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In recent years, regional haze weather appears frequently in China. The North China Plain is one of the four main regions in China heavily afflicted by haze. Since 2013, there have been many times of haze event in the North China Plain, and the quite severe haze pollution incidents took place in May 5–7, June 26–29 and September 28–30. This paper, investigates into these three severe haze episodes...
A major challenge for sustainable tourism is the disparity of economic benefits for local residents. This paper provides a model of tourism areas' economic benefit domain within the framework of sustainable tourism. Field investigation by questionnaire and interview are performed in the Badaling Great Wall tourism area, a world cultural heritage site, and through which the threshold and spatial structure...
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