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COVER STORIES
Willie Smits Shares Methodology for Sustainable Forests
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Smits identifies the harvest of palm oil as the main cause of the destruction of Indonesia’s ecosystems. Palm oil, easily grown in these areas, is used in a wide range of products from cookies to cosmetics. Demand is high, making the oil palms a major cash crop for Indonesia, but it is not a sustainable product to harvest. Illegal logging, clear-cutting, and uncontrolled burning associated with oil palm operations destroy the tropical rain forests and severely threaten the orangutan population with extinction. “Destroying forests leaves orangutans with no food and no place to run,” says Smits. Furthermore, oil palm tree cultivation provides an easy inroad for illegal logging of other valuable rain forest timber and opens access for the atrocities of animal trade. Smits combines satellite imagery and GIS to show changes both on forests and on humans. It is used to challenge the hypothesis that Borneo can indefinitely continue to support oil palm plantations; show the profit and cost factors of these sites and their proximity to transportation and shipping; assess the precision farming factors of soil, elevation, and climate and their relationship to and infringements on local communities; and disclose property ownership disparities. In Sumatra, he deployed SPOT imagery at one- by one-kilometer resolution to show how forests are receding and ground cover is changing from trees to shrubs and weeds. It is also used to reveal corruption by showing where companies say they are cultivating palm oil but are, in fact, clear-cutting high-quality rain forest. Some images reveal conspiracy between timber and oil palm businesses running covert timber operations. Flyovers above suspect areas provide aerial images that pinpoint logging equipment in areas where it should not be. The eye-of-satellite imagery and the analytic ability of GIS reveal these schemes and force the hand of law enforcers to take action. Moreover, imagery and GIS are proven tools for convincing various governments of the world that palm oil consumption is indeed destroying these
Left: GIS combines Landsat, flyover route, and aerial imagery data to reveal locations of probable illicit timber operations (yellow circles). Above: Tube network gravitationally transports sugar palm ethanol product from village production centers to the coast for shipping.
precious forests. “By using GIS, I was able to demonstrate in a very convincing way that people were misusing oil palms to get their hands on timber,” says Smits. “More than half of permitted oil palm plantations are located on unsuitable land for oil palms. They are located in areas where other highly profitable timber grows. GIS is extremely important for visually relaying this information. I don’t need to give complicated explanations of the problem because people can easily understand what is happening from our maps. They see how fast the forest has shrunk in just 3 years. This leads them to wonder what the rest of the world will look like in 10 years.” The Advantages of Sugar Palm Trees Because the Indonesian economy is so tied to the cultivation of palm oil, Smits must do more than preach conservation—he has to promote an economically feasible alternative. Smits studied sustainable options and cited the sugar palm tree, which is a multipurpose plant that is edible and can be used for creating ethanol. “It uses little water, needs no artificial fertilizer, and is six times
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as productive as sugar cane,” claims Smits. Since harvesting processes tap the juices of the sugar palm’s flowering branches rather than destroying the entire tree as does palm oil harvest, the process retains the forest’s integrity. GIS is part of the sugar palm remediation plan. It helps direct the activities of a cooperative of more than 6,200 farmers and shows them where and when to extract the palm’s liquid. It also shows the best roads for oxcart and automobile transport, processing points in the village hubs, and pipeline placement for gravitational transmission of the product down to the coast for export. GIS shows microclimates and different soil types, as well as predicts yields. These outcomes become the source for determining the amount of labor needed for planting and cultivation. “We have mapped all of Borneo’s forests to study the suitability of sugar palms,” Smits explains. “We are using these same processes in other parts of the world, such as in Colombia, where we have a pilot project that includes one million sugar palms. We are looking at the worldwide potential, looking where the temperature and rainfall are
sufficient, the infrastructure is in place for cultivation, and the human resources are large enough to perform the labor-intensive tapping processes. We have located many places throughout the world where sugar palms can be planted without depleting the soil. Among the GIS design tools are models for assessing site suitability and predicting impact on local hydrology, carbon storage, and the biodiversity of the area. GIS also indicates the best location to plant the palms and when it is seasonable to do so. GIS is a valuable tool for showing what has happened and designing plans for change.” More Information Read more about the Borneo Orangutan Survival Foundation at www.savetheorangutan.org and the Masarang Foundation at www.masarang. org. Download Willie Smits’ Keynote Address to the Esri International User Conference plenary at www.esri.com/events/uc-videos/agenda/plenary. AN