Environmental News Archive

An almost weekly update of environmental news, particularly marine updates, with occasional splatters of transportation, indigenous, ideas of sustainability and sustainable development from around the world.

27.7.07

National Parks Board plans new measures to prevent mishaps

By Leong Wee Keat, TODAY
27 July 2007

SINGAPORE: New preventive measures are being taken by the National Parks Board (NParks) following the deaths of two people who were killed by a falling tree and a falling branch in May, a coroner's inquiry was told yesterday.

State Coroner Ronald Gwee, who recorded misadventure verdicts in the deaths of Madam Ho Siew Lan and Mr Nguyen Ngoc Quang, expressed confidence that the new measures would help prevent future accidents. Their deaths, the court held, were attributable to "forces of nature".

At Bukit Batok Nature Park, where Mdm Ho, 42, was killed by a falling tree on May 15, NParks will install weather alert signs so that park users can call the Meteorological Services for the latest weather reports.

Tree Top Walk, at the Central Catchment Nature Reserve, where Mr Nguyen, 25, was hit by a falling branch, will be closed to visitors in the event of lightning and thunderstorms.

NParks will also build rain shelters with lightning protection along the trail. These shelters are expected to be ready by the end of this financial year.

The court heard that Mdm Ho had decided not to continue with her walk after the wind began blowing strongly, and a drizzle started, on the day of the incident. She died from multiple injuries after a 30-m-tall tree fell on her. Investigations revealed that the fallen tree's roots and trunks were healthy but that the ground was wet due to heavy rain earlier.

Two weeks later, Mr Nguyen, a Singapore permanent resident from Vietnam, died from head injuries after a falling tree branch hit him as he was trekking with friends. - TODAY/fa

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9.7.07

Toa Payoh Town Park revamped with greener feel

By Dustin Chin, Channel NewsAsia
09 July 2007

SINGAPORE: An old park amidst a cluster of highrise developments in central Singapore has taken on an even greener feel.

Toa Payoh Town Park has been revamped into the ultimate attraction for park lovers and green enthusiasts alike, with new environmentally friendly features.

Many visitors, such as retiree Eileen Martinus, describe the new space as almost magical.

"Now I feel that it is a very good place, a very good idea actually because Toa Payoh is very busy, with a lot of traffic and a lot of people, and this is... sort of a haven," said Martinus.

Improvement works started about a year ago.

Now in its second phase of redevelopment, the park boasts some new features which make it stand out.

"There is a new walkway, about 30 to 40 metres long, which is made of recycled jarrah timber, and also we have added a variety of water plants along the edge of the pond," said Ang Chiean Hong, Section Head (Parks), National Parks Board (NParks).

"Visitors can look out for new trellises and new rest areas at the edge of the pond."

The materials used for the redevlopment of the park have been selected for ecological reasons.

"By using recycled jarrah timber, it is in line with NParks' policy of environmental sustainability. Recycled jarrah timber is an eco-friendly alternative to new timber," said Ang.

It is hoped the improvements will help draw more visitors to the area and promote environmental awareness.

Since it is just a stone's throw from the estate's transport hub, park planners know it won't be too long before this happens.

Said nurse and park visitor Ohnmar Aung, "It has to be environmentally friendly because Singapore is known for it. If we cut all the wood down there, then we are cutting down our natural resources every day. We won't live properly and we are killing our own world.

"We'd better use the recycled trees for our own future... so yes I think it's a very good choice." - CNA/yy

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6.7.07

Sentosa corals to get new home as work on integrated resort begins

By Teresa Tang, Channel NewsAsia
06 July 2007

SINGAPORE: Corals from Sentosa's Northern coastline are being permanently moved to a new home, to make way for the construction of the integrated resort on the island.

To ensure a successful migration, marine biologists are assisting Resorts World at Sentosa in a major conservation project.

Galaxia and Turbinaria are two hard corals having to leave Sentosa which has been their home for some five years.

The corals will first be chiselled off rocks, placed in an underwater holding site and then transported to the Southern Islands.

But not all corals will make the move.

Sonja Pans, Head, Environmental Management Services, DHI Water & Environment, said: "Our divers must be able to carry them around, which limits the size of the corals, maybe to 30 cm, maximum 50 cm in diameter.

"We chose them as well in terms of the suitability of survival rate, meaning how likely it is that the coral will survive... if they are really healthy, you want to take them."

