dr. rakhshan roohi wrri, narc, islamabad, pakistan files/a0711/02pk.pdf · • pakistan environment...
TRANSCRIPT
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Dr. Rakhshan Roohi
WRRI, NARC, Islamabad, Pakistan
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Contents• Country’s background• Climate change and agriculture• National policy initiatives • Farm mechanization and needs
for adjustments• Recommendations
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Per Capita Water Availability Per Capita Water Availability (ft(ft33/year/year )
Population (millions)Population (millions)Population (millions))
0
20000
40000
60000
80000
100000
120000
1981 1998 2003 2010 2025 2035 2050
Water StressWater StressWater ScarceWater Scarce
0
50
100
150
200
250
300
1981 1998 2003 2010 2025 2035 2050
Source: PMD; National Institute of Population Studies
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Land utilization statistics (million ha)Geographical area 79.61Forest area 4.01Not available cultivations 24.32Culturable waste 9.00Cultivated area 22.15Current fallow 6.61Net area sown 15.54Area sown more than once 6.97Total cropped area 22.51Source: GOP, 2005
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Figure 3. Share of Agriculture in GDP
05
1015202530354045
1969-701998-99
2000-01
2001-20022002-03
Year
Perc
ent S
hare
Agriculture Major crops Minor cropsLivestock Fishing Forestry
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Land utilization over time (%)Land use 1960 1972 1980 1990 2000
Farm area cultivated
76 83 83 82 81
Area net sown 86 92 95 96 94Intensity of land use 84 89 89 87 85
Cropping intensity 103 111 122 137 142Source: GOP, 2005
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ICE CREAM
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Climatic Trends• Increasing concentration of CO2 in the
atmosphere• Pre-industrial revolution (1789)280 ppm• Present (2004) 383 ppm• Expected level (2050) 550 ppm
• Rising surface temperatures• Global Av. Temp. rise 0.6 °C
(20th century) • Projections for 2100 1.4 to 5.8 °C
• Changing rainfall patternsIncrease in monsoon rainfall in sub-humid and humid
areasDecrease in winter and summer rainfall in coastal belt
and hyper arid plainsSource: IPCC, 2001Source: IPCC, 2001
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Source: Shahid et al, 2003
Change in Mean Temperature during 1961-90 from that of 1931-60
Increase mean in temperature
Deccrease mean in temperature
LegendIncrease
Decrease
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RAINFALL PATTERN IN NORTHERN AREAS DURING (1961-2000)
0
100
200
300
400
500
600
700
1960 1962 1964 1966 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002
YEARS
PREC
IPIT
ATIO
N (m
m)
MAXIMUM TEMPERATURE PATTERN IN NORTHERN AREAS DURING (1961-2000)
18.0
19.0
20.0
21.0
22.0
23.0
24.0
25.0
1960 1962 1964 1966 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002
YEARS
TEMP
ERAT
URE
(°C)
Fig-2(a)
Pakistan Meteorological Department
MINIMUM TEMPERATURE PATTERN IN NORTHERN AREAS DURING (1961-2000)
6.0
7.0
8.0
9.0
10.0
11.0
12.0
1960 1965 1970 1975 1980 1985 1990 1995 2000
YEARS
TEMP
ERAT
URE (
°C)
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Annual Water Availability (Western Rivers)
Rim Station Inflows (billion m3)Probability (%)1937-67 1968-96
Minimum 134.5 114.910 143.9 135.525 163.1 153.250 173.0 162.175 184.9 180.990 198.2 189.6
Maximum 231.7 206.0
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GDDand Corresponding GSL
Climate-Water-Agriculture Linkages
Crop Water Demand
Water Availability
Evapo-transpiration (ET)
Agriculture (Crop Yield)
Photosynthetic Activity
Climate
Temperature Rainfall
Wind, Sunshine,
Solar Radiation CO2 level
Canal/groundwater
Source: Dr. Mohsin Iqbal, GCISC
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Climate change research in Pakistan
• Physical IndicatorsWater Resources• Glaciers & glacial lakes• GLOFs• River flows • Climate
• Biological Indicators• Agriculture• Natural Ecosystems
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If only Temperature Changes(Semi-Arid Areas)
0
1000
2000
3000
4000
5000
1 2 3 4 5
Change in Temperature (°C)
Yiel
d (k
g/ha
)
Baseline Yield((COCO22 Level = 360 Level = 360 ppmppm))
Source: Dr. Mohsin Iqbal, GCISC
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If both CO2 and Temperature Change(Semi-Arid Areas)
0
1000
2000
3000
4000
5000
1 2 3 4 5
Change in Temperature (°C)
Yield
(kg/
ha)
360 550Baseline Yield
Source: Dr. Mohsin Iqbal, GCISC
