(1) Increase in Temperature in arable areas (Threats to food security) Duration of crop growth cycle are related to temperature. An increase in temperature will speed up development. In case of an annual crop, the duration between sowing and harvesting (growing season length GSL) will shorten, which will affect productivity. Heat stress at critical reproductive …
Tag Archives: biodiversity
POSSIBLE IMPACTS ON AGRICULTURE
Agriculture is open to environment and depends heavily on it. Effect on crops: Maize crop in southern Africa may decrease by 30% of its main crop by 2030, in South Asia rice, millet and maize may decrease by 10%. Effects in different climatic zones: In tropical and sub-tropical regions, crop yield may decrease due to …
Why Climate is Changing? Reasons for Climate Change
Natural Natural Variability (Tectonic motion, Albedo effect, Solar Activity (1360 W/m2 : it varies a little) Volcanic Activity (Heat, Aerosols: S (+ve albedo), black carbon, mineral dust(-ve albedo) Land (Movement of continents, million years) Oceans (Carry huge amount of heat and circulate throughout the globe from equator to high latitudes) Anthropogenic Population expansion Urbanization Land …
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January 2016 Was the Most Abnormally Warm Month Ever Recorded, NASA Says
Hottest January On Record Meteorologist Danielle Banks discusses how a NASA study revealed that January 2016 is the hottest January on record. January 2016 was not only Earth’s warmest January on record, but also featured the largest warm departure from average for any month, according to two separate analyses released this week. The first month …
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Climate Change and Green House gases
Change in steady state temperature of earth by the presence of atmosphere containing greenhouse gases (CO2, Methane, Nitrous oxide, Ozone, halocarbons (CFC + Hydro CFC), Water vapours/ clouds) that absorb radiation. Any systematic change in the long-term statistics of climate elements sustained over several decades or longer (The American Meteorological Society) Thus when climate for …
Weather and Climate
Weather: The actual state of the atmosphere at a particular time. We refer to weather when we say that the low and high temperature on 10 June 2015 at the University of Agriculture Peshawar were 22oC and 40oC, respectively, and there was no rain Climate: The weather condition averaged over a longer period of time usually …
To develop understanding about crop production under changing climate
Climate and agriculture; Climate variability and change, past, present and future scenario; Impact of climate change in temperate, humid, sub-humid, semi-arid and arid regions; Impact of climate change on vegetation (C3 & C4), crops, pests, livestock and natural resources; Strategies for managing climate change vulnerability (Adaptation & Mitigation)
Agriculture 