Organisers say preserving corals like these means preserving a part of Sentosa.

Said Patrick Too, Deputy Director, Projects, Resorts World at Sentosa, "This is another one of our efforts for Resorts World to conserve whatever we can. We try to protect whatever's available right now, because this marine life is part of the heritage in Sentosa."

The coral conservation project complements the resort's tree conservation programme, to ensure the island's natural habitat is protected.

The coral project is expected to be completed by early August. - CNA/yy

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13.6.07

Resorts World at Sentosa launches tree conservation programme

By Wong Siew Ying, Channel NewsAsia
13 June 2007 1658 hrs

SINGAPORE: When the S$5.2 billion (US$3.2b) integrated resort at Sentosa opens in three years' time, not everything will be brand new.

Its operator, Genting International, is launching a massive conservation exercise to protect hundreds of trees that are currently on its 49-hectare site.

Of the 3,000 trees on the site, one third are earmarked for conservation.

The trees that make the cut will be pruned and packed off to a temporary nursery - about 1.5 times the size of a football field – located nearby.

So far one hundred trees have been transplanted and over the next few weeks Resorts World at Sentosa will transplant 200 more.

The trees will be replanted at the resort when construction is complete.

It will cost about S$400,000 (US$259,000) to maintain the trees over three years.

This is three times the price of buying new nursery stock.

But the operator says the mature trees will add to the tropical ambience of the attraction, and provide "instant" shade, lowering the temperature by up to 8 degrees Celsius.

Henry Steed, Landscape Architect, said: "Not only does the shade cool the air, it cools the ground so you don't have the heat coming off the ground.

"... the other thing about trees is that they suck up moisture and pump that moisture out at the top, which means there's an air current flowing up the top of the tree.

"... that means air will be drawn in underneath the tree and pass [upwards], which is why when you sit under a tree you'll find there's a slight breeze."

Most of the protected trees are about three to five metres high and between 20 and 25 years old.

They comprise 15 species, including Banyan trees, Rain trees, Palms and Khaya trees.

It takes two days to transplant a large Banyan tree, while smaller ones can be processed in half a day.

Experts say only mid-sized trees are transplanted. Those that are too big are unsafe to be moved and have a low survival rate.

Some trees that cannot be transplanted will be re-used.

The timber from some 300 trees of 10 different species will get a new lease of life as furniture, souvenirs, and even sign posts at the new resort.

This recycling project is expected to cost about S$300,000.

Said Patrick Too, Deputy Director of Projects, Resorts World at Sentosa, "Doing the souvenirs, this is another cost for us. We've not cost it [yet], but it's probably another chunk of money.

"It actually involves a lot of cost for Resorts World, not only just to put them in the mills or in the nursery... [but also] the cost of putting them back. Each of these trees... involves a few tonnes, so the machinery to bring them around... is a big task."

Separately, a 2.9 hectare forested area will also be conserved and protected from heavy engineering works.

The operator is currently studying various minimal-impact construction measures such as light-weight structures and suspension systems.

The woodland will also be incorporated into its building plan.

Genting will have another nursery, likely to be in Johor, where it will cultivate some 1,500 trees for its Sentosa resort.

The contract for the project will be up for tender in about a month.

The conservation plan is one of the largest tree transplanting exercises carried out for a commercial development in Singapore. - CNA/yy

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Chinese Demand Drives Global Deforestation Crisis

June 13, 2007 — By Tansa Musa, Reuters

NGAMBE-TIKAR, Cameroon -- From outside, Cameroon's Ngambe-Tikar forest looks like a compact, tangled mass of healthy emerald green foliage.

But tracks between the towering tropical hardwood trees open up into car park-sized clearings littered with logs as long as buses.

Forestry officers say the reserve is under attack from unscrupulous commercial loggers who work outside authorised zones and do not respect size limits in their quest for maximum financial returns.

"I lack words to describe what is going on here," says Richard Greine, head of the local forestry post, 350 km (220 miles) north of Cameroon's capital Yaounde.

"Both illegal and authorised exploiters have staged a hold-up on the forest."

From central Africa to the Amazon basin and Indonesia's islands, the world's great forests are being lost at an annual rate of at least 13 million hectares (32 million acres) -- an area the size of Greece or Nicaragua.

The timber business is worth billions of dollars annually, and experts say few industries that size are as murky as the black market in wood.

