Agriculture Reference
In-Depth Information
TABLE 15.1
Decadal Mean (% departure from normal), Frequency of Deficit and Excess
Rainfall Years During Last Century in India
Decade
Decadal mean
Per cent departure
from normal
Frequency of Deficient
year (in a decade)
Frequency of
Excess rainfall
year
(in a decade)
1901-1910
-2.2
3
0
1911-1920
-2.3
4
3
1921-1930
-0.4
1
0
1931-1940
1.7
1
1
1941-1950
3.3
1
1
1951-1960
2.5
1
3
1961-1970
-0.1
2
1
1971-1980
-0.8
3
1
1981-1990
-0.3
2
2
1991-2000
0.6
0
1
2001-2003
-5.6
1
0
Source:
Rainfall
pattern (Indian Meteorological Department, Pune, 2006).
Monthly trend indicated that July rainfall is decreasing for most parts
of central India while it is increasing for the northeastern parts of the coun-
try. However June and August rainfall is increasing for the central and
southwestern parts of the country. During the southwest monsoon season,
Jharkhand, Chhattisgarh, Kerala showed significant decreasing trend and
Gangetic West Bengal, Western UP, Jammu and Kashmir, Konkan and
Goa, Maharashtra, Andhra Pradesh and North Karnataka showed signifi-
cant increasing trends. Contribution of July rainfall is decreasing in central
and west peninsular India but August rainfall is increasing in all these
areas.
15.2.3 MELTING OF GLACIERS AND ICE COVER AT
HIGHER LATITUDES AND NEAR POLAR REGION
It will have devastating effects on temperate fruit culture in long run.
