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Status of desertification in South India- Assessment, Mapping and Change detection analysis

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Title Status of desertification in South India- Assessment, Mapping and Change detection analysis
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Creator S. Dharumarajan., Lalitha, M., Rajendra Hegde, Janani, N., Rajavat, A.S., Sastry, K.L.N., Singh, S.K
 
Subject Change detection analysis, desertification, salinization, vegetal degradation, waterlogging.
 
Description Not Available
Desertification is the transformation of productive
land into a non-productive one due to poor resource
management, and unfavourable biophysical and economical
factors. Periodical assessment of desertification
status is imperative for a suitable comprehensive
and combating plan. In the present study, desertification
status maps of Andhra Pradesh (AP), Karnataka
and Telangana in South India have been prepared
using remote sensing data for two time-frames (2003–
2005 and 2011–2013) and change detection analysis
has been carried out. The results reveal that 14.35%,
36.24% and 31.40% of the total geographical area in
Andhra Pradesh, Karnataka and Telangana were
affected by desertification processes respectively, in
2011–2013. Among the desertification processes,
vegetal degradation contributes 7.27% of total area in
AP, followed by water erosion (4.93%) and waterlogging
(0.83%), whereas in Karnataka water erosion
(26.29%) is dominant followed by vegetal degradation
(8.93%) and salinization (0.45%). Change detection
analysis shows that desertification processes of AP
and Karnataka have increased by 0.19% and 0.05%
respectively, whereas in Telangana it has decreased by
about 0.52% from 2003 to 2005 data. The present
database will help the scientists, planners and stakeholders
to prepare appropriate land reclamation
measures to control the increasing trend of desertification.
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Date 2020-05-22T07:27:33Z
2020-05-22T07:27:33Z
2018-01-01
 
Type Research Paper
 
Identifier S. Dharumarajan., Lalitha, M., Rajendra Hegde, Janani, N., Rajavat, A.S., Sastry, K.L.N., Singh, S.K., 2018. Status of desertification in South India- Assessment, Mapping and Change detection analysis. Current Science, 115: 331-338. doi: 10.18520/cs/v115/i2/331-338
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http://krishi.icar.gov.in/jspui/handle/123456789/36132
 
Language English
 
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Publisher Not Available