Evidence of rampant deforestation around the globe points in one direction: booming demand in China, where economic growth is fuelling a timber feeding frenzy.

In just the past decade, China has grown from importing wood products for domestic use to become the world's leading exporter of furniture, plywood and flooring.

Chinese firms might not be chopping down the trees themselves, but their insatiable appetite is driving up prices, spurring loggers to open more tracks like those torn through Ngambe-Tikar and drawing huge global investment to the companies.

COLONIAL RELICS

In Mande village on the fringe of the Cameroon jungle, Pierre, a hunter dressed in tattered shorts and T-shirt, does not know that more than half his country's original forest cover has been cut down in his lifetime.

But he knows the local eco-system has been ravaged.

Once upon a time, wild animals would sometimes stroll right into his compound. "These days you don't see any. They don't fall into our traps anymore. You need to go very far, deep in the forest to see or catch one," he tells Reuters.

As usual, it is the poorest who pay.

In nearby Democratic Republic of Congo, the lure of timber wealth has seen loggers accused of cheating villagers with deals activists say are a "shameful relic of colonial times".

A two-year investigation by Greenpeace accused companies, mostly from Germany, Portugal, Belgium, Singapore and the United States, of illegally acquiring titles to about 15 million hectares (37 million acres) of Congolese rainforest after a 2002 moratorium.

In return for small gifts such as farm tools, bags of salt and cases of beer, the firms won logging rights worth hundreds of thousands of dollars, the probe found.

The biggest target of the loggers is Afromosia, or African teak, which can sell for hundreds of dollars a cubic metre.

Locals in one village, Lamoko, Greenpeace says, gave away thousands of hectares for presents worth only about $20,000.

Depressingly similar accusations mar the logging industry in Brazil, home to most of the Amazon basin -- the planet's largest remaining tropical rainforest.

FOREIGN MERCENARIES

About a fifth of Brazil's Amazon has already been destroyed, and Chinese demand for commodities such as iron ore, bauxite and especially soy, has been a big factor in pushing the country's agricultural frontier further north.

Most illegal logging is done by Brazilians, either poor migrants from the dry northeast or cattle ranchers and soy farmers coming in from the south.

The government has long been criticised for deforestation and has a very public policy of stopping illegal clearing and slowing clearing rates overall. But the frontier area is very remote, and police are underfunded, disorganised and often corrupt.

Spinning the globe further west, the problem is perhaps even more acute in Indonesia.

Without drastic action, the United Nations says, 98 percent of its remaining forests will be gone by 2022, with dire consequences for local people and wildlife, including endangered rhinos, tigers and orangutans.

In parts of Borneo and Sumatra, for instance, scientists are still finding new species of animals and plants but fear these could be lost to science before being studied fully.

Jakarta says illegal tree felling is ravaging 37 of its 41 national parks, and now accounts for about three-quarters of all logging in Indonesia.

Like the United Nations, it blames a well-organised, shadowy network of multinational firms it says are increasingly targeting its parks as one of the few remaining sources of commercial timber supplies.

The government has deployed soldiers at least three times in recent years to confiscate wood and chase out loggers, and is training quick response ranger teams to police protected areas.

But experts say the new units are crippled by lack of funds, vehicles, weapons and equipment, and face a huge threat from loggers who are often guarded by heavily armed militia led by foreign mercenaries.

"At this rate, by 2012 the forests in Sumatra, Borneo and Sulawesi will be gone, only the forests in Papua will be left," local environmental campaigner Rully Sumada tells Reuters. "And if cutting of trees continues, no forest will be left by 2022."

BARCODES AND PYGMIES

The plight of forests is a focus of a June 3-15 United Nations meeting in The Hague that gathers signatories of a global pact to save threatened species.

The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) already includes Latin America's bigleaf mahogany and Southeast Asia's ramin and agarwood trees in Appendix II, which requires strict trade controls to protect them.

Ramin, for instance, is sought after to make picture frames, pool cues, parquet flooring and decorative mouldings.

But Brazilwood, used to produce violin bows, was the only tree species to win tighter protection at the U.N. meeting in the Hague. Bids to curb logging of South and Central American cedar and rosewood trees, the source of some of the world's most valuable timber, failed after objections by several countries.

Many poor nations want the rich world to extend the Kyoto Protocol, the main U.N. plan for fighting global warming, to give farmers credits for letting forests stand rather than sell trees to loggers or clear land for crops.

