By Rattan Lal (auth.), Rattan Lal, Mannava V.K. Sivakumar, S.M.A. Faiz, A.H.M. Mustafizur Rahman, Khandakar R. Islam (eds.)
This booklet addresses a huge subject of nutrients defense in South Asia with particular connection with weather swap. Of the 1 billion meals insecure humans on the earth, greater than 30% are in South Asia. the matter of nutrients lack of confidence will be exacerbated by way of the projected weather switch specifically as a result of the water shortage as a result of fast melting of the glaciers within the Himalayas and raise in variability in monsoonal rains and frequency of utmost occasions. in addition, huge populations of Bangladesh and different coastal areas can be displaced through sea point upward thrust. therefore, this quantity addresses urged land use and soil/water/crop/vegetation administration practices which might allow land managers to conform to weather disruption by way of bettering soil/ecosystem/social resilience. as well as biophysical components, this publication additionally addresses the problems on the topic of human dimensions together with social, ethnical and political considerations.
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Extra info for Climate Change and Food Security in South Asia
Global Biogeochem Cycles 18:1–11 Haritahya UK, Singh P, Kumar N, Gupta RP (2006) Suspended sediments from the Gangotri glacier: quanitification, variability and associations with discharge and air temperature. J Hydrol 321:116–130 Jangpang BS, Vohra CP (1962) The retreat of the Skunkulpa (Ralam) Glacier in the Cenertal Himalaya, Pithoragarh District, UP, I India, Inst. Assoc. Sci. Hydrol, Pupl. No. 58 pp 234–238 Kenoyer JM (2003) Uncovering keys to the lost Indus cities. Sci Am 289:58–67 Kumar K, Dumka RK, Miral MS, Satyal GS, Pant M (2008) Estimation of the retreat rate of Gangotri glacier using rapid static kinematics GPS survey.
K. Sivakumar and R. 1 Impacts of Enhanced Temperatures While plant response to elevated CO2 is positive, recent studies confirm that the effects of elevated CO2 on plant growth and yield will depend on photosynthetic pathway, species, growth stage and management regime, such as water and nitrogen (N) applications (Jablonski et al. 2002; Ainsworth and Long 2005). Increased temperatures may also reduce CO2 effects indirectly, by increasing water demand. 5°C; additional irrigation was needed to counterbalance these negative effects (Xiao et al.
The most significant impacts are likely to be borne by small-holder rainfed farmers who constitute the majority of farmers in this region and possess low financial and technical capacity to adapt to climate variability and change. The projected impacts of climate change in different parts of South Asia are described. The coping capacity of the rural poor, especially in the marginal areas, is low and there is a need to mainstream the good practices for adaptation to climate change into sustainable development planning in the region.