Multimodeling Approach to Assess the Impact of Climate Change on Water Availability and Rice Productivity: A Case Study in Cauvery River Basin, Tamil Nadu, India

Author(s):  
V. Geethalakshmi ◽  
K. Bhuvaneswari ◽  
A. Lakshmanan ◽  
Nagothu Udaya Sekhar ◽  
Sonali Mcdermid ◽  
...  
2015 ◽  
Vol 2015 ◽  
pp. 1-13 ◽  
Author(s):  
Chenchen Shi ◽  
Jinyan Zhan ◽  
Yongwei Yuan ◽  
Feng Wu ◽  
Zhihui Li

Ecosystem services are the benefit human populations derive directly and indirectly from the natural environment. They suffer from both the human intervention, like land use zoning change, and natural intervention, like the climate change. Under the background of climate change, regulation services of ecosystem could be strengthened under proper land use zoning policy to mitigate the climate change. In this paper, a case study was conducted in the middle reaches of the Heihe River Basin to assess the ecosystem services conservation zoning under the change of land use associated with climate variations. The research results show the spatial impact of land use zoning on ecosystem services in the study area which are significant reference for the spatial optimization of land use zoning in preserving the key ecosystem services to mitigate the climate change. The research contributes to the growing literature in finely characterizing the ecosystem services zones altered by land use change to alleviate the impact of climate change, as there is no such systematic ecosystem zoning method before.


Water Policy ◽  
2009 ◽  
Vol 11 (2) ◽  
pp. 141-167 ◽  
Author(s):  
Nilanjan Ghosh ◽  
Jayanta Bandyopadhyay

The paper is an attempt to interpret trans-boundary water disputes with the help of scarcity value, which is the value that could have been generated if the limit on water availability could be relaxed by one unit. Scarcity value measures the degree of deprivation and creates the basis for disputes. This hypothesis has been applied in this paper to the disputes over water use for irrigation in the Cauvery basin between the states of Karnataka and Tamil Nadu in South India. On the basis of the historical data for the area under paddy cultivation in the two states, the paper shows that such disputes are not clearly based on physical scarcity of water but are a temporal coincidence of demand based on scarcity value. This means that enhanced supply would not be the correct approach to the resolution of disputes. New economic instruments based on scarcity value may provide a more objective picture of the disputes and hence help in their amicable resolution.


2013 ◽  
Vol 263 ◽  
pp. 224-232 ◽  
Author(s):  
Montse Marquès ◽  
Rubab Fatima Bangash ◽  
Vikas Kumar ◽  
Richard Sharp ◽  
Marta Schuhmacher

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