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If both Water Availability and Temperature Change
((COCO22 Level = 360 Level = 360 ppmppm))
0
1000
2000
3000
4000
5000
0 1 2 3 4 5
Change in Temperature (°C)
Yiel
d (k
g/ha
)
4 Irrigations 2 Irrigations
Baseline Yield
Source: Dr. Mohsin Iqbal, GCISC
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If both Water Availability and Temperature Change(Semi-Arid Areas)
0
1000
2000
3000
4000
5000
0 1 2 3 4 5
Change in Temperature (°C)
Yiel
d (k
g/ha
)
4 Irrigations 2 Irrigations
Baseline Yield
((COCO22 Level = 550 Level = 550 ppmppm))
Source: Dr. Mohsin Iqbal, GCISC
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National Policy Initiatives
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• Pakistan Environment Protection Act-1997• Pakistan Environmental Protection Ordinance -
1983• Enactment of National Conservation Strategy -
1992 • Forestry Sector Master Plan and NCS plan of
Action and the finalization of a National Environmental Action Plan (NEAP) -February 2001
• Establishment of Global Change Impact Studies Centre-2002
• Establishment of Alternate Energy Board
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Climate Change &
Clean Development Mechanism
(CDM)
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Institutional Set-up for CDM
PM Committee on Climate Change
Policy Formulation and Implementation CDM Steering Committee
Project Proponent
CDM Cell
Technical Committees
National and International Stakeholders
Operational
Facilitation and
Promotion
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Farm Machinery InstituteNARC
Promotion of agricultural mechanization in the country through designing, performance evaluation and commercialization of appropriate farm machinery
– crop establishment engineering– harvesting and threshing engineering– post harvest engineering– industrial and mechanization research– farm machinery testing and standardization.
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Developed and commercialized • paddy transplanter• zero-till drill Working on • pneumatic row crop planter• hold-on paddy thresher• solar dryer for fruits and vegetables • dual mode drill
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Needs for Adjustment in AE &FM• Energy
– Improvement in fuel efficiency in agricultural machinery – Commercialization of wind/Solar power potential– Development and commercialization of cost effective solar
panels– Biofuel– Biogas production units
• Farm Operations– Low cost laser leveler– Minimum/zero tillage– Furrow-Bed plantation to save water
Continued…
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• Water Resources
• Better techniques for determining crop water requirements or irrigation demand preferably sing RS/GIS techniques
• Efficient Irrigation systems like sprinkler, trickle or Central Pivot systems
• The water injection cum fertilizer drill can be one of the solutions for timely sowing, particularly rainfed crops
• To address the low Irrigation efficiency Development and commercialization of low-cost geo-membrane liners for lining of canals and watercourses
• On-farm rainwater harvesting and storage structures
Continued…
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• Livestock
– Environmental management systems and preventing pollution for intensive animal production units
– Animal housing and storage structures with ventilation systems, temperature and humidity controls, and on-farm waste management
• Nursery & Greenhouse Engineering – For off season vegetables and nursery
development cost effective greenhouse/plastic tunnel structures need to be developed
– Equipment for hydro-ponic cultivation??
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Recommendations
• Strengthen international partnerships to address the expected threats of climate change
• The regional information/data sharing should be encouraged
• Education in climate change • System approach is required to
integrate the entire farm activities
• Continued….
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• Water management and cost effective efficient irrigation systems
• Tapping renewable energy sources and improving fuel efficiency in agricultural machinery
• Use of new tools and techniques like GIS, RS & simulation modeling for characterization and system analysis under changing climate
• Facilitate greater adoption of scientific and economic pricing policies, especially for water
• CDM Projects for small scale enterprise
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