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An
extended dry spell brought about by the El Niño phenomenon
will have an adverse impact on food production, water supply,
public health, and - to a lesser extent - power generation.
The overall effect on the economy will be negative as the
agricultural sector faces severe challenges on several fronts
: pressure on agricultural commodities like rice, corn, and
coconut production; fisheries; and livestock.
Background Information
The current El Niño started in April 1997, with rising
ocean temperatures in South America and scarcity of rainfall
in Indonesia and Australia. By August, weather experts noted
that the average water surface temperature had climbed to
27.7 degrees Celsius, 3.1 degrees higher than the annual average.
The combined effect of higher ocean surface temperatures coupled
with redirected winds across the Pacific results in hurricanes
and unusually wet weather in eastern Pacific countries and
droughts in the western Pacific. Ironically named after the
Baby Jesus, El Niño peaks during the Christmas season.
It originally struck Peru and Ecuador, thus the Spanish term
"El Niño", and occurs every two to seven
years. It normally sets in from December to February and lasts
until June of the succeeding year.
The El Niño of 1982-83 was
a major one, registering more than US$13 billion worth of
damage to property and agricultural crops worldwide and claiming
2,000 lives. Drought and fires spread throughout Australia,
Southern Africa, Central America, Indonesia, South America,
India, and the Philippines. Floods and violent storms with
hurricanes ravaged the United States, Mexico, Peru, Ecuador,
Bolivia and Cuba.
The Philippine Experience
In the Philippines, the worst episodes of El Niño occured
in 1982-1983, in terms of affected areas, and in 1990-1992,
in terms of damages.In 1997, El Niño was first detected
along eastern Luzon, parts of the Visayas and Mindanao. The
delayed rainy season, weak monsoon activity, and fewer tropical
cyclones entering the Philippines were indications that El
Niño had arrived. For 1997, only 13 tropical depressions
had entered the country, about half the annual average.
El Niño's impact on the Philippines
will come in many forms: soil compression, salt-water intrusion,
high risk of forest-and-bush fires, and possible food and
water supply shortages. The most visible effects will be on
crop production. Palay and corn harvests will decline due
to lack of irrigation, leading to imports of grains. Even
coconut oil production may decline as haze generated by forest
fires from neighboring countries, retards the ripening process,
cutting down production of coconut products.
The Department of Agriculture has
estimated that the 1998 rice harvest will reach only 11.5
million metric tons, about 400,000 metric tons short of original
projections, as this prime crop is heavily dependent on water
supply. To utilize croplands in the period of the impending
drought, the Department of Agriculture has started to distribute
bags of sweet corn and vegetable seeds to farming communities
as alternative crops. Furthermore, a 90-day rice variety has
been introduced to farmers to shorten the waiting days to
harvest. The department has also worked on contingency plans
to reduce losses in all other agricultural crop production
and to change planting seasons to avoid damages from floods
and typhoons from July 1998 to October 1998.
To induce rain, the department is
planning on cloud-seeding over places used for livestock,
crop and fishery production. To implement the cloud-seeding
process, the government has set aside a minimum amount of
P48 million. The government has also released an estimated
P500 million for Small Water Impounding Projects (SWIPs).
Both these budgets will come out of a P1.3-billion fund the
government has allocated to cope with El Niño.
Rationing Water Supply
According to the National Irrigation Administration (NIA),
levels in water reservoirs have dropped to alarming points.
However, a comprehensive contingency plan for El Niño
has not been drawn up since no decision on how much water
goes to irrigation, electricity, and to households has been
reached yet. It is a fine balancing act. For instance, NIA
was forced to temporarily stop Angat Dam's water supply to
farmlands in selected areas in Bulacan and Pampanga last November
after it was determined that continuous irrigation would lead
to immediate drying up of Angat Dam, thereby leaving Metro
Manila households high and dry with little or no water.The
Angat dam is not the only water reservoir in danger of low
water level. Pantabangan and Binga dams are also approaching
critical points. In the early part of November, water levels
of the different reservoirs stood at the following levels
:
Metro Manila residents have been
advised to observe strict water conservation. Angat Dam's
water level is expected to drop further to 180 meters in December
1997 according to Maynilad Water Services. At water levels
of 160 to 170 meters, the situation is technically a drought.
To date, the lowest watermark Angat has reached was at 172
meters during the 1982-1983 El Niño period.
Both Manila Water Company, Inc. and
Maynilad Water Services are gearing to plug all the leaks,
prevent or stop illegal water connections, and conduct intensive
information campaigns on water conservation. On the other
hand, experts attending the Asia Pacific El Niño-Water
Summit / Clean Up World Conference recently held in Manila
suggest that drinking water be imported from countries which
are not experiencing El Niño. Government officials
have until June 1998 to come up with a good source of water
since Angat Dam is expected to reach critical levels during
this period.
Power: No Brownouts
With adequate sources of electricity, other than at hydro
plants, there is only a small possibility of brownouts on
Luzon even during the El Niño days. The country uses
a fairly broad mix of energy sources with enough power-generating
capacity from coal, oil, and geothermal sources to pick up
where hydro may lack. But while this is especially true for
Luzon and Visayas, it is not so for Mindanao, which is quite
dependent on hydroelectricity.National Power Corporation (Napocor)
expects the peak of the El Niño phenomenon to occur
between the months of November 1997 and April 1998. In its
mid-November 1997 report, Napocor revealed that water levels
in power-generating sources in the Luzon and Mindanao areas
may not be sufficient to produce electricity for the two power
grids, especially in Mindanao which is 70 per cent dependent
on hydroelectric power. With El Niño, only 63 per cent
will be ably supplied by hydro-based plants. The cost of power
generation should increase as additional expenses are incurred
to run non-hydro power plants.
Contingency Plans
Aside from individual agency plans like that of the Department
of Agriculture and National Power Corporation, an inter-agency
Presidential Task Force on Water Resources Development and
Management (PTFWRDM), has been formed to ensure overall water
availability in areas affected by El Niño, particularly
in urban areas. This newly-formed body is headed by the Department
of Environment and Natural Resources, with the support of
other government agencies. The new body, with its "Water
for Life"/Tipid-Tubig campaign, recommends 13 steps in
mitigating drought-related events, for which the government
has allocated P85 million. Part of its program includes:
Immediate construction of 10,000 small
farm reservoirs and shallow tube wells, specifically in
critical areas such as Bulacan due to the critical condition
of Angat Dam. To date, the number of shallow tubewells installed
has reached 8,000 units distributed among provinces.
Construction of 1,000 diversion dams
and storage facilities in the uplands. Rehab-irrigation
dams are now operating, supplying 300,000 hectares of agricultural
lands.
Enhanced fire-fighting skills for fire-prone
areas such as Ilocos, Cagayan Valley, Central Luzon, Southern
Tagalog, Western Visayas, Central Visayas, Western and Northern
Mindanao, and Cordillera Autonomous regions
Increased monitoring and continuous
information dissemination regarding the effects of El Niño
Development of drought- and high-temperature-adaptive
species of crops, fish, and other plants
Efficient use of water
Counterparts of the Multi-Sectoral Task Force,
and Task Force El Niño, have been formed in the country's
different regions.
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