Shengkui Cheng

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This paper analyzes a model depicting the trend of Chinese urbanization and explores relationships between urbanization and the supply and demand of major energy and mineral resources and between the gross domestic product (GDP) and the urbanization of China. Then it predicts China s supply and demand trends from 2005 to 2050. It is predicted that until(More)
Alpine grassland of Tibet is a frangible ecosystem in terms of carbon (C) emission. Yak dung is an important resident energy with about 80 % of yak dung combusted for energy in the north Tibetan plateau. This paper investigated the impact of dung combustion on the C cycle of the alpine grassland ecosystem in north Tibet, China. During the growing season of(More)
Traditional Ecological Knowledge (TEK) is one of the components of the Globally Important Agricultural Heritage Systems (GIAHS), which are good examples of evolutionary adapted socio-ecosystems in human history. The Hani Rice Terraces System, located in China’s southwestern Yunnan Province, is a living example of GIAHS. The Hani Rice Terraces system has(More)
The current pressure on production resources of the People’s Republic of China, such as land and water to feed the growing population, necessitates the assessment of farming practices. This is particularly critical in the North China Plain, which is the food bowl of the country. This study assesses the economic, environmental and socio-institutional aspects(More)
School plate waste is of particular concern worldwide due to its adverse impacts not only on resource use and the environment, but also on students’ health, physical maturation, and academic achievement in the long term. Previous studies on school plate waste have all been conducted in industrialized countries, and more studies are badly needed in(More)
Food losses and food waste (FLW) have become a global concern in recent years and emerge as a priority in the global and national political agenda (e.g., with Target 12.3 in the new United Nations Sustainable Development Goals). A good understanding of the availability and quality of global FLW data is a prerequisite for tracking progress on reduction(More)
Consumer food waste has attracted increasing public, academic, and political attention in recent years, due to its adverse resource, environmental, and socioeconomic impacts. The scales and patterns of consumer food waste, especially in developing countries, however, remain poorly understood, which may hinder the global effort of reducing food waste. In(More)
To evaluate the effects of hydraulic engineering on river ecosystem services, a set of indicator system and quantitative methods, which included the appraisal principles, classification of river services and indicator selection were established. The river ecosystem services could be classified into four types: water supply and related services (e.g.,(More)
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