Trees soak up carbon dioxide as they grow and release it when they rot or are burnt.

The United States and the European Union -- the second and third biggest markets for Indonesian timber after China -- have both agreed in principle to ensure Indonesian forest product imports are verified as legal.

But experts say the amount of investment in the logging companies from the industrialised world vastly outstrips donor efforts to help Jakarta.

Trying to cut into the loggers' vast illicit profits, activists are fighting back with campaigns to persuade Western consumers to ask questions about where their wood comes from.

The Geneva-based Tropical Forest Trust (TFT), a charity set up in 1999, has launched a programme in Indonesia under which a tree destined for felling is given a unique barcode.

The idea is to let buyers identify verified legal wood from sustainable sources, TFT executive director Scott Poynton says.

"The international wood business is so full of traders and middlemen operating in a world of bribes, corruption and illegal practices that, unfortunately, we encourage buyers to assume everyone is guilty until proven otherwise," Poynton says.

He sees China as a major problem, sucking up illegal timber from all over the world and re-exporting it.

TFT also works in central Africa, where it has issued the latest computer technology to illiterate pygmy communities desperate to save their forest homes in the Republic of Congo, across the jungle border from Cameroon's Ngambe-Tikar.

Using touch screens on specially designed handheld global positioning system (GPS) units, the villagers mark the location of everything from sacred trees to crucial water sources and ancestral graveyards. The data is compiled and the timber companies are supposed to work around the important areas.

ANYTHING "AT A PRICE"

And TFT is working in China helping factories eliminate illegal supplies by identifying where their wood comes from.

While much of the world's illegal logging is driven by China's hunger for wood, few of the teak floorboards and ebony tables rolling out of its sawmills and factories end up in its own booming, smog-shrouded cities.

Despite rising incomes, few people can afford them. Instead, most of the valuable logs are exported as solid wood furniture, boards, or just veneer on cheaper products.

Centuries of domestic demand have slashed China's own forests, and demand for foreign supplies soared after Beijing tried to halt logging in remaining pockets in the 1990s after massive runoff from denuded slopes contributed to deadly floods along the Yangtze River.

But China's leaders appear to have little concern about exporting those problems to immediate neighbours or countries further away.

Under the glare of the international spotlight, they say they have clamped down on illegal imports from poor neighbour Myanmar.

But in the Nu river valley which runs along much of that frontier, piles of trunks over a metre thick are stacked by the valley mouth of most cross-border roads and loaded trunks trundle south.

In the regional hub of Mangshi, a trader surrounded by stacks of cheaper Chinese wood says he has no teak to hand but can order anything from across the border "at a price".

"If you know what you want, I have contacts in Myanmar who can get it within a couple of days," he tells a customer.

(Additional reporting by Daniel Wallis in Nairobi, Emma Graham-Harrison in Beijing, Mita Valina Liem in Jakarta and Andrea Welsh in Sau Paulo)

Source: Reuters

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9.6.07

Nature guide calls for more checks along Tree Top Walk

09 June 2007 (CNA)

SINGAPORE: Nature lovers are back on the Tree Top Walk off Upper Thomson - after it was re-opened to the public on Saturday.

It had been closed since Vesak Day (31 May) after a man was killed by a falling tree branch while on the trail that rainy day.

Nature Trekker Volunteer Guide Siva Venthan felt he cheated death on that fateful Vesak Day.

The 52-year old was on his regular trek through the Tree Top Walk, when it started raining heavily.

He immediately sought shelter under the suspension bridge.

It proved to be a wise move, for just minutes away on the boardwalk, a Vietnamese man died instantly - after a falling branch, measuring about 1.5metre long and 20cm thick, hit him on the head.

Nature trekkers say rotten branches can break off any time, not necessarily only during stormy weather.

Therefore even in good weather, there are hidden dangers that nature trekkers must keep a constant look-out for.

"When you're walking along the forest trail, and suddenly, even on normal days, when you suddenly hear a loud cracking sound, straight away you put your hands over your head, and look up! And if you see anything falling directly in front of you, or above you, dive for cover, away from the falling branch," advises Siva.

What bothered Siva was just a couple of days before the fatal accident, a huge tree had fallen on the lower end of the boardwalk - damaging it.

NParks have since replaced the planks.

But Siva was of the view some trees along the popular boardwalk are less than healthy, and more rigorous checks are needed for the rotting branches to be removed.

