A hybrid model incorporating the econometric and programming models was developed to quantify the impact of climate change on agriculture in Godavari basin, India. The Just and Pope production function was used to estimate the mean yield of crops and the variance associated with the mean yield and using the estimated yield, the multiple goal programming model was used to optimize the land and water use under mid and end century climate change scenarios.
Water efficiency
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Technology
Tal-Ya is a new Israeli company that develops innovative water saving solutions for row-crop agriculture vineyards forestry and the municipal gardening sectors. Collecting and using DEW together with more efficient use of irrigated water represents savings of up to 90% irrigated water. Square cover over a plant’s root system and the surrounding soil (replaces traditional plastic mulch) collects dew during the night and prevents evaporation during the day directing all water to one single point- the root system. Irrigated water is directed more efficiently to the right spot.
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Total freshwater withdrawals reported for 163 countries by the Pacific Institute showed that in the median country residential water use accounted for 16% of total freshwater withdrawals (Gleick et al., 2006). Therefore, residential conservation efforts can make a strong positive contribution to reducing pressure on water resources. Reducing water use in municipal systems also contributes to climate change mitigation by decreasing energy consumption and greenhouse gas emissions.
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Zimbabwe is struggling with the adverse effects of climate change on the country’s water supply, while at the same time the energy supply often cannot meet the industry’s demand creating a strain on the power grid. Previous studies that indicated a high resource efficiency improvement potential in key industries in the country have triggered policy initiatives, however, these could not be implemented successfully due to a number of barriers. To mitigate these challenges the Government of Zimbabwe approached the Climate Technology Centre and Network (CTCN) for assistance.