Record Details

Land use and agricultural change dynamics in SAT watersheds of southern India

OAR@ICRISAT

View Archive Info
 
 
Field Value
 
Relation http://oar.icrisat.org/9488/
http://dx.doi.org/10.18520/cs/v110/i9/1704-1709
10.18520/cs/v110/i9/1704-1709
 
Title Land use and agricultural change dynamics in SAT watersheds of southern India
 
Creator Ahmed, M I
Gumma, M K
Shalander, K
Craufurd, P
Rafi, I M
Haileslassie, A
 
Subject Soil Science
 
Description Impact of dynamic land use and land cover changes
on the livelihood of local communities and ecosystem
services is a major concern. This is particularly
evident in most dryland agricultural systems in South
Asia. We study land use/land cover (LULC) changes
over the last two decades in a watershed (9589 ha)
located in semi-arid eco-region in South India (Anantapuram
district) using Landsat and IRS imagery. We
captured additional data through field observations
and focused group discussions. The high resolution
30 m data and the spectral matching techniques
(SMTs) provided accuracy of 91–100% for various
land use classes and 80–95% for the rice and groundnut
areas. The watershed studied has undergone significant
land use changes between 1988 and 2012.
Diminishing size and number of surface water bodies,
and contrastingly increased areas under irrigation
clearly explain that the system has evolved significantly
towards groundwater-irrigated groundnut production.
Such changes could be beneficial in the short
run, but if the groundwater withdrawal is without sufficient
recharge, the long-term consequences on livelihoods
could be negative. The water scarcity could be
aggravated under the climate change. The construction
of checkdams and dugout ponds to recharge
groundwater is a potential solution to enhance recharge.
 
Publisher Indian Academy of Sciences
 
Date 2016-05-10
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/9488/1/02_LU%20changes%20in%20SAT%20watersheds.pdf
Ahmed, M I and Gumma, M K and Shalander, K and Craufurd, P and Rafi, I M and Haileslassie, A (2016) Land use and agricultural change dynamics in SAT watersheds of southern India. Current Science, 110 (09). pp. 1704-1709. ISSN 00113891