But trekkers should also learn to protect themselves, for example if it should rain suddenly.

"You see the man-made structure is already there, you can take advantage by going under the bridge. And then if it's stopped raining then you can continue from there. But you still got to have nature sense. Get some guidance," says Siva.

Tips like these are something groups like Nature Trekkers hope to share - especially with first-time visitors to Singapore's tropical rainforests. - CNA/yy

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8.6.07

More certified sustainable wood in Bolivia

The Rainforest Alliance Joins with ForestWorld to Maximize Availability of FSC-Certified Wood to Use in Production of Furniture, Flooring and Decking in Bolivia

June 08, 2007 — By the Rainforest Alliance

The Rainforest Alliance has signed a SmartSource agreement with SumaPacha Industrial S.A., a Bolivia-based wood product manufacturer, to help maximize the availability of wood that comes from responsibly managed forestlands certified by the Forest Stewardship Council (FSC) for the company's use in the production of furniture, flooring and decking. SumaPacha is a subsidiary of ForestWorld LLC, a Greensboro, North Carolina-based manufacturer of FSC-certified wood products made from Latin American tropical hardwoods.

SumaPacha is the first company in South America to sign a SmartSource agreement, which is an initiative of the Rainforest Alliance's forestry program that aims to help businesses improve their forest product purchasing policies and practices and increase their access to FSC-certified wood by strengthening relationships throughout their supply chains. The agreement will help the company meet its growth targets and fulfill the increasing market demand for home products that come from responsibly managed forestlands.

"The Rainforest Alliance promotes collaboration among private industry, producers and consumers as a tool for truly integrating responsible practices throughout a supply chain," said Daphne Hewitt, senior project manager with the Rainforest Alliance. "ForestWorld and SumaPacha have demonstrated their commitment to responsible production by continually seeking to increase the volume of FSC-certified wood that is purchased for their manufacturing facility in Bolivia and have become leaders in their industry. The Rainforest Alliance is pleased to work with SumaPacha to ensure continued success with FSC certification."

Goals of this agreement include getting more than 400,000 new hectares (988,400 acres) of forestland in Bolivia and Peru to meet the FSC's environmental and social standards and providing market incentives for community and indigenous suppliers to participate in a sustainable forest product market chain with SumaPacha.

"ForestWorld is excited to work with the Rainforest Alliance on increasing the area of FSC-certified forestlands in Bolivia and Peru," said Chris Anderson, CEO of ForestWorld. "This joint effort will help in our mission of protecting tropical forest areas through responsible forest management. By including a goal to certify indigenous community areas, this endeavor will also help us ensure that local residents benefit from the natural resources from which our products are made."

SumaPacha manufactures high-end outdoor furniture, flooring and decking, using traditional and non-traditional tropical hardwood species from Bolivia and Peru and specializes in offering socially and environmentally responsible products. The company owns a 300,000-square-foot manufacturing facility in La Paz, Bolivia and supplies leading retailers in the United States and Europe.

With growing market demand for certified products, SumaPacha called on the Rainforest Alliance to help reach out to concession holders and indigenous communities to certify their areas and thus increase the volume of available FSC-certified wood that meets the company's specifications.

The Rainforest Alliance will design training for SumaPacha's priority suppliers to enable them to meet the company's specifications, including enhanced business and processing skills, and explore the potential for additional new suppliers to become FSC-certified in the near future.
This agreement builds on Bolivia's leadership role in FSC-certified tropical forestland. With nearly 2 million hectares (nearly 5 million acres) of tropical forest certified in Bolivia, the country is second only to Brazil with the largest area of FSC-certified tropical forest in the world.
The Rainforest Alliance's SmartSource initiative helps manufacturers, retailers and consumers develop responsible purchasing plans and supply chains for forest products such as lumber, paper and packaging. As part of SmartSource, Rainforest Alliance experts review and outline steps to improve supply chains, offer workshops and training related to forest product supply chains and responsible forest management, and provide guidance in developing a purchasing policy, among other things.

The Rainforest Alliance works to conserve biodiversity and ensure sustainable livelihoods by transforming land-use practices, business practices and consumer behavior. For more information, visit www.rainforest-alliance.org

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31.5.07

Man dies after being hit by fallen branch near Tree Top Walk

By Gamar Abdul Aziz/Suzanne Ho, Channel NewsAsia
31 May 2007

SINGAPORE: Another death by a broken tree branch – a Vietnamese man in his 20s was killed when he was struck by a fallen branch on Thursday afternoon.

