Principal Component Analysis Of Soil Physical And Chemical Properties Influencing Aggregate Stability Of Some Selected Ultisols
ABSTRACT
Evaluation of the main soil physical and chemical properties
which influence macro and micro aggregate stability of some top soils were
made. The top (0-20 cm) soil samples were collected from 10 different land use
types within MOUAU and its adjoining environs located in Ikwuano, Abia State.
Stability indices used in this study are mean weight diameter (MWD) for macro
and clay dispersion index (CDI) for micro aggregates. The evaluation method is
Principal Component Analysis (PCA). The component defining variables are those
properties with highest loadings on each component, providing the best
relationship between the variables and the aggregate stability indices. Results
indicate that Field Capacity (FC), Micro Porosity (Pmj) and saturated hydraulic
conductivity (Ksat) are the significant physical properties influencing CDI. Also,
FC, and Macro porosity significantly influence MWD. The significant chemical
properties influencing MWD are CEC, pH (H20), K and H while those influencing
CDI are Ca and CEC, pH (H20), K and H. These soil components significantly
influencing aggregate stability of the soils studied can be used to develop
empirical models for estimating the stability of soils in water.
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ANENE, C (2021). Principal Component Analysis Of Soil Physical And Chemical Properties Influencing Aggregate Stability Of Some Selected Ultisols. Repository.mouau.edu.ng: Retrieved Apr 25, 2024, from https://repository.mouau.edu.ng/work/view/principal-component-analysis-of-soil-physical-and-chemical-properties-influencing-aggregate-stability-of-some-selected-ultisols-7-2
CHINENYE, ANENE. "Principal Component Analysis Of Soil Physical And Chemical Properties Influencing Aggregate Stability Of Some Selected Ultisols" Repository.mouau.edu.ng. Repository.mouau.edu.ng, 14 Dec. 2021, https://repository.mouau.edu.ng/work/view/principal-component-analysis-of-soil-physical-and-chemical-properties-influencing-aggregate-stability-of-some-selected-ultisols-7-2. Accessed 25 Apr. 2024.
CHINENYE, ANENE. "Principal Component Analysis Of Soil Physical And Chemical Properties Influencing Aggregate Stability Of Some Selected Ultisols". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 14 Dec. 2021. Web. 25 Apr. 2024. < https://repository.mouau.edu.ng/work/view/principal-component-analysis-of-soil-physical-and-chemical-properties-influencing-aggregate-stability-of-some-selected-ultisols-7-2 >.
CHINENYE, ANENE. "Principal Component Analysis Of Soil Physical And Chemical Properties Influencing Aggregate Stability Of Some Selected Ultisols" Repository.mouau.edu.ng (2021). Accessed 25 Apr. 2024. https://repository.mouau.edu.ng/work/view/principal-component-analysis-of-soil-physical-and-chemical-properties-influencing-aggregate-stability-of-some-selected-ultisols-7-2