu, Pascal Umeugokwe, Mark Pawlett, Michael Otu Eyong, Gare Ambrose-Igho, Chukwuebuka Edwin Awaogu, P. I. Ezeaku |
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| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Soil health Global and Planetary Change Soil test Soil organic matter Agriculture Geology Soil science Environment Environmental Science (miscellaneous) Bulk density Multivariate statistics Deposition (geology) Hydraulic conductivity chemistry Soil water Environmental science Humid tropics Economic Geology Organic matter Computers in Earth Sciences |
| Zdroj: | Earth Systems and Environment. 5:899-908 |
| ISSN: | 2509-9434 2509-9426 |
| Popis: | The different deposition periods in sedimentary geological environment have made the build-up and estimation of soil organic matter ambiguous to study. Soil organic matter has received global attention in the ambience of international policy regarding environmental health and safety. This research was to understand the inter-relationship between soil organic matter and bulk density, saturated hydraulic conductivity (Ksat), total, air-filled and capillary porosities for organic matter estimation, via different multiple linear regression functions (i.e., leapbackward, leap forward, leapseq and lmStepAIC), in soils developed over the sedimentary geological environment. Eight mapping units were obtained in Ishibori, Agoi Ibami and Mfamosing via digital elevation model. Two pits were sited within each mapping unit, and 53 soil samples were used for the study. In soils over shale–limestone–sandstone, two pits were sited, six in alluvium, four in sandstone–limestone and four in limestone. Overall correlation between SOM with Ksat (r = 0.626) and BD (r = − 0.588) was significant (p |
| Databáze: | OpenAIRE |
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