Measuring the Impact of Climate Change on Indian Agriculture

Author(s):  
Ariel Dinar ◽  
Robert Mendelsohn ◽  
Robert Evenson ◽  
Jyoti Parikh ◽  
Apurva Sanghi ◽  
...  
Author(s):  
Raja K. Baisya

Climate change is now a reality. Agriculture in India is likely to suffer losses due to heat, erratic weather and decreased availability of irrigation. Adaptation strategies can help minimize the impact. But that will come at a cost although not still accurately measurable and is likely to be high. This also requires new policy support, research and investment. However, cost of inaction will be still higher. Carbon dioxide level is now about 400 ppm which is likely to increase to about 450 to 600 ppm during 2050 and by 2100 it is likely to go up anything above 500 ppm to 1000 ppm if current situation is allowed to continue. This paper attempts to analyse the impact of climate change on Indian agriculture in terms of decreased productivity to be seen in relation to increase in population. And to counter that impact what are the measures being initiated.


2020 ◽  
Author(s):  
Francisco J M Costa ◽  
Fabien Forge ◽  
Jason Garred ◽  
João Paulo Pessoa

We investigate the extent to which climate change will result in insurable and uninsurable losses for farmers in India. Shifts in the distributions of temperature and precipitation may increase the volatility of farmers' yields, leading to rising but insurable risk, and/or reduce mean yields and thus cause permanent reductions in the returns to farming. We use a multi-run climate model to predict the future distribution of yields at the district level for sixteen major crops. For the average district, we project a sharp decline in mean agricultural revenue, but relatively small shifts in volatility. This is because weather draws resulting in extremely low agricultural revenue -- what had once been 1-in-100-year events -- are predicted to become the norm by the end of the century, implying substantial uninsurable losses from the changing climate.


Author(s):  
N. Maidanovych ◽  

The purpose of this work is to review and analyze the main results of modern research on the impact of climate change on the agro-sphere of Ukraine. Results. Analysis of research has shown that the effects of climate change on the agro-sphere are already being felt today and will continue in the future. The observed climate changes in recent decades have already significantly affected the shift in the northern direction of all agro-climatic zones of Europe, including Ukraine. From the point of view of productivity of the agro-sphere of Ukraine, climate change will have both positive and negative consequences. The positives include: improving the conditions of formation and reducing the harvesting time of crop yields; the possibility of effective introduction of late varieties (hybrids), which require more thermal resources; improving the conditions for overwintering crops; increase the efficiency of fertilizer application. Model estimates of the impact of climate change on wheat yields in Ukraine mainly indicate the positive effects of global warming on yields in the medium term, but with an increase in the average annual temperature by 2 ° C above normal, grain yields are expected to decrease. The negative consequences of the impact of climate change on the agrosphere include: increased drought during the growing season; acceleration of humus decomposition in soils; deterioration of soil moisture in the southern regions; deterioration of grain quality and failure to ensure full vernalization of grain; increase in the number of pests, the spread of pathogens of plants and weeds due to favorable conditions for their overwintering; increase in wind and water erosion of the soil caused by an increase in droughts and extreme rainfall; increasing risks of freezing of winter crops due to lack of stable snow cover. Conclusions. Resource-saving agricultural technologies are of particular importance in the context of climate change. They include technologies such as no-till, strip-till, ridge-till, which make it possible to partially store and accumulate mulch on the soil surface, reduce the speed of the surface layer of air and contribute to better preservation of moisture accumulated during the autumn-winter period. And in determining the most effective ways and mechanisms to reduce weather risks for Ukrainian farmers, it is necessary to take into account the world practice of climate-smart technologies.


2012 ◽  
Vol 20 (1) ◽  
pp. 108-115 ◽  
Author(s):  
Wu Weiwei ◽  
Xu Haigen ◽  
Wu Jun ◽  
Cao Mingchang

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