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ECNU

East China Normal University
Country: China (People's Republic of)
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9 Projects, page 1 of 2
  • Funder: European Commission Project Code: 910243
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  • Funder: UK Research and Innovation Project Code: NE/J001902/1
    Funder Contribution: 14,953 GBP

    Delta regions are probably the most vulnerable type of coastal environment and their ecosystem services face multiple stresses in the coming decades. These stresses include, amongst others, local drivers due to land subsidence, population growth and urbanisation within the deltas, regional drivers due to changes in catchment management (e.g. upstream land use and dam construction), and global climate change impacts such as sea-level rise.The ecosystem services of river deltas support high population densities, estimated at over 500 million people globally, with particular concentrations in Southern and Eastern Asia and Africa. A large proportion of these people experience extremes of poverty and are severely exposed to vulnerability from environmental and ecological stress and degradation. In areas close to or below the poverty boundary, both subsistence and cash elements of the economy tend to rely disproportionately heavily on ecosystem services which underpin livelihoods.Understanding how to sustainably manage the ecosystem services in delta regions and thus improve health and reduce poverty and vulnerability requires consideration of all these stresses and their complex interaction. This proposal aims to develop methods to understand and characterise the key drivers of change in ecosystem services that affect the environment and economic status in the world's populous deltas. This will be done through analysis of the evolving role of ecosystem services, exploring the implications of changes for the livelihoods of delta residents, and developing management and policy options that will be beneficial now and in the future in the face of the large uncertainties of the next few decades and beyond.The extensive coastal fringe of the Ganges-Brahmaputra-Meghna Delta within Bangladesh has been selected as the pilot study area for this work. This is because Bangladesh is almost entirely located on one of the world's largest and most dynamic deltas. It is characterised by densely populated coastal lowlands with significant poverty, supported to a large extent by natural ecosystems such as the Sunderbahns (the largest mangrove forest in the world). It is under severe development pressure due to many growing cities, eg Khulna and the capital, Dhaka.At present the importance of ecosystems services to poverty and livelihoods is poorly understood. This is due to due to the complexity of interactions between physical drivers, environmental pressures and the human responses to stresses and the resultant impacts on ecosystems. Government policy rarely takes up the ecosystems services perspective and as a result an holistic overview of their value is often overlooked.This project aims to address this gap by providing policy makers with the knowledge and tools to enable them to evaluate the effects of policy decisions on people's livelihoods. This will be done by creating a holistic approach to formally evaluating ecosystems services and poverty in the context of changes such as subsidence and sea level rise, land degradation and population pressure in delta regions. This will be tested and applied in coastal Bangladesh and tested conceptually in other populous deltas.

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  • Funder: UK Research and Innovation Project Code: NE/I002960/1
    Funder Contribution: 208,971 GBP

    China's Premier Wen Jiabao recently commented that the sluggish development of agriculture and the slow increase of farmers' incomes constituted the nation's major problems and challenges - a view that is repeated in many developing countries. Alleviating poverty and raising standards of well-being among the rural poor is often seen in terms of inequalities in individual opportunities, land tenure and market imbalances. But increasingly scientists are arguing that rural development must also proceed alongside proper management of the natural environment. Without this, the possible negative consequences for food supply, water quality, biodiversity and other aspects of the environment that we all depend upon, so-called ecological services, are severe. There are countless examples of how agricultural development has caused signficant and often irreversible damage to the natural fabric that supports society. The challenge is how to develop, while ensuring that the decisions made now will lead to sustainable use of the land for decades to come? Conventionally, computer models have provided guidance about future consequences of human activities and climate change on key environmental conditons. But there is increasing criticism that the models do not handle well the possibility that the natural environment can change in unpredictable ways. We know that natural environments can change in complex ways, as with flooding and forest fire, but when humans are involved these changes can be even more unpredictable - and many of the current models do not deal with this well. There is the danger that existing models are providing a false clarity of the future. Our research addresses this problem in a novel way. We argue that contemporary rural landscsapes are the product of their history, and that we can learn much from analysing how the mixture of human actions, climate and ecology has effectively 'evolved' to the state that we see today. This is no idle thought. Many studies have shown that the time taken for ecological processes to change is often over relatively long timescales. For example, pollution of rivers and lakes by sewage and fertlizers can take several decades from the start of the pollution to the whole water system reacting in terms of fish losses or build-up of poisonous algae. Sometimes, ecosytems can withstand a good deal of stress from human activities, but when they finally give way the result can be very damaging. In the lower Yangtze river basin, where the research is set, history describes a catalogue of human catastrophes wrought by flood, famine and poor agricultural practice. Even today, there is widespread rural poverty across many agricultural settings, and many environmental problems. There is accelerating soil erosion on the hilly lands; deteriorating water quality in irrigation channels, rivers and lakes; the ever-present threat of flooding; coastal erosion from rising sea-levels; pressure to produce more food for the rising city populations at a time when the rural population is declining and getting older. We will compile records for local indigenous knowledge, socio-economic data and ecological change for the lower Yangtze basin as a whole and for four selected counties, two of which we have already worked in, for upto the last 200 years or so. These data will be set up within a newly developed application for Google Earth so that we can easily show politicians, administrators, advisors, and farmers the changes that the environment has already experienced and how it might change in the future. We will analyse the trends mathematically and statistically in order to evaluate the sustainability of the current form of agricultural management. We will meet with academics, agencies and rural communities to discuss the implications of the results, how the results compare with their own perceptions of change, and what might be the best alternative futures to aim for.

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  • Funder: European Commission Project Code: 266941
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  • Funder: European Commission Project Code: 225260
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