The incident happened at the exit of the Tree Top Walk trail (Petaling Trail) near MacRitchie Reservoir at the Central Catchment Nature Reserve.

The man was pronounced dead at the scene.

According to NParks, the man was with his brother and three other friends at the time of the accident but the rest were not injured.

It was also raining heavily and the wind was strong at the time of the incident.

The branch is from a big forest tree, estimated to be 30m tall and is known as Litsea.

The police are investigating the case.

NParks says its standard practice is to close the gate to the Tree Top Walk during bad weather.

And in this case, the gate was closed when it started to drizzle, but unfortunately the group involved in the incident had already passed through.

NParks says it is very saddened by this incident and conveys its condolences to the family of the deceased.

NParks reminds the public to exercise caution when walking in forested areas during bad weather.

NParks will be conducting further checks on the safety of that area and the Tree Top Walk will be closed to the public until Saturday, 9 June.

It adds that it will continue to maintain vigilance in its checks on trees to ensure that they are safe.

Just over two weeks ago a woman was killed and two of her friends injured, when an Albizia tree in the Bukit Batok Nature Reserve collapsed on them.

On the same day, a Singaporean man died in Mount Ophir in Johor, when a tree fell on him.

And five days later, another man died in the same way, also on Mount Ophir. - CNA/yy

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17.5.07

Fallen raintree in Bukit Batok kills one and injures two

By Chua Su Sien / Julia Ng, Channel NewsAsia
15 May 2007 2130 hrs

SINGAPORE: One woman was killed and two of her friends injured, when a raintree in the Bukit Batok Nature Reserve collapsed on them Tuesday morning.

17-year-old Polytechnic student Quek Choon Kiat knew this route well – it was one that his mother, 43-year-old Ho Siew Lan, used to take for her morning walk.

But Madam Ho's Tuesday jog turned out to be her last.

A tree fell on her, killing her on the spot.

Her family only found out something was amiss some three hours later, when they got a call from the dental clinic where Madam Ho worked as an assistant.

"The dentist called us at home to ask why she was so late and didn't turn up to open the clinic. So I quickly asked my son to come down and look for her," said Choon Kiat’s father.

Choon Kiat never imagined he would stumble onto the grim task of identifying his mother's body.

"I saw the police and reporters there. I went to approach the police and they showed me my mum. And I recognised my mum," said Choon Kiat.

The area's MP, Halimah Yacob, is out of the country but her fellow MP came to offer help to the family, who were still in shock.

"Now the most important thing is to help the deceased's family to overcome the crisis. My grassroots members have also donated $2,000 to help the family tide this difficult time," said Ang Mong Seng, MP, Hong Kah GRC.

"My mum put in a lot of time and love to care for the family and for us. She worked hard all her life for us. She didn't get to enjoy life at all and now she's gone," said Choon Kiat.

Choon Kiat has an elder brother who is in national service.

The family celebrated Mother's Day on Sunday with a simple meal and a stroll around their neighbourhood. - CNA/yy

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Heavy rain, strong winds caused tree to fall in nature reserve

By Pearl Forss & Chua Su Sien, Channel NewsAsia
16 May 2007 2136 hrs

SINGAPORE: The tree, which fell on three women at the Bukit Batok Nature Reserve on Tuesday, was a healthy tree, said the National Parks Board (NParks).

But it was a combination of factors such as strong winds, continuous rain over several days and softened soil which caused the tree to be uprooted.

The 10-storey high tree collapsed on Tuesday morning, killing one and injuring two others.

When Channel NewsAsia visited the site on Wednesday, an even larger area was cordoned by the authorities to conduct checks on the trees.

NParks said Tuesday's heavy rain softened the soil, and with exceptionally strong winds of up to 70 kilometres per hour, the Albizia tree, which has weak roots, was uprooted.

The tree grows in the wild and is not usually found in parks.

Bukit Batok Nature Reserve, where the incident occurred, is a secondary forest.

Ben Lee, Head, Nature Trekker, said: "I would advise those who are going to nature reserves or parks to be careful and to look out for sounds and cracks within the vicinity of your walking space."

Other secondary forests in Singapore are mostly found in the central catchment area as well as on Pulau Ubin.

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