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VNIR Spectroscopy for rapid characterization of salt affected soil in the Indo-Gangetic plains of Haryana, India.

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Title VNIR Spectroscopy for rapid characterization of salt affected soil in the Indo-Gangetic plains of Haryana, India.
Not Available
 
Creator R. Srivastava,
M. Sethi,
RK Yadav,
DS Bundela, --, AK Barthwal
 
Subject Hyperspectral remote sensing .
Partial least square regression model .
Rice-wheat cropping zone .
Salt-affected soils .
Indo-Gangetic plains
 
Description Not Available
Management of salt-affected soils is a challenging
task in the input intensive rice-wheat cropping zone of the
Indo-Gangetic plains (IGP). Timely detection of salt-affected
areas and assessment of the degree of severity are vital in order
to narrow down the potential gap in yield. Conventional laboratory
techniques of saturation extract electrical conductivity
(ECe) and sodium adsorption ration (SAR) for soil salinity
assessment are time-consuming and labour intensive; the
VNIR (visible-near infrared) reflectance spectroscopy technique
provides ample information on salinity and its attributes
in an efficient and cost-effective way. This study aims to develop
robust soil reflectance spectral models for rapid assessment
of soil salinity in the salt affected areas of the IGP region
of Haryana using VNIR reflectance spectroscopy. The results
indicated that the spectral region between 1390 and 2400 nm
was highly sensitive to measure changes in salinity. The developed
hyperspectral models explained more than 80 % variability
in ECe, and other salinity related attributes (saturated
extract Na+, Ca2+ + Mg2+, Cl− and SAR) in the validation
datasets. With the increasing availability of data from
hyperspectral sensors in near future, the study will be very
useful in real time monitoring of soils in the spatio-temporal
context; enabling the farmers of IGP area to deal with salt
degradation more effectively and efficiently.
Not Available
 
Date 2019-11-29T10:13:06Z
2019-11-29T10:13:06Z
2016-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/25887
 
Language English
 
Relation Not Available;
 
Publisher Not Available