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Developing a Soil Quality Index for Ravinous Ustifluvents of the Semi-Arid Region of India

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Title Developing a Soil Quality Index for Ravinous Ustifluvents of the Semi-Arid Region of India
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Creator Pramod Jha
K.P. Mohapatra
 
Subject Land degradation, principal component analysis, soil quality index, semi-arid region
 
Description Not Available
Understanding impacts and processes involved induced by changes in land use pattern is a key issue for
management policies which helps in formulation of land restoration and reclamation strategies. A study was
conducted at ravinous landform of the Ustifluvents of the Yamuna region to select the most sensitive soil
quality indicators, which may reflect on the state of soil condition. Three different land use systems (forest,
agriculture and uncultivated ravinous wasteland-reference land) were selected for the study. In forest land
use the most prevalent species (Jatropha curcas, Leucaena leucocephala, Acacia nilotica, Azadirachta
indica and Prosopis juliflora) of the semi-arid regions were selected. An uncultivated ravinous wasteland
located adjacent to agriculture and forest land uses was selected as reference site for comparison. The entire
data of soil properties under different land use systems were subjected to principal component analysis
(PCA) for identification of sensitive indicators. Correlation analyses amongst the highly weighed variables
were done to remove the redundant parameters. In order to develop the soil quality index and assess the
relative degradation status of different land uses, the sensitive indicators were normalized to 0-1 scale by
different scoring functions and finally an index was developed by using an additive model. The sensitive
indicators (minimum dataset) under the ravinous Ustifluvent in descending order of importance as revealed
by factor analysis were as follows: exchangeable Na > available N > sand content > active carbon > available
K > available P. The soil quality index developed for the site could be used as a decision making tool for
formulation of policies leading to land restoration and reclamation of ravinous wasteland of the semi-arid
region of India.
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Date 2020-02-25T11:06:04Z
2020-02-25T11:06:04Z
2012-01-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/33083
 
Language English
 
Relation Not Available;
 
Publisher Not Available