Soil Quality Assessment Through Minimum Data Set Under Are canut Land Use System Hilly Zone of Karnataka, India
Journal Title: International Journal of Environment, Ecology, Family and Urban Studies (IJEEFUS) - Year 2019, Vol 9, Issue 1
Abstract
With the intensification of agricultural practices to get enhanced returns, there is a new emphasis on using the concept of soil quality. Quantitative assessment of soil quality is done to determine the sustainability of land uses in terms of environmental quality and plant productivity. Arecanut is one of the important commercial crop grown in Shivamogga and Chikkamagaluru areas that falls under hilly zone (Zone-9) of the agro-climatic zone of Karnataka. Twenty-four different physical, chemical, and biological soil attributes were measured for surface soil samples (0-30 cm) in 225 representative samples from different locations of Arecanut growing plantations of Shivamoga and Chikmagaluru districts of Karnataka. The study was conducted to address the selection of most appropriate soil quality indicators and to quantify the soil quality index (SQI) under arecanut land use system in Shivamogga and Chikkamagaluru districts of Karnataka. Principal component analysis (PCA) approach was followed to get the minimum data set on the measured attributes. The data obtained which was subjected to PCA provided seven principal components (PCs) with eigen-values >1 and explaining at least 5 per cent of the variance in the data set. The seven PCs together explained 85.52 per cent of the total variance. Based on the rotated factor loadings of soil attributes, the selected minimum data set were soil organic carbon (SOC) from PC-1, maximum water holding capacity from PC-2, available potassium (K2O) from PC-3, exchangeable Mg (Mg) from PC-4, sand from PC-5, available boron (B) from PC-6 and earthworm population density (EWPD) from PC-7. Indicators were transformed into scores (linear scoring method) using standard procedures to calculate the SQI. The obtained SQI for Shivamogga was 0.41 and for Chikkamagaluru was 0.43 under arecanut land use system of the hilly zone of Karnataka. The overall contribution (in per cent) in the determination of SQI was in the order of SOC (40.10), MWHC (10.40), K2O (10.10), Mg (11.19), sand (15.61), B (6.73) and EWPD (5.94).
Authors and Affiliations
Niranjana. K. S, Yogendra. K, Mahadevan. K. M
Keywords
Related Articles
- EP ID EP463085
- DOI 10.24247/ijeefusfeb20194
- Views 114
- Downloads 0
Analysis of Pysico Chemical Parameters in NeyyarRiver with Special Reference toEnvironmental Pollution
Neyyar is the southern most river of Kerala state. This river having a length of 56 Km is now facing serious environmental fall out due to various anthropogenic activities. This paper reveals the seasonal fluctuations in...
Performance Evaluation of Water Treatment Plant at Bhokarpada Navi Mumbai: Case Study
The objectives of any water supply system are to supply safe whole some water in adequate quantity at convenient points and at reasonable cost to the users. Potable water treatment is one of the most challenging and comp...
Livestock Rearing Patterns in the Fringe Villages of Kaziranga National Park
A research was undertaken to study the livestock rearing patterns amid fringe villages in 4 selected forest range areas of Kaziranga National Park, namely Agoratoli range, Kohora range, Bagori range and Burapahar (Ghurak...
AETIOLOGY OF MILD AND SERIOUS INTELLECTUAL DISABILITIES/MR WITHOUT ANY IDENTIFIED GENETIC CAUSE
The present study was designed to find etiology of non-genetic ID/MR and evaluated the contribution of demographic, prenatal, perinatal and neonatal factors to the prevalence of intellectual disability among individuals...
An Evaluation of Maternal Health Care Services in Primary Healthcare Centers (PHC) in Thanjavur District, Tamil Nadu
This study covers the services of Primary Healthcare Centers in Thanjavur District. It examines the visitors' view of how they utilized these PHC Services. The study concentrates on How PHC helps to the rural population....