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Diagnosis and prognosis of salt-affected soils and poor-quality waters using remote sensing and proximal techniques

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Title Diagnosis and prognosis of salt-affected soils and poor-quality waters using remote sensing and proximal techniques
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Creator Madhurama Sethi, D.S. Bundela, and Rajkumar
 
Subject Remote sensing and GIS, Proximal sensing, Diagnosis, prognosis, salt-affected soils, poor-quality waters, saline soils,
 
Description Not Available
Salinisation of soil and water resources has emerged as a major environmental
predicament adversely impacting sustainability of agriculture and
crop productivity in arid and semiarid regions. Diagnosis and prognosis of
salinity is a challenging task due to extreme variability in space and time
necessitating the application and use of smart modern tools and techniques
for providing information on extent and spatial distribution of saltaffected
land and water. Satellite remote sensing has been successfully
used to diagnose and map moderate to heavy salt encrustation on bare
soils and directly or indirectly through crop/vegetation growth patterns.
Attempts have been made to resolve light-surface salt encrustation with
crop cover and root-zone salinity as well as deeper groundwater
salinisation using airborne remote sensing and proximal sensing-based
geophysical tools. An integrated methodology combining proximal and
remote-sensing data has provided the best solution for diagnosing various
levels of salinisation of land and water. More recently data from aerial
photographs, UAVs, airborne electromagnetic survey, satellite-based
multispectral, hyperspectral and microwave, ground-penetrating radar
and electromagnetic induction and geo-electrical resistivity devices
along with improved data processing techniques in GIS have enhanced
the capability for accurate identification and diagnosis of salty land and
water. Nonetheless ground truth and laboratory analysis remain essentially
and integrally important to achieve accuracy in providing a prognosis
for management for sustainability of agricultural land and
groundwater.
Not Available
 
Date 2018-11-14T04:10:49Z
2018-11-14T04:10:49Z
2016-08-10
 
Type Book chapter
 
Identifier Madhurama Sethi, D.S. Bundela, and Rajkumar (2016). Diagnosis and prognosis of salt-affected soils and poor-quality waters using remote sensing and proximal techniques. In: Dagar, J.C., Sharma, P.C., Sharma, D.K., and Singh, A.K. (Eds.). Innovative Saline Agriculture. Springer India, 55-82
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http://krishi.icar.gov.in/jspui/handle/123456789/10980
 
Language English
 
Relation Not Available;
 
Publisher Springer India