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Managing Haze : Using Ecosystem Interactions to Our Advantage Siti Azizah Mohd Nor Shuhaida Shuib Nadine Ruppert Noor Adelyna Mohammed Akib Danial Hariz Zainal Abidin “The transboundary haze pollution has been an almost annual occurrence in Southeast Asia since 1982. It usually occurs during the southwest monsoon season between June and September, and becomes more severe during periods of dry weather. Haze pollution affects several SEA countries, notably Indonesia, Malaysia, Singapore, and Brunei, and to a lesser extent Thailand, Vietnam, and the Philippines.” http://www.wwf.sg/take_action/the_haze/#sthash.49x6oiiP.dpuf INTRODUCTION What is HAZE? – Atmospheric phenomenon where dust, smoke, and other dry particles obscure the clarity of the sky. Sources for haze particles include farming (ploughing in dry weather), traffic, industry, and wildfires. http://www.wmo.int/ INTRODUCTION What causes HAZE? Agricultural Expansion – This haze pollution is largely caused by widespread peat and forest fires in Indonesia. Many farmers there practice the slash-and-burn method of clearing land for cultivation. Agricultural expansion, driven by the growing demand of palm oil and pulp and paper has exacerbated the problem. Land Conflict – The lack of transparent land-use planning by Indonesian government authorities in the major producing regions has led to several land-conflicts between farmers. These conflicts often escalate to the point where farmers use fire as weapons, setting large areas of land on fire. Climate – It has been suggested that the recent intensification of fires and their potential to burn out of control may be linked to El Nino weather patterns detected in the region. Historically, strong El Nino systems are associated with severe droughts that exacerbate regional environmental problems – such as deforestation, forest fires, and haze. DESTRUCTIVE PERTURBATION: HAZE Annual occurrence Highly disruptive Negative impacts: – Biodiversity – Ecosystem function – Ecosystem goods and services Lack of sufficient data – how affected are the plants and animal species? Is the damage irreversible? How do ecological studies address these problems? WHAT IS ECOLOGY? A branch of science concerned with the interrelationship of organisms and their environments How does HAZE affect BIODIVERSITY? Rapid deforestation and forest fires are threatening this region’s precious biodiversity. From plants to insects to Sumatran tigers, rhinos, elephants, and orangutans. Many are critically endangered and clinging for survival. Moreover, habitat loss makes these species more vulnerable to poachers, and conflicting with humans. STRATEGIES MONITOR HAZE ECOSYSTEM RESILIENCE ECOSYSTEM SERVICES STRATEGIES Monitoring: - Collect ecological data before, during and post haze - Set up database to predict impacts of haze on terrestrial and aquatic ecosystems Ecosystem Resilience: - Record resilience of ecosystem and diversity to disturbance - Design models to preserve resilience, conserve habitat - Alleviate haze impacts Ecosystem Services: - Correlate monitoring data with resilience - Increased resilience = increased function = Increased resilience - Increased function and services INTERACTIVE EFFECTS OF HAZE TOWARDS ECOSYSTEM Botany Zoology (terrestrial) (terrestrial & aquatic) ECOLOGY Chemistry (soil, freshwater & marine) Effects of haze on photosynthesis rates Effect of forest fire on plant regeneration / growth rates Succession profile of posthaze plant communities Effects of haze on pollination rates e.g. visitation rate of pollinators, pollination efficiency Identifications of fruit trees (animal food) Botany FOREST REGENERATION Zoology Pollination Seed dispersal FOREST REGENERATION Assessment of key pollinator species & diversity = insects (bees, stingless bees etc.) - pollinating species - pollination rates - impact on haze on pollinator abundance - recovery time of pollinator populations - reintroduction efforts Assessment of key seed dispersers = primate communities - species & population count - food / diet identification - seed dispersal ability - seed dispersal rates & efficiency - impact of habitat loss on population sizes - impact of food scarcity - Soil - Freshwater - Marine Chemistry Energy & Nutrient Flow Effects of haze on P/ N cycle (affects plant growth) Changes in water chemistry in different ecosystems (marine, river, mangrove etc). Eutrophication, HAB (Harmful Algal Bloom) CASE EXAMPLE 1: MANGROVES High primary production Regulate temperature, gas cycles Sequester carbon Haze will affect the productivity of mangroves, inhibit photosynthesis But how do we know the magnitude of haze impact on mangroves? MANGROVE MACROINVERTEBRATES Resistant to extreme conditions Potential: resistant to haze impacts, example to lack of oxygen and sunlight Focus on keystone species that could accelerate recovery of ecosystem after haze Select species as bioindicators biomonitoring CASE EXAMPLE 2: PEATLANDS/ PEAT SWAMP FOREST Carbon Emissions – A particular problem for parts of Indonesia is that almost a fifth of palm oil expansion has taken place on peat lands. Peat lands store massive amounts of carbon. Once burning, underground peat land fires are extremely difficult to put out, often releasing smoke and carbon into the atmosphere for months! CASE EXAMPLE 2: PEATLANDS/ PEAT SWAMP FOREST • Peat swamp forests support a high proportion of specialized, endemic taxa, yet diversity is surprisingly high despite the inhospitable conditions (waterlogged). • Rehabilitation attempts of peat swamp forests such in various parts of the region [e.g. the Central Kalimantan Peatlands Project in Borneo), Borneo Orang Utan Survival Foundation, CARE, Wetlands International and the University of Palangka Raya DISASTER RISK MANAGEMENT PREPAREDNESS (borrowed from CGSS) So what could be done (research conducted) to address the 4 pillars of DRM for saving BIODIVERSITY and ecological health? Thank You Transforming Higher Education For A Sustainable Tomorrow • Fires can affect extensive tracts of forest and can emit significant amounts of carbon to the atmosphere. They plays a significant role as a threat to the biological balance of the forest and causes loss of biomass and emission of greenhouse gases that have critical implications for the future of forests and its inhabitants • The importance of atmospheric deposition of nutrients in terms of their biological responses in the coastal waters of the Singapore region was investigated during hazy days in relation to non-hazy days i.e. investigating nutrient fluxes from atmospheric (dry and wet) deposition onto the coastal waters and ocean • • • • • • • • • • • Concerns on rising nutrient loads and their adverse effects on large scale freshwater, estuarine and marine environment (and their inhabitants) requires for a strong need for extensive research and management of nutrients. Atmospheric deposition of nitrogen compounds can contribute significantly to eutrophication in coastal waters. The coastal and oceanic primary production due to atmospherically transported N and other nutrient sources may be promoting the major biological changes that are now apparent in coastal and oceanic waters, including the proliferation of harmful algal blooms (HAB) and decline in water quality and fish stock (Jickells, 1998). Excessive N loading to surface waters is the key cause of accelerating eutrophication and the associated environmental consequences (Nixon, 1995). Ecological effects caused by eutrophication are enhanced productivity, but these can also result in changes in species diversity, excessive algal growth, DO reductions and associated fish kills, and the increased prevalence or frequency of toxic algal blooms.